The Environment rollout provides options for controlling the 3ds Max® Environment Map. .


Environment


Figure 1: The Environment Map options


Environment Parameters

Main - Determines the environment to use as Main. 

Visible - Determines the environment to use as Visible.

Options - Refreshes the 3ds Max options and tools for the environment map.

Auto Assign - Automatically assigns the Octane background environment to the 3ds Max environment map. 

Kind 

  • Main - Environment light used for rendering.
  • Visible - Auxilary environment used for everything that is directly visible.
  • None - Discards the 3ds Max environment and the Octane Daylight nodes are used.

Power - Adjusts the scene brightness. We recommend leaving this set to 1 and use the Power setting to brighten or dim the lighting.

Importance Sampling - Enables quicker convergence (noise reduction) for HRDI images by applying importance to certain areas of the HDRI, which prioritizes areas to resolve sample rays more often than other areas.

Cast Photons - If photon mapping is used, this will cast photons from the bright areas of a HDRI map.

Medium - This parameter accepts an Absorption, Scattering, or Volume medium node to create volume/fog effects across the scene. For more information, see the Volume Effects topic under the Effects category in this manual.

Medium Radius - Adjusts the medium's scale.

L. MSK - Determines which light pass ID the envirnoment will contribute to.  

Backplate - Generates a cutout rendering where foreground elements are positioned in the scene.

Reflection - Generates the Planetary environment in scene object reflections.

Refraction - Generates the Planetary environment in scene object refractions.

Set Image Gamma 1.0 - When converting standard bitmaps from 3ds MAx, this sets the gamma to 1.0 instead of the default 2.2.

External Plugin Light Kind

  • Main - Environment light used for rendering.
  • Visible - Auxilary environment used for everything that is directly visible.
  • None - Discards the 3ds Max environment and the Octane Daylight nodes are used.