1 | /* |
---|
2 | ----------------------------------------------------------------------------- |
---|
3 | This source file is part of OGRE |
---|
4 | (Object-oriented Graphics Rendering Engine) |
---|
5 | For the latest info, see http://www.ogre3d.org/ |
---|
6 | |
---|
7 | Copyright (c) 2000-2006 Torus Knot Software Ltd |
---|
8 | Also see acknowledgements in Readme.html |
---|
9 | |
---|
10 | You may use this sample code for anything you like, it is not covered by the |
---|
11 | LGPL like the rest of the engine. |
---|
12 | ----------------------------------------------------------------------------- |
---|
13 | */ |
---|
14 | #ifndef OWL_VOLUMERENDERABLE |
---|
15 | #define OWL_VOLUMERENDERABLE |
---|
16 | #include <OgrePrerequisites.h> |
---|
17 | #include <OgreSimpleRenderable.h> |
---|
18 | |
---|
19 | /** Direct Volume Rendering. |
---|
20 | TODO: LOD: reduce number of slices in distance |
---|
21 | TODO: option to generate normals for lighting |
---|
22 | @author W.J. van der Laan |
---|
23 | */ |
---|
24 | class VolumeRenderable: public Ogre::SimpleRenderable { |
---|
25 | public: |
---|
26 | VolumeRenderable(size_t nSlices, float size, const Ogre::String & texture); |
---|
27 | ~VolumeRenderable(); |
---|
28 | |
---|
29 | // Copydoc Ogre::SimpleRenderable::notifyCurrentCamera |
---|
30 | void _notifyCurrentCamera( Ogre::Camera* cam ); |
---|
31 | void getWorldTransforms( Ogre::Matrix4* xform ) const; |
---|
32 | |
---|
33 | /** |
---|
34 | * Retrieves ratios of the origin-centered bounding sphere for this |
---|
35 | * object. |
---|
36 | */ |
---|
37 | Ogre::Real getBoundingRadius() const; |
---|
38 | |
---|
39 | /** |
---|
40 | * Returns the camera-relative squared depth of this renderable. |
---|
41 | */ |
---|
42 | Ogre::Real getSquaredViewDepth(const Ogre::Camera*) const; |
---|
43 | protected: |
---|
44 | void initialise(); |
---|
45 | |
---|
46 | size_t mSlices; |
---|
47 | float mSize; |
---|
48 | float mRadius; |
---|
49 | Ogre::Matrix3 mFakeOrientation; |
---|
50 | Ogre::String mTexture; |
---|
51 | Ogre::TextureUnitState *mUnit; |
---|
52 | }; |
---|
53 | #endif |
---|