Created
February 9, 2011 05:40
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function webGLStart() { | |
//Create object | |
var cube = new PhiloGL.O3D.Model({ | |
texture: 'nehe.gif', | |
vertices: [[-1, -1, 1], | |
[ 1, -1, 1], | |
[ 1, 1, 1], | |
[-1, 1, 1], | |
[-1, -1, -1], | |
[-1, 1, -1], | |
[ 1, 1, -1], | |
[ 1, -1, -1], | |
[-1, 1, -1], | |
[-1, 1, 1], | |
[ 1, 1, 1], | |
[ 1, 1, -1], | |
[-1, -1, -1], | |
[ 1, -1, -1], | |
[ 1, -1, 1], | |
[-1, -1, 1], | |
[ 1, -1, -1], | |
[ 1, 1, -1], | |
[ 1, 1, 1], | |
[ 1, -1, 1], | |
[-1, -1, -1], | |
[-1, -1, 1], | |
[-1, 1, 1], | |
[-1, 1, -1]], | |
texCoords: [ | |
// Front face | |
0.0, 0.0, | |
1.0, 0.0, | |
1.0, 1.0, | |
0.0, 1.0, | |
// Back face | |
1.0, 0.0, | |
1.0, 1.0, | |
0.0, 1.0, | |
0.0, 0.0, | |
// Top face | |
0.0, 1.0, | |
0.0, 0.0, | |
1.0, 0.0, | |
1.0, 1.0, | |
// Bottom face | |
1.0, 1.0, | |
0.0, 1.0, | |
0.0, 0.0, | |
1.0, 0.0, | |
// Right face | |
1.0, 0.0, | |
1.0, 1.0, | |
0.0, 1.0, | |
0.0, 0.0, | |
// Left face | |
0.0, 0.0, | |
1.0, 0.0, | |
1.0, 1.0, | |
0.0, 1.0 | |
], | |
indices: [0, 1, 2, 0, 2, 3, | |
4, 5, 6, 4, 6, 7, | |
8, 9, 10, 8, 10, 11, | |
12, 13, 14, 12, 14, 15, | |
16, 17, 18, 16, 18, 19, | |
20, 21, 22, 20, 22, 23] | |
}); | |
PhiloGL('lesson05-canvas', { | |
program: { | |
from: 'ids', | |
vs: 'shader-vs', | |
fs: 'shader-fs' | |
}, | |
textures: { | |
src: ['nehe.gif'] | |
}, | |
onError: function() { | |
alert("An error ocurred while loading the application"); | |
}, | |
onLoad: function(app) { | |
var gl = app.gl, | |
canvas = app.canvas, | |
program = app.program, | |
camera = app.camera, | |
view = new PhiloGL.Mat4, | |
rCube = 0; | |
gl.viewport(0, 0, canvas.width, canvas.height); | |
gl.clearColor(0, 0, 0, 1); | |
gl.clearDepth(1); | |
gl.enable(gl.DEPTH_TEST); | |
gl.depthFunc(gl.LEQUAL); | |
camera.modelView.id(); | |
//set buffers with cube data | |
program.setBuffers({ | |
'aVertexPosition': { | |
value: cube.toFloat32Array('vertices'), | |
size: 3 | |
}, | |
'aTextureCoord': { | |
value: cube.toFloat32Array('texCoords'), | |
size: 2 | |
}, | |
'indices': { | |
value: cube.toUint16Array('indices'), | |
bufferType: gl.ELEMENT_ARRAY_BUFFER, | |
size: 1 | |
} | |
}); | |
function drawScene() { | |
gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); | |
//draw Cube | |
rCube += 0.01; | |
cube.position.set(0, 0, -8); | |
cube.rotation.set(rCube, rCube, rCube); | |
//update element matrix | |
cube.update(); | |
//get new view matrix out of element and camera matrices | |
view.mulMat42(camera.modelView, cube.matrix); | |
//set attributes, indices and textures | |
program.setBuffer('aVertexPosition') | |
.setBuffer('aTextureCoord') | |
.setBuffer('indices') | |
.setTexture('nehe.gif'); | |
//set uniforms | |
program.setUniform('uMVMatrix', view) | |
.setUniform('uPMatrix', camera.projection) | |
.setUniform('uSampler', 0); | |
//draw triangles | |
gl.drawElements(gl.TRIANGLES, cube.indices.length, gl.UNSIGNED_SHORT, 0); | |
} | |
setInterval(drawScene, 1000 / 60); | |
} | |
}); | |
} |
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