Merge branch 'ripple-tweaks' into 'master'

Ripple shader tweaks

See merge request OpenMW/openmw!4351

files/shaders/compatibility/ripples_blobber.frag

@@ -20,7 +20,7 @@ void main()
     for (int i = 0; i < positionCount; ++i)
     {
         float wavesize = wavesizeMultiplier * positions[i].z;
-        float displace = clamp(2.0 * abs(length((positions[i].xy + offset) - gl_FragCoord.xy) / wavesize - 1.0), 0.0, 1.0);
+        float displace = clamp(0.2 * abs(length((positions[i].xy + offset) - gl_FragCoord.xy) / wavesize - 1.0) + 0.8, 0.0, 1.0);
         color.rg = mix(vec2(-1.0), color.rg, displace);
     }
 

files/shaders/core/ripples_blobber.comp

@@ -23,7 +23,7 @@ void main()
     for (int i = 0; i < positionCount; ++i)
     {
         float wavesize = wavesizeMultiplier * positions[i].z;
-        float displace = clamp(2.0 * abs(length((positions[i].xy + offset) - vec2(gl_GlobalInvocationID.xy)) / wavesize - 1.0), 0.0, 1.0);
+        float displace = clamp(0.2 * abs(length((positions[i].xy + offset) - vec2(gl_GlobalInvocationID.xy)) / wavesize - 1.0) + 0.8, 0.0, 1.0);
         color.rg = mix(vec2(-1.0), color.rg, displace);
     }
 

files/shaders/lib/water/ripples.glsl

@@ -11,17 +11,17 @@ vec4 applySprings(in vec4 samplerData, in vec4 n, in vec4 n2)
     vec4 storage = vec4(0.0, samplerData.r, 0.0, 0.0);
 
     // Tweak to look most like water, not a physically accurate simulation
-    const float a = 0.14;
-    const float udamp = 0.02;
-    const float vdamp = 0.02;
+    const float a = 0.28;
+    const float udamp = 0.04;
+    const float vdamp = 0.04;
 
     // Apply 2d wave equation with dampening
     // Continous impulse needed to maintain simulation, otherwise ripples will fade
     float nsum = n.x + n.y + n.z + n.w;
     storage.r = a * nsum + ((2.0 - udamp - vdamp) - 4.0 * a) * samplerData.r - (1.0 - vdamp) * samplerData.g;
 
     // Calculate normal and store in blue-alpha channel
-    storage.ba = 2.0 * (n.xy - n.zw) + 0.5 * (n2.xy - n2.zw);
+    storage.ba = 2.0 * (n.xz - n.yw) + 0.5 * (n2.xz - n2.yw);
 
     return storage;
 }