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[WIP] refresh scene orient

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hyzboy
2024-08-24 03:08:14 +08:00
parent 8880df8862
commit f4e16276ff
3 changed files with 41 additions and 44 deletions
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2
CMCore

Submodule CMCore updated: 3213287b18...1fd9db0545

36
inc/hgl/graph/SceneOrient.h
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@@ -15,44 +15,36 @@ namespace hgl
{ {
protected: protected:
Vector3f Position; ///<坐标 TransformManager transform_manager;
Vector3f Direction; ///<方向
Transform LocalTransform; ///<当前变换(指相对上一级的变换) Matrix4f ParentMatrix; ///<上级矩阵
Transform WorldTransform; ///<当前到世界变换
protected: Matrix4f LocalMatrix; ///<本地到上一级矩阵
Matrix4f LocalToWorldMatrix; ///<本地到世界矩阵
Matrix4f InverseLocalToWorldMatrix; ///<世界到本地矩阵
Matrix4f InverseTransposeLocalToWorldMatrix; ///<世界到本地矩阵的转置矩阵
void SetWorldTransform (const Transform &); ///<设定当前节点到世界矩阵 virtual void SetWorldMatrix(const Matrix4f &);
public: public:
SceneOrient(); SceneOrient();
SceneOrient(const SceneOrient &); SceneOrient(const SceneOrient &);
SceneOrient(const Transform &); SceneOrient(const Matrix4f &);
virtual ~SceneOrient()=default; virtual ~SceneOrient()=default;
void SetPosition (const Vector3f &pos){Position=pos;}
void SetDirection (const Vector3f &dir){Direction=dir;}
const Vector3f & GetLocalPosition ()const {return Position;}
const Vector3f & GetLocalDirection ()const {return Direction;}
const Vector3f GetWorldPosition () {return WorldTransform.TransformPosition(Position);}
const Vector3f GetWorldDirection () {return WorldTransform.TransformDirection(Direction);}
public: public:
void SetLocalTransform (const Transform &); ///<设定当前节点矩阵 TransformManager * GetTransform (){return &transform_manager;} ///<取得变换管理器
const Transform & GetLocalTransform ()const {return LocalTransform;} ///<取得当前节点矩阵 const Matrix4f & GetLocalMatrix ()const{return LocalMatrix;}
const Transform & GetWorldTransform ()const {return WorldTransform;} ///<取得当前节点到世界矩阵 const Matrix4f & GetLocalToWorldMatrix ()const{return LocalToWorldMatrix;}
const Matrix4f & GetInverseLocalToWorldMatrix ()const{return InverseLocalToWorldMatrix;}
Transform & GetLocalTransform () {LocalTransform.UpdateMatrix();return LocalTransform;} ///<取得当前节点矩阵 const Matrix4f & GetInverseTransposeLocalToWorldMatrix ()const{return InverseTransposeLocalToWorldMatrix;}
Transform & GetWorldTransform () {WorldTransform.UpdateMatrix();return WorldTransform;} ///<取得当前节点到世界矩阵
public: public:
virtual bool RefreshTransform (const Transform &); ///<刷新到世界空间变换 virtual bool RefreshMatrix (const Matrix4f &); ///<刷新到世界空间变换
};//class SceneOrient };//class SceneOrient
}//namespace graph }//namespace graph
}//namespace hgl }//namespace hgl

47
src/SceneGraph/SceneOrient.cpp
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@@ -5,8 +5,9 @@ namespace hgl
{ {
SceneOrient::SceneOrient() SceneOrient::SceneOrient()
{ {
Position=Vector3f(0.0f); LocalMatrix=Identity4f;
Direction=Vector3f(0.0f);
SetWorldMatrix(Identity4f);
} }
SceneOrient::SceneOrient(const SceneOrient &so) SceneOrient::SceneOrient(const SceneOrient &so)
@@ -14,45 +15,49 @@ namespace hgl
hgl_cpy(*this,so); hgl_cpy(*this,so);
} }
SceneOrient::SceneOrient(const Transform &t) SceneOrient::SceneOrient(const Matrix4f &mat)
{ {
SetLocalTransform(t); SetLocalMatrix(mat);
} }
void SceneOrient::SetLocalTransform(const Transform &t) void SceneOrient::SetLocalMatrix(const Matrix4f &mat)
{ {
if(LocalTransform==t) if(IsNearlyEqual(LocalMatrix,mat))
return; return;
LocalTransform=t; LocalMatrix=mat;
} }
void SceneOrient::SetWorldTransform(const Transform &t) void SceneOrient::SetWorldMatrix(const Matrix4f &wm)
{ {
if(WorldTransform==t) LocalToWorldMatrix =wm;
return; InverseLocalToWorldMatrix =inverse(LocalToWorldMatrix);
InverseTransposeLocalToWorldMatrix =transpose(InverseLocalToWorldMatrix);
WorldTransform=t;
} }
/** /**
* 刷新世界变换 * 刷新世界变换矩阵
* @param m 上一级local to world变换 * @param parent_matrix 上一级LocalToWorld变换矩阵
*/ */
bool SceneOrient::RefreshTransform(const Transform &t) bool SceneOrient::RefreshMatrix(const Matrix4f &parent_matrix)
{ {
if(!t.IsLastVersion()) //都不是最新版本 if(hgl_cmp(ParentMatrix,parent_matrix)==0) //如果上一级到这一级没变，自然是可以用memcmp比较的
return(false); return(true);
//理论上讲，Transform在正常转const的情况下，就已经做了UpdateMatrix()的操作，这个需要测试一下 ParentMatrix=parent_matrix;
if(LocalTransform.IsIdentity()) if(IsIdentityMatrix(LocalMatrix))
{ {
SetWorldTransform(t); SetWorldMatrix(parent_matrix);
}
else
if(IsIdentityMatrix(parent_matrix))
{
SetWorldMatrix(LocalMatrix);
} }
else else
{ {
SetWorldTransform(t.TransformTransform(LocalTransform)); SetWorldMatrix(MatrixMult(parent_matrix,LocalMatrix));
} }
return(true); return(true);