Water/WaterMesh: Improve realism. (#32681)

examples/jsm/objects/Water.js

@@ -197,10 +197,10 @@ class Water extends Mesh {
 					vec3 reflectionSample = vec3( texture2D( mirrorSampler, mirrorCoord.xy / mirrorCoord.w + distortion ) );
 
 					float theta = max( dot( eyeDirection, surfaceNormal ), 0.0 );
-					float rf0 = 0.3;
+					float rf0 = 0.02;
 					float reflectance = rf0 + ( 1.0 - rf0 ) * pow( ( 1.0 - theta ), 5.0 );
 					vec3 scatter = max( 0.0, dot( surfaceNormal, eyeDirection ) ) * waterColor;
-					vec3 albedo = mix( ( sunColor * diffuseLight * 0.3 + scatter ) * getShadowMask(), ( vec3( 0.1 ) + reflectionSample * 0.9 + reflectionSample * specularLight ), reflectance);
+					vec3 albedo = mix( ( sunColor * diffuseLight * 0.3 + scatter ) * getShadowMask(), reflectionSample + specularLight, reflectance );
 					vec3 outgoingLight = albedo;
 					gl_FragColor = vec4( outgoingLight, alpha );
 

examples/jsm/objects/WaterMesh.js

@@ -166,10 +166,10 @@ class WaterMesh extends Mesh {
 			this.add( mirrorSampler.target );
 
 			const theta = max( dot( eyeDirection, surfaceNormal ), 0.0 );
-			const rf0 = float( 0.3 );
+			const rf0 = float( 0.02 );
 			const reflectance = mul( pow( float( 1.0 ).sub( theta ), 5.0 ), float( 1.0 ).sub( rf0 ) ).add( rf0 );
 			const scatter = max( 0.0, dot( surfaceNormal, eyeDirection ) ).mul( this.waterColor );
-			const albedo = mix( this.sunColor.mul( diffuseLight ).mul( 0.3 ).add( scatter ), mirrorSampler.rgb.mul( specularLight ).add( mirrorSampler.rgb.mul( 0.9 ) ).add( vec3( 0.1 ) ), reflectance );
+			const albedo = mix( this.sunColor.mul( diffuseLight ).mul( 0.3 ).add( scatter ), mirrorSampler.rgb.add( specularLight ), reflectance );
 
 			return albedo;