diff options
Diffstat (limited to 'dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/smoothstep/smoothstep_float_frag_xvary_edgeconstquarter_ref.frag')
-rw-r--r-- | dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/smoothstep/smoothstep_float_frag_xvary_edgeconstquarter_ref.frag | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/smoothstep/smoothstep_float_frag_xvary_edgeconstquarter_ref.frag b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/smoothstep/smoothstep_float_frag_xvary_edgeconstquarter_ref.frag new file mode 100644 index 0000000000..811dcdd942 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/smoothstep/smoothstep_float_frag_xvary_edgeconstquarter_ref.frag @@ -0,0 +1,21 @@ + +/* +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 edge0 = 0.25; + const float edge1 = 0.75; + float c = clamp((color.r - edge0) / (edge1 - edge0), 0.0, 1.0); + + gl_FragColor = vec4(c * c * (3.0 - 2.0 * c), 0.0, 0.0, 1.0); +} |