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Diffstat (limited to 'doc/classes/Environment.xml')
| -rw-r--r-- | doc/classes/Environment.xml | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/doc/classes/Environment.xml b/doc/classes/Environment.xml index 695f2cbc66..34a639d2de 100644 --- a/doc/classes/Environment.xml +++ b/doc/classes/Environment.xml @@ -86,7 +86,7 @@ This is useful to simulate [url=https://en.wikipedia.org/wiki/Aerial_perspective]aerial perspective[/url] in large scenes with low density fog. However, it is not very useful for high-density fog, as the sky will shine through. When set to [code]1.0[/code], the fog color comes completely from the [Sky]. If set to [code]0.0[/code], aerial perspective is disabled. </member> <member name="fog_density" type="float" setter="set_fog_density" getter="get_fog_density" default="0.01"> - The exponential fog density to use. Higher values result in a more dense fog. + The [i]exponential[/i] fog density to use. Higher values result in a more dense fog. Fog rendering is exponential as in real life. </member> <member name="fog_enabled" type="bool" setter="set_fog_enabled" getter="is_fog_enabled" default="false"> If [code]true[/code], fog effects are enabled. @@ -292,13 +292,15 @@ The [Color] of the volumetric fog when interacting with lights. Mist and fog have an albedo close to [code]Color(1, 1, 1, 1)[/code] while smoke has a darker albedo. </member> <member name="volumetric_fog_ambient_inject" type="float" setter="set_volumetric_fog_ambient_inject" getter="get_volumetric_fog_ambient_inject" default="0.0"> - Scales the strength of ambient light used in the volumetric fog. A value of [code]0[/code] means that ambient light will not impact the volumetric fog. + Scales the strength of ambient light used in the volumetric fog. A value of [code]0.0[/code] means that ambient light will not impact the volumetric fog. [member volumetric_fog_ambient_inject] has a small performance cost when set above [code]0.0[/code]. + [b]Note:[/b] This has no visible effect if [member volumetric_fog_density] is [code]0.0[/code] or if [member volumetric_fog_albedo] is a fully black color. </member> <member name="volumetric_fog_anisotropy" type="float" setter="set_volumetric_fog_anisotropy" getter="get_volumetric_fog_anisotropy" default="0.2"> - The direction of scattered light as it goes through the volumetric fog. A value close [code]1[/code] means almost all light is scattered forward. A value close to [code]0[/code] means light is scattered equally in all directions. A value close to [code]-1[/code] means light is scattered mostly backward. Fog and mist scatter light slightly forward, while smoke scatters light equally in all directions. + The direction of scattered light as it goes through the volumetric fog. A value close to [code]1.0[/code] means almost all light is scattered forward. A value close to [code]0.0[/code] means light is scattered equally in all directions. A value close to [code]-1.0[/code] means light is scattered mostly backward. Fog and mist scatter light slightly forward, while smoke scatters light equally in all directions. </member> <member name="volumetric_fog_density" type="float" setter="set_volumetric_fog_density" getter="get_volumetric_fog_density" default="0.05"> - The base density of the volumetric fog. Set this to the lowest density you want to have globally. + The base [i]exponential[/i] density of the volumetric fog. Set this to the lowest density you want to have globally. [FogVolume]s can be used to add to or subtract from this density in specific areas. Fog rendering is exponential as in real life. + A value of [code]0.0[/code] disables global volumetric fog while allowing [FogVolume]s to display volumetric fog in specific areas. </member> <member name="volumetric_fog_detail_spread" type="float" setter="set_volumetric_fog_detail_spread" getter="get_volumetric_fog_detail_spread" default="2.0"> The distribution of size down the length of the froxel buffer. A higher value compresses the froxels closer to the camera and places more detail closer to the camera. @@ -313,20 +315,22 @@ Enables the volumetric fog effect. Volumetric fog uses a screen-aligned froxel buffer to calculate accurate volumetric scattering in the short to medium range. Volumetric fog interacts with [FogVolume]s and lights to calculate localized and global fog. Volumetric fog uses a PBR single-scattering model based on extinction, scattering, and emission which it exposes to users as density, albedo, and emission. </member> <member name="volumetric_fog_gi_inject" type="float" setter="set_volumetric_fog_gi_inject" getter="get_volumetric_fog_gi_inject" default="1.0"> - Scales the strength of Global Illumination used in the volumetric fog. A value of [code]0.0[/code] means that Global Illumination will not impact the volumetric fog. + Scales the strength of Global Illumination used in the volumetric fog's albedo color. A value of [code]0.0[/code] means that Global Illumination will not impact the volumetric fog. [member volumetric_fog_gi_inject] has a small performance cost when set above [code]0.0[/code]. + [b]Note:[/b] This has no visible effect if [member volumetric_fog_density] is [code]0.0[/code] or if [member volumetric_fog_albedo] is a fully black color. [b]Note:[/b] Only [VoxelGI] and SDFGI ([member Environment.sdfgi_enabled]) are taken into account when using [member volumetric_fog_gi_inject]. Global illumination from [LightmapGI], [ReflectionProbe] and SSIL (see [member ssil_enabled]) will be ignored by volumetric fog. </member> <member name="volumetric_fog_length" type="float" setter="set_volumetric_fog_length" getter="get_volumetric_fog_length" default="64.0"> - The distance over which the volumetric fog is computed. Increase to compute fog over a greater range, decrease to add more detail when a long range is not needed. For best quality fog, keep this as low as possible. + The distance over which the volumetric fog is computed. Increase to compute fog over a greater range, decrease to add more detail when a long range is not needed. For best quality fog, keep this as low as possible. See also [member ProjectSettings.rendering/environment/volumetric_fog/volume_depth]. </member> <member name="volumetric_fog_sky_affect" type="float" setter="set_volumetric_fog_sky_affect" getter="get_volumetric_fog_sky_affect" default="1.0"> The factor to use when affecting the sky with volumetric fog. [code]1.0[/code] means that volumetric fog can fully obscure the sky. Lower values reduce the impact of volumetric fog on sky rendering, with [code]0.0[/code] not affecting sky rendering at all. + [b]Note:[/b] [member volumetric_fog_sky_affect] also affects [FogVolume]s, even if [member volumetric_fog_density] is [code]0.0[/code]. If you notice [FogVolume]s are disappearing when looking towards the sky, set [member volumetric_fog_sky_affect] to [code]1.0[/code]. </member> <member name="volumetric_fog_temporal_reprojection_amount" type="float" setter="set_volumetric_fog_temporal_reprojection_amount" getter="get_volumetric_fog_temporal_reprojection_amount" default="0.9"> The amount by which to blend the last frame with the current frame. A higher number results in smoother volumetric fog, but makes "ghosting" much worse. A lower value reduces ghosting but can result in the per-frame temporal jitter becoming visible. </member> <member name="volumetric_fog_temporal_reprojection_enabled" type="bool" setter="set_volumetric_fog_temporal_reprojection_enabled" getter="is_volumetric_fog_temporal_reprojection_enabled" default="true"> - Enables temporal reprojection in the volumetric fog. Temporal reprojection blends the current frame's volumetric fog with the last frame's volumetric fog to smooth out jagged edges. The performance cost is minimal, however it does lead to moving [FogVolume]s and [Light3D]s "ghosting" and leaving a trail behind them. When temporal reprojection is enabled, try to avoid moving [FogVolume]s or [Light3D]s too fast. + Enables temporal reprojection in the volumetric fog. Temporal reprojection blends the current frame's volumetric fog with the last frame's volumetric fog to smooth out jagged edges. The performance cost is minimal; however, it leads to moving [FogVolume]s and [Light3D]s "ghosting" and leaving a trail behind them. When temporal reprojection is enabled, try to avoid moving [FogVolume]s or [Light3D]s too fast. Short-lived dynamic lighting effects should have [member Light3D.light_volumetric_fog_energy] set to [code]0.0[/code] to avoid ghosting. </member> </members> <constants> |