108 lines
2.5 KiB
C++
108 lines
2.5 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "MuT/NodeModifier.h"
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#include "MuT/NodeMesh.h"
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#include "MuT/NodeImage.h"
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#include "MuT/NodeScalar.h"
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#include "MuR/ImageTypes.h"
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#include "MuR/RefCounted.h"
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#include "MuR/Ptr.h"
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#define UE_API MUTABLETOOLS_API
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namespace UE::Mutable::Private
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{
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/** This node modifies a surface node.
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* It allows to extend, cut and morph the parent Surface's meshes.
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* It also allows to patch the parent Surface's textures.
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*/
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class NodeModifierSurfaceEdit : public NodeModifier
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{
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public:
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/** Data for every modified texture. */
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struct FTexture
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{
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/** Name used to match the image with the original one being modified.
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* This should match the MaterialParameterName in a NodeSurfaceNew::FImageData.
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*/
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FString MaterialParameterName;
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/** Image to add if extgending. */
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Ptr<NodeImage> Extend;
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/** Image to blend if patching. */
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Ptr<NodeImage> PatchImage;
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/** Optional mask controlling the blending area. */
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Ptr<NodeImage> PatchMask;
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/** Rects in the parent layout homogeneous UV space to patch. */
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TArray<FBox2f> PatchBlocks;
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/** Type of patching operation. */
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EBlendType PatchBlendType = EBlendType::BT_BLEND;
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/** Patch alpha channel as well? */
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bool bPatchApplyToAlpha = false;
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};
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struct FLOD
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{
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/** Mesh to remove from the modified surface. */
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Ptr<NodeMesh> MeshRemove;
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/** Mesh to add to the modified surface. */
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Ptr<NodeMesh> MeshAdd;
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/** Textures to modify. */
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TArray<FTexture> Textures;
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};
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TArray<FLOD> LODs;
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/** For remove operations, use this strategy to cull faces. */
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EFaceCullStrategy FaceCullStrategy = EFaceCullStrategy::AllVerticesCulled;
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/** Name of the morph to apply to the modified surface if it has it. */
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FString MeshMorph;
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/** Factor of the morph to apply. */
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Ptr<NodeScalar> MorphFactor;
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/** Source modifier guid, used to share resources between LODs and generate a deterministic surface guid. */
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FGuid ModifierGuid;
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public:
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NodeModifierSurfaceEdit()
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{
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// This modifier needs to be applied at the end of the operations.
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bApplyBeforeNormalOperations = false;
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}
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// Node interface
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virtual const FNodeType* GetType() const override { return &StaticType; }
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static const FNodeType* GetStaticType() { return &StaticType; }
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protected:
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/** Forbidden. Manage with the Ptr<> template. */
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~NodeModifierSurfaceEdit() {}
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private:
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static UE_API FNodeType StaticType;
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};
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}
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#undef UE_API
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