This example program demonstrates the use of several shadow techniques that are available in osg or that are currently under development.

=== Volumetric shadowing === 
Not fully implemented yet
=== Shadow mapping ===
Standard depth shadow mapping
=== Soft shadow maps ===
Needs shader model 3.0+ support.
=== Parallel split shadow maps ===
Currently under development


== Program arguments ==
||
||'''argument''' || '''description''' ||
||-h or --help  || Display this information. ||
||--positionalLight  || Use a positional light. ||
||--directionalLight || Use a direction light. ||
||--noUpdate  || Disable the updating the of light source. ||
||--base  || Add a base geometry to test shadows. ||
||--sv  || Select !ShadowVolume implementation. ||
||--ssm  || Select !SoftShadowMap implementation. ||
||--sm  || Select !ShadowMap implementation. ||
||--pssm  || Select !ParallelSplitShadowMap implementation. ||
||--mapcount || !ParallelSplitShadowMap texture count. ||
||--mapres  || !ParallelSplitShadowMap texture resolution. ||
||--debug-color || !ParallelSplitShadowMap display debugging color (only the first 3 maps are color r=0,g=1,b=2.") ||
||--minNearSplit || !ParallelSplitShadowMap shadow map near offset. ||
||--maxFarDist || !ParallelSplitShadowMap max far distance to shadow. ||
||--moveVCamFactor || !ParallelSplitShadowMap move the virtual frustum behind the real camera, (also back ground object can cast shadow). ||
||--NVidea || !ParallelSplitShadowMap set default !PolygonOffset for NVidea. ||
||--PolyOffset-Factor || !ParallelSplitShadowMap set !PolygonOffset factor. ||
||--PolyOffset-Unit" || !ParallelSplitShadowMap set !PolygonOffset unit. ||
||--!CullFaceFront || !ParallelSplitShadowMap add a cull face: front. ||
||-1 || Use test model one. ||
||-2 || Use test model two. ||
||-3 || Use test model three. ||
||--two-sided || Use two-sided stencil extension for shadow volumes. ||
||--two-pass || Use two-pass stencil for shadow volumes. ||
||

== Key handlers ==
||
||'''key''' || '''description''' ||
|| 1 || Select trackballmanipulator ||
|| 2 || Select flightmanipulator ||
|| 3 || Select drivemanipulator ||
|| 4 || Select terrainmanipulator ||
|| 5 || Select animationpathmanipulator ||
|| s || Cycle through statistics modes ||
|| w || Cycle through solid, wire and point modes ||
|| l || Toggle lighting ||
|| t || Toggle textures ||
||