Details: Category: User Guides; Published: 12 September 2012; Written by openscenegraph; Hits: 20496

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

Not fully implemented yet

Standard depth shadow mapping

Needs shader model 3.0+ support.

Currently under development

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	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

OpenSceneGraph

osgshadow