API:
WebGL 3D Perspective:
webgl-examples:
一个使用方便的 javascript处理向量和矩阵运算的库。sylvester:
性能监视器(监视FPS):
动画引擎
顶点着色器根据需要, 也可以完成其他工作。例如,决定哪个包含 texel面部纹理的坐标,可以应用于顶点;通过法线来确定应用到顶点的光照因子等。依此类推,这些信息可以存储在变化(varying)或属性(attributes)属性中,以便与片段着色器共享
<script id="shader-vs" type="x-shader/x-vertex"> attribute vec3 aVertexPosition; attribute vec4 aVertexColor; uniform mat4 uMVMatrix; uniform mat4 uPMatrix; varying lowp vec4 vColor; void main(void) { gl_Position = uPMatrix * uMVMatrix * vec4(aVertexPosition, 1.0); vColor = aVertexColor; } </script>
等价于:
` attribute vec3 aVertexPosition; attribute vec4 aVertexColor; uniform mat4 uMVMatrix; uniform mat4 uPMatrix; varying lowp vec4 vColor; void main(void) { gl_Position = uPMatrix * uMVMatrix * vec4(aVertexPosition, 1.0); vColor = aVertexColor; } `
等价于:
[ "attribute vec3 aVertexPosition;", "attribute vec4 aVertexColor;", "uniform mat4 uMVMatrix;", "uniform mat4 uPMatrix;", "varying lowp vec4 vColor;", "void main(void) {", "gl_Position = uPMatrix * uMVMatrix * vec4(aVertexPosition, 1.0);", "vColor = aVertexColor;", "}" ].join( "\n" );