uniformMatrix.html

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Copyright (c) 2019 The Khronos Group Inc.

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Tests.startUnit = function () {

  var canvas = document.getElementById('gl');

  var gl = wrapGLContext(getGLContext(canvas));

  return [gl];

Tests.testUniformf = function(gl) {

  var sh = new Filter(gl, 'foobar-vert', 'foobar-frag');

  sh.apply(function(f){

    var foo = f.uniform('foo');

    var bar = f.uniform('bar');

    var bar3 = f.uniform('bar3');

    gl.uniformMatrix4fv(foo, false, [1,0,0,0, 0,2,0,0, 0,0,3,0, 0,0,0,4]);

    gl.uniformMatrix2fv(bar, false, [2,1, 2,2]);

    gl.uniformMatrix3fv(bar3, false, [2,2,2, 2,2,2, 2,1,2]);

});

  var d = new Uint8Array(4);

  gl.readPixels(0,0,1,1,gl.RGBA, gl.UNSIGNED_BYTE, d);

  assertEquals([1,2,3,8], [d[0], d[1], d[2], d[3]]);

  sh.destroy();

Tests.endUnit = function(gl) {

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<script id="foobar-vert" type="x-shader/x-vertex">

attribute vec3 Vertex;

attribute vec2 Tex;

uniform mat2 bar;

uniform mat3 bar3;

varying vec4 texCoord0;

void main()

    texCoord0 = vec4(Tex.s, 1.0-Tex.t, bar[0][1]+bar3[2][1], 0.0);

    gl_Position = vec4(Vertex, 1.0);

</script>

<script id="foobar-frag" type="x-shader/x-fragment">

precision mediump float;

uniform mat4 foo;

varying vec4 texCoord0;

void main()

    gl_FragColor = vec4(foo[0][0]/256.0, foo[1][1]/256.0, foo[2][2]/256.0, foo[3][3]*texCoord0.z/256.0);

</script>

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