Game/WebGL: dandy/resources/J3DI.js annotate

annotate dandy/resources/J3DI.js @ 1:54589bb5e57d

add dandy

author	Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
date	Thu, 23 Feb 2012 14:51:33 +0900
parents
children

rev	line source
1 54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1 /*
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	2 * Copyright (C) 2009 Apple Inc. All Rights Reserved.
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	3 *
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	4 * Redistribution and use in source and binary forms, with or without
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	5 * modification, are permitted provided that the following conditions
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	6 * are met:
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	7 * 1. Redistributions of source code must retain the above copyright
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	8 * notice, this list of conditions and the following disclaimer.
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	9 * 2. Redistributions in binary form must reproduce the above copyright
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	10 * notice, this list of conditions and the following disclaimer in the
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	11 * documentation and/or other materials provided with the distribution.
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	12 *
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	24 */
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	25
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	26 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	27 // initWebGL
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	28 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	29 // Initialize the Canvas element with the passed name as a WebGL object and return the
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	30 // WebGLRenderingContext.
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	31 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	32 // Load shaders with the passed names and create a program with them. Return this program
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	33 // in the 'program' property of the returned context.
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	34 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	35 // For each string in the passed attribs array, bind an attrib with that name at that index.
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	36 // Once the attribs are bound, link the program and then use it.
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	37 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	38 // Set the clear color to the passed array (4 values) and set the clear depth to the passed value.
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	39 // Enable depth testing and blending with a blend func of (SRC_ALPHA, ONE_MINUS_SRC_ALPHA)
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	40 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	41 // A console function is added to the context: console(string). This can be replaced
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	42 // by the caller. By default, it maps to the window.console() function on WebKit and to
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	43 // an empty function on other browsers.
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	44 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	45 function initWebGL(canvasName, vshader, fshader, attribs, clearColor, clearDepth)
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	46 {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	47 var canvas = document.getElementById(canvasName);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	48 var gl = canvas.getContext("experimental-webgl");
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	49 if (!gl) {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	50 alert("No WebGL context found");
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	51 return null;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	52 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	53
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	54 // Add a console
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	55 gl.console = ("console" in window) ? window.console : { log: function() { } };
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	56
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	57 // create our shaders
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	58 var vertexShader = loadShader(gl, vshader);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	59 var fragmentShader = loadShader(gl, fshader);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	60
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	61 if (!vertexShader \|\| !fragmentShader)
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	62 return null;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	63
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	64 // Create the program object
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	65 gl.program = gl.createProgram();
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	66
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	67 if (!gl.program)
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	68 return null;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	69
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	70 // Attach our two shaders to the program
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	71 gl.attachShader (gl.program, vertexShader);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	72 gl.attachShader (gl.program, fragmentShader);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	73
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	74 // Bind attributes
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	75 for (var i = 0; i < attribs.length; ++i)
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	76 gl.bindAttribLocation (gl.program, i, attribs[i]);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	77
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	78 // Link the program
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	79 gl.linkProgram(gl.program);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	80
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	81 // Check the link status
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	82 var linked = gl.getProgramParameter(gl.program, gl.LINK_STATUS);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	83 if (!linked) {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	84 // something went wrong with the link
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	85 var error = gl.getProgramInfoLog (gl.program);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	86 gl.console.log("Error in program linking:"+error);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	87
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	88 gl.deleteProgram(gl.program);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	89 gl.deleteProgram(fragmentShader);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	90 gl.deleteProgram(vertexShader);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	91
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	92 return null;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	93 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	94
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	95 gl.useProgram(gl.program);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	96
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	97 gl.clearColor(clearColor[0], clearColor[1], clearColor[2], clearColor[3]);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	98 gl.clearDepth(clearDepth);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	99
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	100 // gl.enable(gl.DEPTH_TEST);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	101 gl.enable(gl.BLEND);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	102 gl.blendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	103
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	104 return gl;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	105 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	106
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	107 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	108 // loadShader
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	109 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	110 // 'shaderId' is the id of a <script> element containing the shader source string.
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	111 // Load this shader and return the WebGLShader object corresponding to it.
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	112 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	113 function loadShader(ctx, shaderId)
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	114 {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	115 var shaderScript = document.getElementById(shaderId);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	116 if (!shaderScript) {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	117 ctx.console.log("*** Error: shader script '"+shaderId+"' not found");
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	118 return null;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	119 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	120
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	121 if (shaderScript.type == "x-shader/x-vertex")
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	122 var shaderType = ctx.VERTEX_SHADER;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	123 else if (shaderScript.type == "x-shader/x-fragment")
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	124 var shaderType = ctx.FRAGMENT_SHADER;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	125 else {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	126 ctx.console.log("*** Error: shader script '"+shaderId+"' of undefined type '"+shaderScript.type+"'");
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	127 return null;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	128 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	129
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	130 // Create the shader object
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	131 var shader = ctx.createShader(shaderType);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	132 if (shader == null) {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	133 ctx.console.log("*** Error: unable to create shader '"+shaderId+"'");
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	134 return null;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	135 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	136
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	137 // Load the shader source
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	138 ctx.shaderSource(shader, shaderScript.text);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	139
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	140 // Compile the shader
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	141 ctx.compileShader(shader);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	142
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	143 // Check the compile status
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	144 var compiled = ctx.getShaderParameter(shader, ctx.COMPILE_STATUS);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	145 if (!compiled) {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	146 // Something went wrong during compilation; get the error
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	147 var error = ctx.getShaderInfoLog(shader);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	148 ctx.console.log("*** Error compiling shader '"+shaderId+"':"+error);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	149 ctx.deleteShader(shader);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	150 return null;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	151 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	152
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	153 return shader;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	154 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	155
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	156 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	157 // makeBox
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	158 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	159 // Create a box with vertices, normals and texCoords. Create VBOs for each as well as the index array.
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	160 // Return an object with the following properties:
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	161 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	162 // normalObject WebGLBuffer object for normals
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	163 // texCoordObject WebGLBuffer object for texCoords
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	164 // vertexObject WebGLBuffer object for vertices
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	165 // indexObject WebGLBuffer object for indices
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	166 // numIndices The number of indices in the indexObject
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	167 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	168 function makeBox(ctx)
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	169 {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	170 // box
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	171 // v6----- v5
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	172 // /\| /\|
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	173 // v1------v0\|
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	174 // \| \| \| \|
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	175 // \| \|v7---\|-\|v4
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	176 // \|/ \|/
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	177 // v2------v3
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	178 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	179 // vertex coords array
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	180 var vertices = new Float32Array(
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	181 [ 1, 1, 1, -1, 1, 1, -1,-1, 1, 1,-1, 1, // v0-v1-v2-v3 front
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	182 1, 1, 1, 1,-1, 1, 1,-1,-1, 1, 1,-1, // v0-v3-v4-v5 right
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	183 1, 1, 1, 1, 1,-1, -1, 1,-1, -1, 1, 1, // v0-v5-v6-v1 top
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	184 -1, 1, 1, -1, 1,-1, -1,-1,-1, -1,-1, 1, // v1-v6-v7-v2 left
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	185 -1,-1,-1, 1,-1,-1, 1,-1, 1, -1,-1, 1, // v7-v4-v3-v2 bottom
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	186 1,-1,-1, -1,-1,-1, -1, 1,-1, 1, 1,-1 ] // v4-v7-v6-v5 back
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	187 );
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	188
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	189 // normal array
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	190 var normals = new Float32Array(
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	191 [ 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, // v0-v1-v2-v3 front
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	192 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, // v0-v3-v4-v5 right
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	193 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, // v0-v5-v6-v1 top
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	194 -1, 0, 0, -1, 0, 0, -1, 0, 0, -1, 0, 0, // v1-v6-v7-v2 left
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	195 0,-1, 0, 0,-1, 0, 0,-1, 0, 0,-1, 0, // v7-v4-v3-v2 bottom
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	196 0, 0,-1, 0, 0,-1, 0, 0,-1, 0, 0,-1 ] // v4-v7-v6-v5 back
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	197 );
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	198
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	199
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	200 // texCoord array
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	201 var texCoords = new Float32Array(
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	202 [ 1, 1, 0, 1, 0, 0, 1, 0, // v0-v1-v2-v3 front
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	203 0, 1, 0, 0, 1, 0, 1, 1, // v0-v3-v4-v5 right
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	204 1, 0, 1, 1, 0, 1, 0, 0, // v0-v5-v6-v1 top
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	205 1, 1, 0, 1, 0, 0, 1, 0, // v1-v6-v7-v2 left
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	206 0, 0, 1, 0, 1, 1, 0, 1, // v7-v4-v3-v2 bottom
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	207 0, 0, 1, 0, 1, 1, 0, 1 ] // v4-v7-v6-v5 back
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	208 );
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	209
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	210 // index array
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	211 var indices = new Uint8Array(
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	212 [ 0, 1, 2, 0, 2, 3, // front
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	213 4, 5, 6, 4, 6, 7, // right
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	214 8, 9,10, 8,10,11, // top
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	215 12,13,14, 12,14,15, // left
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	216 16,17,18, 16,18,19, // bottom
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	217 20,21,22, 20,22,23 ] // back
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	218 );
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	219
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	220 var retval = { };
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	221
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	222 retval.normalObject = ctx.createBuffer();
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	223 ctx.bindBuffer(ctx.ARRAY_BUFFER, retval.normalObject);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	224 ctx.bufferData(ctx.ARRAY_BUFFER, normals, ctx.STATIC_DRAW);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	225
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	226 retval.texCoordObject = ctx.createBuffer();
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	227 ctx.bindBuffer(ctx.ARRAY_BUFFER, retval.texCoordObject);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	228 ctx.bufferData(ctx.ARRAY_BUFFER, texCoords, ctx.STATIC_DRAW);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	229
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	230 retval.vertexObject = ctx.createBuffer();
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	231 ctx.bindBuffer(ctx.ARRAY_BUFFER, retval.vertexObject);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	232 ctx.bufferData(ctx.ARRAY_BUFFER, vertices, ctx.STATIC_DRAW);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	233
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	234 ctx.bindBuffer(ctx.ARRAY_BUFFER, null);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	235
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	236 retval.indexObject = ctx.createBuffer();
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	237 ctx.bindBuffer(ctx.ELEMENT_ARRAY_BUFFER, retval.indexObject);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	238 ctx.bufferData(ctx.ELEMENT_ARRAY_BUFFER, indices, ctx.STATIC_DRAW);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	239 ctx.bindBuffer(ctx.ELEMENT_ARRAY_BUFFER, null);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	240
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	241 retval.numIndices = indices.length;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	242
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	243 return retval;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	244 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	245
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	246 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	247 // makeSphere
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	248 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	249 // Create a sphere with the passed number of latitude and longitude bands and the passed radius.
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	250 // Sphere has vertices, normals and texCoords. Create VBOs for each as well as the index array.
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	251 // Return an object with the following properties:
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	252 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	253 // normalObject WebGLBuffer object for normals
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	254 // texCoordObject WebGLBuffer object for texCoords
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	255 // vertexObject WebGLBuffer object for vertices
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	256 // indexObject WebGLBuffer object for indices
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	257 // numIndices The number of indices in the indexObject
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	258 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	259 function makeSphere(ctx, radius, lats, longs)
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	260 {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	261 var geometryData = [ ];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	262 var normalData = [ ];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	263 var texCoordData = [ ];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	264 var indexData = [ ];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	265
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	266 for (var latNumber = 0; latNumber <= lats; ++latNumber) {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	267 for (var longNumber = 0; longNumber <= longs; ++longNumber) {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	268 var theta = latNumber * Math.PI / lats;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	269 var phi = longNumber * 2 * Math.PI / longs;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	270 var sinTheta = Math.sin(theta);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	271 var sinPhi = Math.sin(phi);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	272 var cosTheta = Math.cos(theta);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	273 var cosPhi = Math.cos(phi);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	274
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	275 var x = cosPhi * sinTheta;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	276 var y = cosTheta;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	277 var z = sinPhi * sinTheta;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	278 var u = 1-(longNumber/longs);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	279 var v = latNumber/lats;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	280
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	281 normalData.push(x);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	282 normalData.push(y);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	283 normalData.push(z);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	284 texCoordData.push(u);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	285 texCoordData.push(v);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	286 geometryData.push(radius * x);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	287 geometryData.push(radius * y);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	288 geometryData.push(radius * z);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	289 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	290 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	291
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	292 for (var latNumber = 0; latNumber < lats; ++latNumber) {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	293 for (var longNumber = 0; longNumber < longs; ++longNumber) {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	294 var first = (latNumber * (longs+1)) + longNumber;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	295 var second = first + longs + 1;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	296 indexData.push(first);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	297 indexData.push(second);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	298 indexData.push(first+1);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	299
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	300 indexData.push(second);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	301 indexData.push(second+1);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	302 indexData.push(first+1);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	303 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	304 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	305
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	306 var retval = { };
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	307
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	308 retval.normalObject = ctx.createBuffer();
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	309 ctx.bindBuffer(ctx.ARRAY_BUFFER, retval.normalObject);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	310 ctx.bufferData(ctx.ARRAY_BUFFER, new Float32Array(normalData), ctx.STATIC_DRAW);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	311
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	312 retval.texCoordObject = ctx.createBuffer();
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	313 ctx.bindBuffer(ctx.ARRAY_BUFFER, retval.texCoordObject);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	314 ctx.bufferData(ctx.ARRAY_BUFFER, new Float32Array(texCoordData), ctx.STATIC_DRAW);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	315
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	316 retval.vertexObject = ctx.createBuffer();
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	317 ctx.bindBuffer(ctx.ARRAY_BUFFER, retval.vertexObject);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	318 ctx.bufferData(ctx.ARRAY_BUFFER, new Float32Array(geometryData), ctx.STATIC_DRAW);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	319
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	320 retval.numIndices = indexData.length;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	321 retval.indexObject = ctx.createBuffer();
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	322 ctx.bindBuffer(ctx.ELEMENT_ARRAY_BUFFER, retval.indexObject);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	323 ctx.bufferData(ctx.ELEMENT_ARRAY_BUFFER, new Uint16Array(indexData), ctx.STREAM_DRAW);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	324
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	325 return retval;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	326 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	327
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	328 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	329 // loadObj
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	330 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	331 // Load a .obj file from the passed URL. Return an object with a 'loaded' property set to false.
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	332 // When the object load is complete, the 'loaded' property becomes true and the following
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	333 // properties are set:
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	334 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	335 // normalObject WebGLBuffer object for normals
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	336 // texCoordObject WebGLBuffer object for texCoords
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	337 // vertexObject WebGLBuffer object for vertices
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	338 // indexObject WebGLBuffer object for indices
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	339 // numIndices The number of indices in the indexObject
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	340 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	341 function loadObj(ctx, url)
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	342 {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	343 var obj = { loaded : false };
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	344 obj.ctx = ctx;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	345 var req = new XMLHttpRequest();
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	346 req.obj = obj;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	347 req.onreadystatechange = function () { processLoadObj(req) };
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	348 req.open("GET", url, true);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	349 req.send(null);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	350 return obj;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	351 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	352
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	353 function processLoadObj(req)
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	354 {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	355 req.obj.ctx.console.log("req="+req)
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	356 // only if req shows "complete"
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	357 if (req.readyState == 4) {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	358 doLoadObj(req.obj, req.responseText);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	359 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	360 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	361
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	362 function doLoadObj(obj, text)
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	363 {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	364 vertexArray = [ ];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	365 normalArray = [ ];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	366 textureArray = [ ];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	367 indexArray = [ ];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	368
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	369 var vertex = [ ];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	370 var normal = [ ];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	371 var texture = [ ];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	372 var facemap = { };
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	373 var index = 0;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	374
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	375 // This is a map which associates a range of indices with a name
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	376 // The name comes from the 'g' tag (of the form "g NAME"). Indices
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	377 // are part of one group until another 'g' tag is seen. If any indices
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	378 // come before a 'g' tag, it is given the group name "_unnamed"
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	379 // 'group' is an object whose property names are the group name and
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	380 // whose value is a 2 element array with [<first index>, <num indices>]
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	381 var groups = { };
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	382 var currentGroup = [-1, 0];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	383 groups["_unnamed"] = currentGroup;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	384
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	385 var lines = text.split("\n");
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	386 for (var lineIndex in lines) {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	387 var line = lines[lineIndex].replace(/[ \t]+/g, " ").replace(/\s\s*$/, "");
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	388
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	389 // ignore comments
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	390 if (line[0] == "#")
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	391 continue;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	392
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	393 var array = line.split(" ");
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	394 if (array[0] == "g") {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	395 // new group
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	396 currentGroup = [indexArray.length, 0];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	397 groups[array[1]] = currentGroup;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	398 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	399 else if (array[0] == "v") {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	400 // vertex
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	401 vertex.push(parseFloat(array[1]));
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	402 vertex.push(parseFloat(array[2]));
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	403 vertex.push(parseFloat(array[3]));
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	404 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	405 else if (array[0] == "vt") {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	406 // normal
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	407 texture.push(parseFloat(array[1]));
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	408 texture.push(parseFloat(array[2]));
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	409 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	410 else if (array[0] == "vn") {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	411 // normal
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	412 normal.push(parseFloat(array[1]));
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	413 normal.push(parseFloat(array[2]));
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	414 normal.push(parseFloat(array[3]));
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	415 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	416 else if (array[0] == "f") {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	417 // face
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	418 if (array.length != 4) {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	419 obj.ctx.console.log("*** Error: face '"+line+"' not handled");
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	420 continue;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	421 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	422
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	423 for (var i = 1; i < 4; ++i) {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	424 if (!(array[i] in facemap)) {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	425 // add a new entry to the map and arrays
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	426 var f = array[i].split("/");
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	427 var vtx, nor, tex;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	428
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	429 if (f.length == 1) {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	430 vtx = parseInt(f[0]) - 1;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	431 nor = vtx;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	432 tex = vtx;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	433 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	434 else if (f.length = 3) {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	435 vtx = parseInt(f[0]) - 1;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	436 tex = parseInt(f[1]) - 1;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	437 nor = parseInt(f[2]) - 1;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	438 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	439 else {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	440 obj.ctx.console.log("*** Error: did not understand face '"+array[i]+"'");
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	441 return null;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	442 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	443
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	444 // do the vertices
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	445 var x = 0;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	446 var y = 0;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	447 var z = 0;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	448 if (vtx * 3 + 2 < vertex.length) {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	449 x = vertex[vtx*3];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	450 y = vertex[vtx*3+1];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	451 z = vertex[vtx*3+2];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	452 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	453 vertexArray.push(x);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	454 vertexArray.push(y);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	455 vertexArray.push(z);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	456
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	457 // do the textures
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	458 x = 0;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	459 y = 0;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	460 if (tex * 2 + 1 < texture.length) {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	461 x = texture[tex*2];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	462 y = texture[tex*2+1];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	463 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	464 textureArray.push(x);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	465 textureArray.push(y);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	466
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	467 // do the normals
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	468 x = 0;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	469 y = 0;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	470 z = 1;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	471 if (nor * 3 + 2 < normal.length) {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	472 x = normal[nor*3];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	473 y = normal[nor*3+1];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	474 z = normal[nor*3+2];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	475 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	476 normalArray.push(x);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	477 normalArray.push(y);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	478 normalArray.push(z);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	479
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	480 facemap[array[i]] = index++;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	481 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	482
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	483 indexArray.push(facemap[array[i]]);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	484 currentGroup[1]++;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	485 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	486 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	487 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	488
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	489 // set the VBOs
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	490 obj.normalObject = obj.ctx.createBuffer();
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	491 obj.ctx.bindBuffer(obj.ctx.ARRAY_BUFFER, obj.normalObject);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	492 obj.ctx.bufferData(obj.ctx.ARRAY_BUFFER, new Float32Array(normalArray), obj.ctx.STATIC_DRAW);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	493
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	494 obj.texCoordObject = obj.ctx.createBuffer();
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	495 obj.ctx.bindBuffer(obj.ctx.ARRAY_BUFFER, obj.texCoordObject);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	496 obj.ctx.bufferData(obj.ctx.ARRAY_BUFFER, new Float32Array(textureArray), obj.ctx.STATIC_DRAW);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	497
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	498 obj.vertexObject = obj.ctx.createBuffer();
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	499 obj.ctx.bindBuffer(obj.ctx.ARRAY_BUFFER, obj.vertexObject);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	500 obj.ctx.bufferData(obj.ctx.ARRAY_BUFFER, new Float32Array(vertexArray), obj.ctx.STATIC_DRAW);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	501
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	502 obj.numIndices = indexArray.length;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	503 obj.indexObject = obj.ctx.createBuffer();
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	504 obj.ctx.bindBuffer(obj.ctx.ELEMENT_ARRAY_BUFFER, obj.indexObject);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	505 obj.ctx.bufferData(obj.ctx.ELEMENT_ARRAY_BUFFER, new Uint16Array(indexArray), obj.ctx.STREAM_DRAW);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	506
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	507 obj.groups = groups;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	508
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	509 obj.loaded = true;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	510 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	511
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	512 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	513 // loadImageTexture
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	514 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	515 // Load the image at the passed url, place it in a new WebGLTexture object and return the WebGLTexture.
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	516 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	517 function loadImageTexture(ctx, url)
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	518 {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	519 var texture = ctx.createTexture();
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	520 texture.image = new Image();
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	521 texture.image.onload = function() { doLoadImageTexture(ctx, texture.image, texture) }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	522 texture.image.src = url;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	523 return texture;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	524 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	525
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	526 function doLoadImageTexture(ctx, image, texture)
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	527 {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	528 ctx.bindTexture(ctx.TEXTURE_2D, texture);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	529 ctx.texImage2D(
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	530 ctx.TEXTURE_2D, 0, ctx.RGBA, ctx.RGBA, ctx.UNSIGNED_BYTE, image);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	531 ctx.texParameteri(ctx.TEXTURE_2D, ctx.TEXTURE_MAG_FILTER, ctx.LINEAR);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	532 ctx.texParameteri(ctx.TEXTURE_2D, ctx.TEXTURE_MIN_FILTER, ctx.LINEAR);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	533 ctx.texParameteri(ctx.TEXTURE_2D, ctx.TEXTURE_WRAP_S, ctx.CLAMP_TO_EDGE);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	534 ctx.texParameteri(ctx.TEXTURE_2D, ctx.TEXTURE_WRAP_T, ctx.CLAMP_TO_EDGE);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	535 //ctx.generateMipmap(ctx.TEXTURE_2D)
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	536 ctx.bindTexture(ctx.TEXTURE_2D, null);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	537 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	538
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	539 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	540 // Framerate object
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	541 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	542 // This object keeps track of framerate and displays it as the innerHTML text of the
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	543 // HTML element with the passed id. Once created you call snapshot at the end
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	544 // of every rendering cycle. Every 500ms the framerate is updated in the HTML element.
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	545 //
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	546 Framerate = function(id)
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	547 {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	548 this.numFramerates = 10;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	549 this.framerateUpdateInterval = 500;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	550 this.id = id;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	551
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	552 this.renderTime = -1;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	553 this.framerates = [ ];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	554 self = this;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	555 var fr = function() { self.updateFramerate() }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	556 setInterval(fr, this.framerateUpdateInterval);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	557 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	558
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	559 Framerate.prototype.updateFramerate = function()
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	560 {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	561 var tot = 0;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	562 for (var i = 0; i < this.framerates.length; ++i)
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	563 tot += this.framerates[i];
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	564
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	565 var framerate = tot / this.framerates.length;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	566 framerate = Math.round(framerate);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	567 document.getElementById(this.id).innerHTML = "Framerate:"+framerate+"fps";
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	568 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	569
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	570 Framerate.prototype.snapshot = function()
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	571 {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	572 if (this.renderTime < 0)
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	573 this.renderTime = new Date().getTime();
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	574 else {
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	575 var newTime = new Date().getTime();
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	576 var t = newTime - this.renderTime;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	577 var framerate = 1000/t;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	578 this.framerates.push(framerate);
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	579 while (this.framerates.length > this.numFramerates)
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	580 this.framerates.shift();
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	581 this.renderTime = newTime;
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	582 }
54589bb5e57d add dandy Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	583 }