Environment Image
Updated: 4 Dec 2023
Generate an environment image for a Skylight.
Environment Image
Method #
This node generates an environment image from a HDR/EXR image for a Skylight, or other lighting nodes.
The output from this node is an image texture which has been specifically prepared for lighting other nodes, but you can add some extra tweaks to it with Post FX nodes.
The output from this node is an image texture which has been specifically prepared for use with lighting nodes, but Post FX nodes aren’t supported directly. You’ll need to connect them to a video node, which can then be connected to the “Envmap Image” input.
Parameters
{message-information-attributes
Parameter Details Envmap Image
Image used to generate the environment from.
Image Source Mapping
Select which mapping type was used in the image.
- Dual Paraboloid : Use 2 paraboloids to generate a cube map.
- Spherical : Uses Spherical Mapping which corrects for pole artefacts.
- Equirectangular (VR 360) : Uses equirectangular mapping, common for HDRi textures.
Resolution
Resolution of the generated environment image. Higher resolutions can impact performance a lot.
Max Input Brightness
Maximum brightness from an image that can be used. Usually useful with HDR images.
Prefiltering
Prefilter the environemnt image. This can be useful for smoothing reflections.
The properties control the time at which the node is active. See Timeline for editing time segments.
Parameter Details Duration
Control the duration of the node’s time segment.
- Composition Duration : Use the length of the composition for the node’s time segment duration.
- Custom : Set a custom duration for the node’s time segment.
Node Time
The custom start and end time for the node.
Duration (Timecode)
The length of the node’s time segment (in time).
Duration (Frames)
The length of the node’s time segment (in frames).
Time Segment Enabled
Set whether the node’s time segment is enabled or not in the Timeline.
Inputs
{message-information-attributes
| Parameter | Details |
|---|---|
| Envmap Image | Image used to generate the environment from. |
| Image Source Mapping |
Select which mapping type was used in the image.
|
| Resolution | Resolution of the generated environment image. Higher resolutions can impact performance a lot. |
| Max Input Brightness | Maximum brightness from an image that can be used. Usually useful with HDR images. |
| Prefiltering | Prefilter the environemnt image. This can be useful for smoothing reflections. |
The properties control the time at which the node is active. See Timeline for editing time segments.
| Parameter | Details |
|---|---|
| Duration |
Control the duration of the node’s time segment.
|
| Node Time | The custom start and end time for the node. |
| Duration (Timecode) | The length of the node’s time segment (in time). |
| Duration (Frames) | The length of the node’s time segment (in frames). |
| Time Segment Enabled | Set whether the node’s time segment is enabled or not in the Timeline. |
| Name | Description | Typical Input |
|---|---|---|
| Objects | Control which objects are affected by the lighting. | 3D Object |
| Envmap Controllers | Overrides environment image attributes using a null node. | Null |
| Envmap Image | Override the environment image in the attributes with an input image from the nodegraph. | Video Loader |
| Transform Modifiers | Apply the transforms of another node to this node. | Null |
| Target Node | Modifiy the rotations of the node to always direct the z axis towards the input. | Null |
| Local Transform Override | Apply the transforms of another node to this node, relative to its parent. | Null |