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Add support for main view information in Surface materials during subpass rendering (eg. shadow depth)

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Wojtek Figat
2022-07-29 16:57:57 +02:00
parent 22209108c9
commit 6cf91b1da4
9 changed files with 72 additions and 15 deletions
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4
Source/Engine/Graphics/Materials/DeferredMaterialShader.cpp
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@@ -22,6 +22,8 @@ PACK_STRUCT(struct DeferredMaterialShaderData {
Matrix ViewMatrix;
Matrix PrevViewProjectionMatrix;
Matrix PrevWorldMatrix;
Matrix MainViewProjectionMatrix;
Float4 MainScreenSize;
Float3 ViewPos;
float ViewFar;
Float3 ViewDir;
@@ -86,6 +88,8 @@ void DeferredMaterialShader::Bind(BindParameters& params)
Matrix::Transpose(view.View, materialData->ViewMatrix);
Matrix::Transpose(drawCall.Surface.PrevWorld, materialData->PrevWorldMatrix);
Matrix::Transpose(view.PrevViewProjection, materialData->PrevViewProjectionMatrix);
Matrix::Transpose(view.MainViewProjection, materialData->MainViewProjectionMatrix);
materialData->MainScreenSize = view.MainScreenSize;
materialData->ViewPos = view.Position;
materialData->ViewFar = view.Far;
materialData->ViewDir = view.Direction;

4
Source/Engine/Graphics/Materials/ForwardMaterialShader.cpp
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@@ -24,6 +24,8 @@ PACK_STRUCT(struct ForwardMaterialShaderData {
Matrix ViewMatrix;
Matrix PrevViewProjectionMatrix;
Matrix PrevWorldMatrix;
Matrix MainViewProjectionMatrix;
Float4 MainScreenSize;
Float3 ViewPos;
float ViewFar;
Float3 ViewDir;
@@ -94,6 +96,8 @@ void ForwardMaterialShader::Bind(BindParameters& params)
Matrix::Transpose(view.View, materialData->ViewMatrix);
Matrix::Transpose(drawCall.Surface.PrevWorld, materialData->PrevWorldMatrix);
Matrix::Transpose(view.PrevViewProjection, materialData->PrevViewProjectionMatrix);
Matrix::Transpose(view.MainViewProjection, materialData->MainViewProjectionMatrix);
materialData->MainScreenSize = view.MainScreenSize;
materialData->ViewPos = view.Position;
materialData->ViewFar = view.Far;
materialData->ViewDir = view.Direction;

2
Source/Engine/Graphics/Materials/MaterialShader.h
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@@ -10,7 +10,7 @@
/// <summary>
/// Current materials shader version.
/// </summary>
#define MATERIAL_GRAPH_VERSION 154
#define MATERIAL_GRAPH_VERSION 155
class Material;
class GPUShader;

8
Source/Engine/Graphics/RenderView.cpp
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@@ -60,7 +60,7 @@ void RenderView::Prepare(RenderContext& renderContext)
PrepareCache(renderContext, width, height, taaJitter);
}
void RenderView::PrepareCache(RenderContext& renderContext, float width, float height, const Float2& temporalAAJitter)
void RenderView::PrepareCache(RenderContext& renderContext, float width, float height, const Float2& temporalAAJitter, RenderView* mainView)
{
// The same format used by the Flax common shaders and postFx materials
ViewInfo = Float4(1.0f / Projection.M11, 1.0f / Projection.M22, Far / (Far - Near), (-Far * Near) / (Far - Near) / Far);
@@ -76,6 +76,12 @@ void RenderView::PrepareCache(RenderContext& renderContext, float width, float h
// Ortho views have issues with screen size LOD culling
const float modelLODDistanceFactor = (renderContext.LodProxyView ? renderContext.LodProxyView->IsOrthographicProjection() : IsOrthographicProjection()) ? 100.0f : ModelLODDistanceFactor;
ModelLODDistanceFactorSqrt = modelLODDistanceFactor * modelLODDistanceFactor;
// Setup main view render info
if (!mainView)
mainView = this;
MainViewProjection = mainView->ViewProjection();
MainScreenSize = mainView->ScreenSize;
}
void RenderView::SetUp(const Matrix& view, const Matrix& projection)

13
Source/Engine/Graphics/RenderView.h
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@@ -202,6 +202,16 @@ public:
/// </summary>
API_FIELD() Matrix PrevViewProjection;
/// <summary>
/// The main viewport view * projection matrix.
/// </summary>
API_FIELD() Matrix MainViewProjection;
/// <summary>
/// The main viewport screen size packed (x - width, y - height, zw - inv width, w - inv height).
/// </summary>
API_FIELD() Float4 MainScreenSize;
/// <summary>
/// Square of <see cref="ModelLODDistanceFactor"/>. Cached by rendering backend.
/// </summary>
@@ -220,7 +230,8 @@ public:
/// <param name="width">The rendering width.</param>
/// <param name="height">The rendering height.</param>
/// <param name="temporalAAJitter">The temporal jitter for this frame.</param>
void PrepareCache(RenderContext& renderContext, float width, float height, const Float2& temporalAAJitter);
/// <param name="mainView">The main rendering viewport. Use null if it's top level view; pass pointer to main view for sub-passes like shadow depths.</param>
void PrepareCache(RenderContext& renderContext, float width, float height, const Float2& temporalAAJitter, RenderView* mainView = nullptr);
/// <summary>
/// Determines whether view is perspective projection or orthographic.