Change the shape of the particle texture

src/swrenderer/drawers/r_draw.cpp

@@ -65,6 +65,8 @@ namespace swrenderer
 	int fuzzpos;
 	int fuzzviewheight;
 
+	uint32_t particle_texture[16 * 16];
+
 	short zeroarray[MAXWIDTH];
 	short screenheightarray[MAXWIDTH];
 
@@ -233,6 +235,22 @@ namespace swrenderer
 		}
 	}
 
+	void R_InitParticleTexture()
+	{
+		for (int y = 0; y < 16; y++)
+		{
+			for (int x = 0; x < 16; x++)
+			{
+				float dx = (8 - x) / 8.0f;
+				float dy = (8 - y) / 8.0f;
+				float dist = sqrt(dx * dx + dy * dy);
+				float alpha = clamp(3.0f - dist * 3.0f, 0.0f, 1.0f);
+
+				particle_texture[x + y * 16] = (int)(alpha * 64.0f + 0.5f);
+			}
+		}
+	}
+
 	namespace
 	{
 		bool R_SetBlendFunc(int op, fixed_t fglevel, fixed_t bglevel, int flags)

src/swrenderer/drawers/r_draw.h

@@ -121,6 +121,8 @@ namespace swrenderer
 	extern int fuzzpos;
 	extern int fuzzviewheight;
 
+	extern uint32_t particle_texture[16 * 16];
+
 	extern bool r_swtruecolor;
 
 	class SWPixelFormatDrawers
@@ -171,6 +173,7 @@ namespace swrenderer
 	void R_InitColumnDrawers();
 	void R_InitShadeMaps();
 	void R_InitFuzzTable(int fuzzoff);
+	void R_InitParticleTexture();
 
 	bool R_SetPatchStyle(FRenderStyle style, fixed_t alpha, int translation, uint32_t color, FDynamicColormap *&basecolormap);
 	bool R_SetPatchStyle(FRenderStyle style, float alpha, int translation, uint32_t color, FDynamicColormap *&basecolormap);

src/swrenderer/drawers/r_draw_pal.cpp

@@ -2768,29 +2768,6 @@ namespace swrenderer
 	
 	/////////////////////////////////////////////////////////////////////////////
 
-	namespace
-	{
-		static uint32_t particle_texture[16 * 16] =
-		{
-			1 * 1, 2 * 1, 3 * 1, 4 * 1, 5 * 1, 6 * 1, 7 * 1, 8 * 1, 8 * 1, 7 * 1, 6 * 1, 5 * 1, 4 * 1, 3 * 1, 2 * 1, 1 * 1,
-			1 * 2, 2 * 2, 3 * 2, 4 * 2, 5 * 2, 6 * 2, 7 * 2, 8 * 2, 8 * 2, 7 * 2, 6 * 2, 5 * 2, 4 * 2, 3 * 2, 2 * 2, 1 * 2,
-			1 * 3, 2 * 3, 3 * 3, 4 * 3, 5 * 3, 6 * 3, 7 * 3, 8 * 3, 8 * 3, 7 * 3, 6 * 3, 5 * 3, 4 * 3, 3 * 3, 2 * 3, 1 * 3,
-			1 * 4, 2 * 4, 3 * 4, 4 * 4, 5 * 4, 6 * 4, 7 * 4, 8 * 4, 8 * 4, 7 * 4, 6 * 4, 5 * 4, 4 * 4, 3 * 4, 2 * 4, 1 * 4,
-			1 * 5, 2 * 5, 3 * 5, 4 * 5, 5 * 5, 6 * 5, 7 * 5, 8 * 5, 8 * 5, 7 * 5, 6 * 5, 5 * 5, 4 * 5, 3 * 5, 2 * 5, 1 * 5,
-			1 * 6, 2 * 6, 3 * 6, 4 * 6, 5 * 6, 6 * 6, 7 * 6, 8 * 6, 8 * 6, 7 * 6, 6 * 6, 5 * 6, 4 * 6, 3 * 6, 2 * 6, 1 * 6,
-			1 * 7, 2 * 7, 3 * 7, 4 * 7, 5 * 7, 6 * 7, 7 * 7, 8 * 7, 8 * 7, 7 * 7, 6 * 7, 5 * 7, 4 * 7, 3 * 7, 2 * 7, 1 * 7,
-			1 * 8, 2 * 8, 3 * 8, 4 * 8, 5 * 8, 6 * 8, 7 * 8, 8 * 8, 8 * 8, 7 * 8, 6 * 8, 5 * 8, 4 * 8, 3 * 8, 2 * 8, 1 * 8,
-			1 * 8, 2 * 8, 3 * 8, 4 * 8, 5 * 8, 6 * 8, 7 * 8, 8 * 8, 8 * 8, 7 * 8, 6 * 8, 5 * 8, 4 * 8, 3 * 8, 2 * 8, 1 * 8,
-			1 * 7, 2 * 7, 3 * 7, 4 * 7, 5 * 7, 6 * 7, 7 * 7, 8 * 7, 8 * 7, 7 * 7, 6 * 7, 5 * 7, 4 * 7, 3 * 7, 2 * 7, 1 * 7,
-			1 * 6, 2 * 6, 3 * 6, 4 * 6, 5 * 6, 6 * 6, 7 * 6, 8 * 6, 8 * 6, 7 * 6, 6 * 6, 5 * 6, 4 * 6, 3 * 6, 2 * 6, 1 * 6,
-			1 * 5, 2 * 5, 3 * 5, 4 * 5, 5 * 5, 6 * 5, 7 * 5, 8 * 5, 8 * 5, 7 * 5, 6 * 5, 5 * 5, 4 * 5, 3 * 5, 2 * 5, 1 * 5,
-			1 * 4, 2 * 4, 3 * 4, 4 * 4, 5 * 4, 6 * 4, 7 * 4, 8 * 4, 8 * 4, 7 * 4, 6 * 4, 5 * 4, 4 * 4, 3 * 4, 2 * 4, 1 * 4,
-			1 * 3, 2 * 3, 3 * 3, 4 * 3, 5 * 3, 6 * 3, 7 * 3, 8 * 3, 8 * 3, 7 * 3, 6 * 3, 5 * 3, 4 * 3, 3 * 3, 2 * 3, 1 * 3,
-			1 * 2, 2 * 2, 3 * 2, 4 * 2, 5 * 2, 6 * 2, 7 * 2, 8 * 2, 8 * 2, 7 * 2, 6 * 2, 5 * 2, 4 * 2, 3 * 2, 2 * 2, 1 * 2,
-			1 * 1, 2 * 1, 3 * 1, 4 * 1, 5 * 1, 6 * 1, 7 * 1, 8 * 1, 8 * 1, 7 * 1, 6 * 1, 5 * 1, 4 * 1, 3 * 1, 2 * 1, 1 * 1
-		};
-	}
-
 	DrawParticleColumnPalCommand::DrawParticleColumnPalCommand(uint8_t *dest, int dest_y, int pitch, int count, uint32_t fg, uint32_t alpha, uint32_t fracposx)
 	{
 		_dest = dest;

src/swrenderer/drawers/r_draw_rgba.cpp

@@ -942,29 +942,6 @@ namespace swrenderer
 
 	/////////////////////////////////////////////////////////////////////////////
 
-	namespace
-	{
-		static uint32_t particle_texture[16 * 16] =
-		{
-			1 * 1, 2 * 1, 3 * 1, 4 * 1, 5 * 1, 6 * 1, 7 * 1, 8 * 1, 8 * 1, 7 * 1, 6 * 1, 5 * 1, 4 * 1, 3 * 1, 2 * 1, 1 * 1,
-			1 * 2, 2 * 2, 3 * 2, 4 * 2, 5 * 2, 6 * 2, 7 * 2, 8 * 2, 8 * 2, 7 * 2, 6 * 2, 5 * 2, 4 * 2, 3 * 2, 2 * 2, 1 * 2,
-			1 * 3, 2 * 3, 3 * 3, 4 * 3, 5 * 3, 6 * 3, 7 * 3, 8 * 3, 8 * 3, 7 * 3, 6 * 3, 5 * 3, 4 * 3, 3 * 3, 2 * 3, 1 * 3,
-			1 * 4, 2 * 4, 3 * 4, 4 * 4, 5 * 4, 6 * 4, 7 * 4, 8 * 4, 8 * 4, 7 * 4, 6 * 4, 5 * 4, 4 * 4, 3 * 4, 2 * 4, 1 * 4,
-			1 * 5, 2 * 5, 3 * 5, 4 * 5, 5 * 5, 6 * 5, 7 * 5, 8 * 5, 8 * 5, 7 * 5, 6 * 5, 5 * 5, 4 * 5, 3 * 5, 2 * 5, 1 * 5,
-			1 * 6, 2 * 6, 3 * 6, 4 * 6, 5 * 6, 6 * 6, 7 * 6, 8 * 6, 8 * 6, 7 * 6, 6 * 6, 5 * 6, 4 * 6, 3 * 6, 2 * 6, 1 * 6,
-			1 * 7, 2 * 7, 3 * 7, 4 * 7, 5 * 7, 6 * 7, 7 * 7, 8 * 7, 8 * 7, 7 * 7, 6 * 7, 5 * 7, 4 * 7, 3 * 7, 2 * 7, 1 * 7,
-			1 * 8, 2 * 8, 3 * 8, 4 * 8, 5 * 8, 6 * 8, 7 * 8, 8 * 8, 8 * 8, 7 * 8, 6 * 8, 5 * 8, 4 * 8, 3 * 8, 2 * 8, 1 * 8,
-			1 * 8, 2 * 8, 3 * 8, 4 * 8, 5 * 8, 6 * 8, 7 * 8, 8 * 8, 8 * 8, 7 * 8, 6 * 8, 5 * 8, 4 * 8, 3 * 8, 2 * 8, 1 * 8,
-			1 * 7, 2 * 7, 3 * 7, 4 * 7, 5 * 7, 6 * 7, 7 * 7, 8 * 7, 8 * 7, 7 * 7, 6 * 7, 5 * 7, 4 * 7, 3 * 7, 2 * 7, 1 * 7,
-			1 * 6, 2 * 6, 3 * 6, 4 * 6, 5 * 6, 6 * 6, 7 * 6, 8 * 6, 8 * 6, 7 * 6, 6 * 6, 5 * 6, 4 * 6, 3 * 6, 2 * 6, 1 * 6,
-			1 * 5, 2 * 5, 3 * 5, 4 * 5, 5 * 5, 6 * 5, 7 * 5, 8 * 5, 8 * 5, 7 * 5, 6 * 5, 5 * 5, 4 * 5, 3 * 5, 2 * 5, 1 * 5,
-			1 * 4, 2 * 4, 3 * 4, 4 * 4, 5 * 4, 6 * 4, 7 * 4, 8 * 4, 8 * 4, 7 * 4, 6 * 4, 5 * 4, 4 * 4, 3 * 4, 2 * 4, 1 * 4,
-			1 * 3, 2 * 3, 3 * 3, 4 * 3, 5 * 3, 6 * 3, 7 * 3, 8 * 3, 8 * 3, 7 * 3, 6 * 3, 5 * 3, 4 * 3, 3 * 3, 2 * 3, 1 * 3,
-			1 * 2, 2 * 2, 3 * 2, 4 * 2, 5 * 2, 6 * 2, 7 * 2, 8 * 2, 8 * 2, 7 * 2, 6 * 2, 5 * 2, 4 * 2, 3 * 2, 2 * 2, 1 * 2,
-			1 * 1, 2 * 1, 3 * 1, 4 * 1, 5 * 1, 6 * 1, 7 * 1, 8 * 1, 8 * 1, 7 * 1, 6 * 1, 5 * 1, 4 * 1, 3 * 1, 2 * 1, 1 * 1
-		};
-	}
-
 	DrawParticleColumnRGBACommand::DrawParticleColumnRGBACommand(uint32_t *dest, int dest_y, int pitch, int count, uint32_t fg, uint32_t alpha, uint32_t fracposx)
 	{
 		_dest = dest;

src/swrenderer/scene/r_viewport.cpp

@@ -163,6 +163,8 @@ namespace swrenderer
 				ylookup[i] = i * pitch;
 			}
 		}
+
+		R_InitParticleTexture();
 	}
 
 	void R_InitTextureMapping()