Add builtin GaussianSplat forward pass baseline

engine/src/Rendering/Pipelines/BuiltinForwardPipeline.cpp

@@ -4,6 +4,7 @@
 #include "Core/Asset/ResourceManager.h"
 #include "RHI/RHICommandList.h"
 #include "Rendering/Internal/RenderSurfacePipelineUtils.h"
+#include "Rendering/Passes/BuiltinGaussianSplatPass.h"
 #include "Rendering/Materials/RenderMaterialResolve.h"
 #include "Rendering/Passes/BuiltinVolumetricPass.h"
 #include "Rendering/RenderSurface.h"
@@ -66,6 +67,7 @@ std::vector<RHI::RHIResourceView*> CollectSurfaceColorAttachments(const RenderSu
 } // namespace
 
 BuiltinForwardPipeline::BuiltinForwardPipeline() {
+    m_gaussianSplatPass = std::make_unique<Passes::BuiltinGaussianSplatPass>();
     m_volumetricPass = std::make_unique<Passes::BuiltinVolumetricPass>();
 }
 
@@ -109,11 +111,16 @@ RHI::InputLayoutDesc BuiltinForwardPipeline::BuildInputLayout() {
 
 bool BuiltinForwardPipeline::Initialize(const RenderContext& context) {
     return EnsureInitialized(context) &&
+        m_gaussianSplatPass != nullptr &&
+        m_gaussianSplatPass->Initialize(context) &&
         m_volumetricPass != nullptr &&
         m_volumetricPass->Initialize(context);
 }
 
 void BuiltinForwardPipeline::Shutdown() {
+    if (m_gaussianSplatPass != nullptr) {
+        m_gaussianSplatPass->Shutdown();
+    }
     if (m_volumetricPass != nullptr) {
         m_volumetricPass->Shutdown();
     }
@@ -128,6 +135,17 @@ bool BuiltinForwardPipeline::Render(
         return false;
     }
 
+    if (m_volumetricPass != nullptr &&
+        !sceneData.visibleVolumes.empty() &&
+        !m_volumetricPass->PrepareVolumeResources(context, sceneData)) {
+        return false;
+    }
+    if (m_gaussianSplatPass != nullptr &&
+        !sceneData.visibleGaussianSplats.empty() &&
+        !m_gaussianSplatPass->PrepareGaussianSplatResources(context, sceneData)) {
+        return false;
+    }
+
     const RenderPassContext passContext = {
         context,
         surface,
@@ -150,6 +168,9 @@ bool BuiltinForwardPipeline::Render(
     if (renderResult) {
         renderResult = ExecuteForwardSkyboxPass(passContext);
     }
+    if (renderResult && m_gaussianSplatPass != nullptr) {
+        renderResult = m_gaussianSplatPass->Execute(passContext);
+    }
     if (renderResult && m_volumetricPass != nullptr) {
         renderResult = m_volumetricPass->Execute(passContext);
     }