mirror of
https://github.com/kovidgoyal/kitty
synced 2026-07-21 07:55:10 +02:00
22 lines
560 B
GLSL
22 lines
560 B
GLSL
#version 140
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#line 0 7893002
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uniform vec2 cursor_edge_x;
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uniform vec2 cursor_edge_y;
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uniform vec3 trail_color;
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uniform float trail_opacity;
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in vec2 frag_pos;
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out vec4 final_color;
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void main() {
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float opacity = trail_opacity;
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// Dont render if fragment is within cursor area
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float in_x = step(cursor_edge_x[0], frag_pos.x) * step(frag_pos.x, cursor_edge_x[1]);
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float in_y = step(cursor_edge_y[1], frag_pos.y) * step(frag_pos.y, cursor_edge_y[0]);
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opacity *= 1.0f - in_x * in_y;
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final_color = vec4(trail_color * opacity, opacity);
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}
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