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Code Issues Releases Wiki Activity

Remove underwater fog radialization remnants

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The fog is now view-independent so this is not something to concern ourselves as with anymore
This commit is contained in:
Alexei Kotov 2024-03-31 23:08:47 +03:00
parent 3380b806de
commit fbe84f4668
1 changed files with 10 additions and 15 deletions
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25
files/shaders/compatibility/water.frag
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@ -152,23 +152,12 @@ void main(void)
float ior = (cameraPos.z>0.0)?(1.333/1.0):(1.0/1.333); // air to water; water to air
float fresnel = clamp(fresnel_dielectric(vVec, normal, ior), 0.0, 1.0);
float radialise = 1.0;
#if @radialFog
float radialDepth = distance(position.xyz, cameraPos);
// TODO: Figure out how to properly radialise refraction depth and thus underwater fog
// while avoiding oddities when the water plane is close to the clipping plane
// radialise = radialDepth / linearDepth;
#else
float radialDepth = 0.0;
#endif
vec2 screenCoordsOffset = normal.xy * REFL_BUMP;
#if REFRACTION
float depthSample = linearizeDepth(sampleRefractionDepthMap(screenCoords), near, far) * radialise;
float surfaceDepth = linearizeDepth(gl_FragCoord.z, near, far) * radialise;
float depthSample = linearizeDepth(sampleRefractionDepthMap(screenCoords), near, far);
float surfaceDepth = linearizeDepth(gl_FragCoord.z, near, far);
float realWaterDepth = depthSample - surfaceDepth; // undistorted water depth in view direction, independent of frustum
float depthSampleDistorted = linearizeDepth(sampleRefractionDepthMap(screenCoords - screenCoordsOffset), near, far) * radialise;
float depthSampleDistorted = linearizeDepth(sampleRefractionDepthMap(screenCoords - screenCoordsOffset), near, far);
float waterDepthDistorted = max(depthSampleDistorted - surfaceDepth, 0.0);
screenCoordsOffset *= clamp(realWaterDepth / BUMP_SUPPRESS_DEPTH,0,1);
#endif
@ -196,7 +185,7 @@ void main(void)
if (cameraPos.z > 0.0 && realWaterDepth <= VISIBILITY_DEPTH && waterDepthDistorted > VISIBILITY_DEPTH)
screenCoordsOffset = vec2(0.0);
depthSampleDistorted = linearizeDepth(sampleRefractionDepthMap(screenCoords - screenCoordsOffset), near, far) * radialise;
depthSampleDistorted = linearizeDepth(sampleRefractionDepthMap(screenCoords - screenCoordsOffset), near, far);
waterDepthDistorted = max(depthSampleDistorted - surfaceDepth, 0.0);
// fade to realWaterDepth at a distance to compensate for physically inaccurate depth calculation
@ -248,6 +237,12 @@ void main(void)
gl_FragData[0].w = clamp(fresnel*6.0 + specular * sunSpec.a, 0.0, 1.0); //clamp(fresnel*2.0 + specular * gl_LightSource[0].specular.a, 0.0, 1.0);
#endif
#if @radialFog
float radialDepth = distance(position.xyz, cameraPos);
#else
float radialDepth = 0.0;
#endif
gl_FragData[0] = applyFogAtDist(gl_FragData[0], radialDepth, linearDepth, far);
#if !@disableNormals