diff --git a/src/shared/decals.c b/src/shared/decals.c
index e1de8b1f..49ba8fab 100644
--- a/src/shared/decals.c
+++ b/src/shared/decals.c
@@ -16,8 +16,6 @@
 
 var int autocvar_cl_decals = TRUE;
 
-#include "decals.h"
-
 #define DECALS_MAX 30
 
 #ifdef SSQC
@@ -168,17 +166,7 @@ const string g_decal_shader = \
 		"{\n" \
 			"clampmap %s\n" \
 			"rgbgen vertex\n" \
-			"blendfunc GL_ZERO GL_SRC_COLOR\n" \
-		"}\n" \
-	"}";
-
-const string g_decal_shader_add = \
-	"{\n" \
-		"polygonOffset\n" \
-		"{\n" \
-			"clampmap %s\n" \
-			"rgbgen vertex\n" \
-			"blendfunc add\n" \
+			"blendfunc blend\n" \
 		"}\n" \
 	"}";
 
@@ -198,36 +186,7 @@ void Decal_MakeShader(decal target)
 {
 	string shader_buff;
 	target.m_strShader = sprintf("decal_%s", target.m_strTexture);
-
-	if (target.style & DFLAG_INVERT) {
-		int i;
-		int *buff;
-		vector res;
-		int w, h;
-
-		res = drawgetimagesize(target.m_strTexture);
-		w = (int)res[0];
-		h = (int)res[1];
-		buff = r_readimage(target.m_strTexture, w, h);
-
-		/* we can only upload this under a new name */
-		target.m_strTexture = sprintf("%s_inv", target.m_strTexture);
-
-		if (buff != __NULL__) {
-			for (i = 0; i < ( w * h ); i++) {
-				//buff[i] = ~buff[i];
-			}
-			
-			r_uploadimage(target.m_strTexture, w, h, (void*)buff);
-			memfree(buff);
-		}
-	}
-
-	if (target.style & DFLAG_ADDITIVE) {
-		shader_buff = sprintf(g_decal_shader_add, target.m_strTexture);
-	} else {
-		shader_buff = sprintf(g_decal_shader, target.m_strTexture);
-	}
+	shader_buff = sprintf(g_decal_shader, target.m_strTexture);
 	shaderforname(target.m_strShader, shader_buff);
 }
 
@@ -257,16 +216,6 @@ void Decal_Parse(void)
 
 	new.color = [1,1,1];
 
-	for (int i = 0; i < g_decalwad.length; i++) {
-		if (new.m_strTexture == g_decalwad[i].name) {
-			new.color[0] = (g_decalwad[i].color[0] / 255);
-			new.color[1] = (g_decalwad[i].color[1] / 255);
-			new.color[2] = (g_decalwad[i].color[2] / 255);
-			new.style = g_decalwad[i].flags;
-			break;
-		}
-	}
-
 	new.size = drawgetimagesize(new.m_strTexture);
 
 	if (serverkeyfloat("*bspversion") == 30) {
diff --git a/src/shared/decals.h b/src/shared/decals.h
deleted file mode 100644
index 5228922e..00000000
--- a/src/shared/decals.h
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * Copyright (c) 2016-2019 Marco Hladik <marco@icculus.org>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
- * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
- * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-typedef struct
-{
-	string name;
-	vector color;
-	int flags;
-} decal_t;
-
-enumflags
-{
-	DFLAG_ADDITIVE,
-	DFLAG_INVERT
-};
-
-#define COLOR_REDBLOOD [114,25,7]
-#define COLOR_YELLOWBLOOD [248,224,122]
-
-decal_t g_decalwad[] =
-{
-	{ "{bigblood1", COLOR_REDBLOOD, DFLAG_INVERT },
-	{ "{bigblood2", COLOR_REDBLOOD, DFLAG_INVERT },
-	{ "{bproof1", [255,255,255], DFLAG_ADDITIVE },
-	{ "{break1", [255,255,255], DFLAG_ADDITIVE },
-	{ "{break2", [255,255,255], DFLAG_ADDITIVE },
-	{ "{break3", [255,255,255], DFLAG_ADDITIVE },
-	{ "{blood1", COLOR_REDBLOOD, DFLAG_INVERT },
-	{ "{blood2", COLOR_REDBLOOD, DFLAG_INVERT },
-	{ "{blood3", COLOR_REDBLOOD, DFLAG_INVERT },
-	{ "{blood4", COLOR_REDBLOOD, DFLAG_INVERT },
-	{ "{blood5", COLOR_REDBLOOD, DFLAG_INVERT },
-	{ "{blood6", COLOR_REDBLOOD, DFLAG_INVERT },
-	{ "{blood7", COLOR_REDBLOOD, DFLAG_INVERT },
-	{ "{blood8", COLOR_REDBLOOD, DFLAG_INVERT },
-	{ "{bloodhand1", COLOR_REDBLOOD, DFLAG_INVERT },
-	{ "{bloodhand2", COLOR_REDBLOOD, DFLAG_INVERT },
-	{ "{bloodhand3", COLOR_REDBLOOD, DFLAG_INVERT },
-	{ "{bloodhand4", COLOR_REDBLOOD, DFLAG_INVERT },
-	{ "{bloodhand5", COLOR_REDBLOOD, DFLAG_INVERT },
-	{ "{bloodhand6", COLOR_REDBLOOD, DFLAG_INVERT },
-	{ "{hand1", COLOR_REDBLOOD, DFLAG_INVERT },
-	{ "{shot1", [255,255,255], 0 },
-	{ "{shot2", [255,255,255], 0 },
-	{ "{shot3", [255,255,255], 0 },
-	{ "{shot4", [255,255,255], 0 },
-	{ "{shot5", [255,255,255], 0 },
-	{ "{bigshot1", [255,255,255], 0 },
-	{ "{bigshot2", [255,255,255], 0 },
-	{ "{bigshot3", [255,255,255], 0 },
-	{ "{bigshot4", [255,255,255], 0 },
-	{ "{bigshot5", [255,255,255], 0 },
-	{ "{bigshot6", [255,255,255], 0 },
-	{ "{scorch1", [255,255,255], 0 },
-	{ "{scorch2", [255,255,255], 0 },
-	{ "{scorch3", [255,255,255], 0 },
-	{ "{yblood1", COLOR_YELLOWBLOOD, DFLAG_INVERT },
-	{ "{yblood2", COLOR_YELLOWBLOOD, DFLAG_INVERT },
-	{ "{yblood3", COLOR_YELLOWBLOOD, DFLAG_INVERT },
-	{ "{yblood4", COLOR_YELLOWBLOOD, DFLAG_INVERT },
-	{ "{yblood5", COLOR_YELLOWBLOOD, DFLAG_INVERT },
-	{ "{yblood6", COLOR_YELLOWBLOOD, DFLAG_INVERT },
-	{ "{yblood7", COLOR_YELLOWBLOOD, DFLAG_INVERT },
-	{ "{yblood8", COLOR_YELLOWBLOOD, DFLAG_INVERT }
-};