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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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6
servers/rendering/renderer_scene_render.h
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@@ -131,18 +131,19 @@ public:
uint64_t environment_get_auto_exposure_version(RID p_env) const;
// Fog
void 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_aerial_perspective);
void 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_aerial_perspective, float p_sky_affect);
bool environment_get_fog_enabled(RID p_env) const;
Color environment_get_fog_light_color(RID p_env) const;
float environment_get_fog_light_energy(RID p_env) const;
float environment_get_fog_sun_scatter(RID p_env) const;
float environment_get_fog_density(RID p_env) const;
float environment_get_fog_sky_affect(RID p_env) const;
float environment_get_fog_height(RID p_env) const;
float environment_get_fog_height_density(RID p_env) const;
float environment_get_fog_aerial_perspective(RID p_env) const;
// Volumetric Fog
void 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 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);
bool environment_get_volumetric_fog_enabled(RID p_env) const;
float environment_get_volumetric_fog_density(RID p_env) const;
Color environment_get_volumetric_fog_scattering(RID p_env) const;
@@ -152,6 +153,7 @@ public:
float environment_get_volumetric_fog_length(RID p_env) const;
float environment_get_volumetric_fog_detail_spread(RID p_env) const;
float environment_get_volumetric_fog_gi_inject(RID p_env) const;
float environment_get_volumetric_fog_sky_affect(RID p_env) const;
bool environment_get_volumetric_fog_temporal_reprojection(RID p_env) const;
float environment_get_volumetric_fog_temporal_reprojection_amount(RID p_env) const;
float environment_get_volumetric_fog_ambient_inject(RID p_env) const;