72 lines
3.3 KiB
C
72 lines
3.3 KiB
C
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#ifndef HGL_GRAPH_CAMERA_INCLUDE
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#define HGL_GRAPH_CAMERA_INCLUDE
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#include<hgl/math/Math.h>
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namespace hgl
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{
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namespace graph
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{
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/**
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* 摄像机数据结构
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*/
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struct Camera
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{
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float width; ///<视图宽
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float height; ///<视图高
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float fov; ///<水平FOV
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float znear,zfar; ///<Z轴上离眼睛的距离
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Vector3f eye; ///<眼睛坐标
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Vector3f center; ///<视点坐标
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Vector3f up_vector; ///<向上量
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Vector3f forward_vector; ///<向前量
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};//struct Camera
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void CameraToFrustum(Frustum *,const Camera *);
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void MakeCameraMatrix(Matrix4f *proj,Matrix4f *mv,const Camera *cam);
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/**
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* 行走模拟像机
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*/
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class WalkerCamera:public Camera
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{
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public: //方法
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virtual void Backward(float=0.01); ///<向后
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virtual void Forward(float step=0.01){Backward(-step);} ///<向前
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virtual void Up(float step=0.01); ///<向上
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virtual void Down(float step=0.01){Up(-step);} ///<向下
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virtual void Right(float step=0.01); ///<向右
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virtual void Left(float step=0.01){Right(-step);} ///<向左
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public: //以自身为中心旋转
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virtual void BackwardRotate(float=5); ///<以自身为中心向后旋转
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virtual void ForwardRotate(float ang=5){BackwardRotate(-ang);} ///<以自身为中心向前旋转
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virtual void UpRotate(float=5); ///<以自身为中心向上旋转
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virtual void DownRotate(float ang=5){UpRotate(-ang);} ///<以自身为中心向下旋转
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virtual void RightRotate(float=5); ///<以自身为中心向右旋转
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virtual void LeftRotate(float ang=5){RightRotate(-ang);} ///<以自身为中心向左旋转
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public: //以目标点为中心旋转
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virtual void CenterUpRotate(float=5); ///<以目标点为中心向上旋转
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virtual void CenterDownRotate(float ang=5){CenterUpRotate(-ang);} ///<以目标点为中心向下旋转
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virtual void CenterRightRotate(float ang=5); ///<以目标点为中心向右旋转
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virtual void CenterLeftRotate(float ang=5){CenterRightRotate(-ang);} ///<以目标点为中心向左旋转
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public: //距离
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virtual void Distance(float=0.9); ///<调整距离
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};//class WalkerCamera
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}//namespace graph
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}//namespace hgl
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#endif//HGL_GRAPH_CAMERA_INCLUDE
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