some im2d

src/d3d/rwd3d.h

@@ -64,7 +64,7 @@ struct Im3DVertex
 struct Im2DVertex
 {
 	float32 x, y, z;
-	float32 w;
+	float32 q;
 	uint32 color;
 	float32 u, v;
 
@@ -72,7 +72,7 @@ struct Im2DVertex
 	void setScreenY(float32 y) { this->y = y; }
 	void setScreenZ(float32 z) { this->z = z; }
 	void setCameraZ(float32 z) { }
-	void setRecipCameraZ(float32 recipz) { this->w = recipz; }
+	void setRecipCameraZ(float32 recipz) { this->q = recipz; }
 	void setColor(uint8 r, uint8 g, uint8 b, uint8 a) { this->color = COLOR_ARGB(a, r, g, b); }
 	void setU(float32 u, float recipZ) { this->u = u; }
 	void setV(float32 v, float recipZ) { this->v = v; }
@@ -80,7 +80,8 @@ struct Im2DVertex
 	float getScreenX(void) { return this->x; }
 	float getScreenY(void) { return this->y; }
 	float getScreenZ(void) { return this->z; }
-	float getCameraZ(void) { return this->w; }
+	float getCameraZ(void) { return 1.0f/this->q; }
+	float getRecipCameraZ(void) { return this->q; }
 	RGBA getColor(void) { return makeRGBA(this->color>>16 & 0xFF, this->color>>8 & 0xFF,
 		this->color & 0xFF, this->color>>24 & 0xFF); }
 	float getU(void) { return this->u; }

src/gl/rwgl3.h

@@ -143,6 +143,7 @@ struct Im2DVertex
 	float getScreenY(void) { return this->y; }
 	float getScreenZ(void) { return this->z; }
 	float getCameraZ(void) { return this->w; }
+	float getRecipCameraZ(void) { return 1.0f/this->w; }
 	RGBA getColor(void) { return makeRGBA(this->r, this->g, this->b, this->a); }
 	float getU(void) { return this->u; }
 	float getV(void) { return this->v; }

src/ps2/rwps2.h

@@ -12,6 +12,33 @@ void registerPlatformPlugins(void);
 
 extern Device renderdevice;
 
+struct Im2DVertex
+{
+	float32 x, y, z, w;
+	uint32  r, g, b, a;
+	float32 u, v, q, PAD;
+
+	void setScreenX(float32 x) { this->x = x; }
+	void setScreenY(float32 y) { this->y = y; }
+	void setScreenZ(float32 z) { this->z = z; }
+	void setCameraZ(float32 z) { this->w = z; }
+	void setRecipCameraZ(float32 recipz) { this->q = recipz; }
+	void setColor(uint8 r, uint8 g, uint8 b, uint8 a) {
+		this->r = r; this->g = g; this->b = b; this->a = a; }
+	void setU(float32 u, float recipz) { this->u = u; }
+	void setV(float32 v, float recipz) { this->v = v; }
+
+	float getScreenX(void) { return this->x; }
+	float getScreenY(void) { return this->y; }
+	float getScreenZ(void) { return this->z; }
+	float getCameraZ(void) { return this->w; }
+	float getRecipCameraZ(void) { return this->q; }
+	RGBA getColor(void) { return makeRGBA(this->r, this->g, this->b, this->a); }
+	float getU(void) { return this->u; }
+	float getV(void) { return this->v; }
+};
+
+
 struct InstanceData
 {
 	uint32 dataSize;

tools/playground/ras_test.cpp

@@ -798,18 +798,18 @@ rastest_renderTriangles(RWDEVICE::Im2DVertex *scrverts, int32 numVerts, uint16 *
 	while(numTris--){
 		for(i = 0; i < 3; i++){
 			iv = &scrverts[indices[i]];
-			v[i].x = iv->x * 16.0f;
+			v[i].x = iv->getScreenX() * 16.0f;
-			v[i].y = iv->y * 16.0f;
+			v[i].y = iv->getScreenY() * 16.0f;
-			v[i].z = 16777216*(1.0f-iv->z);
+			v[i].z = 16777216*(1.0f-iv->getScreenZ());
-			v[i].q = iv->w;
+			v[i].q = iv->getRecipCameraZ();
 			col = iv->getColor();
 			v[i].r = col.red;
 			v[i].g = col.green;
 			v[i].b = col.blue;
 			v[i].a = col.alpha;
 			v[i].f = 0;
-			v[i].s = iv->u*iv->w;
+			v[i].s = iv->u*iv->getRecipCameraZ();
-			v[i].t = iv->v*iv->w;
+			v[i].t = iv->v*iv->getRecipCameraZ();
 		}
 		drawTriangle(rs::canvas, v[0], v[1], v[2]);