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add horizon fadeout for fog effects #25

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add horizon fadeout for fog effects #25

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86cb7d5
add horizon fadeout for fog effects
adQuid Aug 16, 2023
81c51fc
rework fadeout strategy
adQuid Aug 18, 2023
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24 changes: 15 additions & 9 deletions shaders/clouds.omwfx
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Original file line number Diff line number Diff line change
Expand Up @@ -669,16 +669,22 @@ fragment main {
col.rgb = mix(mix(omw.sunColor.rgb, normalize(omw.sunColor.rgb), 0.75) * 0.4, col.rgb, 1.0 / (1.0 + max_dist * 0.005 * pow(interior_mist, 2)));
}
} else {
if (max_dist >= HORIZON * 0.9) {
if (replace_skybox) {
// Darken the sky above
col.rgb = sky_color * mix(vec3(0.5, 0.7, 0.9), vec3(1.0), vec3(1.0 - dir.z));
}
if (better_sun) {
col.rgb += sun_light(dir);
}
if (max_dist >= HORIZON * 0.9) {
if (replace_skybox) {
// Darken the sky above
col.rgb = sky_color * mix(vec3(0.5, 0.7, 0.9), vec3(1.0), vec3(1.0 - dir.z));
}
col = apply_fog(col, wpos, dir, max_dist, dyn_clouds, dyn_mist);
if (better_sun) {
col.rgb += sun_light(dir);
}
}

if (max_dist < HORIZON * 0.9){
col = apply_fog(col, wpos, dir, max_dist, dyn_clouds, dyn_mist);
} else if (dir.z > 0){
float fogFadeIn = clamp(dir.z * 5.0, 0, 1);
col = apply_fog(col, wpos, dir, max_dist, dyn_clouds, dyn_mist) * fogFadeIn + (col * (1-fogFadeIn));
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FWIW I think this would be clearer as

col = mix(col, apply_fog(...), fogFadeIn);

}
}

if (point_glow_enabled && point_glow_intensity > 0.0) {
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