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romkazvo
230
RenderDll/Common/Shadow_Renderer.h
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230
RenderDll/Common/Shadow_Renderer.h
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#ifndef SHADOWMAP_H
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#define SHADOWMAP_H
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enum EShadowType
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{
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EST_DEPTH_BUFFER,
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EST_2D_BUFFER,
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EST_PENUMBRA
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};
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#include "IRenderer.h"
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#define SMFF_ACTIVE_SHADOW_MAP 1
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struct ShadowMapFrustum
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{
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float debugLightFrustumMatrix[16];
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float debugLightViewMatrix[16];
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unsigned int depth_tex_id;
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struct ShadowMapLightSource * pLs;
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EShadowType shadow_type;
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float FOV;
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float min_dist;
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float max_dist;
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Vec3d target;
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bool bUpdateRequested;
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int nDLightId;
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int nTexSize;
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ShadowMapFrustum * pPenumbra;
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struct IEntityRender * pOwner;
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IStatObj * pOwnerGroup;
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int nTexIdSlot;
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int nResetID;
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int dwFlags;
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float fAlpha;
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float ProjRatio;
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float fOffsetScale;
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list2<struct IStatObj*> * pModelsList;
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list2<struct IEntityRender*> * pEntityList;
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Plane arrFrusrumPlanes[4];
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float m_fCeachedFrustumScale;
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int m_nCeachedFrustumFrameId;
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float m_fBending;
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ShadowMapFrustum()
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{
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ZeroStruct(*this);
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nTexIdSlot = -1;
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fAlpha = 1.f;
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ProjRatio = 1.f;
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nDLightId = -1;
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fOffsetScale = 1.f;
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}
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~ShadowMapFrustum()
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{
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delete pModelsList;
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delete pEntityList;
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delete pPenumbra;
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}
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void UnProject(float sx, float sy, float sz, float *px, float *py, float *pz, IRenderer * pRend )
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{
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const int shadowViewport[4] = {0,0,1,1};
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pRend->UnProject(sx,sy,sz,
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px,py,pz,
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debugLightViewMatrix,
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debugLightFrustumMatrix,
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shadowViewport);
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}
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Vec3d & UnProjectVertex3d(int sx, int sy, int sz, Vec3d & vert, IRenderer * pRend)
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{
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float px;
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float py;
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float pz;
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UnProject((float)sx, (float)sy, (float)sz, &px, &py, &pz, pRend);
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vert.x=(float)px;
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vert.y=(float)py;
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vert.z=(float)pz;
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// pRend->DrawBall(vert,10);
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return vert;
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}
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void DrawFrustum(IRenderer * pRend, Vec3d vPos, float fScale)
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{
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Vec3d vert1,vert2;
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{
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pRend->Draw3dBBox(
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vPos+fScale*UnProjectVertex3d(0,0,0,vert1,pRend),
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vPos+fScale*UnProjectVertex3d(0,0,1,vert2,pRend), true);
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pRend->Draw3dBBox(
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vPos+fScale*UnProjectVertex3d(1,0,0,vert1,pRend),
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vPos+fScale*UnProjectVertex3d(1,0,1,vert2,pRend), true);
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pRend->Draw3dBBox(
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vPos+fScale*UnProjectVertex3d(1,1,0,vert1,pRend),
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vPos+fScale*UnProjectVertex3d(1,1,1,vert2,pRend), true);
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pRend->Draw3dBBox(
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vPos+fScale*UnProjectVertex3d(0,1,0,vert1,pRend),
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vPos+fScale*UnProjectVertex3d(0,1,1,vert2,pRend), true);
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}
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for(int i=0; i<=1; i++)
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{
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pRend->Draw3dBBox(
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vPos+fScale*UnProjectVertex3d(0,0,i,vert1,pRend),
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vPos+fScale*UnProjectVertex3d(1,0,i,vert2,pRend), true);
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pRend->Draw3dBBox(
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vPos+fScale*UnProjectVertex3d(1,0,i,vert1,pRend),
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vPos+fScale*UnProjectVertex3d(1,1,i,vert2,pRend), true);
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pRend->Draw3dBBox(
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vPos+fScale*UnProjectVertex3d(1,1,i,vert1,pRend),
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vPos+fScale*UnProjectVertex3d(0,1,i,vert2,pRend), true);
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pRend->Draw3dBBox(
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vPos+fScale*UnProjectVertex3d(0,1,i,vert1,pRend),
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vPos+fScale*UnProjectVertex3d(0,0,i,vert2,pRend), true);
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}
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}
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void InitFrustum(float fFrustumScale, IRenderer * pRend)
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{
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Vec3d v1,v2,v3;
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// top
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UnProjectVertex3d(0,0,0,v1,pRend),
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UnProjectVertex3d(0,0,1,v2,pRend);
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UnProjectVertex3d(1,0,1,v3,pRend);
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arrFrusrumPlanes[0].Init(v1*fFrustumScale, v2*fFrustumScale, v3*fFrustumScale);
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// left
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UnProjectVertex3d(0,1,0,v1,pRend),
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UnProjectVertex3d(0,1,1,v2,pRend);
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UnProjectVertex3d(0,0,1,v3,pRend);
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arrFrusrumPlanes[1].Init(v1*fFrustumScale, v2*fFrustumScale, v3*fFrustumScale);
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// bottom
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UnProjectVertex3d(1,1,0,v1,pRend),
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UnProjectVertex3d(1,1,1,v2,pRend);
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UnProjectVertex3d(0,1,1,v3,pRend);
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arrFrusrumPlanes[2].Init(v1*fFrustumScale, v2*fFrustumScale, v3*fFrustumScale);
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// right
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UnProjectVertex3d(1,0,0,v1,pRend),
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UnProjectVertex3d(1,0,1,v2,pRend);
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UnProjectVertex3d(1,1,1,v3,pRend);
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arrFrusrumPlanes[3].Init(v1*fFrustumScale, v2*fFrustumScale, v3*fFrustumScale);
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}
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bool IsSphereInsideFrustum(Vec3d vSphereCenter, float fSphereRadius, float fFrustumScale, IRenderer * pRend)
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{
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// todo: optimize this
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static int a=0, b=0;
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if(/*debugLightFrustumMatrix[0] && */m_fCeachedFrustumScale != fFrustumScale || m_nCeachedFrustumFrameId != pRend->GetFrameID())
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{
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InitFrustum(fFrustumScale, pRend);
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m_fCeachedFrustumScale = fFrustumScale;
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m_nCeachedFrustumFrameId = pRend->GetFrameID();
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a++;
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}
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else
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{
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b++;
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}
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float fDistance0 = arrFrusrumPlanes[0].DistFromPlane(vSphereCenter);
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float fDistance1 = arrFrusrumPlanes[1].DistFromPlane(vSphereCenter);
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float fDistance2 = arrFrusrumPlanes[2].DistFromPlane(vSphereCenter);
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float fDistance3 = arrFrusrumPlanes[3].DistFromPlane(vSphereCenter);
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bool bRes = fDistance0>-fSphereRadius && fDistance1>-fSphereRadius && fDistance2>-fSphereRadius && fDistance3>-fSphereRadius;
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/*
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#ifdef _DEBUG
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{
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InitFrustum(fFrustumScale, pRend);
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float fDistance0 = arrFrusrumPlanes[0].DistFromPlane(vSphereCenter);
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float fDistance1 = arrFrusrumPlanes[1].DistFromPlane(vSphereCenter);
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float fDistance2 = arrFrusrumPlanes[2].DistFromPlane(vSphereCenter);
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float fDistance3 = arrFrusrumPlanes[3].DistFromPlane(vSphereCenter);
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bool bResTest = fDistance0>-fSphereRadius && fDistance1>-fSphereRadius && fDistance2>-fSphereRadius && fDistance3>-fSphereRadius;
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assert(bResTest == bRes);
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}
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#endif
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*/
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return bRes;
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}
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};
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struct ShadowMapLightSource
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{
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ShadowMapLightSource(){ ZeroStruct(*this); nDLightId = -1; }
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Vec3 vSrcPos; // relative world space
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Vec3 vObjSpaceSrcPos; // objects space
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float fRadius;
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list2<ShadowMapFrustum> m_LightFrustums;
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int nDLightId;
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int SizeOf();
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ShadowMapFrustum * GetShadowMapFrustum(int nId=0)
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{
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if(nId<m_LightFrustums.Count())
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return &m_LightFrustums[nId];
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return 0;
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}
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};
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struct ShadowMapLightSourceInstance
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{
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ShadowMapLightSourceInstance() { ZeroStruct(*this); }
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ShadowMapLightSource * m_pLS;
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Vec3 m_vProjTranslation;
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float m_fProjScale;
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float m_fDistance;
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struct IEntityRender * m_pReceiver;
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bool m_bNoDepthTest;
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};
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#endif
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