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Code Issues Releases Wiki Activity

Create multiple shader variants for the various configurations.

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This commit is contained in:
Filippo Scognamiglio
2025-12-23 21:37:31 +01:00
parent 7038c02173
commit f851dd0a72
69 changed files with 304 additions and 267 deletions
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101
app/shaders/terminal_static.frag
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@@ -1,41 +1,33 @@
#version 440
#ifndef CRT_RGB_SHIFT
#define CRT_RGB_SHIFT 1
#endif
#ifndef CRT_CHROMA
#define CRT_CHROMA 1
#endif
#ifndef CRT_BLOOM
#define CRT_BLOOM 1
#endif
#ifndef CRT_CURVATURE
#define CRT_CURVATURE 1
#endif
layout(location = 0) in vec2 qt_TexCoord0;
layout(location = 0) out vec4 fragColor;
layout(std140, binding = 0) uniform ubuf {
mat4 qt_Matrix;
float qt_Opacity;
float time;
vec4 fontColor;
vec4 backgroundColor;
float shadowLength;
vec2 virtualResolution;
float rasterizationIntensity;
int rasterizationMode;
float burnInLastUpdate;
float burnInTime;
float burnIn;
float staticNoise;
float screenCurvature;
float glowingLine;
float chromaColor;
vec2 jitterDisplacement;
float ambientLight;
float jitter;
float horizontalSync;
float horizontalSyncStrength;
float flickering;
float displayTerminalFrame;
vec2 scaleNoiseSize;
float screen_brightness;
float bloom;
float rbgShift;
float frameShadowCoeff;
float frameShininess;
vec4 frameColor;
float frameSize;
float prevLastUpdate;
};
layout(binding = 1) uniform sampler2D source;
@@ -53,11 +45,13 @@ vec2 distortCoordinates(vec2 coords){
}
vec3 convertWithChroma(vec3 inColor) {
#if CRT_CHROMA == 1
vec3 outColor = fontColor.rgb * rgb2grey(inColor);
if (chromaColor != 0.0) {
outColor = fontColor.rgb * mix(vec3(rgb2grey(inColor)), inColor, chromaColor);
}
outColor = fontColor.rgb * mix(vec3(rgb2grey(inColor)), inColor, chromaColor);
return outColor;
#else
return fontColor.rgb * rgb2grey(inColor);
#endif
}
void main() {
@@ -68,44 +62,49 @@ void main() {
float isScreen = 1.0;
vec2 txt_coords = qt_TexCoord0;
if (screenCurvature > 0.0 || frameSize > 0.0) {
vec2 curvatureCoords = distortCoordinates(qt_TexCoord0);
shownDraw = max2(step(vec2(0.0), curvatureCoords) - step(vec2(1.0), curvatureCoords));
isScreen = min2(step(vec2(0.0), curvatureCoords) - step(vec2(1.0), curvatureCoords));
isReflection = shownDraw - isScreen;
txt_coords = -2.0 * curvatureCoords + 3.0 * step(vec2(0.0), curvatureCoords) * curvatureCoords - 3.0 * step(vec2(1.0), curvatureCoords) * curvatureCoords;
}
#if CRT_CURVATURE == 1
vec2 curvatureCoords = distortCoordinates(qt_TexCoord0);
shownDraw = max2(step(vec2(0.0), curvatureCoords) - step(vec2(1.0), curvatureCoords));
isScreen = min2(step(vec2(0.0), curvatureCoords) - step(vec2(1.0), curvatureCoords));
isReflection = shownDraw - isScreen;
txt_coords = -2.0 * curvatureCoords + 3.0 * step(vec2(0.0), curvatureCoords) * curvatureCoords - 3.0 * step(vec2(1.0), curvatureCoords) * curvatureCoords;
#endif
vec3 txt_color = texture(source, txt_coords).rgb;
if (rbgShift > 0.0) {
vec2 displacement = vec2(12.0, 0.0) * rbgShift;
vec3 rightColor = texture(source, txt_coords + displacement).rgb;
vec3 leftColor = texture(source, txt_coords - displacement).rgb;
txt_color.r = leftColor.r * 0.10 + rightColor.r * 0.30 + txt_color.r * 0.60;
txt_color.g = leftColor.g * 0.20 + rightColor.g * 0.20 + txt_color.g * 0.60;
txt_color.b = leftColor.b * 0.30 + rightColor.b * 0.10 + txt_color.b * 0.60;
}
#if CRT_RGB_SHIFT == 1
vec2 displacement = vec2(12.0, 0.0) * rbgShift;
vec3 rightColor = texture(source, txt_coords + displacement).rgb;
vec3 leftColor = texture(source, txt_coords - displacement).rgb;
txt_color.r = leftColor.r * 0.10 + rightColor.r * 0.30 + txt_color.r * 0.60;
txt_color.g = leftColor.g * 0.20 + rightColor.g * 0.20 + txt_color.g * 0.60;
txt_color.b = leftColor.b * 0.30 + rightColor.b * 0.10 + txt_color.b * 0.60;
#endif
txt_color += vec3(0.0001);
float greyscale_color = rgb2grey(txt_color);
vec3 finalColor;
if (chromaColor > 0.0) {
vec3 foregroundColor = mix(fontColor.rgb, txt_color * fontColor.rgb / greyscale_color, chromaColor);
finalColor = mix(backgroundColor.rgb, foregroundColor, greyscale_color * shownDraw);
} else {
finalColor = mix(backgroundColor.rgb, fontColor.rgb, greyscale_color * shownDraw);
}
#if CRT_CHROMA == 1
vec3 foregroundColor = mix(fontColor.rgb, txt_color * fontColor.rgb / greyscale_color, chromaColor);
finalColor = mix(backgroundColor.rgb, foregroundColor, greyscale_color * shownDraw);
#else
finalColor = mix(backgroundColor.rgb, fontColor.rgb, greyscale_color * shownDraw);
#endif
vec3 bloomColor;
float bloomAlpha;
#if CRT_BLOOM == 1
vec4 bloomFullColor = texture(bloomSource, txt_coords);
vec3 bloomColor = convertWithChroma(bloomFullColor.rgb);
float bloomAlpha = bloomFullColor.a;
bloomColor = convertWithChroma(bloomFullColor.rgb);
bloomAlpha = bloomFullColor.a;
if (bloom > 0.0) {
vec3 bloomOnScreen = bloomColor * isScreen;
finalColor += clamp(bloomOnScreen * bloom * bloomAlpha, 0.0, 0.5);
}
vec3 bloomOnScreen = bloomColor * isScreen;
finalColor += clamp(bloomOnScreen * bloom * bloomAlpha, 0.0, 0.5);
#else
bloomColor = finalColor;
bloomAlpha = 0.0;
#endif
if (frameShininess > 0.0) {
float shine = clamp(frameShininess, 0.0, 1.0);