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Add Environment properties to control fog rendering on background sky

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Values lower than 1.0 can be used to make the fog rendering not fully
obstruct the sky. This can be desired when using fog as a purely
atmospheric effect, without intending to use fog for open world fog
fading.

When set to 0.0, fog rendering behavior will be similar to Godot 3.x
where sky rendering was never affected by fog.
This commit is contained in:
Hugo Locurcio
2022-02-23 23:54:06 +01:00
parent de5f13e935
commit 699e9f7966
16 changed files with 144 additions and 50 deletions
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18
servers/rendering/storage/environment_storage.cpp
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@@ -244,7 +244,7 @@ uint64_t RendererEnvironmentStorage::environment_get_auto_exposure_version(RID p
// Fog
void RendererEnvironmentStorage::environment_set_fog(RID p_env, bool p_enable, const Color &p_light_color, float p_light_energy, float p_sun_scatter, float p_density, float p_height, float p_height_density, float p_fog_aerial_perspective) {
void RendererEnvironmentStorage::environment_set_fog(RID p_env, bool p_enable, const Color &p_light_color, float p_light_energy, float p_sun_scatter, float p_density, float p_height, float p_height_density, float p_fog_aerial_perspective, float p_sky_affect) {
Environment *env = environment_owner.get_or_null(p_env);
ERR_FAIL_COND(!env);
env->fog_enabled = p_enable;
@@ -255,6 +255,7 @@ void RendererEnvironmentStorage::environment_set_fog(RID p_env, bool p_enable, c
env->fog_height = p_height;
env->fog_height_density = p_height_density;
env->fog_aerial_perspective = p_fog_aerial_perspective;
env->fog_sky_affect = p_sky_affect;
}
bool RendererEnvironmentStorage::environment_get_fog_enabled(RID p_env) const {
@@ -305,9 +306,15 @@ float RendererEnvironmentStorage::environment_get_fog_aerial_perspective(RID p_e
return env->fog_aerial_perspective;
}
float RendererEnvironmentStorage::environment_get_fog_sky_affect(RID p_env) const {
Environment *env = environment_owner.get_or_null(p_env);
ERR_FAIL_COND_V(!env, 0.0);
return env->fog_sky_affect;
}
// Volumetric Fog
void RendererEnvironmentStorage::environment_set_volumetric_fog(RID p_env, bool p_enable, float p_density, const Color &p_albedo, const Color &p_emission, float p_emission_energy, float p_anisotropy, float p_length, float p_detail_spread, float p_gi_inject, bool p_temporal_reprojection, float p_temporal_reprojection_amount, float p_ambient_inject) {
void RendererEnvironmentStorage::environment_set_volumetric_fog(RID p_env, bool p_enable, float p_density, const Color &p_albedo, const Color &p_emission, float p_emission_energy, float p_anisotropy, float p_length, float p_detail_spread, float p_gi_inject, bool p_temporal_reprojection, float p_temporal_reprojection_amount, float p_ambient_inject, float p_sky_affect) {
Environment *env = environment_owner.get_or_null(p_env);
ERR_FAIL_COND(!env);
env->volumetric_fog_enabled = p_enable;
@@ -322,6 +329,7 @@ void RendererEnvironmentStorage::environment_set_volumetric_fog(RID p_env, bool
env->volumetric_fog_temporal_reprojection = p_temporal_reprojection;
env->volumetric_fog_temporal_reprojection_amount = p_temporal_reprojection_amount;
env->volumetric_fog_ambient_inject = p_ambient_inject;
env->volumetric_fog_sky_affect = p_sky_affect;
}
bool RendererEnvironmentStorage::environment_get_volumetric_fog_enabled(RID p_env) const {
@@ -378,6 +386,12 @@ float RendererEnvironmentStorage::environment_get_volumetric_fog_gi_inject(RID p
return env->volumetric_fog_gi_inject;
}
float RendererEnvironmentStorage::environment_get_volumetric_fog_sky_affect(RID p_env) const {
Environment *env = environment_owner.get_or_null(p_env);
ERR_FAIL_COND_V(!env, 0.0);
return env->volumetric_fog_sky_affect;
}
bool RendererEnvironmentStorage::environment_get_volumetric_fog_temporal_reprojection(RID p_env) const {
Environment *env = environment_owner.get_or_null(p_env);
ERR_FAIL_COND_V(!env, true);