diff options
Diffstat (limited to '')
-rw-r--r-- | dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/degrees/degrees_vec3_frag_xvary.frag | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/degrees/degrees_vec3_frag_xvary.frag b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/degrees/degrees_vec3_frag_xvary.frag new file mode 100644 index 0000000000..b57c486a74 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/degrees/degrees_vec3_frag_xvary.frag @@ -0,0 +1,19 @@ + +/* +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; + vec3 c = 2.0 * M_PI * 2.0 * (color.rgb - 0.5); + gl_FragColor = vec4(degrees(c) / (2.0 * 360.0) + 0.5, 1.0); +} |