diff options
Diffstat (limited to 'dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/cross/cross_vec3_frag_xvaryyconst.frag')
-rw-r--r-- | dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/cross/cross_vec3_frag_xvaryyconst.frag | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/cross/cross_vec3_frag_xvaryyconst.frag b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/cross/cross_vec3_frag_xvaryyconst.frag new file mode 100644 index 0000000000..5109326e41 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/cross/cross_vec3_frag_xvaryyconst.frag @@ -0,0 +1,30 @@ + +/* +Copyright (c) 2019 The Khronos Group Inc. +Use of this source code is governed by an MIT-style license that can be +found in the LICENSE.txt file. +*/ + + +#ifdef GL_ES +precision mediump float; +#endif +varying vec4 color; + +void main (void) +{ + const float M_PI = 3.14159265358979323846; + + // Both are unit vectors + vec3 v1; + vec3 v2 = vec3(1.0, 0.0, 0.0); + + + float theta = color.g * 2.0 * M_PI; + float phi = color.b * 2.0 * M_PI; + v1.x = cos(theta) * sin(phi); + v1.y = sin(theta) * sin(phi); + v1.z = cos(phi); + + gl_FragColor = vec4((cross(v1, v2) + 1.0) / 2.0, 1.0); +} |