fixed inverted irradiance on probes

added realtime irradiance for translucency

src/Probes/reflectionProbe.ts

@@ -103,7 +103,6 @@ export class ReflectionProbe {
         }
         this._renderTargetTexture = new RenderTargetTexture(name, size, scene, generateMipMaps, true, textureType, true);
 
-
         this._renderTargetTexture.onBeforeRenderObservable.add((faceIndex: number) => {
             switch (faceIndex) {
                 case 0:

src/Shaders/ShadersInclude/hdrFilteringFunctions.fx

@@ -123,7 +123,6 @@
 
 		vec3 irradiance(samplerCube inputTexture, vec3 N, vec2 filteringInfo) {
 			vec3 n = normalize(N);
-
 		    vec3 result = vec3(0.0);
 			vec3 tangent = abs(n.z) < 0.999 ? vec3(0., 0., 1.) : vec3(1., 0., 0.);
 			tangent = normalize(cross(tangent, n));

src/Shaders/ShadersInclude/pbrBlockReflection.fx

@@ -261,8 +261,12 @@
                     irradianceVector.z *= -1.0;
                 #endif
 
+                #ifdef INVERTCUBICMAP
+                    irradianceVector.y *= -1.0;
+                #endif
+
                 #if defined(WEBGL2) && defined(REALTIME_FILTERING)
-                    environmentIrradiance = irradiance(reflectionSampler, vec3(irradianceVector.x, -irradianceVector.y, irradianceVector.z), vReflectionFilteringInfo);
+                    environmentIrradiance = irradiance(reflectionSampler, irradianceVector, vReflectionFilteringInfo);
                 #else
                     environmentIrradiance = computeEnvironmentIrradiance(irradianceVector);
                 #endif

src/Shaders/ShadersInclude/pbrBlockSubSurface.fx

@@ -308,12 +308,19 @@ struct subSurfaceOutParams
             #ifdef REFLECTIONMAP_OPPOSITEZ
                 irradianceVector.z *= -1.0;
             #endif
+            #ifdef INVERTCUBICMAP
+                irradianceVector.y *= -1.0;
+            #endif
         #else
             vec3 irradianceVector = irradianceVector_;
         #endif
 
         #if defined(USESPHERICALFROMREFLECTIONMAP)
-            vec3 refractionIrradiance = computeEnvironmentIrradiance(-irradianceVector);
+            #if defined(WEBGL2) && defined(REALTIME_FILTERING)
+                vec3 refractionIrradiance = irradiance(reflectionSampler, -irradianceVector, vReflectionFilteringInfo);
+            #else
+                vec3 refractionIrradiance = computeEnvironmentIrradiance(-irradianceVector);
+            #endif
         #elif defined(USEIRRADIANCEMAP)
             #ifdef REFLECTIONMAP_3D
                 vec3 irradianceCoords = irradianceVector;