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Improve shaders, crt effect doesnt warp other shaders when running at the end. Make the blaze more subtle, tweak values and make the smear start from a small point and grow into the cursor

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Martin Larsson 2025-07-08 23:14:21 +02:00
parent 9389cc5741
commit 84fc72f1d6
3 changed files with 54 additions and 28 deletions
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14
ghostty/shaders/cursor_blaze_no_trail.glsl
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@ -19,9 +19,11 @@ float ease(float x) {
return pow(1.0 - x, 3.0);
}
const vec4 TRAIL_COLOR = vec4(0.7, 0.495, 0.111, 0.9);
const vec4 TRAIL_COLOR_ACCENT = vec4(0.8, 0., 0., 1.0);
const float DURATION = 0.1; //IN SECONDS
// Toned down colors with reduced alpha
const vec4 TRAIL_COLOR = vec4(0.7, 0.495, 0.111, 0.5);
const vec4 TRAIL_COLOR_ACCENT = vec4(0.8, 0., 0., 0.6);
const float DURATION = 0.25;
const float EXPANSION_FACTOR = 0.05;
void mainImage(out vec4 fragColor, in vec2 fragCoord)
{
@ -45,10 +47,10 @@ void mainImage(out vec4 fragColor, in vec2 fragCoord)
float progress = clamp((iTime - iTimeCursorChange) / DURATION, 0.0, 1.0);
float easedProgress = ease(progress);
float lineLength = distance(centerCC, centerCP);
float lineLength = distance(centerCC, centerCP) * EXPANSION_FACTOR; // Reduced expansion
//cursorblaze
vec4 trail = mix(TRAIL_COLOR_ACCENT, fragColor, 1. - smoothstep(0., sdfCurrentCursor + .002, 0.004));
trail = mix(TRAIL_COLOR, trail, 1. - smoothstep(0., sdfCurrentCursor + .002, 0.004));
vec4 trail = mix(TRAIL_COLOR_ACCENT, fragColor, 1. - smoothstep(0., sdfCurrentCursor + .001, 0.002)); // Smaller blend radius
trail = mix(TRAIL_COLOR, trail, 1. - smoothstep(0., sdfCurrentCursor + .001, 0.002)); // Smaller blend radius
fragColor = mix(trail, fragColor, 1. - smoothstep(0., sdfCurrentCursor, easedProgress * lineLength));
}