diff --git a/engine/shaders/glsl/defaultwall.glsl b/engine/shaders/glsl/defaultwall.glsl
index a74c1b58d..3b3314590 100644
--- a/engine/shaders/glsl/defaultwall.glsl
+++ b/engine/shaders/glsl/defaultwall.glsl
@@ -1,7 +1,8 @@
-!!permu OFFSETMAPPING
+!!permu DELUXE
 !!permu FULLBRIGHT
 !!permu FOG
 !!permu LIGHTSTYLED
+!!permu BUMP
 !!cvarf r_glsl_offsetmapping_scale
 
 //this is what normally draws all of your walls, even with rtlights disabled
@@ -57,18 +58,22 @@ void main ()
 
 #ifdef FRAGMENT_SHADER
 //samplers
-uniform sampler2D s_t0;
-uniform sampler2D s_t1;
-#ifdef OFFSETMAPPING
-uniform sampler2D s_t2;
+uniform sampler2D s_t0;	//diffuse
+uniform sampler2D s_t1;	//lightmap0
+#if defined(OFFSETMAPPING) || defined(DELUXE)
+uniform sampler2D s_t2;	//normal
 #endif
+uniform sampler2D s_t3;	//deluxe0
 #ifdef FULLBRIGHT
-uniform sampler2D s_t4;
+uniform sampler2D s_t4;	//fullbright
 #endif
 #ifdef LIGHTSTYLED
-uniform sampler2D s_t5;
-uniform sampler2D s_t6;
-uniform sampler2D s_t7;
+uniform sampler2D s_t5;	//lightmap1
+uniform sampler2D s_t6;	//lightmap2
+uniform sampler2D s_t7;	//lightmap3
+uniform sampler2D s_t8;	//deluxe1
+uniform sampler2D s_t9;	//deluxe2
+uniform sampler2D s_t10;	//deluxe3
 #endif
 
 #ifdef LIGHTSTYLED
@@ -82,26 +87,50 @@ uniform vec4 e_colourident;
 #endif
 void main ()
 {
+//adjust texture coords for offsetmapping
 #ifdef OFFSETMAPPING
 	vec2 tcoffsetmap = offsetmap(s_t2, tc, eyevector);
 #define tc tcoffsetmap
 #endif
+
+//yay, regular texture!
 	gl_FragColor = texture2D(s_t0, tc);
+
+//modulate that by the lightmap(s) including deluxemap(s)
 #ifdef LIGHTSTYLED
 	vec4 lightmaps;
-	lightmaps  = texture2D(s_t1, lm ) * e_lmscale[0];
-	lightmaps += texture2D(s_t5, lm2) * e_lmscale[1];
-	lightmaps += texture2D(s_t6, lm3) * e_lmscale[2];
-	lightmaps += texture2D(s_t7, lm4) * e_lmscale[3];
+	#ifdef DELUXE
+		vec3 norm = texture2D(s_t2, tc).rgb;
+		lightmaps  = texture2D(s_t1, lm ) * e_lmscale[0] * dot(norm, texture2D(s_t3, lm ));
+		lightmaps += texture2D(s_t5, lm2) * e_lmscale[1] * dot(norm, texture2D(s_t8, lm2));
+		lightmaps += texture2D(s_t6, lm3) * e_lmscale[2] * dot(norm, texture2D(s_t9, lm3));
+		lightmaps += texture2D(s_t7, lm4) * e_lmscale[3] * dot(norm, texture2D(s_t10,lm4));
+	#else
+		lightmaps  = texture2D(s_t1, lm ) * e_lmscale[0];
+		lightmaps += texture2D(s_t5, lm2) * e_lmscale[1];
+		lightmaps += texture2D(s_t6, lm3) * e_lmscale[2];
+		lightmaps += texture2D(s_t7, lm4) * e_lmscale[3];
+	#endif
 	gl_FragColor.rgb *= lightmaps.rgb;
 #else
-	gl_FragColor.rgb *= (texture2D(s_t1, lm) * e_lmscale).rgb;
+	#ifdef DELUXE
+//gl_FragColor.rgb = dot(normalize(texture2D(s_t2, tc).rgb - 0.5), normalize(texture2D(s_t3, lm).rgb - 0.5));
+//gl_FragColor.rgb = texture2D(s_t3, lm).rgb;
+		gl_FragColor.rgb *= (texture2D(s_t1, lm) * e_lmscale).rgb * dot(normalize(texture2D(s_t2, tc).rgb-0.5), 2.0*(texture2D(s_t3, lm).rgb-0.5));
+	#else
+		gl_FragColor.rgb *= (texture2D(s_t1, lm) * e_lmscale).rgb;
+	#endif
 #endif
 
+//add on the fullbright
 #ifdef FULLBRIGHT
 	gl_FragColor.rgb += texture2D(s_t4, tc).rgb;
 #endif
+
+//entity modifiers
 	gl_FragColor = gl_FragColor * e_colourident;
+
+//and finally hide it all if we're fogged.
 #ifdef FOG
 	gl_FragColor = fog4(gl_FragColor);
 #endif
diff --git a/engine/shaders/glsl/rtlight.glsl b/engine/shaders/glsl/rtlight.glsl
index dcce47c12..0e055c0b3 100644
--- a/engine/shaders/glsl/rtlight.glsl
+++ b/engine/shaders/glsl/rtlight.glsl
@@ -1,6 +1,5 @@
 !!permu BUMP
 !!permu SPECULAR
-!!permu OFFSETMAPPING
 !!permu SKELETAL
 !!permu FOG
 !!cvarf r_glsl_offsetmapping_scale