miami shadows
This commit is contained in:
Fire-Head
551
src/render/ShadowCamera.cpp
Normal file
551
src/render/ShadowCamera.cpp
Normal file
@@ -0,0 +1,551 @@
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#include "common.h"
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#include "rwcore.h"
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#include "ShadowCamera.h"
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#include "RwHelper.h"
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#define TEXELOFFSET 0.5f
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RpAtomic *ShadowRenderCallBack(RpAtomic *atomic, void *data)
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{
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RpAtomicCallBackRender savedCB = RpAtomicGetRenderCallBack(atomic);
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RpAtomicSetRenderCallBack(atomic, AtomicDefaultRenderCallBack);
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RpAtomicRender(atomic);
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RpAtomicSetRenderCallBack(atomic, savedCB);
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return atomic;
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}
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CShadowCamera::CShadowCamera()
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{
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m_pCamera = NULL;
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m_pTexture = NULL;
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}
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CShadowCamera::~CShadowCamera()
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{
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Destroy();
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}
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void
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CShadowCamera::Destroy()
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{
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if ( m_pCamera )
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{
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RwRaster *raster;
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RwFrame *frame;
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frame = RwCameraGetFrame(m_pCamera);
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if ( frame )
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{
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RwCameraSetFrame(m_pCamera, NULL);
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RwFrameDestroy(frame);
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}
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raster = RwCameraGetZRaster(m_pCamera);
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if ( raster )
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{
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RwCameraSetZRaster(m_pCamera, NULL);
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RwRasterDestroy(raster);
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}
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raster = RwCameraGetRaster(m_pCamera);
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if ( raster )
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{
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RwCameraSetRaster(m_pCamera, NULL);
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RwRasterDestroy(raster);
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}
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if ( m_pTexture )
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{
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RwTextureSetRaster(m_pTexture, NULL);
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RwTextureDestroy(m_pTexture);
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m_pTexture = NULL;
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}
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RwCameraDestroy(m_pCamera);
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m_pCamera = NULL;
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}
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return;
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}
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RwCamera *
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CShadowCamera::Create(int32 rasterSize)
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{
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int32 size = 1 << rasterSize;
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m_pCamera = RwCameraCreate();
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ASSERT(m_pCamera != NULL);
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if ( m_pCamera )
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{
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RwCameraSetFrame(m_pCamera, RwFrameCreate());
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if( RwCameraGetFrame(m_pCamera) )
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{
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RwRaster *zRaster = RwRasterCreate(size, size, 0, rwRASTERTYPEZBUFFER);
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ASSERT(zRaster != NULL);
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if ( zRaster )
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{
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RwCameraSetZRaster(m_pCamera, zRaster);
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RwRaster *raster = RwRasterCreate(size, size, 0, rwRASTERTYPECAMERATEXTURE);
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ASSERT(raster != NULL);
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if ( raster )
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{
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RwCameraSetRaster(m_pCamera, raster);
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m_pTexture = RwTextureCreate(raster);
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ASSERT(m_pTexture != NULL);
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if ( m_pTexture )
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{
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RwTextureSetAddressing(m_pTexture, rwTEXTUREADDRESSCLAMP);
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RwTextureSetFilterMode(m_pTexture, rwFILTERLINEAR);
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RwCameraSetProjection(m_pCamera, rwPARALLEL);
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return (m_pCamera);
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}
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}
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}
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}
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}
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Destroy();
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return (NULL);
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}
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RwCamera *
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CShadowCamera::SetFrustum(float objectRadius)
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{
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ASSERT(m_pCamera != NULL);
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RwV2d vw;
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RwCameraSetFarClipPlane (m_pCamera, 2.0f * objectRadius);
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RwCameraSetNearClipPlane(m_pCamera, 0.001f * objectRadius);
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vw.x = objectRadius;
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vw.y = objectRadius;
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RwCameraSetViewWindow(m_pCamera, &vw);
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return m_pCamera;
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}
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RwCamera *
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CShadowCamera::SetLight(RpLight *light)
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{
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ASSERT(light != NULL);
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ASSERT(m_pCamera != NULL);
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RwFrame *camFrame = RwCameraGetFrame(m_pCamera);
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RwMatrix *camMatrix = RwFrameGetMatrix(camFrame);
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RwFrame *lightFrame = RpLightGetFrame(light);
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RwMatrix *lightMatrix = RwFrameGetMatrix(lightFrame);
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*RwMatrixGetRight(camMatrix) = *RwMatrixGetRight(lightMatrix);
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*RwMatrixGetUp(camMatrix) = *RwMatrixGetUp(lightMatrix);
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*RwMatrixGetAt(camMatrix) = *RwMatrixGetAt(lightMatrix);
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//RwMatrixCopy(RwFrameGetMatrix(camFrame), RwFrameGetMatrix(lightFrame));
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RwMatrixUpdate(RwFrameGetMatrix(camFrame));
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RwFrameUpdateObjects(camFrame);
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return m_pCamera;
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}
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RwCamera *
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CShadowCamera::SetCenter(RwV3d *center)
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{
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ASSERT(center != NULL);
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ASSERT(m_pCamera != NULL);
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RwFrame *camFrame = RwCameraGetFrame(m_pCamera);
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RwMatrix *camMatrix = RwFrameGetMatrix(camFrame);
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*RwMatrixGetPos(camMatrix) = *center;
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RwV3dIncrementScaled(RwMatrixGetPos(camMatrix), RwMatrixGetAt(camMatrix), -0.5f * RwCameraGetFarClipPlane(m_pCamera));
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RwMatrixUpdate(camMatrix);
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RwFrameUpdateObjects(camFrame);
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RwFrameOrthoNormalize(camFrame);
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return m_pCamera;
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}
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RwCamera *
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CShadowCamera::Update(RpClump *clump)
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{
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ASSERT(clump != NULL);
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ASSERT(m_pCamera != NULL);
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RwUInt32 flags;
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RpGeometry *geometry;
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RwRGBA bgColor = { 255, 255, 255, 0 };
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RwCameraClear(m_pCamera, &bgColor, rwCAMERACLEARZ | rwCAMERACLEARIMAGE);
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if ( RwCameraBeginUpdate(m_pCamera) )
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{
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geometry = GetFirstAtomic(clump)->geometry;
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ASSERT(geometry != NULL);
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flags = RpGeometryGetFlags(geometry);
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RpGeometrySetFlags(geometry, flags & ~(rpGEOMETRYPRELIT|rpGEOMETRYLIGHT
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|rpGEOMETRYTEXTURED|rpGEOMETRYTEXTURED2|rpGEOMETRYMODULATEMATERIALCOLOR));
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RpClumpForAllAtomics(clump, ShadowRenderCallBack, NULL);
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RpGeometrySetFlags(geometry, flags);
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InvertRaster();
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RwCameraEndUpdate(m_pCamera);
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}
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return m_pCamera;
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}
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RwCamera *
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CShadowCamera::Update(RpAtomic *atomic)
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{
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ASSERT(atomic != NULL);
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ASSERT(m_pCamera != NULL);
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RwUInt32 flags;
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RpGeometry *geometry;
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RwRGBA bgColor = { 255, 255, 255, 0 };
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RwCameraClear(m_pCamera, &bgColor, rwCAMERACLEARZ | rwCAMERACLEARIMAGE);
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if ( RwCameraBeginUpdate(m_pCamera) )
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{
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geometry = RpAtomicGetGeometry(atomic);
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ASSERT(geometry != NULL);
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flags = RpGeometryGetFlags(geometry);
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RpGeometrySetFlags(geometry, flags & ~(rpGEOMETRYPRELIT|rpGEOMETRYLIGHT
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|rpGEOMETRYTEXTURED|rpGEOMETRYTEXTURED2|rpGEOMETRYMODULATEMATERIALCOLOR|rpGEOMETRYNORMALS));
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ShadowRenderCallBack(atomic, NULL);
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RpGeometrySetFlags(geometry, flags);
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InvertRaster();
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RwCameraEndUpdate(m_pCamera);
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}
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return m_pCamera;
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}
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void
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CShadowCamera::InvertRaster()
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{
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ASSERT(m_pCamera != NULL);
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RwIm2DVertex vx[4];
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float crw, crh;
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RwRaster *raster;
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float recipZ;
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raster = RwCameraGetRaster(m_pCamera);
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ASSERT(raster != NULL);
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crw = (float)RwRasterGetWidth(raster);
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crh = (float)RwRasterGetHeight(raster);
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recipZ = 1.0f / RwCameraGetNearClipPlane(m_pCamera);
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RwIm2DVertexSetScreenX (&vx[0], 0.0f);
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RwIm2DVertexSetScreenY (&vx[0], 0.0f);
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RwIm2DVertexSetScreenZ (&vx[0], RwIm2DGetNearScreenZ());
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RwIm2DVertexSetRecipCameraZ(&vx[0], recipZ);
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RwIm2DVertexSetIntRGBA (&vx[0], 255, 255, 255, 255);
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RwIm2DVertexSetScreenX (&vx[1], 0.0f);
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RwIm2DVertexSetScreenY (&vx[1], crh);
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RwIm2DVertexSetScreenZ (&vx[1], RwIm2DGetNearScreenZ());
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RwIm2DVertexSetRecipCameraZ(&vx[1], recipZ);
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RwIm2DVertexSetIntRGBA (&vx[1], 255, 255, 255, 255);
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RwIm2DVertexSetScreenX (&vx[2], crw);
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RwIm2DVertexSetScreenY (&vx[2], 0.0f);
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RwIm2DVertexSetScreenZ (&vx[2], RwIm2DGetNearScreenZ());
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RwIm2DVertexSetRecipCameraZ(&vx[2], recipZ);
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RwIm2DVertexSetIntRGBA (&vx[2], 255, 255, 255, 255);
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RwIm2DVertexSetScreenX (&vx[3], crw);
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RwIm2DVertexSetScreenY (&vx[3], crh);
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RwIm2DVertexSetScreenZ (&vx[3], RwIm2DGetNearScreenZ());
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RwIm2DVertexSetRecipCameraZ(&vx[3], recipZ);
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RwIm2DVertexSetIntRGBA (&vx[3], 255, 255, 255, 255);
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RwRenderStateSet(rwRENDERSTATEZTESTENABLE, (void *)FALSE);
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RwRenderStateSet(rwRENDERSTATETEXTURERASTER, (void *)NULL);
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RwRenderStateSet(rwRENDERSTATEVERTEXALPHAENABLE, (void *)TRUE);
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RwRenderStateSet(rwRENDERSTATESRCBLEND, (void *)rwBLENDINVDESTCOLOR);
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RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void *)rwBLENDZERO);
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RwIm2DRenderPrimitive(rwPRIMTYPETRISTRIP, vx, 4);
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RwRenderStateSet(rwRENDERSTATEZTESTENABLE, (void *)TRUE);
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RwRenderStateSet(rwRENDERSTATESRCBLEND, (void *)rwBLENDSRCALPHA);
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RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void *)rwBLENDINVSRCALPHA);
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}
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RwRaster *
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CShadowCamera::MakeGradientRaster()
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{
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ASSERT(m_pCamera != NULL);
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RwIm2DVertex vx[2];
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if ( !m_pCamera )
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return NULL;
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float recipCamZ = 1.0f / RwCameraGetNearClipPlane(m_pCamera);
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RwRaster *raster = RwCameraGetRaster(m_pCamera);
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ASSERT(raster != NULL);
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float width = (float)RwRasterGetWidth(raster);
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float height = (float)RwRasterGetHeight(raster);
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if ( height < 1 )
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return NULL;
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if ( RwCameraBeginUpdate(m_pCamera) )
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{
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RwRenderStateSet(rwRENDERSTATETEXTURERASTER, (void *)rwFILTERNAFILTERMODE);
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RwRenderStateSet(rwRENDERSTATEZTESTENABLE, (void *)FALSE);
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RwRenderStateSet(rwRENDERSTATEVERTEXALPHAENABLE, (void *)FALSE);
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RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void *)rwBLENDZERO);
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RwRenderStateSet(rwRENDERSTATESRCBLEND, (void *)rwBLENDINVDESTCOLOR);
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RwRenderStateSet(rwRENDERSTATESHADEMODE, (void *)rwSHADEMODEFLAT);
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float color = 255.0f;
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float step = (-191.0f / height);
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for ( int32 i = 0; i < height; i++ )
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{
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RwIm2DVertexSetScreenX (&vx[0], 0.0f);
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RwIm2DVertexSetScreenY (&vx[0], i);
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RwIm2DVertexSetScreenZ (&vx[0], RwIm2DGetNearScreenZ());
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RwIm2DVertexSetRecipCameraZ(&vx[0], recipCamZ);
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RwIm2DVertexSetIntRGBA (&vx[0], (uint32)color, (uint32)color, (uint32)color, (uint32)color);
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RwIm2DVertexSetScreenX (&vx[1], width - 1);
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RwIm2DVertexSetScreenY (&vx[1], i);
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RwIm2DVertexSetScreenZ (&vx[1], RwIm2DGetNearScreenZ());
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RwIm2DVertexSetRecipCameraZ(&vx[1], recipCamZ);
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RwIm2DVertexSetIntRGBA (&vx[1], (uint32)color, (uint32)color, (uint32)color, (uint32)color);
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RwIm2DRenderLine(vx, 2, 0, 1);
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color += step;
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}
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RwRenderStateSet(rwRENDERSTATEZTESTENABLE, (void *)TRUE);
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RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void *)rwBLENDINVSRCALPHA);
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RwRenderStateSet(rwRENDERSTATESRCBLEND, (void *)rwBLENDSRCALPHA);
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RwRenderStateSet(rwRENDERSTATESHADEMODE, (void *)rwSHADEMODEGOURAUD);
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RwCameraEndUpdate(m_pCamera);
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}
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return raster;
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}
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RwRaster *
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CShadowCamera::RasterResample(RwRaster *dstRaster)
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{
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ASSERT(dstRaster != NULL);
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ASSERT(m_pCamera != NULL);
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if ( !m_pCamera )
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return NULL;
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RwRaster *raster = RwCameraGetRaster(m_pCamera);
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ASSERT(raster != NULL);
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float size = (float) RwRasterGetWidth(raster);
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float uvOffset = TEXELOFFSET / size;
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float recipCamZ = 1.0f / RwCameraGetNearClipPlane(m_pCamera);
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if ( RwCameraBeginUpdate(m_pCamera) )
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{
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RwRenderStateSet(rwRENDERSTATESRCBLEND, (void *)rwBLENDONE);
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RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void *)rwBLENDZERO);
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RwRenderStateSet(rwRENDERSTATEZTESTENABLE, (void *)FALSE);
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RwRenderStateSet(rwRENDERSTATETEXTUREFILTER, (void *)rwFILTERLINEAR);
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RwRenderStateSet(rwRENDERSTATETEXTURERASTER, (void *)dstRaster);
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Im2DRenderQuad(0.0f, 0.0f, size, size, RwIm2DGetNearScreenZ(), recipCamZ, uvOffset);
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RwRenderStateSet(rwRENDERSTATEZTESTENABLE, (void *)TRUE);
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RwRenderStateSet(rwRENDERSTATESRCBLEND, (void *)rwBLENDSRCALPHA);
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RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void *)rwBLENDINVSRCALPHA);
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RwCameraEndUpdate(m_pCamera);
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}
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return raster;
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}
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RwRaster *
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CShadowCamera::RasterBlur(RwRaster *dstRaster, int32 numPasses)
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{
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ASSERT(dstRaster != NULL);
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ASSERT(m_pCamera != NULL);
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if ( !m_pCamera )
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return NULL;
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RwRaster *raster = RwCameraGetRaster(m_pCamera);
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ASSERT(raster != NULL);
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float size = (float) RwRasterGetWidth(dstRaster);
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float recipCamZ = 1.0f / RwCameraGetNearClipPlane(m_pCamera);
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for (int i = 0; i < numPasses; i++ )
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{
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RwCameraSetRaster(m_pCamera, raster);
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if ( RwCameraBeginUpdate(m_pCamera) )
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{
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if ( i == 0 )
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{
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RwRenderStateSet(rwRENDERSTATESRCBLEND, (void *)rwBLENDONE);
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RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void *)rwBLENDZERO);
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RwRenderStateSet(rwRENDERSTATEZTESTENABLE, (void *)FALSE);
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RwRenderStateSet(rwRENDERSTATETEXTUREFILTER, (void *)rwFILTERLINEAR);
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}
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RwRenderStateSet(rwRENDERSTATETEXTURERASTER, (void *)dstRaster);
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Im2DRenderQuad(0.0f, 0.0f, size, size, RwIm2DGetNearScreenZ(), recipCamZ, 1.0f / size);
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RwCameraEndUpdate(m_pCamera);
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}
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RwCameraSetRaster(m_pCamera, dstRaster);
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if ( RwCameraBeginUpdate(m_pCamera) )
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{
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RwRenderStateSet(rwRENDERSTATETEXTURERASTER, (void *)raster);
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Im2DRenderQuad(0.0f, 0.0f, size, size, RwIm2DGetNearScreenZ(), recipCamZ, 0);
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if ( i == numPasses - 1 )
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{
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RwRenderStateSet(rwRENDERSTATEZTESTENABLE, (void *)TRUE);
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RwRenderStateSet(rwRENDERSTATESRCBLEND, (void *)rwBLENDSRCALPHA);
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RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void *)rwBLENDINVSRCALPHA);
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}
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RwCameraEndUpdate(m_pCamera);
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}
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}
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RwCameraSetRaster(m_pCamera, raster);
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return dstRaster;
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}
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RwRaster *
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CShadowCamera::RasterGradient(RwRaster *dstRaster)
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{
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ASSERT(dstRaster != NULL);
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ASSERT(m_pCamera != NULL);
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||||
RwRaster *raster = RwCameraGetRaster(m_pCamera);
|
||||
ASSERT(raster != NULL);
|
||||
|
||||
float size = (float)RwRasterGetWidth(dstRaster);
|
||||
float recipCamZ = 1.0f / RwCameraGetNearClipPlane(m_pCamera);
|
||||
|
||||
RwCameraSetRaster(m_pCamera, dstRaster);
|
||||
|
||||
if ( RwCameraBeginUpdate(m_pCamera) )
|
||||
{
|
||||
RwRenderStateSet(rwRENDERSTATESRCBLEND, (void *)rwBLENDZERO);
|
||||
RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void *)rwBLENDSRCCOLOR);
|
||||
RwRenderStateSet(rwRENDERSTATEZTESTENABLE, (void *)FALSE);
|
||||
RwRenderStateSet(rwRENDERSTATETEXTUREFILTER, (void *)rwFILTERLINEAR);
|
||||
RwRenderStateSet(rwRENDERSTATETEXTURERASTER, (void *)raster);
|
||||
|
||||
Im2DRenderQuad(0, 0, size, size, RwIm2DGetNearScreenZ(), recipCamZ, 0);
|
||||
|
||||
RwRenderStateSet(rwRENDERSTATEZTESTENABLE, (void *)TRUE);
|
||||
RwRenderStateSet(rwRENDERSTATESRCBLEND, (void *)rwBLENDSRCALPHA);
|
||||
RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void *)rwBLENDINVSRCALPHA);
|
||||
|
||||
RwCameraEndUpdate(m_pCamera);
|
||||
}
|
||||
|
||||
RwCameraSetRaster(m_pCamera, raster);
|
||||
|
||||
return dstRaster;
|
||||
}
|
||||
|
||||
RwRaster *CShadowCamera::DrawOutlineBorder(RwRGBA const& color)
|
||||
{
|
||||
ASSERT(m_pCamera != NULL);
|
||||
|
||||
RwIm2DVertex vx[4];
|
||||
RwImVertexIndex ix[5];
|
||||
|
||||
RwRaster *raster = RwCameraGetRaster(m_pCamera);
|
||||
ASSERT(raster != NULL);
|
||||
|
||||
float size = (float)RwRasterGetWidth(raster) - 1.0f;
|
||||
float recipCamZ = 1.0f / RwCameraGetNearClipPlane(m_pCamera);
|
||||
|
||||
RwIm2DVertexSetScreenX (&vx[0], 0.0f);
|
||||
RwIm2DVertexSetScreenY (&vx[0], 0.0f);
|
||||
RwIm2DVertexSetScreenZ (&vx[0], RwIm2DGetNearScreenZ());
|
||||
RwIm2DVertexSetIntRGBA (&vx[0], color.red, color.green, color.blue, color.alpha);
|
||||
RwIm2DVertexSetRecipCameraZ(&vx[0], recipCamZ);
|
||||
|
||||
RwIm2DVertexSetScreenX (&vx[1], size);
|
||||
RwIm2DVertexSetScreenY (&vx[1], 0.0f);
|
||||
RwIm2DVertexSetScreenZ (&vx[1], RwIm2DGetNearScreenZ());
|
||||
RwIm2DVertexSetIntRGBA (&vx[1], color.red, color.green, color.blue, color.alpha);
|
||||
RwIm2DVertexSetRecipCameraZ(&vx[1], recipCamZ);
|
||||
|
||||
RwIm2DVertexSetScreenX (&vx[2], size);
|
||||
RwIm2DVertexSetScreenY (&vx[2], size);
|
||||
RwIm2DVertexSetScreenZ (&vx[2], RwIm2DGetNearScreenZ());
|
||||
RwIm2DVertexSetIntRGBA (&vx[2], color.red, color.green, color.blue, color.alpha);
|
||||
RwIm2DVertexSetRecipCameraZ(&vx[2], recipCamZ);
|
||||
|
||||
RwIm2DVertexSetScreenX (&vx[3], 0.0f);
|
||||
RwIm2DVertexSetScreenY (&vx[3], size);
|
||||
RwIm2DVertexSetScreenZ (&vx[3], RwIm2DGetNearScreenZ());
|
||||
RwIm2DVertexSetIntRGBA (&vx[3], color.red, color.green, color.blue, color.alpha);
|
||||
RwIm2DVertexSetRecipCameraZ(&vx[3], recipCamZ);
|
||||
|
||||
ix[0] = 0;
|
||||
ix[4] = 0;
|
||||
ix[1] = 1;
|
||||
ix[2] = 2;
|
||||
ix[3] = 3;
|
||||
|
||||
if ( RwCameraBeginUpdate(m_pCamera) )
|
||||
{
|
||||
RwRenderStateSet(rwRENDERSTATEZTESTENABLE, (void *)FALSE);
|
||||
RwRenderStateSet(rwRENDERSTATEVERTEXALPHAENABLE, (void *)FALSE);
|
||||
RwRenderStateSet(rwRENDERSTATETEXTURERASTER, (void *)NULL);
|
||||
|
||||
RwIm2DRenderIndexedPrimitive(rwPRIMTYPEPOLYLINE, vx, 4, ix, 5);
|
||||
|
||||
RwRenderStateSet(rwRENDERSTATEZTESTENABLE, (void *)TRUE);
|
||||
RwRenderStateSet(rwRENDERSTATEVERTEXALPHAENABLE, (void *)TRUE);
|
||||
|
||||
RwCameraEndUpdate(m_pCamera);
|
||||
}
|
||||
|
||||
return raster;
|
||||
}
|
||||
Reference in New Issue
Block a user