FGFS-4.1/OpenSceneGraph
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Added cube and hull rendering support

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This commit is contained in:
Robert Osfield
2014-03-27 12:47:44 +00:00
parent 2f8b0f7a70
commit 27b71e3927
18 changed files with 650 additions and 135 deletions
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63
include/osgVolume/MultipassTechnique
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@@ -19,22 +19,6 @@
namespace osgVolume {
/** Container for render to texture objects used when doing multi-pass volume rendering techniques.*/
struct OSGVOLUME_EXPORT MultipassTileData : public TileData
{
MultipassTileData(osgUtil::CullVisitor* cv);
virtual void update(osgUtil::CullVisitor* cv);
osg::ref_ptr<osg::Texture2D> frontFaceDepthTexture;
osg::ref_ptr<osg::Camera> frontFaceRttCamera;
osg::ref_ptr<osg::Texture2D> backFaceDepthTexture;
osg::ref_ptr<osg::Camera> backFaceRttCamera;
osg::ref_ptr<osg::Uniform> texgenUniform;
};
class OSGVOLUME_EXPORT MultipassTechnique : public VolumeTechnique
@@ -61,9 +45,40 @@ class OSGVOLUME_EXPORT MultipassTechnique : public VolumeTechnique
/** Traverse the terrain subgraph.*/
virtual void traverse(osg::NodeVisitor& nv);
enum RenderingMode
{
CUBE,
HULL,
CUBE_AND_HULL
};
RenderingMode computeRenderingMode();
/** Container for render to texture objects used when doing multi-pass volume rendering techniques.*/
struct OSGVOLUME_EXPORT MultipassTileData : public TileData
{
MultipassTileData(osgUtil::CullVisitor* cv, MultipassTechnique* mpt);
virtual void update(osgUtil::CullVisitor* cv);
void setUp(osg::ref_ptr<osg::Camera>& camera, osg::ref_ptr<osg::Texture2D>& texture2D, int width, int height);
osg::observer_ptr<MultipassTechnique> multipassTechnique;
RenderingMode currentRenderingMode;
osg::ref_ptr<osg::Texture2D> frontFaceDepthTexture;
osg::ref_ptr<osg::Camera> frontFaceRttCamera;
osg::ref_ptr<osg::Texture2D> backFaceDepthTexture;
osg::ref_ptr<osg::Camera> backFaceRttCamera;
osg::ref_ptr<osg::Uniform> texgenUniform;
};
/** Called from VolumeScene to create the TileData container when a multi-pass technique is being used.
* The TileData container caches any render to texture objects that are required. */
virtual TileData* createTileData(osgUtil::CullVisitor* cv) { return new MultipassTileData(cv); }
virtual TileData* createTileData(osgUtil::CullVisitor* cv) { return new MultipassTileData(cv, this); }
protected:
@@ -83,12 +98,14 @@ class OSGVOLUME_EXPORT MultipassTechnique : public VolumeTechnique
enum ShaderMask
{
BACK_SHADERS = 1,
STANDARD_SHADERS = 2,
LIT_SHADERS = 4,
ISO_SHADERS = 8,
MIP_SHADERS = 16,
TF_SHADERS = 32
CUBE_SHADERS = 1,
HULL_SHADERS = 2,
CUBE_AND_HULL_SHADERS = 4,
STANDARD_SHADERS = 8,
LIT_SHADERS = 16,
ISO_SHADERS = 32,
MIP_SHADERS = 64,
TF_SHADERS = 128
};
typedef std::map<int, osg::ref_ptr<osg::StateSet> > StateSetMap;

2
include/osgVolume/VolumeTechnique
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@@ -72,7 +72,7 @@ class OSGVOLUME_EXPORT VolumeTechnique : public osg::Object
/** Called from VolumeScene to create the TileData container when a multi-pass technique is being used.
* The TileData container caches any render to texture objects that are required. */
virtual TileData* createTileData(osgUtil::CullVisitor* cv) { return 0; }
virtual TileData* createTileData(osgUtil::CullVisitor* /*cv*/) { return 0; }
protected: