GroIMP wiki

This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong.

===== Differences between the CPU and GPU light model =====

1. Ordered List Item

2. Interpretation of specular and shininess reflection

{{ :tutorials:light-spec_vs_shiny2.png?direct&600 |}}


3. Interpretation of transparency of image textures

4. Implementation of the //GrinClonerNode// behaviour
    * CPU (Twilight) implementation: repeats objects only into first quadrant
    * GPU (Flux) implementation: repeats objects into all four quadrants

{{ :tutorials:light-gridcloner.png?direct&600 |}}

5. Only in the Twilight light light model the additional function of //getReceivedPower//, //getReflectedPower//, //getTransmittedPower//, //getAbsorbedPower//, and //getHitCount// are implemented. See: [[:02_user_tutorials:20_light:01_first_steps:15_more_light_functions| More light model functions... beyond getAbsorbedPower ]]