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blend altostratus clouds correct no matter their position relative to cumulus clouds

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Xonk 2023-12-31 20:46:30 -05:00
parent ce844138d8
commit a7f0ab160a
1 changed files with 5 additions and 3 deletions
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8
shaders/lib/volumetricClouds.glsl
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@ -283,7 +283,8 @@ vec4 renderClouds(
isAlto = true;
float startFlip_alto = mix(max(cameraPosition.y - AltostratusHeight,0.0), max(AltostratusHeight - cameraPosition.y,0), clamp(dV_view.y,0,1));
float signFlip = mix(-1.0, 1.0, clamp(cameraPosition.y - AltostratusHeight,0.0,1.0));
float signFlip = mix(-1.0, 1.0, clamp(cameraPosition.y - AltostratusHeight,0.0,1.0));
bool is_alto_below_cumulus = AltostratusHeight < MinHeight_0;
// blend alt clouds at different stages so it looks correct when flying above or below it, in relation to the cumulus clouds.
float altostratus = 0; vec3 Lighting_alto = vec3(0);
@ -305,7 +306,8 @@ vec4 renderClouds(
}
}
if(signFlip > 0){
// if(signFlip > 0 || (signFlip < 0 && is_alto_below_cumulus)){
if((signFlip > 0 && !is_alto_below_cumulus) || (signFlip < 0 && is_alto_below_cumulus)){
color += max(Lighting_alto - Lighting_alto*exp(-mult*altostratus),0.0) * total_extinction;
total_extinction *= max(exp(-mult*altostratus),0.0);
}
@ -364,7 +366,7 @@ vec4 renderClouds(
#endif // Cumulus
#ifdef Altostratus
if(signFlip < 0){
if((signFlip < 0 && !is_alto_below_cumulus) || (signFlip > 0 && is_alto_below_cumulus)){
color += max(Lighting_alto - Lighting_alto*exp(-mult*altostratus),0.0) * total_extinction;
total_extinction *= max(exp(-mult*altostratus),0.0);
}