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1 function drawObject_link(ctx, node, angle, xyz, scale, glObj){
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2 // setup VBOs
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3 ctx.enableVertexAttribArray(0);
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4 ctx.enableVertexAttribArray(1);
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5 ctx.enableVertexAttribArray(2);
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6
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7 ctx.bindBuffer(ctx.ARRAY_BUFFER, glObj.vertexObject);
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8 ctx.vertexAttribPointer(2, 3, ctx.FLOAT, false, 0, 0);
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9
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10 ctx.bindBuffer(ctx.ARRAY_BUFFER, glObj.normalObject);
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11 ctx.vertexAttribPointer(0, 3, ctx.FLOAT, false, 0, 0);
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12
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13 ctx.bindBuffer(ctx.ARRAY_BUFFER, glObj.texCoordObject);
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14 ctx.vertexAttribPointer(1, 2, ctx.FLOAT, false, 0, 0);
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15
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16 ctx.bindBuffer(ctx.ELEMENT_ARRAY_BUFFER, glObj.indexObject);
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17
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18 // generate the model-view matrix
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19
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20 var mvMatrix = create_matrix(node,angle, xyz, scale)
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21
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22 // construct the normal matrix from the model-view matrix
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23 var normalMatrix = new J3DIMatrix4(mvMatrix);
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24 normalMatrix.invert();
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25 normalMatrix.transpose();
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26 normalMatrix.setUniform(ctx, ctx.getUniformLocation(ctx.program, "u_normalMatrix"), false);
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27
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28
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29 // construct the model-view * projection matrix
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30 var mvpMatrix = new J3DIMatrix4(ctx.perspectiveMatrix);
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31 mvpMatrix.multiply(mvMatrix);
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32 mvpMatrix.setUniform(ctx, ctx.getUniformLocation(ctx.program, "u_modelViewProjMatrix"), false);
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33
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34 ctx.bindTexture(ctx.TEXTURE_2D, glObj.texture);
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35 ctx.drawElements(ctx.TRIANGLES, glObj.numIndices, ctx.UNSIGNED_SHORT, 0);
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36 }
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37
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38
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39
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40 create_matrix = function(node, angle, xyz, scale){
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41 if(node.parents != null){
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42 var mvMatrix = new J3DIMatrix4()
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43 node.parents.mat.getAsArrayMatrix(mvMatrix.$matrix)
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44 }else{
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45 var mvMatrix = new J3DIMatrix4()
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46 }
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47
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48 var $my_mat = new J3DIMatrix4()
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49
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50 //mvMatrix.translate(xyz[0],xyz[1],xyz[2])
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51 //mvMatrix.quaternion(angle[0],0,1,0);
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52 mvMatrix.rotate(angle[0],0,1,0);
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53 mvMatrix.rotate(angle[1],1,0,0);
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54 mvMatrix.rotate(angle[2],0,0,1);
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55 //mvMatrix.quaternion(angle[1],1,0,0);
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56 //mvMatrix.quaternion(angle[2],0,0,1);
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57 //mvMatrix.rotate(angle[2],0,0,1);
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58 //mvMatrix.translate(-xyz[0],-xyz[1],-xyz[2])
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59
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60 mvMatrix.translate(xyz[0],xyz[1],xyz[2])
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61 mvMatrix.scale(scale, scale, scale)
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62 mvMatrix.getAsArrayMatrix($my_mat.$matrix)
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63 node.mat = $my_mat
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64 //hand_mat(node)
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65
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66 return node.mat
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67 }
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68
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69
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70
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71
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