filtre de Blooming

**Kurisu** · 07/06/2007, 12h10

Je cherche à faire un filtre de blooming sous GX (l'OpenGL de la Wii) et je cherche un bon algorithme ne nécessitant pas trop d'écritures/lectures du framebuffer (EFB) et utilisant intelligemment les GX_TEXCOORDs et les GX_TEVSTAGEs.

Un implémentation en OpenGL m'avancerait déjà aussi bien, ainsi qu'une explication (ou des liens vers des explications) du principe d'un blooming.
Grand merci d'avance.

**alt3** · 07/06/2007, 13h39

T'as regardé chez developer.nvidia.com ?
Il me semble qu'il y a des trucs à ce propos là bas.

**Kurisu** · 12/06/2007, 23h34

J'ai trouvé un très bon tutorial pour OpenGL: http://www.prideout.net/bloom/
Je pense qu'il doit y avoir peu de monde à développer sur Revolution (Wii) ici, mais bon... donner des liens n'aurait pas fait de mal.
Enfin bon, j'ai un code simpliste qui fonctionne et je vais peut-être le poster ici demain. Ca pourra sûrement reservir.

**Kurisu** · 13/06/2007, 11h21

Voici donc le code simpliste expoite le blur linéare qu'on obtient en agrandissant une texture auparavant reduite.

L'avantage de cette version est qu'elle n'utilise que 2 passes, ce qui fonctionne assez bien avec la bande passante (vers la mémoire) réduite de la Wii.
(J'ai juste mis le code principal parce que le reste est trivial.)

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

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		GXSetVerifyLevel(GX_WARN_SEVERE);
 
		//screen size
		GXRenderModeObj* pRenderMode = G3D::G3DState::GetRenderModeObj();
 
		//screen setup
		//TODO: set screen projection matrix as ortho, with 1.0 = 1 px
		COrthoViewport	viewport(	0, 0, pRenderMode->fbWidth, pRenderMode->efbHeight,
									0, 0, pRenderMode->fbWidth, pRenderMode->efbHeight);	//pRenderMode->efbHeight,pRenderMode->fbWidth
		viewport.Setup();
 
		//////////////////////////////////////////////////////////////////////////
		//begin pass 1
		GXFlush();
		GXPixModeSync();
		//	GXInvalidateTexRegion();
 
		//capture EFB
		g_FramebufferAccessor.CaptureFramebuffer(&efbFull, GX_FALSE); //GX_TRUE
 
 
 
		//texture
		GXInvalidateTexAll();
		GXLoadTexObj(&efbFull.efbTex, GX_TEXMAP0);
 
		//lighting off
		GXSetNumChans(0);
		GXSetChanCtrl(GX_COLOR0A0, GX_DISABLE, GX_SRC_REG, GX_SRC_REG, 0, GX_DF_NONE, GX_AF_NONE);
		GXSetChanCtrl(GX_COLOR1A1, GX_DISABLE, GX_SRC_REG, GX_SRC_REG, 0, GX_DF_NONE, GX_AF_NONE);
 
		//tex coords
		GXSetNumTexGens(1);	
		GXSetTexCoordGen(GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, GX_IDENTITY);
 
		//tev kcolor		
		GXSetTevKColor(GX_KCOLOR0, m_cThreshold);
		GXSetTevKColorSel(GX_TEVSTAGE0, GX_TEV_KCSEL_K0);		
 
		//tev stages //(D {+,-} ( (1-C)*A + C*B ) + X) * S
		GXSetNumTevStages(1);
 
		//1st stage: clamp(tex - threshold, 0, 255)
		//R: d[R] + ((a[R] > b[R]) ? c[R] :0 );
		//G: d[G] + ((a[G] > b[G]) ? c[G] :0 );
		//B: d[B] + ((a[B] > b[B]) ? c[B] :0 );
		GXSetTevOrder( GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR_NULL );
 
		//GXSetTevColorIn(GX_TEVSTAGE0, GX_CC_ZERO, GX_CC_KONST, GX_CC_ONE, GX_CC_TEXC);
		//GXSetTevColorOp(GX_TEVSTAGE0, GX_TEV_SUB, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevColorIn(GX_TEVSTAGE0, GX_CC_TEXC, GX_CC_KONST, GX_CC_TEXC, GX_CC_ZERO);
		GXSetTevColorOp(GX_TEVSTAGE0, GX_TEV_COMP_RGB8_GT, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE0, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_KONST);
		GXSetTevAlphaOp(GX_TEVSTAGE0, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
 
 
		//pixel logic	
		GXSetZMode( GX_TRUE, GX_ALWAYS, GX_TRUE );	
		GXSetZCompLoc( GX_DISABLE );    
		GXSetBlendMode(GX_BM_NONE, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_COPY);
 
		//display on 4 quads
		SetupQuadVertexDesc(1);
		DrawQuad(viewport, s_rRedux1);
		DrawQuad(viewport, s_rRedux2);
		DrawQuad(viewport, s_rRedux3);
		DrawQuad(viewport, s_rRedux4);
 
		//done 1st pass
		GXFlush();
		GXPixModeSync();		
 
		//////////////////////////////////////////////////////////////////////////
		//2nd pass
 
		//capture EFB
		g_FramebufferAccessor.CaptureFramebuffer(&efbRedux1, GX_FALSE);//GX_TRUE
		g_FramebufferAccessor.CaptureFramebuffer(&efbRedux2, GX_FALSE);//GX_TRUE
		g_FramebufferAccessor.CaptureFramebuffer(&efbRedux3, GX_FALSE); //GX_TRUE
		g_FramebufferAccessor.CaptureFramebuffer(&efbRedux4, GX_FALSE); //GX_TRUE
 
 
		//texture
		//	GXInvalidateTexAll();
		GXLoadTexObj(&efbFull.efbTex, GX_TEXMAP0);
		GXLoadTexObj(&efbRedux1.efbTex, GX_TEXMAP1);
		GXLoadTexObj(&efbRedux2.efbTex, GX_TEXMAP2);
		GXLoadTexObj(&efbRedux3.efbTex, GX_TEXMAP3);
		GXLoadTexObj(&efbRedux4.efbTex, GX_TEXMAP4);
 
		//lighting off
		GXSetNumChans(0);
		GXSetChanCtrl(GX_COLOR0A0, GX_DISABLE, GX_SRC_REG, GX_SRC_REG, 0, GX_DF_NONE, GX_AF_NONE);
		GXSetChanCtrl(GX_COLOR1A1, GX_DISABLE, GX_SRC_REG, GX_SRC_REG, 0, GX_DF_NONE, GX_AF_NONE);
 
		//tex coords
		GXSetNumTexGens(5);	
		GXSetTexCoordGen(GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, GX_IDENTITY);
		GXSetTexCoordGen(GX_TEXCOORD1, GX_TG_MTX2x4, GX_TG_TEX1, GX_IDENTITY);
		GXSetTexCoordGen(GX_TEXCOORD2, GX_TG_MTX2x4, GX_TG_TEX2, GX_IDENTITY);
		GXSetTexCoordGen(GX_TEXCOORD3, GX_TG_MTX2x4, GX_TG_TEX3, GX_IDENTITY);
		GXSetTexCoordGen(GX_TEXCOORD4, GX_TG_MTX2x4, GX_TG_TEX4, GX_IDENTITY);
 
		//tev stages //(D {+,-} ( (1-C)*A + C*B ) + X) * S
		GXSetNumTevStages(5);
 
		//tev kcolor		
		u8 uConstAlpha = 255;
		m_cFactorRedux1.a = uConstAlpha;
 
		GXSetTevKColor(GX_KCOLOR0, m_cFactorRedux1);
		GXSetTevKColor(GX_KCOLOR1, m_cFactorRedux2);
		GXSetTevKColor(GX_KCOLOR2, m_cFactorRedux3);
		GXSetTevKColor(GX_KCOLOR3, m_cFactorRedux4);		
 
		GXSetTevKAlphaSel(GX_TEVSTAGE0, GX_TEV_KASEL_1);
		GXSetTevKColorSel(GX_TEVSTAGE1, GX_TEV_KCSEL_K0);
		GXSetTevKColorSel(GX_TEVSTAGE2, GX_TEV_KCSEL_K1);
		GXSetTevKColorSel(GX_TEVSTAGE3, GX_TEV_KCSEL_K2);
		GXSetTevKColorSel(GX_TEVSTAGE4, GX_TEV_KCSEL_K3);
 
		//1st stage: tex0 passthrough
		GXSetTevOrder( GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR_NULL );
 
		//GXSetTevColorIn(GX_TEVSTAGE0, GX_CC_ZERO, GX_CC_TEXC, GX_CC_RASC, GX_CC_ZERO);
		GXSetTevColorIn(GX_TEVSTAGE0, GX_CC_ZERO, GX_CC_ZERO, GX_CC_RASC, GX_CC_TEXC);
		GXSetTevColorOp(GX_TEVSTAGE0, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
		//GXSetTevAlphaIn(GX_TEVSTAGE0, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_RASA);
		GXSetTevAlphaIn(GX_TEVSTAGE0, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_KONST);
		GXSetTevAlphaOp(GX_TEVSTAGE0, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//2nd stage: stage0 + tex1 (might need clamping)
		GXSetTevOrder( GX_TEVSTAGE1, GX_TEXCOORD1, GX_TEXMAP1, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE1, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE1, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
		GXSetTevAlphaIn(GX_TEVSTAGE1, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_APREV);
		GXSetTevAlphaOp(GX_TEVSTAGE1, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//3rd stage: stage1 + tex2 (might need clamping)
		GXSetTevOrder( GX_TEVSTAGE2, GX_TEXCOORD2, GX_TEXMAP2, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE2, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE2, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
		GXSetTevAlphaIn(GX_TEVSTAGE2, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_APREV);
		GXSetTevAlphaOp(GX_TEVSTAGE2, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//4th stage: stage2 + tex3 (might need clamping)
		GXSetTevOrder( GX_TEVSTAGE3, GX_TEXCOORD3, GX_TEXMAP3, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE3, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE3, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
		GXSetTevAlphaIn(GX_TEVSTAGE3, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_APREV);
		GXSetTevAlphaOp(GX_TEVSTAGE3, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//5th stage: stage3 + tex4 (might need clamping)
		GXSetTevOrder( GX_TEVSTAGE4, GX_TEXCOORD4, GX_TEXMAP4, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE4, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE4, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
		GXSetTevAlphaIn(GX_TEVSTAGE4, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_APREV);
		GXSetTevAlphaOp(GX_TEVSTAGE4, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//display on 1 quad
		SetupQuadVertexDesc(5, true);
		//DrawQuad(viewport, 200, 200, 400, 300, 5);	//0, 0, pRenderMode->fbWidth, pRenderMode->efbHeight
		DrawQuad(viewport, 0, 0, pRenderMode->fbWidth, pRenderMode->efbHeight, 5, m_cFactorFull);//
 
		//done 2nd pass
		GXFlush();
 
		GXSetVerifyLevel(GX_WARN_NONE);
		//restore screen setup
		//todo: restore projection matrices to previous settings
		viewport.Restore();

**Kurisu** · 13/06/2007, 11h46

(Mon edit du post précédent n'a pas fonctionné, donc...)

Le bout de code suivant utilise un filtre gaussien pour créer un blur et utilise 3 passes, dont 2 avec copie du framebuffer plein-écran. Manque de bol, le hardware est vraiment le facteur limitant ici, parce que mon framerate vient de se diviser par 2.

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

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		GXSetVerifyLevel(GX_WARN_SEVERE);
 
		//screen size
		GXRenderModeObj* pRenderMode = G3D::G3DState::GetRenderModeObj();
 
		//screen setup
		//TODO: set screen projection matrix as ortho, with 1.0 = 1 px
		COrthoViewport	viewport(	0, 0, pRenderMode->fbWidth, pRenderMode->efbHeight,
									0, 0, pRenderMode->fbWidth, pRenderMode->efbHeight);	//pRenderMode->efbHeight,pRenderMode->fbWidth
		viewport.Setup();
 
		//////////////////////////////////////////////////////////////////////////
		//begin pass 1
		GXFlush();
		GXPixModeSync();
		//	GXInvalidateTexRegion();
 
		//capture EFB
		g_FramebufferAccessor.CaptureFramebuffer(&efbFull, GX_FALSE); //GX_TRUE
 
 
 
		//texture
		GXInvalidateTexAll();
		GXLoadTexObj(&efbFull.efbTex, GX_TEXMAP0);
 
		//lighting off
		GXSetNumChans(0);
		GXSetChanCtrl(GX_COLOR0A0, GX_DISABLE, GX_SRC_REG, GX_SRC_REG, 0, GX_DF_NONE, GX_AF_NONE);
		GXSetChanCtrl(GX_COLOR1A1, GX_DISABLE, GX_SRC_REG, GX_SRC_REG, 0, GX_DF_NONE, GX_AF_NONE);
 
		//tex coords
		f32 fPixDecalX = 1.0 / G3D::G3DState::GetRenderModeObj()->fbWidth;
			//f32 fPixDecalY = 1.0 / G3D::G3DState::GetRenderModeObj()->efbHeight;
		//todo: generate texcoords accoordingly & correctly
		GXSetNumTexGens(7);	
		GXSetTexCoordGen(GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, GX_IDENTITY);	//moved about 0px  in X
 
		Mtx m1, m2, m3, m4, m5, m6;
 
		MTXIdentity(m1);
		MTXRowCol(m1, 0, 3) = -3 * fPixDecalX;
		MTXIdentity(m2);
		MTXRowCol(m1, 0, 3) = -2 * fPixDecalX;
		MTXIdentity(m3);
		MTXRowCol(m2, 0, 3) = -1 * fPixDecalX;
		MTXIdentity(m3);
		MTXRowCol(m3, 0, 3) = +3 * fPixDecalX;
		MTXIdentity(m4);
		MTXRowCol(m3, 0, 3) = +3 * fPixDecalX;
		MTXIdentity(m5);
		MTXRowCol(m3, 0, 3) = +2 * fPixDecalX;
		MTXIdentity(m6);
		MTXRowCol(m3, 0, 3) = +1 * fPixDecalX;
 
		GXLoadTexMtxImm(m1, GX_TEXMTX1, GX_MTX2x4);
		GXLoadTexMtxImm(m2, GX_TEXMTX2, GX_MTX2x4);
		GXLoadTexMtxImm(m3, GX_TEXMTX3, GX_MTX2x4);
		GXLoadTexMtxImm(m4, GX_TEXMTX4, GX_MTX2x4);
		GXLoadTexMtxImm(m5, GX_TEXMTX5, GX_MTX2x4);
		GXLoadTexMtxImm(m6, GX_TEXMTX6, GX_MTX2x4);
 
		GXSetTexCoordGen(GX_TEXCOORD1, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX1);	//moved about -3px in X
		GXSetTexCoordGen(GX_TEXCOORD2, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX2);	//moved about -2px in X
		GXSetTexCoordGen(GX_TEXCOORD3, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX3);	//moved about -1px in X
		GXSetTexCoordGen(GX_TEXCOORD4, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX4);	//moved about +3px in X
		GXSetTexCoordGen(GX_TEXCOORD5, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX5);	//moved about +2px in X
		GXSetTexCoordGen(GX_TEXCOORD6, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX6);	//moved about +1px in X
 
		//tev kcolor		
		GXSetTevKColor(GX_KCOLOR0, m_cThreshold);
		GXSetTevKColorSel(GX_TEVSTAGE0, GX_TEV_KCSEL_K0);
		//todo: generate gauss factors
		//1 6 15 20 15 6 1 ~> 64
		u8	uGauss_3 = 256 * 1 / 64;	//= 256 * 1 / 32 when GX_CS_DIVIDE_2
		u8	uGauss_2 = 256 * 6 / 64;	//= 256 * 6 / 32 when GX_CS_DIVIDE_2
		u8	uGauss_1 = 256 * 15 / 64;	//= 256 * 15 / 32 when GX_CS_DIVIDE_2
		u8	uGauss_0 = 256 * 20 / 64;	//= 256 * 20 / 32 when GX_CS_DIVIDE_2
		GXColor	cGaussFactors = {uGauss_0, uGauss_1, uGauss_2, uGauss_3};
		GXSetTevKColor(GX_KCOLOR1, cGaussFactors);
 
		GXSetTevKColorSel(GX_TEVSTAGE1, GX_TEV_KCSEL_K1_R);
		GXSetTevKColorSel(GX_TEVSTAGE2, GX_TEV_KCSEL_K1_G);
		GXSetTevKColorSel(GX_TEVSTAGE3, GX_TEV_KCSEL_K1_G);
		GXSetTevKColorSel(GX_TEVSTAGE4, GX_TEV_KCSEL_K1_B);
		GXSetTevKColorSel(GX_TEVSTAGE5, GX_TEV_KCSEL_K1_B);
		GXSetTevKColorSel(GX_TEVSTAGE6, GX_TEV_KCSEL_K1_A);
		GXSetTevKColorSel(GX_TEVSTAGE7, GX_TEV_KCSEL_K1_A);
 
		//tev stages //(D {+,-} ( (1-C)*A + C*B ) + X) * S
		GXSetNumTevStages(8);
 
		//1st stage: reg0 = clamp(tex > threshold = tex : 0, 0, 255)
		//R: d[R] + ((a[R] > b[R]) ? c[R] :0 );
		//G: d[G] + ((a[G] > b[G]) ? c[G] :0 );
		//B: d[B] + ((a[B] > b[B]) ? c[B] :0 );
		GXSetTevOrder( GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR_NULL );
 
		//GXSetTevColorIn(GX_TEVSTAGE0, GX_CC_ZERO, GX_CC_KONST, GX_CC_ONE, GX_CC_TEXC);
		//GXSetTevColorOp(GX_TEVSTAGE0, GX_TEV_SUB, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevColorIn(GX_TEVSTAGE0, GX_CC_TEXC, GX_CC_KONST, GX_CC_TEXC, GX_CC_ZERO);
		GXSetTevColorOp(GX_TEVSTAGE0, GX_TEV_COMP_RGB8_GT, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVREG0);
 
		GXSetTevAlphaIn(GX_TEVSTAGE0, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_KONST);
		GXSetTevAlphaOp(GX_TEVSTAGE0, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVREG0);
 
		//2nd stage: regprev = reg0 * 20/64, texcoord0	
		GXSetTevOrder( GX_TEVSTAGE1, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE1, GX_CC_ZERO, GX_CC_C0, GX_CC_KONST, GX_CC_ZERO);
		GXSetTevColorOp(GX_TEVSTAGE1, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE1, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_A0);
		GXSetTevAlphaOp(GX_TEVSTAGE1, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
 
		//3rd stage: regprev += reg0 * 1/64, texcoord1
		GXSetTevOrder( GX_TEVSTAGE2, GX_TEXCOORD1, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE2, GX_CC_ZERO, GX_CC_C0, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE2, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE2, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_A0);
		GXSetTevAlphaOp(GX_TEVSTAGE2, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//4th stage: regprev += reg0 * 1/64, texcoord4
		GXSetTevOrder( GX_TEVSTAGE3, GX_TEXCOORD4, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE3, GX_CC_ZERO, GX_CC_C0, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE3, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE3, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_A0);
		GXSetTevAlphaOp(GX_TEVSTAGE3, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
 
		//5th stage: regprev += reg0 * 6/64, texcoord2
		GXSetTevOrder( GX_TEVSTAGE4, GX_TEXCOORD2, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE4, GX_CC_ZERO, GX_CC_C0, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE4, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE4, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_A0);
		GXSetTevAlphaOp(GX_TEVSTAGE4, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//6th stage: regprev += reg0 * 6/64, texcoord5
		GXSetTevOrder( GX_TEVSTAGE5, GX_TEXCOORD5, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE5, GX_CC_ZERO, GX_CC_C0, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE5, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE5, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_A0);
		GXSetTevAlphaOp(GX_TEVSTAGE5, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
 
		//7th stage: regprev += reg0 * 15/64, texcoord3
		GXSetTevOrder( GX_TEVSTAGE6, GX_TEXCOORD3, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE6, GX_CC_ZERO, GX_CC_C0, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE6, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE6, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_A0);
		GXSetTevAlphaOp(GX_TEVSTAGE6, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//8th stage: regprev += reg0 * 15/64, texcoord6
		GXSetTevOrder( GX_TEVSTAGE7, GX_TEXCOORD6, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE7, GX_CC_ZERO, GX_CC_C0, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE7, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE7, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_A0);
		GXSetTevAlphaOp(GX_TEVSTAGE7, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
 
 
		//pixel logic	
		GXSetZMode( GX_TRUE, GX_ALWAYS, GX_TRUE );	
		GXSetZCompLoc( GX_DISABLE );    
		GXSetBlendMode(GX_BM_NONE, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_COPY);
 
		//display on 4 quads
		SetupQuadVertexDesc(1);
		DrawQuad(viewport, s_rRedux1);
		DrawQuad(viewport, s_rRedux2);
		DrawQuad(viewport, s_rRedux3);
		DrawQuad(viewport, s_rRedux4);
 
		//done 1st pass
		GXFlush();
		GXPixModeSync();		
 
		//////////////////////////////////////////////////////////////////////////
		//2nd pass
 
		//capture EFB
		g_FramebufferAccessor.CaptureFramebuffer(&efbPass2, GX_FALSE); //GX_TRUE		
 
		//texture
		GXInvalidateTexAll();
		GXLoadTexObj(&efbPass2.efbTex, GX_TEXMAP0);
 
		//lighting off
		GXSetNumChans(0);
		GXSetChanCtrl(GX_COLOR0A0, GX_DISABLE, GX_SRC_REG, GX_SRC_REG, 0, GX_DF_NONE, GX_AF_NONE);
		GXSetChanCtrl(GX_COLOR1A1, GX_DISABLE, GX_SRC_REG, GX_SRC_REG, 0, GX_DF_NONE, GX_AF_NONE);
 
		//tex coords
		f32 fPixDecalY = 1.0 / G3D::G3DState::GetRenderModeObj()->efbHeight;
		//todo: generate texcoords accoordingly & correctly
		GXSetNumTexGens(7);	
		GXSetTexCoordGen(GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, GX_IDENTITY);	//moved about 0px  in Y
 
		Mtx n1, n2, n3, n4, n5, n6;
 
		MTXIdentity(n1);
		MTXRowCol(n1, 1, 3) = -3 * fPixDecalY;
		MTXIdentity(n2);
		MTXRowCol(n1, 1, 3) = -2 * fPixDecalY;
		MTXIdentity(n3);
		MTXRowCol(n2, 1, 3) = -1 * fPixDecalY;
		MTXIdentity(n3);
		MTXRowCol(n3, 1, 3) = +3 * fPixDecalY;
		MTXIdentity(n4);
		MTXRowCol(n3, 1, 3) = +3 * fPixDecalY;
		MTXIdentity(n5);
		MTXRowCol(n3, 1, 3) = +2 * fPixDecalY;
		MTXIdentity(n6);
		MTXRowCol(n3, 1, 3) = +1 * fPixDecalY;
 
		GXLoadTexMtxImm(n1, GX_TEXMTX1, GX_MTX2x4);
		GXLoadTexMtxImm(n2, GX_TEXMTX2, GX_MTX2x4);
		GXLoadTexMtxImm(n3, GX_TEXMTX3, GX_MTX2x4);
		GXLoadTexMtxImm(n4, GX_TEXMTX4, GX_MTX2x4);
		GXLoadTexMtxImm(n5, GX_TEXMTX5, GX_MTX2x4);
		GXLoadTexMtxImm(n6, GX_TEXMTX6, GX_MTX2x4);
 
		GXSetTexCoordGen(GX_TEXCOORD1, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX1);	//moved about -3px in Y
		GXSetTexCoordGen(GX_TEXCOORD2, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX2);	//moved about -2px in Y
		GXSetTexCoordGen(GX_TEXCOORD3, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX3);	//moved about -1px in Y
		GXSetTexCoordGen(GX_TEXCOORD4, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX4);	//moved about +3px in Y
		GXSetTexCoordGen(GX_TEXCOORD5, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX5);	//moved about +2px in Y
		GXSetTexCoordGen(GX_TEXCOORD6, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX6);	//moved about +1px in Y
 
		//tev kcolor		
		GXSetTevKColor(GX_KCOLOR1, cGaussFactors);
 
		GXSetTevKColorSel(GX_TEVSTAGE0, GX_TEV_KCSEL_K1_R);
		GXSetTevKColorSel(GX_TEVSTAGE1, GX_TEV_KCSEL_K1_G);
		GXSetTevKColorSel(GX_TEVSTAGE2, GX_TEV_KCSEL_K1_G);
		GXSetTevKColorSel(GX_TEVSTAGE3, GX_TEV_KCSEL_K1_B);
		GXSetTevKColorSel(GX_TEVSTAGE4, GX_TEV_KCSEL_K1_B);
		GXSetTevKColorSel(GX_TEVSTAGE5, GX_TEV_KCSEL_K1_A);
		GXSetTevKColorSel(GX_TEVSTAGE6, GX_TEV_KCSEL_K1_A);
 
		//tev stages //(D {+,-} ( (1-C)*A + C*B ) + X) * S
		GXSetNumTevStages(7);
 
		//1st stage: regprev = texc * 20/64, texcoord0	
		GXSetTevOrder( GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE0, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_ZERO);
		GXSetTevColorOp(GX_TEVSTAGE0, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE0, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_TEXA);
		GXSetTevAlphaOp(GX_TEVSTAGE0, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
 
		//2nd stage: regprev += texc * 1/64, texcoord1
		GXSetTevOrder( GX_TEVSTAGE1, GX_TEXCOORD1, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE1, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE1, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE1, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_TEXA);
		GXSetTevAlphaOp(GX_TEVSTAGE1, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//3rd stage: regprev += texc * 1/64, texcoord4
		GXSetTevOrder( GX_TEVSTAGE2, GX_TEXCOORD4, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE2, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE2, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE2, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_TEXA);
		GXSetTevAlphaOp(GX_TEVSTAGE2, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
 
		//4th stage: regprev += texc * 6/64, texcoord2
		GXSetTevOrder( GX_TEVSTAGE3, GX_TEXCOORD2, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE3, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE3, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE3, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_TEXA);
		GXSetTevAlphaOp(GX_TEVSTAGE3, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//5th stage: regprev += texc * 6/64, texcoord5
		GXSetTevOrder( GX_TEVSTAGE4, GX_TEXCOORD5, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE4, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE4, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE4, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_TEXA);
		GXSetTevAlphaOp(GX_TEVSTAGE4, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
 
		//6th stage: regprev += texc * 15/64, texcoord3
		GXSetTevOrder( GX_TEVSTAGE5, GX_TEXCOORD3, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE5, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE5, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE5, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_TEXA);
		GXSetTevAlphaOp(GX_TEVSTAGE5, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//7th stage: regprev += texc * 15/64, texcoord6
		GXSetTevOrder( GX_TEVSTAGE6, GX_TEXCOORD6, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE6, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE6, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE6, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_TEXA);
		GXSetTevAlphaOp(GX_TEVSTAGE6, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//pixel logic	
		GXSetZMode( GX_TRUE, GX_ALWAYS, GX_TRUE );	
		GXSetZCompLoc( GX_DISABLE );    
		GXSetBlendMode(GX_BM_NONE, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_COPY);
 
		//display on 1 quads
		SetupQuadVertexDesc(1);
		DrawQuad(viewport, 0, 0, pRenderMode->fbWidth, pRenderMode->efbHeight, 1);
 
 
		//done 2nd pass
		GXFlush();
		GXPixModeSync();		
 
		//////////////////////////////////////////////////////////////////////////
		//3rd pass
 
		//capture EFB
		g_FramebufferAccessor.CaptureFramebuffer(&efbRedux1, GX_FALSE);//GX_TRUE
		g_FramebufferAccessor.CaptureFramebuffer(&efbRedux2, GX_FALSE);//GX_TRUE
		g_FramebufferAccessor.CaptureFramebuffer(&efbRedux3, GX_FALSE); //GX_TRUE
		g_FramebufferAccessor.CaptureFramebuffer(&efbRedux4, GX_FALSE); //GX_TRUE
 
 
		//texture
		//	GXInvalidateTexAll();
		GXLoadTexObj(&efbFull.efbTex, GX_TEXMAP0);
		GXLoadTexObj(&efbRedux1.efbTex, GX_TEXMAP1);
		GXLoadTexObj(&efbRedux2.efbTex, GX_TEXMAP2);
		GXLoadTexObj(&efbRedux3.efbTex, GX_TEXMAP3);
		GXLoadTexObj(&efbRedux4.efbTex, GX_TEXMAP4);
 
		//lighting off
		GXSetNumChans(0);
		GXSetChanCtrl(GX_COLOR0A0, GX_DISABLE, GX_SRC_REG, GX_SRC_REG, 0, GX_DF_NONE, GX_AF_NONE);
		GXSetChanCtrl(GX_COLOR1A1, GX_DISABLE, GX_SRC_REG, GX_SRC_REG, 0, GX_DF_NONE, GX_AF_NONE);
 
		//tex coords
		GXSetNumTexGens(5);	
		GXSetTexCoordGen(GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, GX_IDENTITY);
		GXSetTexCoordGen(GX_TEXCOORD1, GX_TG_MTX2x4, GX_TG_TEX1, GX_IDENTITY);
		GXSetTexCoordGen(GX_TEXCOORD2, GX_TG_MTX2x4, GX_TG_TEX2, GX_IDENTITY);
		GXSetTexCoordGen(GX_TEXCOORD3, GX_TG_MTX2x4, GX_TG_TEX3, GX_IDENTITY);
		GXSetTexCoordGen(GX_TEXCOORD4, GX_TG_MTX2x4, GX_TG_TEX4, GX_IDENTITY);
 
		//tev stages //(D {+,-} ( (1-C)*A + C*B ) + X) * S
		GXSetNumTevStages(5);
 
		//tev kcolor		
		u8 uConstAlpha = 255;
		m_cFactorRedux1.a = uConstAlpha;
 
		GXSetTevKColor(GX_KCOLOR0, m_cFactorRedux1);
		GXSetTevKColor(GX_KCOLOR1, m_cFactorRedux2);
		GXSetTevKColor(GX_KCOLOR2, m_cFactorRedux3);
		GXSetTevKColor(GX_KCOLOR3, m_cFactorRedux4);		
 
		GXSetTevKAlphaSel(GX_TEVSTAGE0, GX_TEV_KASEL_1);
		GXSetTevKColorSel(GX_TEVSTAGE1, GX_TEV_KCSEL_K0);
		GXSetTevKColorSel(GX_TEVSTAGE2, GX_TEV_KCSEL_K1);
		GXSetTevKColorSel(GX_TEVSTAGE3, GX_TEV_KCSEL_K2);
		GXSetTevKColorSel(GX_TEVSTAGE4, GX_TEV_KCSEL_K3);
 
		//1st stage: tex0 passthrough
		GXSetTevOrder( GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR_NULL );
 
		//GXSetTevColorIn(GX_TEVSTAGE0, GX_CC_ZERO, GX_CC_TEXC, GX_CC_RASC, GX_CC_ZERO);
		GXSetTevColorIn(GX_TEVSTAGE0, GX_CC_ZERO, GX_CC_ZERO, GX_CC_RASC, GX_CC_TEXC);
		GXSetTevColorOp(GX_TEVSTAGE0, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
		//GXSetTevAlphaIn(GX_TEVSTAGE0, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_RASA);
		GXSetTevAlphaIn(GX_TEVSTAGE0, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_KONST);
		GXSetTevAlphaOp(GX_TEVSTAGE0, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//2nd stage: stage0 + tex1 (might need clamping)
		GXSetTevOrder( GX_TEVSTAGE1, GX_TEXCOORD1, GX_TEXMAP1, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE1, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE1, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
		GXSetTevAlphaIn(GX_TEVSTAGE1, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_APREV);
		GXSetTevAlphaOp(GX_TEVSTAGE1, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//3rd stage: stage1 + tex2 (might need clamping)
		GXSetTevOrder( GX_TEVSTAGE2, GX_TEXCOORD2, GX_TEXMAP2, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE2, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE2, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
		GXSetTevAlphaIn(GX_TEVSTAGE2, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_APREV);
		GXSetTevAlphaOp(GX_TEVSTAGE2, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//4th stage: stage2 + tex3 (might need clamping)
		GXSetTevOrder( GX_TEVSTAGE3, GX_TEXCOORD3, GX_TEXMAP3, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE3, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE3, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
		GXSetTevAlphaIn(GX_TEVSTAGE3, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_APREV);
		GXSetTevAlphaOp(GX_TEVSTAGE3, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//5th stage: stage3 + tex4 (might need clamping)
		GXSetTevOrder( GX_TEVSTAGE4, GX_TEXCOORD4, GX_TEXMAP4, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE4, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE4, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
		GXSetTevAlphaIn(GX_TEVSTAGE4, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_APREV);
		GXSetTevAlphaOp(GX_TEVSTAGE4, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//display on 1 quad
		SetupQuadVertexDesc(5, true);
		//DrawQuad(viewport, 200, 200, 400, 300, 5);
		DrawQuad(viewport, 0, 0, pRenderMode->fbWidth, pRenderMode->efbHeight, 5, m_cFactorFull);
 
		//done 3rd pass
		GXFlush();
 
		GXSetVerifyLevel(GX_WARN_NONE);
		//restore screen setup
		//todo: restore projection matrices to previous settings
		viewport.Restore();

Conclusion: je vais devoir optimiser ce bloom, parce ca ne sera pas le seul effet plein écran que je dois appliquer.

**Kurisu** · 14/06/2007, 16h02

Voici un bloom optimisé, n'utilisant qu'une texture reduite de 64x64 texels.
Très rapide, même avec un operateur gaussien avec un noyau de 7x7 points.

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

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GXSetVerifyLevel(GX_WARN_SEVERE);
 
		//screen size
		GXRenderModeObj* pRenderMode = G3D::G3DState::GetRenderModeObj();
 
		//screen setup
		//TODO: set screen projection matrix as ortho, with 1.0 = 1 px
		COrthoViewport	viewport(	0, 0, pRenderMode->fbWidth, pRenderMode->efbHeight,
									0, 0, pRenderMode->fbWidth, pRenderMode->efbHeight);	//pRenderMode->efbHeight,pRenderMode->fbWidth
		viewport.Setup();
 
 
		//////////////////////////////////////////////////////////////////////////
		//begin pass 1: threshold, reduction and horizontal gauss
		GXFlush();
		GXPixModeSync();
		//	GXInvalidateTexRegion();
 
		//capture EFB		
		g_FramebufferAccessor.CaptureFramebuffer(&efbFull, GX_FALSE);	//may be GX_TRUE
 
		//texture
		GXInvalidateTexAll();
		GXLoadTexObj(&efbFull.efbTex, GX_TEXMAP0);		
 
		//lighting off
		GXSetNumChans(0);
		GXSetChanCtrl(GX_COLOR0A0, GX_DISABLE, GX_SRC_REG, GX_SRC_REG, 0, GX_DF_NONE, GX_AF_NONE);
		GXSetChanCtrl(GX_COLOR1A1, GX_DISABLE, GX_SRC_REG, GX_SRC_REG, 0, GX_DF_NONE, GX_AF_NONE);
 
 
		//tex coords
		GXSetNumTexGens(7);	
		GXSetTexCoordGen(GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, GX_IDENTITY);
		//todo: setup texgens for horizontal blur		
		f32 fPixDecalX = 1.0 / G3D::G3DState::GetRenderModeObj()->fbWidth;
		Mtx mh1, mh2, mh3, mh4, mh5, mh6;
 
		MTXIdentity(mh1);
		MTXRowCol(mh1, 0, 3) = -3 * fPixDecalX;
 
		MTXIdentity(mh2);
		MTXRowCol(mh2, 0, 3) = -2 * fPixDecalX;
 
		MTXIdentity(mh3);
		MTXRowCol(mh3, 0, 3) = -1 * fPixDecalX;
 
		MTXIdentity(mh4);
		MTXRowCol(mh4, 0, 3) = +3 * fPixDecalX;
 
		MTXIdentity(mh5);
		MTXRowCol(mh5, 0, 3) = +2 * fPixDecalX;
 
		MTXIdentity(mh6);
		MTXRowCol(mh6, 0, 3) = +1 * fPixDecalX;
 
		GXLoadTexMtxImm(mh1, GX_TEXMTX1, GX_MTX2x4);
		GXLoadTexMtxImm(mh2, GX_TEXMTX2, GX_MTX2x4);
		GXLoadTexMtxImm(mh3, GX_TEXMTX3, GX_MTX2x4);
		GXLoadTexMtxImm(mh4, GX_TEXMTX4, GX_MTX2x4);
		GXLoadTexMtxImm(mh5, GX_TEXMTX5, GX_MTX2x4);
		GXLoadTexMtxImm(mh6, GX_TEXMTX6, GX_MTX2x4);
 
		GXSetTexCoordGen(GX_TEXCOORD1, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX1);	//moved about -3px in X
		GXSetTexCoordGen(GX_TEXCOORD2, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX2);	//moved about -2px in X
		GXSetTexCoordGen(GX_TEXCOORD3, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX3);	//moved about -1px in X
		GXSetTexCoordGen(GX_TEXCOORD4, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX4);	//moved about +3px in X
		GXSetTexCoordGen(GX_TEXCOORD5, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX5);	//moved about +2px in X
		GXSetTexCoordGen(GX_TEXCOORD6, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX6);	//moved about +1px in X
 
		//todo: generate gauss factors
		//1 6 15 20 15 6 1 ~> 64
		u8	uGauss_3 = 256 * 1 / 64;	//= 256 * 1 / 32 when GX_CS_DIVIDE_2
		u8	uGauss_2 = 256 * 6 / 64;	//= 256 * 6 / 32 when GX_CS_DIVIDE_2
		u8	uGauss_1 = 256 * 15 / 64;	//= 256 * 15 / 32 when GX_CS_DIVIDE_2
		u8	uGauss_0 = 256 * 20 / 64;	//= 256 * 20 / 32 when GX_CS_DIVIDE_2
		GXColor	cGaussFactors = {uGauss_0, uGauss_1, uGauss_2, uGauss_3};
 
		//tev kcolor		
		GXSetTevKColor(GX_KCOLOR0, m_cThreshold);		
		GXSetTevKColorSel(GX_TEVSTAGE0, GX_TEV_KCSEL_K0);		
		GXSetTevKAlphaSel(GX_TEVSTAGE0, GX_TEV_KASEL_1);
 
		GXSetTevKColor(GX_KCOLOR2, cGaussFactors);
 
		GXSetTevKColorSel(GX_TEVSTAGE1, GX_TEV_KCSEL_K2_R);
		GXSetTevKColorSel(GX_TEVSTAGE2, GX_TEV_KCSEL_K2_G);
		GXSetTevKColorSel(GX_TEVSTAGE3, GX_TEV_KCSEL_K2_G);
		GXSetTevKColorSel(GX_TEVSTAGE4, GX_TEV_KCSEL_K2_B);
		GXSetTevKColorSel(GX_TEVSTAGE5, GX_TEV_KCSEL_K2_B);
		GXSetTevKColorSel(GX_TEVSTAGE6, GX_TEV_KCSEL_K2_A);
		GXSetTevKColorSel(GX_TEVSTAGE7, GX_TEV_KCSEL_K2_A);
 
 
		//tev stages //(D {+,-} ( (1-C)*A + C*B ) + X) * S
		//1st stage: clamp(tex1 > threshold ? tex1 : 0, 0, 255)
		//R: d[R] + ((a[R] > b[R]) ? c[R] :0 );
		//G: d[G] + ((a[G] > b[G]) ? c[G] :0 );
		//B: d[B] + ((a[B] > b[B]) ? c[B] :0 );
 
		//tev stages //(D {+,-} ( (1-C)*A + C*B ) + X) * S
		GXSetNumTevStages(8);
 
 
		//1st stage: reg0 = clamp(tex1 > threshold ? tex1 : 0, 0, 255)
		//R: d[R] + ((a[R] > b[R]) ? c[R] :0 );
		//G: d[G] + ((a[G] > b[G]) ? c[G] :0 );
		//B: d[B] + ((a[B] > b[B]) ? c[B] :0 );
		GXSetTevOrder( GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE0, GX_CC_TEXC, GX_CC_KONST, GX_CC_TEXC, GX_CC_ZERO);
		GXSetTevColorOp(GX_TEVSTAGE0, GX_TEV_COMP_RGB8_GT, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVREG0);
 
		GXSetTevAlphaIn(GX_TEVSTAGE0, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_KONST);
		GXSetTevAlphaOp(GX_TEVSTAGE0, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVREG0);
 
		//2nd stage: regprev = reg0 * 20/64, texcoord0	
		GXSetTevOrder( GX_TEVSTAGE1, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE1, GX_CC_ZERO, GX_CC_C0, GX_CC_KONST, GX_CC_ZERO);
		GXSetTevColorOp(GX_TEVSTAGE1, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE1, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_A0);
		GXSetTevAlphaOp(GX_TEVSTAGE1, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
 
		//3rd stage: regprev += reg0 * 1/64, texcoord1
		GXSetTevOrder( GX_TEVSTAGE2, GX_TEXCOORD1, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE2, GX_CC_ZERO, GX_CC_C0, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE2, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE2, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_A0);
		GXSetTevAlphaOp(GX_TEVSTAGE2, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//4th stage: regprev += reg0 * 1/64, texcoord4
		GXSetTevOrder( GX_TEVSTAGE3, GX_TEXCOORD4, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE3, GX_CC_ZERO, GX_CC_C0, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE3, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE3, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_A0);
		GXSetTevAlphaOp(GX_TEVSTAGE3, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
 
		//5th stage: regprev += reg0 * 6/64, texcoord2
		GXSetTevOrder( GX_TEVSTAGE4, GX_TEXCOORD2, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE4, GX_CC_ZERO, GX_CC_C0, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE4, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE4, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_A0);
		GXSetTevAlphaOp(GX_TEVSTAGE4, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//6th stage: regprev += reg0 * 6/64, texcoord5
		GXSetTevOrder( GX_TEVSTAGE5, GX_TEXCOORD5, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE5, GX_CC_ZERO, GX_CC_C0, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE5, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE5, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_A0);
		GXSetTevAlphaOp(GX_TEVSTAGE5, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
 
		//7th stage: regprev += reg0 * 15/64, texcoord3
		GXSetTevOrder( GX_TEVSTAGE6, GX_TEXCOORD3, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE6, GX_CC_ZERO, GX_CC_C0, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE6, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE6, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_A0);
		GXSetTevAlphaOp(GX_TEVSTAGE6, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//8th stage: regprev += reg0 * 15/64, texcoord6
		GXSetTevOrder( GX_TEVSTAGE7, GX_TEXCOORD6, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE7, GX_CC_ZERO, GX_CC_C0, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE7, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE7, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_A0);
		GXSetTevAlphaOp(GX_TEVSTAGE7, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
 
		//pixel logic	
		GXSetZMode( GX_TRUE, GX_ALWAYS, GX_TRUE );	
		GXSetZCompLoc( GX_DISABLE );    
		GXSetBlendMode(GX_BM_NONE, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_COPY);
 
		//display on 1 texture on 1 quad
		SetupQuadVertexDesc(1);
		DrawQuad(viewport, 0, 0, m_uSize, m_uSize, 1);
 
		//done 1st pass
		GXFlush();
		GXPixModeSync();
 
 
		//////////////////////////////////////////////////////////////////////////
		//begin pass 2: vertical gauss
 
		//capture EFB
		g_FramebufferAccessor.CaptureFramebuffer(&efbRedux, GX_FALSE);	//may be GX_TRUE
 
		//texture
		GXInvalidateTexAll();		
		GXLoadTexObj(&efbRedux.efbTex, GX_TEXMAP0);
 
		//lighting off
		GXSetNumChans(0);
		GXSetChanCtrl(GX_COLOR0A0, GX_DISABLE, GX_SRC_REG, GX_SRC_REG, 0, GX_DF_NONE, GX_AF_NONE);
		GXSetChanCtrl(GX_COLOR1A1, GX_DISABLE, GX_SRC_REG, GX_SRC_REG, 0, GX_DF_NONE, GX_AF_NONE);
 
		//tex coords
		GXSetNumTexGens(7);	
		GXSetTexCoordGen(GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, GX_IDENTITY);		
		//todo: setup texgens for vertical blur		
		f32 fPixDecalY = 1.0 / G3D::G3DState::GetRenderModeObj()->efbHeight;
 
		Mtx mv1, mv2, mv3, mv4, mv5, mv6;
 
		MTXIdentity(mv1);
		MTXRowCol(mv1, 1, 3) = -3 * fPixDecalY;
 
		MTXIdentity(mv2);
		MTXRowCol(mv2, 1, 3) = -2 * fPixDecalY;
 
		MTXIdentity(mv3);
		MTXRowCol(mv3, 1, 3) = -1 * fPixDecalY;
 
		MTXIdentity(mv4);
		MTXRowCol(mv4, 1, 3) = +3 * fPixDecalY;
 
		MTXIdentity(mv5);
		MTXRowCol(mv5, 1, 3) = +2 * fPixDecalY;
 
		MTXIdentity(mv6);
		MTXRowCol(mv6, 1, 3) = +1 * fPixDecalY;
 
		GXLoadTexMtxImm(mv1, GX_TEXMTX1, GX_MTX2x4);
		GXLoadTexMtxImm(mv2, GX_TEXMTX2, GX_MTX2x4);
		GXLoadTexMtxImm(mv3, GX_TEXMTX3, GX_MTX2x4);
		GXLoadTexMtxImm(mv4, GX_TEXMTX4, GX_MTX2x4);
		GXLoadTexMtxImm(mv5, GX_TEXMTX5, GX_MTX2x4);
		GXLoadTexMtxImm(mv6, GX_TEXMTX6, GX_MTX2x4);
 
		GXSetTexCoordGen(GX_TEXCOORD1, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX1);	//moved about -3px in Y
		GXSetTexCoordGen(GX_TEXCOORD2, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX2);	//moved about -2px in Y
		GXSetTexCoordGen(GX_TEXCOORD3, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX3);	//moved about -1px in Y
		GXSetTexCoordGen(GX_TEXCOORD4, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX4);	//moved about +3px in Y
		GXSetTexCoordGen(GX_TEXCOORD5, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX5);	//moved about +2px in Y
		GXSetTexCoordGen(GX_TEXCOORD6, GX_TG_MTX2x4, GX_TG_TEX0, GX_TEXMTX6);	//moved about +1px in Y
 
 
		//tev kcolor
		GXSetTevKColor(GX_KCOLOR2, cGaussFactors);
 
		GXSetTevKColorSel(GX_TEVSTAGE0, GX_TEV_KCSEL_K2_R);
		GXSetTevKColorSel(GX_TEVSTAGE1, GX_TEV_KCSEL_K2_G);
		GXSetTevKColorSel(GX_TEVSTAGE2, GX_TEV_KCSEL_K2_G);
		GXSetTevKColorSel(GX_TEVSTAGE3, GX_TEV_KCSEL_K2_B);
		GXSetTevKColorSel(GX_TEVSTAGE4, GX_TEV_KCSEL_K2_B);
		GXSetTevKColorSel(GX_TEVSTAGE5, GX_TEV_KCSEL_K2_A);
		GXSetTevKColorSel(GX_TEVSTAGE6, GX_TEV_KCSEL_K2_A);
 
 
		//tev stages //(D {+,-} ( (1-C)*A + C*B ) + X) * S
		GXSetNumTevStages(7);
 
		//1st stage: regprev = texc * 20/64, texcoord0	
		GXSetTevOrder( GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE0, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_ZERO);
		GXSetTevColorOp(GX_TEVSTAGE0, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE0, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_TEXA);
		GXSetTevAlphaOp(GX_TEVSTAGE0, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
 
		//2nd stage: regprev += texc * 1/64, texcoord1
		GXSetTevOrder( GX_TEVSTAGE1, GX_TEXCOORD1, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE1, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE1, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE1, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_TEXA);
		GXSetTevAlphaOp(GX_TEVSTAGE1, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//3rd stage: regprev += texc * 1/64, texcoord4
		GXSetTevOrder( GX_TEVSTAGE2, GX_TEXCOORD4, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE2, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE2, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE2, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_TEXA);
		GXSetTevAlphaOp(GX_TEVSTAGE2, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
 
		//4th stage: regprev += texc * 6/64, texcoord2
		GXSetTevOrder( GX_TEVSTAGE3, GX_TEXCOORD2, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE3, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE3, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE3, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_TEXA);
		GXSetTevAlphaOp(GX_TEVSTAGE3, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//5th stage: regprev += texc * 6/64, texcoord5
		GXSetTevOrder( GX_TEVSTAGE4, GX_TEXCOORD5, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE4, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE4, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE4, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_TEXA);
		GXSetTevAlphaOp(GX_TEVSTAGE4, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
 
		//6th stage: regprev += texc * 15/64, texcoord3
		GXSetTevOrder( GX_TEVSTAGE5, GX_TEXCOORD3, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE5, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE5, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE5, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_TEXA);
		GXSetTevAlphaOp(GX_TEVSTAGE5, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//7th stage: regprev += texc * 15/64, texcoord6
		GXSetTevOrder( GX_TEVSTAGE6, GX_TEXCOORD6, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE6, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE6, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE6, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_TEXA);
		GXSetTevAlphaOp(GX_TEVSTAGE6, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);	
 
 
		//pixel logic	
		GXSetZMode( GX_TRUE, GX_ALWAYS, GX_TRUE );	
		GXSetZCompLoc( GX_DISABLE );    
		GXSetBlendMode(GX_BM_NONE, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_COPY);
 
		//display on 1 texture on 1 quad
		SetupQuadVertexDesc(1);
		DrawQuad(viewport, 0, 0, m_uSize, m_uSize, 1);
 
		//done 2nd pass
		GXFlush();
		GXPixModeSync();
 
 
		//////////////////////////////////////////////////////////////////////////
		//begin pass 3: texture mixing
 
		//capture EFB		
		g_FramebufferAccessor.CaptureFramebuffer(&efbRedux, GX_FALSE);	//may be GX_TRUE
 
		//texture
		GXInvalidateTexAll();
		GXLoadTexObj(&efbFull.efbTex, GX_TEXMAP0);
		GXLoadTexObj(&efbRedux.efbTex, GX_TEXMAP1);
 
		//lighting off
		GXSetNumChans(0);
		GXSetChanCtrl(GX_COLOR0A0, GX_DISABLE, GX_SRC_REG, GX_SRC_REG, 0, GX_DF_NONE, GX_AF_NONE);
		GXSetChanCtrl(GX_COLOR1A1, GX_DISABLE, GX_SRC_REG, GX_SRC_REG, 0, GX_DF_NONE, GX_AF_NONE);
 
		//tex coords
		GXSetNumTexGens(2);	
		GXSetTexCoordGen(GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, GX_IDENTITY);
		GXSetTexCoordGen(GX_TEXCOORD1, GX_TG_MTX2x4, GX_TG_TEX1, GX_IDENTITY);
 
		//tev kcolor
		GXSetTevKColor(GX_KCOLOR1, m_cFactorRedux);
		GXSetTevKColorSel(GX_TEVSTAGE1, GX_TEV_KCSEL_K1);
 
		//tev stages //(D {+,-} ( (1-C)*A + C*B ) + X) * S
		GXSetNumTevStages(2);
 
		//1st stage: passthrough tex0
		GXSetTevOrder( GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE0, GX_CC_ZERO, GX_CC_ZERO, GX_CC_ZERO, GX_CC_TEXC);
		GXSetTevColorOp(GX_TEVSTAGE0, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE0, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_KONST);
		GXSetTevAlphaOp(GX_TEVSTAGE0, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
		//2nd stage: tex0 + stage0 * factor
		GXSetTevOrder(GX_TEVSTAGE1, GX_TEXCOORD1, GX_TEXMAP1, GX_COLOR_NULL );
 
		GXSetTevColorIn(GX_TEVSTAGE1, GX_CC_ZERO, GX_CC_TEXC, GX_CC_KONST, GX_CC_CPREV);
		GXSetTevColorOp(GX_TEVSTAGE1, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
 
		GXSetTevAlphaIn(GX_TEVSTAGE1, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_APREV);
		GXSetTevAlphaOp(GX_TEVSTAGE1, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_FALSE, GX_TEVPREV);
 
 
		//pixel logic	
		GXSetZMode( GX_TRUE, GX_ALWAYS, GX_TRUE );	
		GXSetZCompLoc( GX_DISABLE );    
		GXSetBlendMode(GX_BM_NONE, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_COPY);
 
		//display on 2 textures on 1 quad
		SetupQuadVertexDesc(2);
		DrawQuad(viewport, 0, 0, pRenderMode->fbWidth, pRenderMode->efbHeight, 2);
 
		//done 3rd pass
		GXFlush();
 
 
 
		GXSetVerifyLevel(GX_WARN_NONE);
		//restore screen setup
		//todo: restore projection matrices to previous settings
		viewport.Restore();

**alt3** · 14/06/2007, 16h07

Envoyé par Kurisu

donner des liens n'aurait pas fait de mal.

Ben c'est quoi developer.nvidia.com ?

filtre de Blooming

Développement 2D, 3D et Jeux

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