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fix greyscale palette

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This commit is contained in:
Dennis Ranke
2021-11-15 20:42:11 +01:00
parent 90a1c21b22
commit 69d395f6eb
1 changed files with 3 additions and 3 deletions
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4
examples/microw8/palette.cwa
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@@ -36,9 +36,9 @@ start fn gen_palette() {
loop gradients { loop gradients {
let lazy scale = ((i := i + 1) % 64) as f32 / 64 as f32; let lazy scale = ((i := i + 1) % 64) as f32 / 64 as f32;
let inline angle = i as f32 * (3.1416 / 2.0 - 3.1416 / (11.0 * 16.0 * 2.0)); let inline angle = i as f32 * (3.1416 / 2.0 - 3.1416 / (11.0 * 16.0 * 2.0));
let lazy a = max(0.07, sin(angle) * 0.8 * (i < 11*16*4) as f32 + 0.5) * scale; let lazy a = max(0.07, sin(angle) * 0.8 + 0.5) * scale;
let lazy b = scale * scale * 0.6; let lazy b = scale * scale * 0.6;
let inline v = (min(a + b - a * b, 1 as f32) * 255 as f32) as i32; let inline v = (select(i < 11*16*4, min(a + b - a * b, 1 as f32), scale) * 255 as f32) as i32;
i?(120+320*240) = v; i?(120+320*240) = v;
branch_if i < 12*16*4: gradients; branch_if i < 12*16*4: gradients;