trying to a add automatic exposure

2025-03-11 22:08:23 +01:00
parent a957b05615
commit 80f86ca95c
10 changed files with 254 additions and 112 deletions
@@ -19,13 +19,31 @@ class ToneMappingPass : public RenderPass {
  private:
    // non-hdr swapchain output
    Gfx::RenderTargetAttachment colorAttachment;
+    Gfx::OShaderBuffer histogramBuffer;
+    Gfx::OShaderBuffer luminanceBuffer;
+
+    float minLogLum = 1;
+    float inverseLogLumRange = 1;
+    float timeCoeff = 1;
+    uint32 numPixels;
+    UVector2 threadGroups;
+    Gfx::ODescriptorLayout histogramLayout;
+    Gfx::PDescriptorSet histogramSet;
+    Gfx::OPipelineLayout histogramPipelineLayout;
+    Gfx::OComputeShader histogramShader;
+    Gfx::PComputePipeline histogramPipeline;
+    Gfx::OComputeShader exposureShader;
+    Gfx::PComputePipeline exposurePipeline;

    Gfx::RenderTargetAttachment hdrInputTexture;
    Gfx::OSampler sampler;

-    Gfx::ODescriptorLayout layout;
-    Gfx::PDescriptorSet set;
-    Gfx::OPipelineLayout pipelineLayout;
+    Vector4 offset = Vector4(0.0);
+    Vector4 slope = Vector4(1.0);
+    Vector4 power = Vector4(1.0);
+    float sat = 1.0;
+    Gfx::ODescriptorLayout tonemappingLayout;
+    Gfx::OPipelineLayout tonemappingPipelineLayout;
    Gfx::OVertexShader vert;
    Gfx::OFragmentShader frag;
    Gfx::PGraphicsPipeline pipeline;