Darkplaces lighting/Additional options

Revision as of 00:07, 6 August 2012

Darkplaces lighting | previous chapter: Light sources

Contents 1 Optimizations 2 Light attenuation

Darkplaces lighting renderer have a bunch of misc options to tweak.

Optimizations

For best performance, all optimisations should be on.

 r_shadow_scissor : Use scissor optimization of light rendering (restricts rendering to the portion of the screen affected by the light)

 r_shadow_sortsurfaces : Improve performance by sorting illuminated surfaces by texture

 r_shadow_usebihculling : Use Bounding Interval Hierarchy for culling lit surfaces instead of Binary Space Partitioning

Light attenuation

This console variables change attenuation for all dynamic lights.

 r_shadow_lightattenuationdividebias : Controls the speed of light fading, 1 is default linear fade.

 r_shadow_lightattenuationlinearscale : Linear scale applied during attenuation, larger values will make lesser half-light zones

 r_shadow_lightintensityscale : Renders all lights brighter or darker

 r_shadow_lightradiusscale : Renders all world lights larger or smaller

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