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===== 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: [[:Tutorials:light-modeling-lm-functions| More light model functions... beyond getAbsorbedPower ]]