diff --git a/shaders/info/buffers.txt b/shaders/info/buffers.txt
index 0453f215..ccff7cf5 100644
--- a/shaders/info/buffers.txt
+++ b/shaders/info/buffers.txt
@@ -4,7 +4,7 @@ shadowcolor1	RG32UI		1.0   R: rsm-color; G: normal-XYZ, sss*
 colortex2		RGBA32		1.0   deferred= R: color; G: normal; B: specular; A: lighting
 colortex3		R16F		1.0	  AO
 colortex4		RGB16F		1.0   pre-exposed HDR scene
-colortex5		RGBA16F		0.25	  HDR previous frame = RGB: pre-exposed HDR, A: Log Luminance
+colortex5		RGBA16F		0.25	  HDR previous frame [RGB: pre-exposed HDR, A: Log Luminance]
 colortex6		R16F		0.25   Log Luminance
 
 colortex7		RGB16F		1.0   HDR transparent / VL / bloom tiles
diff --git a/shaders/lib/lighting/pbr.glsl b/shaders/lib/lighting/pbr.glsl
index 2b2288a9..809d0ca1 100644
--- a/shaders/lib/lighting/pbr.glsl
+++ b/shaders/lib/lighting/pbr.glsl
@@ -198,7 +198,7 @@
                 sssDist = max(sssDist, contactLightDist);
 
                 float maxDist = SSS_MAXDIST * material.scattering;
-                float contactSSS = material.scattering * max(1.0 - sssDist / maxDist, 0.0);
+                float contactSSS = 0.7 * pow2(material.scattering) * max(1.0 - contactLightDist / maxDist, 0.0);
                 shadowSSS = mix(shadowSSS, contactSSS, contactShadowMix);
                 //shadowSSS *= mix(1.0, contactShadow, saturate(contactLightDist / (SSS_MAXDIST * material.scattering)));
             #endif
@@ -301,7 +301,8 @@
                 iblSpec *= (1.0 - roughL) * reflectColor * occlusion;
 
                 float iblFmax = max(max(iblF.x, iblF.y), iblF.z);
-                final.a += iblFmax * max(1.0 - final.a, 0.0);
+                //final.a += iblFmax * max(1.0 - final.a, 0.0);
+                final.a = min(final.a + iblFmax * exposure * final.a, 1.0);
             }
         #endif
 
@@ -360,7 +361,7 @@
             if (NoLm > EPSILON) {
                 float NoHm = max(dot(viewNormal, halfDir), 0.0);
 
-                vec3 sunSpec = GetSpecularBRDF(sunF, NoVm, NoLm, NoHm, roughL) * skyLightColorFinal * skyLight2 * shadowFinal;
+                vec3 sunSpec = GetSpecularBRDF(sunF, NoVm, NoLm, NoHm, roughL) * skyLightColorFinal * skyLight2 * shadowFinal * final.a;
                 
                 specular += sunSpec;// * material.albedo.a;
 
@@ -565,7 +566,7 @@
                 fogFactor = ApplyFog(final.rgb, viewPos, lightData);
             #elif defined RENDER_GBUFFER
                 #if defined RENDER_WATER || defined RENDER_HAND_WATER
-                    fogFactor = ApplyFog(final, viewPos, lightData, EPSILON);
+                    fogFactor = ApplyFog(final, viewPos, lightData, 1.0/255.0);
                 #else
                     fogFactor = ApplyFog(final, viewPos, lightData, alphaTestRef);
                 #endif
diff --git a/shaders/lib/material/default.glsl b/shaders/lib/material/default.glsl
index 9551ca2c..25650631 100644
--- a/shaders/lib/material/default.glsl
+++ b/shaders/lib/material/default.glsl
@@ -6,7 +6,7 @@ void ApplyHardCodedMaterials() {
 
     if (mc_Entity.x == 100.0 || mc_Entity.x == 101.0) {
         // Water
-        matSmooth = 0.96;
+        matSmooth = 0.98;
         matF0 = 0.02;
     }
     else if (mc_Entity.x == 102.0) {
@@ -16,7 +16,7 @@ void ApplyHardCodedMaterials() {
     else if (mc_Entity.x >= 10001.0 && mc_Entity.x <= 10004.0) {
         // Foliage
         matSmooth = 0.08;
-        matSSS = 0.85;
+        matSSS = 0.7;
         matF0 = 0.03;
     }
     else if (mc_Entity.x >= 11000.0 && mc_Entity.x < 11010) {
@@ -43,7 +43,7 @@ void ApplyHardCodedMaterials() {
             // Snow
             matSmooth = 0.4;
             matF0 = 0.02;
-            matSSS = 0.5;
+            matSSS = 0.6;
         }
         else if (mc_Entity.x == 11011) {
             // Slime
diff --git a/shaders/program/composite5.vsh b/shaders/program/composite5.vsh
index c8e87e55..ca90afb3 100644
--- a/shaders/program/composite5.vsh
+++ b/shaders/program/composite5.vsh
@@ -41,7 +41,7 @@ out vec2 texcoord;
 
         blockLightBrightness = pow3(blockLightBrightness) * BlockLightLux;
 
-        return 4.0 + 0.05 * max(blockLightBrightness, skyLightBrightness);
+        return 0.04 * (MinWorldLux + max(blockLightBrightness, skyLightBrightness));
     }
 #endif
 
diff --git a/shaders/shaders.properties b/shaders/shaders.properties
index d3fb7c2e..20b0dc1c 100644
--- a/shaders/shaders.properties
+++ b/shaders/shaders.properties
@@ -4,7 +4,7 @@ profile.POTATO=CAMERA_EXPOSURE_MODE:1 ATMOSPHERE_TYPE:0 REFLECTION_MODE:1 SSR_QU
 	AO_ENABLED !SSAO_ENABLED !SSS_SCATTER SSS_PCF_SAMPLES:12 !PARALLAX_ENABLED !BLOOM_ENABLED !BLOOM_SMOOTH \
 	!VL_ENABLED VL_SAMPLE_COUNT:15 VL_DITHER !VL_PARTICLES
 
-profile.LOW=CAMERA_EXPOSURE_MODE:1 ATMOSPHERE_TYPE:0 REFLECTION_MODE:2 SSR_QUALITY:0 WATER_FANCY WATER_REFRACTION:0 \
+profile.LOW=CAMERA_EXPOSURE_MODE:1 ATMOSPHERE_TYPE:0 REFLECTION_MODE:2 SSR_QUALITY:0 WATER_FANCY WATER_REFRACTION:1 \
 	SHADOW_TYPE:2 SHADOW_FILTER:0 shadowMapResolution:2048 shadowDistance:50 !SHADOW_EXCLUDE_ENTITIES !SHADOW_EXCLUDE_FOLIAGE SHADOW_PCF_SAMPLES:12 \
 	!RSM_ENABLED RSM_SCALE:2 RSM_SAMPLE_COUNT:35 RSM_FILTER_SIZE:0.8 RSM_INTENSITY:4 RSM_UPSCALE \
 	AO_ENABLED !SSAO_ENABLED !SSS_SCATTER SSS_PCF_SAMPLES:12 PARALLAX_ENABLED BLOOM_ENABLED !BLOOM_SMOOTH \