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gl_engine: luma visual differneces fix

Browse source 
https://github.com/thorvg/thorvg/issues/3045
This commit is contained in:
Sergii Liebodkin 2025-03-20 21:56:01 +00:00 • committed by Hermet Park
parent eddd8961f3
commit a1ca566c48
1 changed files with 2 additions and 2 deletions
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4
src/renderer/gl_engine/tvgGlShaderSrc.cpp
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@ -436,7 +436,7 @@ const char* MASK_LUMA_FRAG_SHADER = TVG_COMPOSE_SHADER(
maskColor = vec4(maskColor.rgb / maskColor.a, maskColor.a); \n
} \n
\n
FragColor = srcColor * (0.299 * maskColor.r + 0.587 * maskColor.g + 0.114 * maskColor.b) * maskColor.a; \n
FragColor = srcColor * dot(maskColor.rgb, vec3(0.2125, 0.7154, 0.0721)) * maskColor.a; \n
} \n
);
@ -450,7 +450,7 @@ const char* MASK_INV_LUMA_FRAG_SHADER = TVG_COMPOSE_SHADER(
{ \n
vec4 srcColor = texture(uSrcTexture, vUV); \n
vec4 maskColor = texture(uMaskTexture, vUV); \n
float luma = (0.299 * maskColor.r + 0.587 * maskColor.g + 0.114 * maskColor.b); \n
float luma = dot(maskColor.rgb, vec3(0.2125, 0.7154, 0.0721)); \n
FragColor = srcColor * (1.0 - luma); \n
} \n
);