Gloom: Slight adjustment to frame brightness evaluation

skyjake · Sep 1, 2019 · 7a2f391 · 7a2f391
1 parent de961bc
commit 7a2f391
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/doomsday/libs/gloom/net.dengine.gloom.pack/shaders/common/exposure.glsl b/doomsday/libs/gloom/net.dengine.gloom.pack/shaders/common/exposure.glsl
@@ -5,7 +5,7 @@ uniform sampler2D uBrightnessSamples;
 
 float Gloom_Exposure(void) {
     ivec2 sampleSize = textureSize(uBrightnessSamples, 0);
-    vec3 channelWeights = vec3(1.0 / 3.0);
+    vec3 channelWeights = vec3(0.2125, 0.7154, 0.0721);
     float brightest = 0.0;
     for (int x = 0; x < sampleSize.x; ++x) {
         for (int y = 0; y < sampleSize.y; ++y) {

diff --git a/doomsday/libs/gloom/net.dengine.gloom.pack/shaders/tonemap_sample.fsh b/doomsday/libs/gloom/net.dengine.gloom.pack/shaders/tonemap_sample.fsh
@@ -9,7 +9,7 @@ void main(void) {
     // Gather highly averaged colors for brightness analysis.
     // The rendering target is very small for these fragments.
     // Sample values are blended with colors from previous frames.
-    float alpha = 1.0 / uCurrentFrameRate; // TODO: Adjust based on FPS.
-    out_FragColor.rgb = texture(uFramebuf, vUV, -1.5).rgb;
-    out_FragColor.a = alpha;
+    float alpha = 2.0 / uCurrentFrameRate; // TODO: Adjust based on FPS.
+    out_FragColor.rgb = texture(uFramebuf, vUV, -1.0).rgb;
+    out_FragColor.a = min(1.0, alpha);
 }