75 lines
2.9 KiB
Ucode
75 lines
2.9 KiB
Ucode
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/**
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* Copyright 1998-2013 Epic Games, Inc. All Rights Reserved.
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*/
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class SplineMeshComponent extends StaticMeshComponent
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native(Mesh);
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/**
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* Structure that holds info about spline, passed to renderer to deform StaticMesh.
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* Also used by Lightmass, so be sure to update Lightmass::FSplineMeshParams and the static lighting code if this changes!
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*/
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struct native SplineMeshParams
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{
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/** Start location of spline, in component space */
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var vector StartPos;
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/** Start tangent of spline, in component space */
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var vector StartTangent;
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/** X and Y scale applied to mesh at start of spline */
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var vector2D StartScale;
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/** Roll around spline applied at start */
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var float StartRoll;
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/** Starting offset of the mesh from the spline, in component space */
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var vector2D StartOffset;
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/** End location of spline, in component space */
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var vector EndPos;
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/** End tangent of spline, in component space */
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var vector EndTangent;
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/** X and Y scale applied to mesh at end of spline */
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var vector2D EndScale;
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/** Roll around spline applied at end */
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var float EndRoll;
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/** Ending offset of the mesh from the spline, in component space */
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var vector2D EndOffset;
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};
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/** Spline that is used to deform mesh */
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var SplineMeshParams SplineParams;
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/** Axis (in component space) that is used to determine X axis for co-ordinates along spline */
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var vector SplineXDir;
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/** If TRUE, will use smooth interpolation (ease in/out) for Scale, Roll, and Offset along this section of spline. If FALSE, uses linear */
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var bool bSmoothInterpRollScale;
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cpptext
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{
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virtual FPrimitiveSceneProxy* CreateSceneProxy();
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virtual void UpdateBounds();
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virtual UBOOL PointCheck(FCheckResult& Result,const FVector& Location,const FVector& Extent,DWORD TraceFlags);
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virtual UBOOL LineCheck(FCheckResult& Result,const FVector& End,const FVector& Start,const FVector& Extent,DWORD TraceFlags);
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/** Allocates an implementation of FStaticLightingMesh that will handle static lighting for this component */
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virtual class FStaticMeshStaticLightingMesh* AllocateStaticLightingMesh(INT LODIndex, const TArray<ULightComponent*>& InRelevantLights);
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/** Calculates the spline transform, including roll, scale, and offset along the spline at a specified distance */
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FMatrix CalcSliceTransform(const USplineComponent* SplineComp, const FLOAT DistanceAlong);
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}
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defaultproperties
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{
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// Temporary hack to avoid self-z-fighting on spline meshes on PC,
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// Which happens because the shader compiler optimizes the depth only pass differently than the base pass,
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// Which produces different depth results due to fp imprecision.
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// This needs to be removed at some point to get rendering performance with spline meshes.
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bUseAsOccluder=FALSE
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SplineXDir=(X=1)
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bUsePrecomputedShadows=TRUE
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`if(`__TW_)
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bAcceptsDynamicDecals=False
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`endif
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}
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