FGFS-4.1/OpenSceneGraph
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Added public interface for selecting use of perspective and light space perspective shadow maps. Implementation

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of backends not implemented yet so will follow.
This commit is contained in:
Robert Osfield
2011-08-12 20:29:14 +00:00
parent 6b7175baac
commit b15317481c
3 changed files with 77 additions and 33 deletions
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19
include/osgShadow/ViewDependentShadowMap
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@@ -145,8 +145,22 @@ class OSGSHADOW_EXPORT ViewDependentShadowMap : public ShadowTechnique
virtual osg::Polytope computeLightViewFrustumPolytope(Frustum& frustum, LightData& positionedLight);
enum ShadowMapProjectionHint
{
STANDARD_SHADOW_MAP,
PERSPECTIVE_SHADOW_MAP,
LIGHT_SPACE_PERSPECTIVE_SHADOW_MAP
};
void setShadowMapProjectionHint(ShadowMapProjectionHint hint) { _shadowMapProjectionHint = hint; }
ShadowMapProjectionHint getShadowMapProjectionHint() const { return _shadowMapProjectionHint; }
virtual bool computeShadowCameraSettings(Frustum& frustum, LightData& positionedLight, osg::Camera* camera);
virtual bool standardShadowMapCameraSettings(Frustum& frustum, LightData& positionedLight, osg::Camera* camera);
virtual bool perspectiveShadowMapCameraSettings(Frustum& frustum, LightData& positionedLight, osg::Camera* camera);
virtual bool lightSpacePerspectiveShadowMapCameraSettings(Frustum& frustum, LightData& positionedLight, osg::Camera* camera);
virtual bool assignTexGenSettings(osgUtil::CullVisitor* cv, osg::Camera* camera, unsigned int textureUnit, osg::TexGen* texgen);
virtual void cullShadowReceivingScene(osgUtil::CullVisitor* cv) const;
@@ -175,8 +189,9 @@ protected:
typedef std::vector< osg::ref_ptr<osg::Uniform> > Uniforms;
Uniforms _uniforms;
osg::ref_ptr<osg::Program> _program;
bool _debugDraw;
ShadowMapProjectionHint _shadowMapProjectionHint;
bool _debugDraw;
};