leenkx/Shaders/std/shadows.glsl

@@ -75,9 +75,15 @@ vec3 PCFTileAware(sampler2DShadow shadowMap,
 
 	#ifdef _ShadowMapTransparent
 	if (transparent == false) {
-		vec4 shadowmap_transparent = texture(shadowMapTransparent, uv);
+		vec3 transResult = vec3(0.0);
-		if (shadowmap_transparent.a < compare)
+		for (int x = -1; x <= 1; x++) {
-			result *= shadowmap_transparent.rgb;
+			for (int y = -1; y <= 1; y++) {
+				vec4 smt = texture(shadowMapTransparent,
+					clamp(uv + vec2(x, y) / smSize, tileMin, tileMax));
+				transResult += (smt.a < compare) ? smt.rgb : vec3(1.0);
+			}
+		}
+		result *= transResult / 9.0;
 	}
 	#endif
 
@@ -142,9 +148,15 @@ vec3 PCF(sampler2DShadow shadowMap,
 
 	#ifdef _ShadowMapTransparent
 	if (transparent == false) {
-		vec4 shadowmap_transparent = texture(shadowMapTransparent, uv);
+		vec3 transResult = vec3(0.0);
-		if (shadowmap_transparent.a < compare)
+		for (int x = -1; x <= 1; x++) {
-			result *= shadowmap_transparent.rgb;
+			for (int y = -1; y <= 1; y++) {
+				vec4 smt = texture(shadowMapTransparent,
+					uv + vec2(x, y) / smSize);
+				transResult += (smt.a < compare) ? smt.rgb : vec3(1.0);
+			}
+		}
+		result *= transResult / 9.0;
 	}
 	#endif
 
@@ -187,9 +199,19 @@ vec3 PCFCube(samplerCubeShadow shadowMapCube,
 
 	#ifdef _ShadowMapTransparent
 	if (transparent == false) {
-		vec4 shadowmap_transparent = texture(shadowMapCubeTransparent, ml);
+		vec3 transResult = vec3(0.0);
-		if (shadowmap_transparent.a < compare)
+		vec4 smt = texture(shadowMapCubeTransparent, ml);
-			result *= shadowmap_transparent.rgb;
+		transResult += (smt.a < compare) ? smt.rgb : vec3(1.0);
+		for (int x = -1; x <= 1; x += 2) {
+			for (int y = -1; y <= 1; y += 2) {
+				for (int z = -1; z <= 1; z += 2) {
+					smt = texture(shadowMapCubeTransparent,
+						ml + vec3(x, y, z) * s);
+					transResult += (smt.a < compare) ? smt.rgb : vec3(1.0);
+				}
+			}
+		}
+		result *= transResult / 9.0;
 	}
 	#endif
 
@@ -385,9 +407,15 @@ vec3 PCFFakeCube(sampler2DShadow shadowMap,
 
 	#ifdef _ShadowMapTransparent
 	if (transparent == false) {
-		vec4 shadowmap_transparent = texture(shadowMapTransparent, uvtiled);
+		vec3 transResult = vec3(0.0);
-		if (shadowmap_transparent.a < compare)
+		for (int x = -1; x <= 1; x++) {
-			result *= shadowmap_transparent.rgb;
+			for (int y = -1; y <= 1; y++) {
+				vec4 smt = texture(shadowMapTransparent,
+					clamp(uvtiled + vec2(x, y) / smSize, 0.0, 1.0));
+				transResult += (smt.a < compare) ? smt.rgb : vec3(1.0);
+			}
+		}
+		result *= transResult / 9.0;
 	}
 	#endif