Resource for environment nodes (like [WorldEnvironment3D]) that define multiple environment operations (such as background [Sky] or [Color], ambient light, fog, depth-of-field...). These parameters affect the final render of the scene. The order of these operations is:
If the target [Viewport] is set to "2D Without Sampling", all post-processing effects will be unavailable. With "3D Without Effects", the following options will be unavailable:
- Ssao
- Ss Reflections
This can be configured for the root Viewport with [member ProjectSettings.rendering/quality/intended_usage/framebuffer_allocation], or for specific Viewports via the [member Viewport.usage] property.
Note that [member ProjectSettings.rendering/quality/intended_usage/framebuffer_allocation] has a mobile platform override to use "3D Without Effects" by default. It improves the performance on mobile devices, but at the same time affects the screen display on mobile devices.
Returns [code]true[/code] if the glow level [code]idx[/code] is specified, [code]false[/code] otherwise.
</description>
</method>
<methodname="set_glow_level">
<returntype="void"/>
<argumentindex="0"name="idx"type="int"/>
<argumentindex="1"name="enabled"type="bool"/>
<description>
Enables or disables the glow level at index [code]idx[/code]. Each level relies on the previous level. This means that enabling higher glow levels will slow down the glow effect rendering, even if previous levels aren't enabled.
Applies the provided [Texture] resource to affect the global color aspect of the rendered scene. Effective only if [code]adjustment_enabled[/code] is [code]true[/code].
If [code]true[/code], enables the [code]adjustment_*[/code] properties provided by this resource. If [code]false[/code], modifications to the [code]adjustment_*[/code] properties will have no effect on the rendered scene.
Defines the amount of light that the sky brings on the scene. A value of [code]0.0[/code] means that the sky's light emission has no effect on the scene illumination, thus all ambient illumination is provided by the ambient light. On the contrary, a value of [code]1.0[/code] means that [i]all[/i] the light that affects the scene is provided by the sky, thus the ambient light parameter has no effect on the scene.
[b]Note:[/b] [member ambient_light_sky_contribution] is internally clamped between [code]0.0[/code] and [code]1.0[/code] (inclusive).
If [code]true[/code], enables the tonemapping auto exposure mode of the scene renderer. If [code]true[/code], the renderer will automatically determine the exposure setting to adapt to the scene's illumination and the observed light.
If [code]true[/code], fog effects are enabled. [member fog_height_enabled] and/or [member fog_depth_enabled] must be set to [code]true[/code] to actually display fog.
If [code]true[/code], the height fog effect is enabled. When enabled, fog will appear in a defined height range, regardless of the distance from the camera. This can be used to simulate "deep water" effects with a lower performance cost compared to a dedicated shader.
The Y coordinate where the height fog will be the most intense. If this value is greater than [member fog_height_min], fog will be displayed from bottom to top. Otherwise, it will be displayed from top to bottom.
The Y coordinate where the height fog will be the least intense. If this value is greater than [member fog_height_max], fog will be displayed from top to bottom. Otherwise, it will be displayed from bottom to top.
The intensity of the depth fog color transition when looking towards the sun. The sun's direction is determined automatically using the DirectionalLight node in the scene.
[b]Note:[/b] Only effective if [member ProjectSettings.rendering/quality/intended_usage/framebuffer_allocation] is [b]3D[/b] ([i]not[/i] [b]3D Without Effects[/b]). On mobile, [member ProjectSettings.rendering/quality/intended_usage/framebuffer_allocation] defaults to [b]3D Without Effects[/b] by default, so its [code].mobile[/code] override needs to be changed to [b]3D[/b].
[b]Note:[/b] When using GLES3 on mobile, HDR rendering is disabled by default for performance reasons. This means glow will only be visible if [member glow_hdr_threshold] is decreased below [code]1.0[/code] or if [member glow_bloom] is increased above [code]0.0[/code]. Also consider increasing [member glow_intensity] to [code]1.5[/code]. If you want glow to behave on mobile like it does on desktop (at a performance cost), enable [member ProjectSettings.rendering/quality/depth/hdr]'s [code].mobile[/code] override.
The lower threshold of the HDR glow. When using the GLES2 renderer (which doesn't support HDR), this needs to be below [code]1.0[/code] for glow to be visible. A value of [code]0.9[/code] works well in this case.
Takes more samples during downsample pass of glow. This ensures that single pixels are captured by glow which makes the glow look smoother and more stable during movement. However, it is very expensive and makes the glow post process take twice as long.
If [code]true[/code], screen-space reflections are enabled. Screen-space reflections are more accurate than reflections from [GIProbe]s or [ReflectionProbe]s, but are slower and can't reflect surfaces occluded by others.
The screen-space ambient occlusion intensity on materials that have an AO texture defined. Values higher than [code]0[/code] will make the SSAO effect visible in areas darkened by AO textures.
If [code]true[/code], the screen-space ambient occlusion effect is enabled. This darkens objects' corners and cavities to simulate ambient light not reaching the entire object as in real life. This works well for small, dynamic objects, but baked lighting or ambient occlusion textures will do a better job at displaying ambient occlusion on large static objects. This is a costly effect and should be disabled first when running into performance issues.
The screen-space ambient occlusion intensity in direct light. In real life, ambient occlusion only applies to indirect light, which means its effects can't be seen in direct light. Values higher than [code]0[/code] will make the SSAO effect visible in direct light.
The secondary screen-space ambient occlusion radius. If set to a value higher than [code]0[/code], enables the secondary screen-space ambient occlusion effect which can be used to improve the effect's appearance (at the cost of performance).
The tonemapping mode to use. Tonemapping is the process that "converts" HDR values to be suitable for rendering on a SDR display. (Godot doesn't support rendering on HDR displays yet.)
The white reference value for tonemapping. Only effective if the [member tonemap_mode] isn't set to [constant TONE_MAPPER_LINEAR].
</member>
</members>
<constants>
<constantname="BG_KEEP"value="5"enum="BGMode">
Keeps on screen every pixel drawn in the background. Only select this mode if you really need to keep the old data. On modern GPUs it will generally not be faster than clearing the background, and can be significantly slower, particularly on mobile.
It can only be safely used in fully-interior scenes (no visible sky or sky reflections). If enabled in a scene where the background is visible, "ghost trail" artifacts will be visible when moving the camera.
Clears the background using a custom clear color and allows defining a sky for shading and reflection. This mode is slightly faster than [constant BG_SKY] and should be preferred in scenes where reflections can be visible, but the sky itself never is (e.g. top-down camera).
Replace glow blending mode. Replaces all pixels' color by the glow value. This can be used to simulate a full-screen blur effect by tweaking the glow parameters to match the original image's brightness.
Linear tonemapper operator. Reads the linear data and passes it on unmodified. This can cause bright lighting to look blown out, with noticeable clipping in the output colors.
Reinhardt tonemapper operator. Performs a variation on rendered pixels' colors by this formula: [code]color = color / (1 + color)[/code]. This avoids clipping bright highlights, but the resulting image can look a bit dull.
Filmic tonemapper operator. This avoids clipping bright highlights, with a resulting image that usually looks more vivid than [constant TONE_MAPPER_REINHARDT].
Use the legacy Godot version of the Academy Color Encoding System tonemapper. Unlike [constant TONE_MAPPER_ACES_FITTED], this version of ACES does not handle bright lighting in a physically accurate way. ACES typically has a more contrasted output compared to [constant TONE_MAPPER_REINHARDT] and [constant TONE_MAPPER_FILMIC].
[b]Note:[/b] This tonemapping operator will be removed in Godot 4.0 in favor of the more accurate [constant TONE_MAPPER_ACES_FITTED].
Use the Academy Color Encoding System tonemapper. ACES is slightly more expensive than other options, but it handles bright lighting in a more realistic fashion by desaturating it as it becomes brighter. ACES typically has a more contrasted output compared to [constant TONE_MAPPER_REINHARDT] and [constant TONE_MAPPER_FILMIC].
