Add depth function to conditional compiling

Source/Engine/Graphics/GPUContext.h

@@ -182,11 +182,26 @@ public:
     API_FUNCTION() virtual void Clear(GPUTextureView* rt, const Color& color) = 0;
 
     /// <summary>
-    /// Clears depth buffer.
+    /// Clears depth buffer with custom value.
     /// </summary>
     /// <param name="depthBuffer">The depth buffer to clear.</param>
     /// <param name="depthValue">The clear depth value.</param>
-    API_FUNCTION() virtual void ClearDepth(GPUTextureView* depthBuffer, float depthValue = 0.0f) = 0;
+    API_FUNCTION() virtual void ClearDepthCustom(GPUTextureView* depthBuffer, float depthValue) = 0;
+
+    /// <summary>
+    /// Clears depth buffer with default value.
+    /// </summary>
+    /// <param name="depthBuffer">The depth buffer to clear.</param>
+    /// <param name="depthValue">The clear depth value.</param>
+    API_FUNCTION() FORCE_INLINE void ClearDepth(GPUTextureView* depthBuffer) {
+
+#if FLAX_REVERSE_Z
+        ClearDepthCustom(depthBuffer, 0.0f);
+#else
+        ClearDepthCustom(depthBuffer, 0.0f);
+#endif
+
+    }
 
     /// <summary>
     /// Clears an unordered access buffer with a float value.

Source/Engine/Graphics/GPUDevice.cpp

@@ -130,7 +130,11 @@ GPUPipelineState::Description GPUPipelineState::Description::Default =
     true, // DepthEnable
     true, // DepthWriteEnable
     true, // DepthClipEnable
+#if FLAX_REVERSE_Z
     ComparisonFunc::Greater, // DepthFunc
+#else
+    ComparisonFunc::Less, // DepthFunc
+#endif
     false, // StencilEnable
     0xff, // StencilReadMask
     0xff, // StencilWriteMask
@@ -154,7 +158,11 @@ GPUPipelineState::Description GPUPipelineState::Description::DefaultNoDepth =
     false, // DepthEnable
     false, // DepthWriteEnable
     false, // DepthClipEnable
+#if FLAX_REVERSE_Z
     ComparisonFunc::Greater, // DepthFunc
+#else
+    ComparisonFunc::Less, // DepthFunc
+#endif
     false, // StencilEnable
     0xff, // StencilReadMask
     0xff, // StencilWriteMask
@@ -178,7 +186,11 @@ GPUPipelineState::Description GPUPipelineState::Description::DefaultFullscreenTr
     false, // DepthEnable
     false, // DepthWriteEnable
     false, // DepthClipEnable
+#if FLAX_REVERSE_Z
     ComparisonFunc::Greater, // DepthFunc
+#else
+    ComparisonFunc::Less, // DepthFunc
+#endif
     false, // StencilEnable
     0xff, // StencilReadMask
     0xff, // StencilWriteMask

Source/Engine/Graphics/Materials/DeferredMaterialShader.cpp

@@ -196,7 +196,11 @@ bool DeferredMaterialShader::Load()
     // Motion Vectors pass
     psDesc.DepthWriteEnable = false;
     psDesc.DepthEnable = true;
+#if FLAX_REVERSE_Z
     psDesc.DepthFunc = ComparisonFunc::GreaterEqual;
+#else
+    psDesc.DepthFunc = ComparisonFunc::LessEqual;
+#endif
     psDesc.VS = _shader->GetVS("VS");
     psDesc.PS = _shader->GetPS("PS_MotionVectors");
     _cache.MotionVectors.Init(psDesc);
@@ -214,7 +218,11 @@ bool DeferredMaterialShader::Load()
     psDesc.DepthClipEnable = false;
     psDesc.DepthWriteEnable = true;
     psDesc.DepthEnable = true;
+#if FLAX_REVERSE_Z
     psDesc.DepthFunc = ComparisonFunc::Greater;
+#else
+    psDesc.DepthFunc = ComparisonFunc::Less;
+#endif
     psDesc.HS = nullptr;
     psDesc.DS = nullptr;
     GPUShaderProgramVS* instancedDepthPassVS;

Source/Engine/Graphics/Materials/DeformableMaterialShader.cpp

@@ -173,7 +173,11 @@ bool DeformableMaterialShader::Load()
     psDesc.DepthClipEnable = false;
     psDesc.DepthWriteEnable = true;
     psDesc.DepthEnable = true;
+#if FLAX_REVERSE_Z
     psDesc.DepthFunc = ComparisonFunc::Greater;
+#else
+    psDesc.DepthFunc = ComparisonFunc::Less;
+#endif
     psDesc.HS = nullptr;
     psDesc.DS = nullptr;
     _cache.Depth.Init(psDesc);

Source/Engine/Graphics/Materials/ForwardMaterialShader.cpp

@@ -205,7 +205,11 @@ bool ForwardMaterialShader::Load()
     psDesc.DepthClipEnable = false;
     psDesc.DepthWriteEnable = true;
     psDesc.DepthEnable = true;
+#if FLAX_REVERSE_Z
     psDesc.DepthFunc = ComparisonFunc::Greater;
+#else
+    psDesc.DepthFunc = ComparisonFunc::Less;
+#endif
     psDesc.HS = nullptr;
     psDesc.DS = nullptr;
     psDesc.VS = _shader->GetVS("VS");

Source/Engine/Graphics/Materials/TerrainMaterialShader.cpp

@@ -185,7 +185,11 @@ bool TerrainMaterialShader::Load()
     psDesc.DepthClipEnable = false;
     psDesc.DepthWriteEnable = true;
     psDesc.DepthEnable = true;
+#if FLAX_REVERSE_Z
     psDesc.DepthFunc = ComparisonFunc::Greater;
+#else
+    psDesc.DepthFunc = ComparisonFunc::Less;
+#endif
     psDesc.HS = nullptr;
     psDesc.DS = nullptr;
     // TODO: masked terrain materials (depth pass should clip holes)

Source/Engine/GraphicsDevice/DirectX/DX11/GPUContextDX11.cpp

@@ -166,7 +166,7 @@ void GPUContextDX11::Clear(GPUTextureView* rt, const Color& color)
     }
 }
 
-void GPUContextDX11::ClearDepth(GPUTextureView* depthBuffer, float depthValue)
+void GPUContextDX11::ClearDepthCustom(GPUTextureView* depthBuffer, float depthValue)
 {
     auto depthBufferDX11 = static_cast<GPUTextureViewDX11*>(depthBuffer);
 

Source/Engine/GraphicsDevice/DirectX/DX11/GPUContextDX11.h

@@ -113,7 +113,7 @@ public:
     void* GetNativePtr() const override;
     bool IsDepthBufferBinded() override;
     void Clear(GPUTextureView* rt, const Color& color) override;
-    void ClearDepth(GPUTextureView* depthBuffer, float depthValue) override;
+    void ClearDepthCustom(GPUTextureView* depthBuffer, float depthValue) override;
     void ClearUA(GPUBuffer* buf, const Float4& value) override;
     void ClearUA(GPUBuffer* buf, const uint32 value[4]) override;
     void ClearUA(GPUTexture* texture, const uint32 value[4]) override;

Source/Engine/GraphicsDevice/DirectX/DX12/GPUContextDX12.cpp

@@ -713,7 +713,7 @@ void GPUContextDX12::Clear(GPUTextureView* rt, const Color& color)
     }
 }
 
-void GPUContextDX12::ClearDepth(GPUTextureView* depthBuffer, float depthValue)
+void GPUContextDX12::ClearDepthCustom(GPUTextureView* depthBuffer, float depthValue)
 {
     auto depthBufferDX12 = static_cast<GPUTextureViewDX12*>(depthBuffer);
 

Source/Engine/GraphicsDevice/DirectX/DX12/GPUContextDX12.h

@@ -159,7 +159,7 @@ public:
     void* GetNativePtr() const override;
     bool IsDepthBufferBinded() override;
     void Clear(GPUTextureView* rt, const Color& color) override;
-    void ClearDepth(GPUTextureView* depthBuffer, float depthValue) override;
+    void ClearDepthCustom(GPUTextureView* depthBuffer, float depthValue) override;
     void ClearUA(GPUBuffer* buf, const Float4& value) override;
     void ClearUA(GPUBuffer* buf, const uint32 value[4]) override;
     void ClearUA(GPUTexture* texture, const uint32 value[4]) override;

Source/Engine/GraphicsDevice/Null/GPUContextNull.h

@@ -48,7 +48,7 @@ public:
     {
     }
 
-    void ClearDepth(GPUTextureView* depthBuffer, float depthValue) override
+    void ClearDepthCustom(GPUTextureView* depthBuffer, float depthValue) override
     {
     }
 

Source/Engine/GraphicsDevice/Vulkan/GPUContextVulkan.cpp

@@ -797,7 +797,7 @@ void GPUContextVulkan::Clear(GPUTextureView* rt, const Color& color)
     }
 }
 
-void GPUContextVulkan::ClearDepth(GPUTextureView* depthBuffer, float depthValue)
+void GPUContextVulkan::ClearDepthCustom(GPUTextureView* depthBuffer, float depthValue)
 {
     const auto rtVulkan = static_cast<GPUTextureViewVulkan*>(depthBuffer);
 

Source/Engine/GraphicsDevice/Vulkan/GPUContextVulkan.h

@@ -151,7 +151,7 @@ public:
     void* GetNativePtr() const override;
     bool IsDepthBufferBinded() override;
     void Clear(GPUTextureView* rt, const Color& color) override;
-    void ClearDepth(GPUTextureView* depthBuffer, float depthValue) override;
+    void ClearDepthCustom(GPUTextureView* depthBuffer, float depthValue) override;
     void ClearUA(GPUBuffer* buf, const Float4& value) override;
     void ClearUA(GPUBuffer* buf, const uint32 value[4]) override;
     void ClearUA(GPUTexture* texture, const uint32 value[4]) override;