MeshResourceDescriptor.h

#pragma once
 
#include <Foundation/IO/Stream.h>
#include <Foundation/Math/BoundingBoxSphere.h>
#include <RendererCore/AnimationSystem/SkeletonResource.h>
#include <RendererCore/Meshes/MeshBufferResource.h>
 
class PL_RENDERERCORE_DLL plMeshResourceDescriptor
{
public:
  struct SubMesh
  {
    PL_DECLARE_POD_TYPE();
 
    plUInt32 m_uiPrimitiveCount;
    plUInt32 m_uiFirstPrimitive;
    plUInt32 m_uiMaterialIndex;
 
    plBoundingBoxSphere m_Bounds;
  };
 
  struct Material
  {
    plString m_sPath;
  };
 
  plMeshResourceDescriptor();
 
  void Clear();
 
  plMeshBufferResourceDescriptor& MeshBufferDesc();
 
  const plMeshBufferResourceDescriptor& MeshBufferDesc() const;
 
  void UseExistingMeshBuffer(const plMeshBufferResourceHandle& hBuffer);
 
  void AddSubMesh(plUInt32 uiPrimitiveCount, plUInt32 uiFirstPrimitive, plUInt32 uiMaterialIndex);
 
  void SetMaterial(plUInt32 uiMaterialIndex, const char* szPathToMaterial);
 
  void Save(plStreamWriter& inout_stream);
  plResult Save(const char* szFile);
 
  plResult Load(plStreamReader& inout_stream);
  plResult Load(const char* szFile);
 
  const plMeshBufferResourceHandle& GetExistingMeshBuffer() const;
 
  plArrayPtr<const Material> GetMaterials() const;
 
  plArrayPtr<const SubMesh> GetSubMeshes() const;
 
  void CollapseSubMeshes();
 
  void ComputeBounds();
  const plBoundingBoxSphere& GetBounds() const;
  void SetBounds(const plBoundingBoxSphere& bounds) { m_Bounds = bounds; }
 
  struct BoneData
  {
    plMat4 m_GlobalInverseRestPoseMatrix;
    plUInt16 m_uiBoneIndex = plInvalidJointIndex;
 
    plResult Serialize(plStreamWriter& inout_stream) const;
    plResult Deserialize(plStreamReader& inout_stream);
  };
 
  plSkeletonResourceHandle m_hDefaultSkeleton;
  plHashTable<plHashedString, BoneData> m_Bones;
  float m_fMaxBoneVertexOffset = 0.0f; // the maximum distance between any vertex and its influencing bones, can be used for adjusting the bounding box of a pose
 
private:
  plHybridArray<Material, 8> m_Materials;
  plHybridArray<SubMesh, 8> m_SubMeshes;
  plMeshBufferResourceDescriptor m_MeshBufferDescriptor;
  plMeshBufferResourceHandle m_hMeshBuffer;
  plBoundingBoxSphere m_Bounds;
};