Small tweaks to make a few textures on n64start a bit nicer

main.cpp

@@ -158,6 +158,12 @@ int process_faces(const world_t* world, const std::vector<ps1bsp_texture_t>& tex
 			vertexSum = vertexSum + vertexPoint;
 		}
 
+		// If the texture doesn't tile, we don't need to correct the UVs as much
+		float sRange = maxS - minS;
+		float tRange = maxT - minT;
+		if (sRange < 1) sRange = 1;
+		if (tRange < 1) tRange = 1;
+
 		// Go over the edges again to fudge some UVs for the vertices (this second pass is only necessary because we don't have texture tiling yet)
 		for (int edgeListIdx = 0; edgeListIdx < face->ledge_num; ++edgeListIdx)
 		{
@@ -177,8 +183,8 @@ int process_faces(const world_t* world, const std::vector<ps1bsp_texture_t>& tex
 			// Calculate texture UVs
 			float s = (vertexPoint.dotProduct(texinfo->vectorS) + texinfo->distS) / miptex->width;
 			float t = (vertexPoint.dotProduct(texinfo->vectorT) + texinfo->distT) / miptex->height;
-			s = (s - minS) / (maxS - minS);
-			t = (t - minT) / (maxT - minT);
+			if (minS < 0 || maxS > 1) s = (s - minS) / sRange;
+			if (minT < 0 || maxT > 1) t = (t - minT) / tRange;
 
 			// Rescale the UVs to the dimensions of the mipmap we've selected for our texture atlas
 			faceVertex.u = (unsigned char)(s * (ps1tex.w - 1));

texture.cpp

@@ -46,6 +46,10 @@ bool process_textures(const world_t* world, std::vector<ps1bsp_texture_t>& outTe
 		// Shrink the larger textures, but keep smaller ones at their original size
 		int ps1mip = miptex->width > 64 || miptex->height > 64 ? 1 : 0;
 
+		// Make an exception for the difficulty selection teleporters
+		if (!strncmp(miptex->name, "skill", 5) || !strcmp(miptex->name, "quake"))
+			ps1mip = 0;
+
 		if (strcmp(miptex->name, "clip") && strcmp(miptex->name, "trigger"))
 			rectangles.emplace_back(rectpack2D::rect_xywh(0, 0, miptex->width >> ps1mip, miptex->height >> ps1mip));
 		else