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Persist upscaling mode and refine FSR2 jitter behavior

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Kelsi 2026-03-08 20:22:11 -07:00
parent 6fd1c94d99
commit a12126cc7e
3 changed files with 21 additions and 20 deletions
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17
src/rendering/renderer.cpp
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@ -1205,9 +1205,7 @@ void Renderer::endFrame() {
renderFSR2Sharpen();
// Maintain frame bookkeeping
fsr2_.prevViewProjection = fsr2_.useAmdBackend
? camera->getUnjitteredViewProjectionMatrix()
: camera->getViewProjectionMatrix();
fsr2_.prevViewProjection = camera->getViewProjectionMatrix();
fsr2_.prevJitter = camera->getJitter();
camera->clearJitter();
if (fsr2_.useAmdBackend) {
@ -3826,9 +3824,7 @@ bool Renderer::initFSR2Resources() {
fsr2_.amdScratchBufferSize = 0;
} else {
FfxFsr2ContextDescription ctxDesc{};
// AMD path uses unjittered reprojection matrices for motion vectors.
// Keep jitter cancellation off to avoid double compensation jitter.
ctxDesc.flags = FFX_FSR2_ENABLE_AUTO_EXPOSURE;
ctxDesc.flags = FFX_FSR2_ENABLE_AUTO_EXPOSURE | FFX_FSR2_ENABLE_MOTION_VECTORS_JITTER_CANCELLATION;
ctxDesc.maxRenderSize.width = fsr2_.internalWidth;
ctxDesc.maxRenderSize.height = fsr2_.internalHeight;
ctxDesc.displaySize.width = swapExtent.width;
@ -4187,17 +4183,14 @@ void Renderer::dispatchMotionVectors() {
vkCmdBindDescriptorSets(currentCmd, VK_PIPELINE_BIND_POINT_COMPUTE,
fsr2_.motionVecPipelineLayout, 0, 1, &fsr2_.motionVecDescSet, 0, nullptr);
// Reprojection matrices:
// AMD path uses unjittered matrices (FSR handles jitter via desc.jitterOffset).
// Internal fallback keeps existing jittered behavior.
// Reprojection with jittered matrices:
// reconstruct world position from current depth, then project into previous clip.
struct {
glm::mat4 prevViewProjection;
glm::mat4 invCurrentViewProj;
} pc;
glm::mat4 currentVP = fsr2_.useAmdBackend
? camera->getUnjitteredViewProjectionMatrix()
: camera->getViewProjectionMatrix();
glm::mat4 currentVP = camera->getViewProjectionMatrix();
pc.prevViewProjection = fsr2_.prevViewProjection;
pc.invCurrentViewProj = glm::inverse(currentVP);