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renderer/metal: demonstrate alpha "gain" for thickening fonts

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Aljoscha Krettek
2025-01-06 15:00:44 +01:00
parent e90f667b69
commit 3d3f2127a9
1 changed files with 6 additions and 0 deletions
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6
src/renderer/shaders/cell.metal
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@ -365,6 +365,12 @@ fragment float4 cell_text_fragment(
// Then premult the texture color // Then premult the texture color
float a = textureGrayscale.sample(textureSampler, in.tex_coord).r; float a = textureGrayscale.sample(textureSampler, in.tex_coord).r;
// Demonstrate how we can thicken fonts by applying some "gain" to the
// alpha we get from the texture.
//
// We could make this a configurable knob.
a = pow(a, 1 / 3.0f);
premult = premult * a; premult = premult * a;
return premult; return premult;