diff options
| author |  Brian Osman <brianosman@google.com> | 2017-03-17 09:36:31 -0400 |
|---|---|---|
| committer |  Skia Commit-Bot <skia-commit-bot@chromium.org> | 2017-03-17 14:33:04 +0000 |
| commit | 9bc39bbd1a18d61e4e9c3808c33ea003a8e49938 (patch) | |
| tree | 6ecc7b0eee4e0292b140062fb1b9bace9928d179 /src/effects | |
| parent | e88a1cb20e6b4c9f099070112225a88693a4630b (diff) | |
Add highp to specular lighting intermediate to fix iOS bots
Looks like math was over/under-flowing at default precision, leading to garbage output. This appears to be the minimal change to fix it.
BUG=skia:
Change-Id: I9381dea380be0d8f5af1e765f4ed1403b0ceac70
Reviewed-on: https://skia-review.googlesource.com/9827
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Diffstat (limited to 'src/effects')
| -rw-r--r-- | src/effects/SkLightingImageFilter.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/effects/SkLightingImageFilter.cpp b/src/effects/SkLightingImageFilter.cpp index 925a091268..34e7034602 100644 --- a/src/effects/SkLightingImageFilter.cpp +++ b/src/effects/SkLightingImageFilter.cpp @@ -2027,7 +2027,8 @@ void GrGLSpecularLightingEffect::emitLightFunc(GrGLSLUniformHandler* uniformHand }; SkString lightBody; lightBody.appendf("\tvec3 halfDir = vec3(normalize(surfaceToLight + vec3(0, 0, 1)));\n"); - lightBody.appendf("\tfloat colorScale = %s * pow(dot(normal, halfDir), %s);\n", ks, shininess); + lightBody.appendf("\thighp float colorScale = %s * pow(dot(normal, halfDir), %s);\n", + ks, shininess); lightBody.appendf("\tvec3 color = lightColor * clamp(colorScale, 0.0, 1.0);\n"); lightBody.appendf("\treturn vec4(color, max(max(color.r, color.g), color.b));\n"); fragBuilder->emitFunction(kVec4f_GrSLType, |