mirror/OpenMW
1
0
Fork 0
mirror of https://gitlab.com/OpenMW/openmw.git synced 2025-02-22 03:40:49 +00:00
Code Issues Projects Releases Wiki Activity

Merge branch 'wobblywater' into 'master'

Browse Source 
Wobbly Water: make shorelines wavy when refraction is enabled

See merge request OpenMW/openmw!673
This commit is contained in:
psi29a 2021-07-25 21:35:52 +00:00
commit a7881b9196
1 changed files with 11 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
files/shaders/water_fragment.glsl
View File

@ -243,6 +243,7 @@ void main(void)
#if REFRACTION
// refraction
vec3 refraction = texture2D(refractionMap, screenCoords - screenCoordsOffset).rgb;
vec3 rawRefraction = refraction;
// brighten up the refraction underwater
if (cameraPos.z < 0.0)
@ -261,6 +262,16 @@ void main(void)
float lightScatter = clamp(dot(lVec,lNormal)*0.7+0.3, 0.0, 1.0) * clamp(dot(lR, vVec)*2.0-1.2, 0.0, 1.0) * SCATTER_AMOUNT * sunFade * clamp(1.0-exp(-sunHeight), 0.0, 1.0);
gl_FragData[0].xyz = mix( mix(refraction, scatterColour, lightScatter), reflection, fresnel) + specular * sunSpec.xyz + vec3(rainRipple.w) * 0.2;
gl_FragData[0].w = 1.0;
// wobbly water: hard-fade into refraction texture at extremely low depth, with a wobble based on normal mapping
vec3 normalShoreRippleRain = texture2D(normalMap,normalCoords(UV, 2.0, 2.7, -1.0*waterTimer, 0.05, 0.1, normal3)).rgb - 0.5
+ texture2D(normalMap,normalCoords(UV, 2.0, 2.7, waterTimer, 0.04, -0.13, normal4)).rgb - 0.5;
float verticalWaterDepth = realWaterDepth * mix(abs(vVec.z), 1.0, 0.2); // an estimate
float shoreOffset = verticalWaterDepth - (normal2.r + mix(0, normalShoreRippleRain.r, rainIntensity) + 0.15)*8;
float fuzzFactor = min(1.0, 1000.0/surfaceDepth) * mix(abs(vVec.z), 1, 0.2);
shoreOffset *= fuzzFactor;
shoreOffset = clamp(shoreOffset, 0, 1);
gl_FragData[0].xyz = mix(rawRefraction, gl_FragData[0].xyz, shoreOffset);
#else
gl_FragData[0].xyz = mix(reflection, waterColor, (1.0-fresnel)*0.5) + specular * sunSpec.xyz + vec3(rainRipple.w) * 0.7;
gl_FragData[0].w = clamp(fresnel*6.0 + specular * sunSpec.w, 0.0, 1.0); //clamp(fresnel*2.0 + specular * gl_LightSource[0].specular.w, 0.0, 1.0);