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fix silhouettes around objects above the water

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This commit is contained in:
scrawl 2012-08-15 19:29:00 +02:00
parent 97c45455fd
commit 4ae0a5c02e
1 changed files with 7 additions and 4 deletions
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11
files/materials/water.shader
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@ -118,7 +118,6 @@
#define WAVE_CHOPPYNESS 0.15 // wave choppyness #define WAVE_CHOPPYNESS 0.15 // wave choppyness
#define WAVE_SCALE 75 // overall wave scale #define WAVE_SCALE 75 // overall wave scale
#define ABBERATION 0.001 // chromatic abberation amount
#define BUMP 1.5 // overall water surface bumpiness #define BUMP 1.5 // overall water surface bumpiness
#define REFL_BUMP 0.08 // reflection distortion amount #define REFL_BUMP 0.08 // reflection distortion amount
#define REFR_BUMP 0.06 // refraction distortion amount #define REFR_BUMP 0.06 // refraction distortion amount
@ -256,11 +255,15 @@
// refraction // refraction
float3 R = reflect(vVec, normal); float3 R = reflect(vVec, normal);
// check the depth at the refracted coords, and don't do any normal distortion for the refraction if the object to refract
// is actually above the water (objectDepth < waterDepth)
// this solves silhouettes around objects above the water
float refractDepth = shSample(depthMap, screenCoords-(shoreFade * normal.xz*REFR_BUMP)).x * far - depthPassthrough;
float doRefraction = (refractDepth < 0) ? 0.f : 1.f;
float3 refraction = float3(0,0,0); float3 refraction = float3(0,0,0);
refraction.r = shSample(refractionMap, (screenCoords-(shoreFade * normal.xz*REFR_BUMP))*1.0).r; refraction.rgb = shSample(refractionMap, (screenCoords-(shoreFade * normal.xz*REFR_BUMP * doRefraction))*1.0).rgb;
refraction.g = shSample(refractionMap, (screenCoords-(shoreFade * normal.xz*REFR_BUMP))*1.0-(R.xy*ABBERATION)).g;
refraction.b = shSample(refractionMap, (screenCoords-(shoreFade * normal.xz*REFR_BUMP))*1.0-(R.xy*ABBERATION*2.0)).b;
// brighten up the refraction underwater // brighten up the refraction underwater
refraction = (cameraPos.y < 0) ? shSaturate(refraction * 1.5) : refraction; refraction = (cameraPos.y < 0) ? shSaturate(refraction * 1.5) : refraction;