[Renderer] Exposure is now fed directly into FSR 2

PanosK92 · Oct 23, 2023 · 09f8634 · 09f8634
1 parent 14a9adb
commit 09f8634
Show file tree

Hide file tree

Showing 3 changed files with 7 additions and 4 deletions.
diff --git a/runtime/RHI/RHI_AMD_FidelityFX.h b/runtime/RHI/RHI_AMD_FidelityFX.h
@@ -53,7 +53,8 @@ namespace Spartan
             RHI_Texture* tex_output,
             Camera* camera,
             float delta_time,
-            float sharpness
+            float sharpness,
+            float exposure
         );
     };
 }
diff --git a/runtime/RHI/Vulkan/Vulkan_AMD_FidelityFX.cpp b/runtime/RHI/Vulkan/Vulkan_AMD_FidelityFX.cpp
@@ -275,7 +275,8 @@ namespace Spartan
         RHI_Texture* tex_output,
         Camera* camera,
         float delta_time_sec,
-        float sharpness
+        float sharpness,
+        float exposure
     )
     {
         // transition to the appropriate layouts (will only happen if needed)
@@ -322,7 +323,7 @@ namespace Spartan
             fsr2_dispatch_description.enableSharpening       = sharpness != 0.0f;
             fsr2_dispatch_description.sharpness              = sharpness;
             fsr2_dispatch_description.frameTimeDelta         = delta_time_sec * 1000.0f; // seconds to milliseconds
-            fsr2_dispatch_description.preExposure            = 1.0f;                     // the exposure value if not using FFX_FSR2_ENABLE_AUTO_EXPOSURE
+            fsr2_dispatch_description.preExposure            = exposure;                 // the exposure value if not using FFX_FSR2_ENABLE_AUTO_EXPOSURE
             fsr2_dispatch_description.renderSize.width       = tex_input->GetWidth();    // the resolution that was used for rendering the input resources
             fsr2_dispatch_description.renderSize.height      = tex_input->GetHeight();   // the resolution that was used for rendering the input resources
             fsr2_dispatch_description.cameraNear             = camera->GetFarPlane();    // far as near because we are using reverse-z

diff --git a/runtime/Rendering/Renderer_Passes.cpp b/runtime/Rendering/Renderer_Passes.cpp
@@ -1919,7 +1919,8 @@ namespace Spartan
             tex_out,
             GetCamera().get(),
             m_cb_frame_cpu.delta_time,
-            sharpness
+            sharpness,
+            GetOption<float>(Renderer_Option::Exposure)
         );
 
         cmd_list->EndTimeblock();