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GP: Make Multiply blend works with opacity

This commit is contained in:
Antonio Vazquez 2018-11-26 22:19:46 +01:00
parent fb262f942e
commit 26df95cff6
1 changed files with 2 additions and 1 deletions
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3
source/blender/draw/engines/gpencil/shaders/gpencil_blend_frag.glsl
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@ -58,7 +58,8 @@ vec4 get_blend_color(int mode, vec4 src_color, vec4 blend_color)
outcolor.a = clamp(src_color.a - (mix_color.a * blend_opacity), 0.0, 1.0);
}
else if (mode == MODE_MULTIPLY) {
mix_color.rgb = mix_color.rgb * mix_color.a * blend_opacity;
/* interpolate between 1 and color using opacity */
mix_color.rgb = mix(vec3(1,1,1), mix_color.rgb * mix_color.a, blend_opacity);
outcolor = src_color * mix_color;
outcolor.a = src_color.a;
}