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289 lines
6.5 KiB
C++
289 lines
6.5 KiB
C++
#ifndef OPENMW_COMPONENTS_NIF_NODE_HPP
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#define OPENMW_COMPONENTS_NIF_NODE_HPP
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#include <unordered_map>
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#include <osg/Plane>
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#include "base.hpp"
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namespace Nif
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{
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struct NiNode;
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struct NiBoundingVolume
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{
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enum Type
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{
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BASE_BV = 0xFFFFFFFF,
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SPHERE_BV = 0,
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BOX_BV = 1,
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CAPSULE_BV = 2,
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LOZENGE_BV = 3,
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UNION_BV = 4,
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HALFSPACE_BV = 5
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};
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struct NiSphereBV
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{
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osg::Vec3f center;
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float radius{ 0.f };
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};
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struct NiBoxBV
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{
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osg::Vec3f center;
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Matrix3 axes;
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osg::Vec3f extents;
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};
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struct NiCapsuleBV
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{
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osg::Vec3f center, axis;
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float extent{ 0.f }, radius{ 0.f };
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};
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struct NiLozengeBV
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{
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float radius{ 0.f }, extent0{ 0.f }, extent1{ 0.f };
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osg::Vec3f center, axis0, axis1;
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};
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struct NiHalfSpaceBV
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{
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osg::Plane plane;
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osg::Vec3f origin;
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};
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unsigned int type;
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NiSphereBV sphere;
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NiBoxBV box;
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NiCapsuleBV capsule;
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NiLozengeBV lozenge;
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std::vector<NiBoundingVolume> children;
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NiHalfSpaceBV halfSpace;
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void read(NIFStream* nif);
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};
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/** A Node is an object that's part of the main NIF tree. It has
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parent node (unless it's the root), and transformation (location
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and rotation) relative to it's parent.
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*/
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struct Node : public Named
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{
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enum Flags
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{
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Flag_Hidden = 0x0001,
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Flag_MeshCollision = 0x0002,
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Flag_BBoxCollision = 0x0004,
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Flag_ActiveCollision = 0x0020
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};
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// Node flags. Interpretation depends somewhat on the type of node.
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unsigned int flags;
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Transformation trafo;
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osg::Vec3f velocity; // Unused? Might be a run-time game state
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PropertyList props;
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// Bounding box info
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bool hasBounds{ false };
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NiBoundingVolume bounds;
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// Collision object info
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NiCollisionObjectPtr collision;
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void read(NIFStream* nif) override;
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void post(Reader& nif) override;
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// Parent node, or nullptr for the root node. As far as I'm aware, only
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// NiNodes (or types derived from NiNodes) can be parents.
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std::vector<NiNode*> parents;
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bool isBone{ false };
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void setBone();
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bool isHidden() const { return flags & Flag_Hidden; }
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bool hasMeshCollision() const { return flags & Flag_MeshCollision; }
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bool hasBBoxCollision() const { return flags & Flag_BBoxCollision; }
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bool collisionActive() const { return flags & Flag_ActiveCollision; }
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};
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struct NiNode : Node
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{
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NodeList children;
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NodeList effects;
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enum BSAnimFlags
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{
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AnimFlag_AutoPlay = 0x0020
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};
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enum BSParticleFlags
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{
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ParticleFlag_AutoPlay = 0x0020,
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ParticleFlag_LocalSpace = 0x0080
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};
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void read(NIFStream* nif) override;
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void post(Reader& nif) override;
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};
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struct NiGeometry : Node
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{
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/* Possible flags:
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0x40 - mesh has no vertex normals ?
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Only flags included in 0x47 (ie. 0x01, 0x02, 0x04 and 0x40) have
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been observed so far.
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*/
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struct MaterialData
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{
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std::vector<std::string> names;
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std::vector<int> extra;
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unsigned int active{ 0 };
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bool needsUpdate{ false };
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void read(NIFStream* nif);
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};
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NiGeometryDataPtr data;
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NiSkinInstancePtr skin;
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MaterialData material;
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BSShaderPropertyPtr shaderprop;
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NiAlphaPropertyPtr alphaprop;
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void read(NIFStream* nif) override;
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void post(Reader& nif) override;
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};
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struct NiTriShape : NiGeometry
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{
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};
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struct BSLODTriShape : NiTriShape
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{
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unsigned int lod0, lod1, lod2;
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void read(NIFStream* nif) override;
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};
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struct NiTriStrips : NiGeometry
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{
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};
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struct NiLines : NiGeometry
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{
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};
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struct NiParticles : NiGeometry
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{
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};
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struct NiCamera : Node
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{
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struct Camera
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{
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unsigned short cameraFlags{ 0 };
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// Camera frustrum
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float left, right, top, bottom, nearDist, farDist;
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// Viewport
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float vleft, vright, vtop, vbottom;
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// Level of detail modifier
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float LOD;
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// Orthographic projection usage flag
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bool orthographic{ false };
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void read(NIFStream* nif);
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};
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Camera cam;
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void read(NIFStream* nif) override;
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};
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// A node used as the base to switch between child nodes, such as for LOD levels.
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struct NiSwitchNode : public NiNode
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{
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unsigned int switchFlags{ 0 };
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unsigned int initialIndex{ 0 };
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void read(NIFStream* nif) override;
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};
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struct NiLODNode : public NiSwitchNode
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{
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osg::Vec3f lodCenter;
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struct LODRange
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{
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float minRange;
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float maxRange;
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};
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std::vector<LODRange> lodLevels;
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void read(NIFStream* nif) override;
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};
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struct NiFltAnimationNode : public NiSwitchNode
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{
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float mDuration;
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enum Flags
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{
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Flag_Swing = 0x40
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};
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void read(NIFStream* nif) override;
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bool swing() const { return flags & Flag_Swing; }
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};
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// Abstract
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struct NiAccumulator : Record
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{
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void read(NIFStream* nif) override {}
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};
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// Node children sorters
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struct NiClusterAccumulator : NiAccumulator
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{
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};
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struct NiAlphaAccumulator : NiClusterAccumulator
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{
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};
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struct NiSortAdjustNode : NiNode
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{
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enum SortingMode
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{
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SortingMode_Inherit,
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SortingMode_Off,
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SortingMode_Subsort
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};
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int mMode;
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NiAccumulatorPtr mSubSorter;
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void read(NIFStream* nif) override;
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void post(Reader& nif) override;
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};
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struct NiBillboardNode : NiNode
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{
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int mMode{ 0 };
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void read(NIFStream* nif) override;
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};
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struct NiDefaultAVObjectPalette : Record
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{
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NodePtr mScene;
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std::unordered_map<std::string, NodePtr> mObjects;
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void read(NIFStream* nif) override;
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void post(Reader& nif) override;
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};
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} // Namespace
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#endif
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