Update leenkx/Shaders/std/shadows.glsl

leenkx/Shaders/std/shadows.glsl

@@ -87,6 +87,35 @@ float lpToDepth(vec3 lp, const vec2 lightProj) {
 	return zcomp * 0.5 + 0.5;
 }
 
+#ifndef _ShadowMapAtlas
+float PCFCube(samplerCubeShadow shadowMapCube, vec3 lp, vec3 ml, float bias, vec2 lightProj, vec3 n) {
+    const float s = shadowmapCubePcfSize;
+    float compare = lpToDepth(lp, lightProj) - bias * 1.5;
+    ml = ml + n * bias * 20;
+    #ifdef _InvY
+    ml.y = -ml.y;
+    #endif
+    
+    float result = 0.0;
+    // Simple PCF for non-atlas mode, using samplerCubeShadow format
+    result = texture(shadowMapCube, vec4(ml, compare));
+    result += texture(shadowMapCube, vec4(ml + vec3(s, s, s), compare));
+    result += texture(shadowMapCube, vec4(ml + vec3(-s, s, s), compare));
+    result += texture(shadowMapCube, vec4(ml + vec3(s, -s, s), compare));
+    result += texture(shadowMapCube, vec4(ml + vec3(s, s, -s), compare));
+    result += texture(shadowMapCube, vec4(ml + vec3(-s, -s, s), compare));
+    result += texture(shadowMapCube, vec4(ml + vec3(s, -s, -s), compare));
+    result += texture(shadowMapCube, vec4(ml + vec3(-s, s, -s), compare));
+    result += texture(shadowMapCube, vec4(ml + vec3(-s, -s, -s), compare));
+    result /= 9.0;
+    
+    return result;
+}
+#endif
+
+#ifdef _ShadowMapAtlas
+
+
 vec3 PCFCube(samplerCubeShadow shadowMapCube, samplerCube shadowMapCubeTransparent, const vec3 lp, vec3 ml, const float bias, const vec2 lightProj, const vec3 n, const bool transparent) {
 	const float s = shadowmapCubePcfSize; // TODO: incorrect...
 	float compare = lpToDepth(lp, lightProj) - bias * 1.5;
@@ -115,7 +144,7 @@ vec3 PCFCube(samplerCubeShadow shadowMapCube, samplerCube shadowMapCubeTranspare
 	return result;
 }
 
-#ifdef _ShadowMapAtlas
+
 // transform "out-of-bounds" coordinates to the correct face/coordinate system
 // https://www.khronos.org/opengl/wiki/File:CubeMapAxes.png
 vec2 transformOffsetedUV(const int faceIndex, out int newFaceIndex, vec2 uv) {