Notch Notch Manual 0.9.23
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Environment Map

Environment Map

Add an environment map for lighting.

image

image

Method #

Add an environment map to a scene, with an image to the nodegraph and plug it into the environment map node. You should Ideally use .exr of .hdr images - HDRI Haven is a great resource for these images.

The environment map output can be plugged into both skylights and skyboxes for an even better visual response.

Make sure to enable environment maps in the material of any objects that you want to see it on.
Projects will load much faster when you use .exr as opposed to .hdr files for environment maps.

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

These properties control the core behaviours of the node.

ParameterDetails
Envmap ImageImage used for the environment map.
BrightnessHow bright the output environment map is.
Specular AmountHow much the environment map is added to the specular of objects
Diffuse AmountHow much the environment map is added to the diffuse of objects
Image Source MappingSelect 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.
Apply ModeHow the Environment Map is applied to the mesh.
  • Reflection : The image is applied as a reflection on the surface of the object.
  • Refraction : The image is applied as a refraction of light through the volume of the object.
  • Direct Mapping : The image is applied as a spherical map onto the surface of the object.
Sample QualityThe quality of the sampling done across the mesh for the mapping.
ResolutionResolution of the generated environment map. Higher resolutions can impact performance a lot.
Refractive Surface ThicknessWhen in Refractive mode, control how refractive the object’s surface is.
Max Input BrightnessMaximum brightness from an image that will be applied. Usually useful with HDR images.

Inputs

NameDescriptionTypical Input
ObjectsControl which objects are affected by the lighting.3D Object
Envmap ControllersOverrides environment map attributes using a null node.Null
Envmap ImageOverride the environment image in the attributes with an input image from the nodegraph.Video Loader
Transform ModifierApply the transforms of another node to this node.Null
Target NodeModifiy the rotations of the node to always direct the z axis towards the input.Null
Local Transform OverrideApply the transforms of another node to this node, relative to its parent.Null