Ensure w is reset to 1.f to prevent stale values.

3 files changed, 12 insertions, 8 deletions

diff --git a/libpcsxcore/pgxp_gte.c b/libpcsxcore/pgxp_gte.c
index 5d681d85..3ee5db22 100644
--- a/libpcsxcore/pgxp_gte.c
+++ b/libpcsxcore/pgxp_gte.c
@@ -306,17 +306,18 @@ void PGXP_RTPS(u32 _n, u32 _v)
 	float MAC2 = TRY + (R21 * VX(_n)) + (R22 * VY(_n)) + (R23 * VZ(_n));

 	float MAC3 = TRZ + (R31 * VX(_n)) + (R32 * VY(_n)) + (R33 * VZ(_n));

 

-	float H = psxRegs.CP2C.p[26].sw.l;

-	float SZ3 = max(MAC3, H);

-	float h_over_sz3 = H / SZ3;

+	float H = psxRegs.CP2C.p[26].sw.l;	// Near plane

+	float F = 0xFFFF;					// Far plane?

+	float SZ3 = max(MAC3, H);			// Clamp SZ3 to near plane because we have no clipping (no proper Z)

+	//	float h_over_sz3 = H / SZ3;

 

 	// Offsets with 16-bit shift

-	float OFX = (float)psxRegs.CP2C.p[ 24 ].sd / (float)(1 << 16);

-	float OFY = (float)psxRegs.CP2C.p[ 25 ].sd / (float)(1 << 16);

+	float OFX = (float)psxRegs.CP2C.p[24].sd / (float)(1 << 16);

+	float OFY = (float)psxRegs.CP2C.p[25].sd / (float)(1 << 16);

 

 	// PSX Screen space X,Y,W components

-	float sx = OFX + (MAC1 * h_over_sz3) * (Config.Widescreen ? 0.75 : 1);

-	float sy = OFY + (MAC2 * h_over_sz3);

+	float sx = OFX + (MAC1 * (H / SZ3)) * (Config.Widescreen ? 0.75 : 1);

+	float sy = OFY + (MAC2 * (H / SZ3));

 	float sw = SZ3;

 

 	PGXP_pushSXYZ2f(sx , sy , sw, _v);

diff --git a/plugins/peopsxgl/gpu.c b/plugins/peopsxgl/gpu.c
index 2237351d..60be981b 100755
--- a/plugins/peopsxgl/gpu.c
+++ b/plugins/peopsxgl/gpu.c
@@ -2995,7 +2995,8 @@ ENDVRAM:
 	   for (unsigned int i = 0; i < 4; i++)	//iCB: remove stale vertex data
 	   {
 		   vertex[i].x = vertex[i].y = 0.f;
-		   vertex[i].z = 1.f;
+		   vertex[i].z = 0.95f;
+		   vertex[i].w = 1.f;
 	   }
        primFunc[gpuCommand]((unsigned char *)gpuDataM);
 
diff --git a/plugins/peopsxgl/pgxp_gpu.c b/plugins/peopsxgl/pgxp_gpu.c
index 98b7a94d..67b381d8 100644
--- a/plugins/peopsxgl/pgxp_gpu.c
+++ b/plugins/peopsxgl/pgxp_gpu.c
@@ -115,6 +115,8 @@ void PGXP_glVertexfv(GLfloat* pV)
 		// pass complete vertex to OpenGL

 		glVertex4fv(pV);

 		vertexIdx++;

+

+		pV[3] = 1.f;

 	}

 	else

 	{