Backups/Bliss-Shader
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Clean specular.glsl and make it easier to use for myself across dimension. make grass brighter in ambient light.

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Xonk
2023-07-25 22:48:08 -04:00
parent e5a956ccb0
commit e74823a918
19 changed files with 585 additions and 766 deletions
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16
shaders/lib/ROBOBO_sky.glsl
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@ -87,7 +87,7 @@ vec3 sky_opticalDepth(vec3 position, vec3 direction, const float steps) {
}
vec3 sky_transmittance(vec3 position, vec3 direction, const float steps) {
return exp2(-sky_opticalDepth(position, direction, steps) * rLOG2);
return exp(-sky_opticalDepth(position, direction, steps) * rLOG2);
}
@ -95,7 +95,7 @@ vec3 sky_transmittance(vec3 position, vec3 direction, const float steps) {
vec3 calculateAtmosphere(vec3 background, vec3 viewVector, vec3 upVector, vec3 sunVector, vec3 moonVector, out vec2 pid, out vec3 transmittance, const int iSteps, float noise) {
const int jSteps = 4;
vec3 sunvec2 = sunVector;
vec3 viewPosition = (sky_planetRadius + eyeAltitude) * upVector;
@ -111,7 +111,9 @@ vec3 calculateAtmosphere(vec3 background, vec3 viewVector, vec3 upVector, vec3 s
vec3 increment = viewVector * stepSize;
vec3 position = viewVector * sd.x + viewPosition;
position += increment * (0.34*noise);
vec2 phaseSun = sky_phase(dot(viewVector, sunVector ), sky_mieg) ;
vec2 phaseSun = (pow(sky_phase(dot(viewVector, sunVector ), 0.6)*3, vec2(2)) + sky_phase(dot(viewVector, sunVector ), 0.8))/2;
// phaseSun = sky_phase(dot(viewVector, sunVector ), 0.8);
vec2 phaseMoon = sky_phase(dot(viewVector, moonVector), sky_mieg);
vec3 scatteringSun = vec3(0.0);
@ -123,8 +125,8 @@ vec3 calculateAtmosphere(vec3 background, vec3 viewVector, vec3 upVector, vec3 s
// float low_sun = clamp(pow(1.0-sunVector.y,10.0) + 1.0,1.0, 2.0);
float high_sun = clamp(pow(sunVector.y+0.6,5),0.0,1.0) * 3.0; // make sunrise less blue, and allow sunset to be bluer
float low_sun = clamp(((1.0-abs(sunVector.y))*3.) - high_sun,1.0,2.0) ;
float high_sun = clamp(pow(sunvec2.y+0.6,5),0.0,1.0) * 3.0; // make sunrise less blue, and allow sunset to be bluer
float low_sun = clamp(((1.0-abs(sunvec2.y))*3.) - high_sun,1.0,2.0) ;
for (int i = 0; i < iSteps; ++i, position += increment) {
vec3 density = sky_density(length(position));
@ -139,12 +141,12 @@ vec3 calculateAtmosphere(vec3 background, vec3 viewVector, vec3 upVector, vec3 s
scatteringSun += sky_coefficientsScattering * (stepAirmass.xy * phaseSun ) * stepScatteringVisible * sky_transmittance(position, sunVector*0.5+0.1, jSteps) ;
scatteringMoon += sky_coefficientsScattering * (stepAirmass.xy * phaseMoon) * stepScatteringVisible * sky_transmittance(position, moonVector, jSteps);
// Nice way to fake multiple scattering.
scatteringAmbient += sky_coefficientsScattering * stepAirmass.xy * (stepScatteringVisible * low_sun);
scatteringAmbient += sky_coefficientsScattering * stepAirmass.xy * stepScatteringVisible * low_sun;
transmittance *= stepTransmittance ;
}
vec3 scattering = scatteringSun * sunColorBase + (scatteringAmbient) * background + scatteringMoon*moonColorBase ;
vec3 scattering = scatteringSun * sunColorBase + scatteringAmbient * background + scatteringMoon*moonColorBase ;
// scattering = vec3(0,high_sun*255.,0);
return scattering;
}