0xrsydn
6591138bbf
Snapshot before the Python POC is removed. The POC (main.py, effects.py, panel.py, shaders.py, effects/*.glsl, flake.nix) is the reference for the native app under native/. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
17 lines
663 B
GLSL
17 lines
663 B
GLSL
// Halftone dots sized by brightness; dots turn hot orange wherever something moves.
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uniform float cell; // 4.0 .. 40.0 = 10.0
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uniform float heat; // 0.0 .. 6.0 = 3.0
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void main() {
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vec2 grid = resolution / cell;
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vec2 centre = (floor(uv * grid) + 0.5) / grid;
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vec3 c = texture(camera, centre).rgb;
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float luma = dot(c, vec3(0.299, 0.587, 0.114));
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float radius = 0.5 * sqrt(luma);
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float dist = length(fract(uv * grid) - 0.5);
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float mask = 1.0 - smoothstep(radius - 0.05, radius + 0.05, dist);
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float moving = clamp(texture(motion, centre).r * heat, 0.0, 1.0);
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color = vec4(mix(c, vec3(1.0, 0.35, 0.1), moving) * mask, 1.0);
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}
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