85 lines
2.2 KiB
C++
85 lines
2.2 KiB
C++
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#include<hgl/graph/Camera.h>
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#include<hgl/graph/SceneNode.h>
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#include<hgl/graph/Renderable.h>
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#include<hgl/graph/VertexBuffer.h>
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#include<hgl/graph/Render.h>
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//#include<hgl/graph/Frustum.h>
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#include<hgl/algorithm/VectorMath.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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/* float CameraLengthComp(Camera *cam,SceneNode *obj_one,SceneNode *obj_two)
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{
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if(!cam||!obj_one||!obj_two)
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return(0);
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return( length_squared(obj_one->GetCenter(),cam->eye)-
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length_squared(obj_two->GetCenter(),cam->eye));
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}
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bool FrustumClipFilter(const SceneNode *node,void *fc)
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{
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if(!node||!fc)return(false);
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return (((Frustum *)fc)->BoxIn(node->GetWorldBoundingBox())!=Frustum::OUTSIDE);
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}*/
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/**
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* 使用指定矩阵渲染一个渲染列表
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* @param rl 渲染列表
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* @param proj 透视矩阵
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* @param mv 视图矩阵
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* @return 是否渲染成功
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*/
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bool Render(const RenderList *rl,const Matrix4f *proj,const Matrix4f *mv)
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{
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if(!rl)
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return(false);
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int count=rl->GetCount();
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const SceneNode **node=rl->GetData();
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for(int i=0;i<count;i++)
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{
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const Matrix4f fin_mv=(*mv)*(*node)->GetLocalToWorldMatrix();
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int sn=(*node)->SubData.GetCount();
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Renderable **p=(*node)->SubData.GetData();
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for(int j=0;j<sn;j++)
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{
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DirectRender( (*p),
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proj,
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&fin_mv);
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p++;
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}
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node++;
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}
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return(true);
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}
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/**
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* 渲染一个渲染列表
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* @param rl 渲染列表
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* @param cam 摄像机
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* @return 是否渲染成功
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*/
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bool Render(const RenderList *rl,const Camera *cam)
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{
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if(!rl||!cam)return(false);
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Matrix4f proj,mv;
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MakeCameraMatrix(&proj,&mv,cam);
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return Render(rl,&proj,&mv);
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}
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}//namespace graph
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}//namespace hgl
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