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Bugfix correcting tree fog lighting for cloudy days and low sun

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Thorsten Renk 2013-11-22 09:20:38 +02:00
parent 3a9ddfa5ab
commit d13d72b2f7
2 changed files with 15 additions and 3 deletions
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11
Effects/tree.eff
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@ -32,6 +32,7 @@
<dust_cover_factor><use>/environment/surface/dust-cover-factor</use></dust_cover_factor>
<fogtype><use>/sim/rendering/shaders/skydome</use></fogtype>
<fogstructure><use>/environment/fog-structure</use></fogstructure>
<cloud_self_shading><use>/environment/cloud-self-shading</use></cloud_self_shading>
<quality_level><use>/sim/rendering/shaders/landmass</use></quality_level>
<tquality_level><use>/sim/rendering/shaders/transition</use></tquality_level>
<wind_effects><use>/sim/rendering/shaders/wind-effects</use></wind_effects>
@ -104,6 +105,11 @@
<type>float</type>
<value><use>ground_scattering</use></value>
</uniform>
<uniform>
<name>cloud_self_shading</name>
<type>float</type>
<value><use>cloud_self_shading</use></value>
</uniform>
<uniform>
<name>terminator</name>
<type>float</type>
@ -246,6 +252,11 @@
<type>float</type>
<value><use>ground_scattering</use></value>
</uniform>
<uniform>
<name>cloud_self_shading</name>
<type>float</type>
<value><use>cloud_self_shading</use></value>
</uniform>
<uniform>
<name>terminator</name>
<type>float</type>

7
Shaders/tree-haze.frag
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@ -15,6 +15,7 @@ varying float yprime_alt;
uniform float visibility;
uniform float avisibility;
uniform float scattering;
uniform float cloud_self_shading;
uniform float terminator;
uniform float terrain_alt;
uniform float hazeLayerAltitude;
@ -131,7 +132,7 @@ void main()
mie_angle = gl_Color.a;
vec4 texel = texture2D(texture, gl_TexCoord[0].st);
float effective_scattering = min(scattering, cloud_self_shading);
if (quality_level > 3)
{
@ -238,14 +239,14 @@ if (visibility < avisibility)
{
transmission_arg = transmission_arg + (distance_in_layer/visibility);
// this combines the Weber-Fechner intensity
eqColorFactor = 1.0 - 0.1 * delta_zv/visibility - (1.0 -scattering);
eqColorFactor = 1.0 - 0.1 * delta_zv/visibility - (1.0 -effective_scattering);
}
else
{
transmission_arg = transmission_arg + (distance_in_layer/avisibility);
// this combines the Weber-Fechner intensity
eqColorFactor = 1.0 - 0.1 * delta_zv/avisibility - (1.0 -scattering);
eqColorFactor = 1.0 - 0.1 * delta_zv/avisibility - (1.0 -effective_scattering);
}