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>
13 lines
550 B
GLSL
13 lines
550 B
GLSL
// Liquid trails: the previous output is dragged along the motion, swirled a little,
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// and slowly fades back to the live camera.
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uniform float persistence; // 0.0 .. 0.99 = 0.92
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uniform float drag; // 0.0 .. 6.0 = 2.5
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uniform float swirl; // 0.0 .. 0.01 = 0.002
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void main() {
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vec2 centred = uv - 0.5;
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vec2 from = uv - texture(flow, uv).xy * drag + vec2(-centred.y, centred.x) * swirl;
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vec3 trail = texture(prev, from).rgb;
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vec3 live = texture(camera, uv).rgb;
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color = vec4(mix(live, trail, persistence), 1.0);
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}
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