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sawine@24
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function Cube(size, context)
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sawine@24
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{
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sawine@24
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var gl = context.gl;
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sawine@24
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this.size = size || 1;
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sawine@24
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this.rotation = {'x': 0.0, 'y': 0.0, 'z': 0.0};
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sawine@24
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sawine@24
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this.positionBuffer = gl.createBuffer();
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sawine@24
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gl.bindBuffer(gl.ARRAY_BUFFER, this.positionBuffer);
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sawine@24
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var vertices = [
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sawine@24
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// Front face
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sawine@24
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-1.0, -1.0, 1.0,
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sawine@24
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1.0, -1.0, 1.0,
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sawine@24
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1.0, 1.0, 1.0,
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sawine@24
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-1.0, 1.0, 1.0,
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sawine@24
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sawine@24
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// Back face
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sawine@24
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-1.0, -1.0, -1.0,
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sawine@24
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-1.0, 1.0, -1.0,
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sawine@24
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1.0, 1.0, -1.0,
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sawine@24
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1.0, -1.0, -1.0,
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sawine@24
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sawine@24
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// Top face
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sawine@24
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-1.0, 1.0, -1.0,
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sawine@24
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-1.0, 1.0, 1.0,
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sawine@24
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1.0, 1.0, 1.0,
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sawine@24
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1.0, 1.0, -1.0,
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sawine@24
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sawine@24
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// Bottom face
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sawine@24
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-1.0, -1.0, -1.0,
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sawine@24
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1.0, -1.0, -1.0,
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sawine@24
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1.0, -1.0, 1.0,
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sawine@24
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-1.0, -1.0, 1.0,
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sawine@24
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sawine@24
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// Right face
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sawine@24
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1.0, -1.0, -1.0,
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sawine@24
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1.0, 1.0, -1.0,
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sawine@24
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1.0, 1.0, 1.0,
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sawine@24
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1.0, -1.0, 1.0,
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sawine@24
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sawine@24
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// Left face
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sawine@24
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-1.0, -1.0, -1.0,
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sawine@24
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-1.0, -1.0, 1.0,
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sawine@24
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-1.0, 1.0, 1.0,
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sawine@24
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-1.0, 1.0, -1.0];
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sawine@24
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gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(vertices), gl.STATIC_DRAW);
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sawine@24
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this.positionBuffer.itemSize = 3;
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sawine@24
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this.positionBuffer.numItems = 24;
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sawine@24
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sawine@25
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this.normalBuffer = gl.createBuffer();
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sawine@25
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gl.bindBuffer(gl.ARRAY_BUFFER, this.normalBuffer);
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sawine@25
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var normals = [// font face
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sawine@25
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0.0, 0.0, 1.0,
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sawine@25
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0.0, 0.0, 1.0,
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sawine@25
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0.0, 0.0, 1.0,
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sawine@25
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0.0, 0.0, 1.0,
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sawine@25
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// back face
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sawine@25
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0.0, 0.0, -1.0,
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sawine@25
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0.0, 0.0, -1.0,
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sawine@25
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0.0, 0.0, -1.0,
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sawine@25
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0.0, 0.0, -1.0,
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sawine@25
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// top face
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sawine@25
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0.0, 1.0, 0.0,
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sawine@25
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0.0, 1.0, 0.0,
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sawine@25
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0.0, 1.0, 0.0,
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sawine@25
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0.0, 1.0, 0.0,
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sawine@25
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// bottom face
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sawine@25
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0.0, -1.0, 0.0,
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sawine@25
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0.0, -1.0, 0.0,
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sawine@25
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0.0, -1.0, 0.0,
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sawine@25
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0.0, -1.0, 0.0,
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sawine@25
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// right face
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sawine@25
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1.0, 0.0, 0.0,
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sawine@25
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1.0, 0.0, 0.0,
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sawine@25
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1.0, 0.0, 0.0,
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sawine@25
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1.0, 0.0, 0.0,
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sawine@25
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// left face
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sawine@25
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-1.0, 0.0, 0.0,
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sawine@25
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-1.0, 0.0, 0.0,
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sawine@25
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-1.0, 0.0, 0.0,
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sawine@25
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-1.0, 0.0, 0.0];
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sawine@25
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gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(normals), gl.STATIC_DRAW);
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sawine@25
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this.normalBuffer.itemSize = 3;
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sawine@25
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this.normalBuffer.numItems = 24;
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sawine@25
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sawine@24
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this.colourBuffer = gl.createBuffer();
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sawine@24
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gl.bindBuffer(gl.ARRAY_BUFFER, this.colourBuffer);
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sawine@24
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var alpha = 1.0;
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sawine@25
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var uni = [1.0, 1.0, 1.0, alpha];
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sawine@25
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var colours = [[0.0, 0.0, 0.0, alpha],
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sawine@25
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[0.0, 0.0, 0.0, alpha],
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sawine@25
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[0.0, 0.0, 0.0, alpha],
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sawine@25
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[0.0, 0.0, 0.0, alpha],
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sawine@25
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[0.0, 0.0, 0.0, alpha],
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sawine@25
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[0.0, 0.0, 0.0, alpha]];
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sawine@24
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var unpackedColours = [];
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sawine@24
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for (var i in colours)
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sawine@24
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{
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sawine@25
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var colour = uni;//colours[i];
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sawine@24
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for (var j = 0; j < 4; j++)
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sawine@24
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{
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sawine@24
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unpackedColours = unpackedColours.concat(colour);
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sawine@24
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}
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sawine@24
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//colours = colours.concat([0.5, 0.5, 1.0, 1.0]);
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sawine@24
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}
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sawine@24
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gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(unpackedColours), gl.STATIC_DRAW);
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sawine@24
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this.colourBuffer.itemSize = 4;
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sawine@24
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this.colourBuffer.numItems = 24;
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sawine@24
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sawine@24
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this.indexBuffer = gl.createBuffer();
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sawine@24
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gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, this.indexBuffer);
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sawine@24
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var indices = [0, 1, 2, 0, 2, 3,
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sawine@24
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4, 5, 6, 4, 6, 7,
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sawine@24
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8, 9, 10, 8, 10, 11,
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sawine@24
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12, 13, 14, 12, 14, 15,
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sawine@24
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16, 17, 18, 16, 18, 19,
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sawine@24
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20, 21, 22, 20, 22, 23];
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sawine@24
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gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(indices), gl.STATIC_DRAW);
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sawine@24
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this.indexBuffer.itemSize = 1;
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sawine@24
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this.indexBuffer.numItems = 36;
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sawine@24
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} |