Fix some bloom behaviour issues and simplify effects colorization.

app/app.pro

@@ -59,18 +59,16 @@ for(raster_mode, RASTER_MODES) {
 }
 
 for(rgb_shift, BINARY_FLAGS) {
-    for(chroma_on, BINARY_FLAGS) {
-        for(bloom_on, BINARY_FLAGS) {
-            for(curve_on, BINARY_FLAGS) {
-                for(shine_on, BINARY_FLAGS) {
-                    static_variant = terminal_static_rgb$${rgb_shift}_chroma$${chroma_on}_bloom$${bloom_on}_curve$${curve_on}_shine$${shine_on}
-                    static_output = $${VARIANT_SHADER_DIR}/$${static_variant}.frag.qsb
-                    static_target = shader_variant_$${static_variant}
-                    $${static_target}.target = $${static_output}
-                    $${static_target}.depends = $$STATIC_SHADER
-                    $${static_target}.commands = $$QSB_BIN --glsl \"100 es,120,150\" --hlsl 50 --msl 12 --qt6 -DCRT_RGB_SHIFT=$${rgb_shift} -DCRT_CHROMA=$${chroma_on} -DCRT_BLOOM=$${bloom_on} -DCRT_CURVATURE=$${curve_on} -DCRT_FRAME_SHININESS=$${shine_on} -o $${static_output} $$STATIC_SHADER
-                    QMAKE_EXTRA_TARGETS += $${static_target}
-                }
+    for(bloom_on, BINARY_FLAGS) {
+        for(curve_on, BINARY_FLAGS) {
+            for(shine_on, BINARY_FLAGS) {
+                static_variant = terminal_static_rgb$${rgb_shift}_bloom$${bloom_on}_curve$${curve_on}_shine$${shine_on}
+                static_output = $${VARIANT_SHADER_DIR}/$${static_variant}.frag.qsb
+                static_target = shader_variant_$${static_variant}
+                $${static_target}.target = $${static_output}
+                $${static_target}.depends = $$STATIC_SHADER
+                $${static_target}.commands = $$QSB_BIN --glsl \"100 es,120,150\" --hlsl 50 --msl 12 --qt6 -DCRT_RGB_SHIFT=$${rgb_shift} -DCRT_BLOOM=$${bloom_on} -DCRT_CURVATURE=$${curve_on} -DCRT_FRAME_SHININESS=$${shine_on} -o $${static_output} $$STATIC_SHADER
+                QMAKE_EXTRA_TARGETS += $${static_target}
             }
         }
     }

app/qml/ShaderTerminal.qml

@@ -37,12 +37,10 @@ Item {
 
     function staticFragmentPath() {
         var rgbShiftOn = appSettings.rbgShift > 0 ? 1 : 0;
-        var chromaOn = appSettings.chromaColor > 0 ? 1 : 0;
         var bloomOn = appSettings.bloom > 0 ? 1 : 0;
         var curvatureOn = (appSettings.screenCurvature > 0 || appSettings.frameSize > 0) ? 1 : 0;
         var shineOn = appSettings.frameShininess > 0 ? 1 : 0;
         return "qrc:/shaders/terminal_static_rgb" + rgbShiftOn +
-               "_chroma" + chromaOn +
                "_bloom" + bloomOn +
                "_curve" + curvatureOn +
                "_shine" + shineOn +
@@ -112,6 +110,7 @@ Item {
 
         property real frameSize: appSettings.frameSize
         property real frameShininess: appSettings.frameShininess
+        property real bloom: parent.bloomSource ? appSettings.bloom * 2.5 : 0
 
         anchors.fill: parent
         blending: false

app/qml/resources.qrc

@@ -80,38 +80,22 @@
         <file>../shaders/terminal_dynamic_raster3_burn1_frame0_chroma1.frag.qsb</file>
         <file>../shaders/terminal_dynamic_raster3_burn1_frame1_chroma0.frag.qsb</file>
         <file>../shaders/terminal_dynamic_raster3_burn1_frame1_chroma1.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb0_chroma0_bloom0_curve0_shine0.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb0_chroma0_bloom0_curve0_shine1.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb0_chroma0_bloom0_curve1_shine0.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb0_chroma0_bloom0_curve1_shine1.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb0_chroma0_bloom1_curve0_shine0.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb0_chroma0_bloom1_curve0_shine1.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb0_chroma0_bloom1_curve1_shine0.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb0_chroma0_bloom1_curve1_shine1.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb0_chroma1_bloom0_curve0_shine0.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb0_chroma1_bloom0_curve0_shine1.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb0_chroma1_bloom0_curve1_shine0.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb0_chroma1_bloom0_curve1_shine1.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb0_chroma1_bloom1_curve0_shine0.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb0_chroma1_bloom1_curve0_shine1.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb0_chroma1_bloom1_curve1_shine0.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb0_chroma1_bloom1_curve1_shine1.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb1_chroma0_bloom0_curve0_shine0.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb1_chroma0_bloom0_curve0_shine1.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb1_chroma0_bloom0_curve1_shine0.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb1_chroma0_bloom0_curve1_shine1.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb1_chroma0_bloom1_curve0_shine0.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb1_chroma0_bloom1_curve0_shine1.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb1_chroma0_bloom1_curve1_shine0.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb1_chroma0_bloom1_curve1_shine1.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb1_chroma1_bloom0_curve0_shine0.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb1_chroma1_bloom0_curve0_shine1.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb1_chroma1_bloom0_curve1_shine0.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb1_chroma1_bloom0_curve1_shine1.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb1_chroma1_bloom1_curve0_shine0.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb1_chroma1_bloom1_curve0_shine1.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb1_chroma1_bloom1_curve1_shine0.frag.qsb</file>
-        <file>../shaders/terminal_static_rgb1_chroma1_bloom1_curve1_shine1.frag.qsb</file>
+        <file>../shaders/terminal_static_rgb0_bloom0_curve0_shine0.frag.qsb</file>
+        <file>../shaders/terminal_static_rgb0_bloom0_curve0_shine1.frag.qsb</file>
+        <file>../shaders/terminal_static_rgb0_bloom0_curve1_shine0.frag.qsb</file>
+        <file>../shaders/terminal_static_rgb0_bloom0_curve1_shine1.frag.qsb</file>
+        <file>../shaders/terminal_static_rgb0_bloom1_curve0_shine0.frag.qsb</file>
+        <file>../shaders/terminal_static_rgb0_bloom1_curve0_shine1.frag.qsb</file>
+        <file>../shaders/terminal_static_rgb0_bloom1_curve1_shine0.frag.qsb</file>
+        <file>../shaders/terminal_static_rgb0_bloom1_curve1_shine1.frag.qsb</file>
+        <file>../shaders/terminal_static_rgb1_bloom0_curve0_shine0.frag.qsb</file>
+        <file>../shaders/terminal_static_rgb1_bloom0_curve0_shine1.frag.qsb</file>
+        <file>../shaders/terminal_static_rgb1_bloom0_curve1_shine0.frag.qsb</file>
+        <file>../shaders/terminal_static_rgb1_bloom0_curve1_shine1.frag.qsb</file>
+        <file>../shaders/terminal_static_rgb1_bloom1_curve0_shine0.frag.qsb</file>
+        <file>../shaders/terminal_static_rgb1_bloom1_curve0_shine1.frag.qsb</file>
+        <file>../shaders/terminal_static_rgb1_bloom1_curve1_shine0.frag.qsb</file>
+        <file>../shaders/terminal_static_rgb1_bloom1_curve1_shine1.frag.qsb</file>
         <file>../shaders/terminal_frame.frag.qsb</file>
         <file>../shaders/burn_in.frag.qsb</file>
         <file>fonts/unscii/unscii-8-thin.ttf</file>

app/shaders/burn_in.frag

@@ -29,8 +29,10 @@ void main() {
 
     float blurDecay = clamp((burnInLastUpdate - prevLastUpdate) * burnInTime, 0.0, 1.0);
     blurDecay = max(0.0, blurDecay - prevMask);
-    vec3 blurColor = accColor.rgb - vec3(blurDecay);
-    vec3 color = max(blurColor, txtColor);
+    float blurValue = rgb2grey(accColor.rgb) - blurDecay;
+    float txtValue = rgb2grey(txtColor);
+    float colorValue = max(blurValue, txtValue);
+    vec3 color = vec3(colorValue);
 
     fragColor = vec4(color, currMask) * qt_Opacity;
 }

app/shaders/terminal_dynamic.frag

@@ -45,6 +45,7 @@ layout(std140, binding = 0) uniform ubuf {
     vec2 scaleNoiseSize;
     float frameShininess;
     float frameSize;
+    float bloom;
 };
 
 layout(binding = 0) uniform sampler2D noiseSource;
@@ -123,11 +124,12 @@ float randomPass(vec2 coords){
 
 vec3 convertWithChroma(vec3 inColor) {
 #if CRT_CHROMA == 1
-    vec3 outColor = fontColor.rgb * rgb2grey(inColor);
-    outColor = fontColor.rgb * mix(vec3(rgb2grey(inColor)), inColor, chromaColor);
-    return outColor;
+    float grey = rgb2grey(inColor);
+    float denom = max(grey, 0.0001);
+    vec3 foregroundColor = mix(fontColor.rgb, inColor * fontColor.rgb / denom, chromaColor);
+    return mix(backgroundColor.rgb, foregroundColor, grey);
 #else
-    return fontColor.rgb * rgb2grey(inColor);
+    return mix(backgroundColor.rgb, fontColor.rgb, rgb2grey(inColor));
 #endif
 }
 
@@ -150,18 +152,20 @@ void main() {
     color += randomPass(coords * virtualResolution) * glowingLine;
 
     vec3 txt_color = texture(screenBuffer, txt_coords).rgb;
+    float bloomScale = 1.0 + max(bloom, 0.0);
+    txt_color *= bloomScale;
 
 #if CRT_BURN_IN == 1
     vec4 txt_blur = texture(burnInSource, staticCoords);
     float blurDecay = clamp((time - burnInLastUpdate) * burnInTime, 0.0, 1.0);
     vec3 burnInColor = 0.65 * (txt_blur.rgb - vec3(blurDecay));
-    txt_color = max(txt_color, convertWithChroma(burnInColor));
+    txt_color = max(txt_color, burnInColor);
 #endif
 
-    txt_color += fontColor.rgb * vec3(color);
+    txt_color += vec3(color);
     txt_color = applyRasterization(staticCoords, txt_color, virtualResolution, rasterizationIntensity);
 
-    vec3 finalColor = txt_color;
+    vec3 finalColor = convertWithChroma(txt_color);
     float brightness = mix(1.0, vBrightness, step(0.0, flickering));
     finalColor *= brightness;
 

app/shaders/terminal_dynamic.vert

@@ -28,6 +28,7 @@ layout(std140, binding = 0) uniform ubuf {
     vec2 scaleNoiseSize;
     float frameShininess;
     float frameSize;
+    float bloom;
 };
 
 layout(binding = 0) uniform sampler2D noiseSource;

app/shaders/terminal_static.frag

@@ -3,9 +3,6 @@
 #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
@@ -22,10 +19,7 @@ layout(location = 0) out vec4 fragColor;
 layout(std140, binding = 0) uniform ubuf {
     mat4 qt_Matrix;
     float qt_Opacity;
-    vec4 fontColor;
-    vec4 backgroundColor;
     float screenCurvature;
-    float chromaColor;
     float rbgShift;
     float frameShininess;
     float frameSize;
@@ -38,8 +32,6 @@ layout(binding = 2) uniform sampler2D bloomSource;
 
 float min2(vec2 v) { return min(v.x, v.y); }
 float max2(vec2 v) { return max(v.x, v.y); }
-float rgb2grey(vec3 v) { return dot(v, vec3(0.21, 0.72, 0.04)); }
-
 vec2 distortCoordinates(vec2 coords){
     vec2 paddedCoords = coords * (vec2(1.0) + frameSize * 2.0) - frameSize;
     vec2 cc = (paddedCoords - vec2(0.5));
@@ -47,16 +39,6 @@ vec2 distortCoordinates(vec2 coords){
     return (paddedCoords + cc * (1.0 + dist) * dist);
 }
 
-vec3 convertWithChroma(vec3 inColor) {
-#if CRT_CHROMA == 1
-    vec3 outColor = fontColor.rgb * rgb2grey(inColor);
-    outColor = fontColor.rgb * mix(vec3(rgb2grey(inColor)), inColor, chromaColor);
-    return outColor;
-#else
-    return fontColor.rgb * rgb2grey(inColor);
-#endif
-}
-
 void main() {
     vec2 cc = vec2(0.5) - qt_TexCoord0;
 
@@ -84,32 +66,25 @@ void main() {
     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 = txt_color * shownDraw;
 
-    vec3 finalColor;
-#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 = finalColor;
+    vec3 bloomColor = txt_color;
     float bloomAlpha = 0.0;
 #if CRT_BLOOM == 1 || CRT_FRAME_SHININESS == 1
     vec4 bloomFullColor = texture(bloomSource, txt_coords);
-    bloomColor = convertWithChroma(bloomFullColor.rgb);
+    bloomColor = bloomFullColor.rgb;
     bloomAlpha = bloomFullColor.a;
 #endif
 
 #if CRT_BLOOM == 1
     vec3 bloomOnScreen = bloomColor * isScreen;
     finalColor += clamp(bloomOnScreen * bloom * bloomAlpha, 0.0, 0.5);
+    float bloomScale = 1.0 + max(bloom, 0.0);
+    finalColor /= bloomScale;
 #endif
 
 #if CRT_FRAME_SHININESS == 1
-    vec3 reflectionColor = mix(backgroundColor.rgb + bloomColor, finalColor, frameShininess * 0.5);
+    vec3 reflectionColor = mix(bloomColor, finalColor, frameShininess * 0.5);
     finalColor = mix(finalColor, reflectionColor, isReflection);
 #endif
 

app/shaders/terminal_static.vert

@@ -6,10 +6,7 @@ layout(location = 1) in vec2 qt_MultiTexCoord0;
 layout(std140, binding = 0) uniform ubuf {
     mat4 qt_Matrix;
     float qt_Opacity;
-    vec4 fontColor;
-    vec4 backgroundColor;
     float screenCurvature;
-    float chromaColor;
     float rbgShift;
     float frameShininess;
     float frameSize;