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||Render Settings window|| > GI tab > GI rollout



 

 

GI Rollout Parameters

 

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On – Enables/disables indirect illumination.

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UI Text Box

When the render engine is set to CUDA, the Reflective/Refractive Caustics options are not availablealways enabled and are hidden from the UI.

 

Primary Bounces

Primary Engine – Specifies the method to be used for primary diffuse bounces.

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Anchor
lightBounces
lightBounces

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Example: Primary and Secondary Light Bounces


This example shows These examples show the effect of the number of light bounces on an image:

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bordertrue

different primary and secondary engines. Note that by default Brute Force has 3 light bounces and Light Cache works with 100 light bounces. All the examples are set to their default values. 

 

Section
Column
width5%10%

 

Column
width30%80%

Image Removed

Direct lighting only: GI is off.

Render time: 0m 5.3s

Column
width30%

Image Removed

1 bounce: irradiance map, no secondary GI engine.

Render time: 0m 33.0s

Column
width30%

Image Removed

4 bounces: irradiance map + brute force GI with 3 secondary bounces.

Render time: 1m 17.4s

Column
width5%

 

Section
bordertrue
Column
width5%

 

Column
width30%

Image Removed

8 bounces: irradiance map + brute force GI with 7 secondary bounces.

Render time: 2m 24.7s

Column
width30%

Image Removed

Unlimited bounces (complete diffuse lighting solution): irradiance map + light cache.

Render time: 0m 43.5s

Column
width30%

 

Column
width5%

 

 

 

Image slider
Panel
borderStylenone

Image Added

GI is disabled

Panel
borderStylenone

Image Added

GI is set to Brute Force/None

Panel
borderStylenone

Image Added

GI is set to Brute Force/Brute Force

Panel
borderStylenone

Image Added

GI is set to Brute Force/Light Cache

Panel
borderStylenone

Image Added

GI is set to Light Cache/None

Panel
borderStylenone

Image Added

GI is set to Light Cache/Light Cache

Panel
borderStylenone

Image Added

GI is set to Light Cache/Brute Force

 

 

Column
width10%

 

GI Advanced Parameters

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Post-Processing

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