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small TAA tweak

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Xonk
2026-07-14 00:38:40 -04:00
parent 0a23d149c6
commit addf795e42
1 changed files with 6 additions and 8 deletions
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shaders/dimensions/composite5.fsh
+6 -8
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@@ -335,8 +335,8 @@ vec4 computeTAA(vec2 texcoord, bool hand){
float tuner = 1.25;
vec3 momentsA = (col0+col1+col2+col3+col4+col5+col6+col7+col8)/9.0;
vec3 momentsB = (col0*col0+col1*col1+col2*col2+col3*col3+col4*col4+col5*col5+col6*col6+col7*col7+col8*col8)/9.0;
vec3 standardDev = max(sqrt(momentsB - momentsA*momentsA),0.0);
vec3 standardDev = sqrt(max(momentsB - momentsA*momentsA,0.0));
vec3 colMin = momentsA - tuner*standardDev;
vec3 colMax = momentsA + tuner*standardDev;
@@ -344,8 +344,6 @@ vec4 computeTAA(vec2 texcoord, bool hand){
// colMin = min(col0,min(col1,min(col2,min(col3, min(col4, min(col5, min(col6, min(col7, col8))))))));
// colMin = 0.5 * (colMin + min(col0,min(col5,min(col6,min(col7,col8)))));
// colMax = 0.5 * (colMax + max(col0,max(col5,max(col6,max(col7,col8)))));
// return vec4(colMin,1.0);
// return vec4(colMax,1.0);
#endif
#if CRITICAL_DAMAGE_TAKEN_EFFECT_START > 0
@@ -356,6 +354,9 @@ vec4 computeTAA(vec2 texcoord, bool hand){
vec3 frameHistory = max(FastCatmulRom(colortex5, previousPosition.xy, vec4(texelSize, 1.0/texelSize), 0.75).xyz,1e-7);
vec3 clampedframeHistory = clamp(frameHistory, colMin, colMax);
// return the first moments instead of history if the difference across frames in the neighborhood is enough for it. helps reduces ghosting without looking too grainy/flickery
clampedframeHistory = mix(clampedframeHistory, momentsA, clamp(abs(clampedframeHistory - frameHistory)/clampedframeHistory,0.0,1.0));
float blendingFactor = BLEND_FACTOR;
// reduce history usage if the camera moves to reduce artifacts in motion.
blendingFactor = clamp(cameraMovement, blendingFactor, BLEND_FACTOR_DURING_MOVEMENT);
@@ -371,12 +372,9 @@ vec4 computeTAA(vec2 texcoord, bool hand){
}
#endif
////// Increases blending factor when far from AABB, reduces ghosting
blendingFactor = clamp(blendingFactor + luma(abs(clampedframeHistory - frameHistory)/clampedframeHistory),0.0,1.0);
////// Blend current pixel with clamped history, apply fast tonemap beforehand to reduce flickering
vec3 finalResult = invTonemap(mix(tonemap(clampedframeHistory), tonemap(currentFrame), blendingFactor));
#ifdef SCREENSHOT_MODE
// when this is on, do "infinite frame accumulation "
if (hideGUI == 0) return vec4(finalResult, 1.0);