Hi Qingjie, I haven't experiment with CUDA so can't comment on the specifics. The best route is probably to see anyone has published an OSG/CUDA integration example.
Robert. On 25 September 2015 at 13:04, Qingjie Zhang <[email protected]> wrote: > Hi Robert, > > I'm trying to do something with the "m_frontTex" in CUDA, so I get the > GLuint and write some values in it according to a CUDA_Opengl_interp > example. > > But I found there's no change in the texture after CUDA processing. So I'm > confused if the texture will update automatically when the "GLuint" > changes, if true, there must be something wrong in my CUDA processing. > > Thank you! > > Qingjie. > > robertosfield wrote: > > HI Qingjie, > > > > > > If you are getting the GL texture handle id from an OSG TextureObject > it'll already be associated with a osg::Texture i.e. m_frontTex why not > just reuse this? > > > > > > Robert. > > > > > > On 25 September 2015 at 07:27, Qingjie Zhang < ()> wrote: > > > > > Hi, > > > I have an opengl texture(GLuint), I'd like to wrap it to an > osg::Texture2D. Is there some way to do this? > > > > > > Actually, I got the GLuint in this way: > > > > > > Code: > > > > > > struct MyCameraPostDrawCallback : public osg::Camera::DrawCallback > > > { > > > virtual void operator()(osg::RenderInfo &renderInfo) const > > > { > > > int contextID = renderInfo.getContextID(); > > > GLuint handle= > m_frontTex->getTextureObject(contextID)->id(); > > > > > > } > > > } > > > > > > > > > > > > > > > I've googled and searched in this forum, finding maybe a way to do > this by: > > > > > > Code: > > > > > > osg::Texture2D *_texture = new osg::Texture2D; > > > osg::Texture::TextureObject *textureObject = new > osg::Texture::TextureObject(_texture, handle, GL_TEXTURE_2D); > > > textureObject->setAllocated(); > > > _texture->setTextureObject(renderInfo.getContextID(), > textureObject); > > > osg::State *state = renderInfo.getState(); > > > unsigned int _textureStage = 0; > > > > > > state->setActiveTextureUnit(_textureStage); > > > _texture->apply(*state); > > > state->haveAppliedTextureAttribute(_textureStage, > _texture); > > > > > > > > > > > > But I don't know what the "_textureStage" should be, I tried "0", but > "state->setActiveTextureUnit(_textureStage);" returns false. > > > > > > Is this the right way to achieve my goal? If not, how should I do? > > > ... > > > > > > Thank you! > > > > > > Cheers, > > > Qingjie > > > > > > ------------------ > > > Read this topic online here: > > > http://forum.openscenegraph.org/viewtopic.php?p=65205#65205 ( > http://forum.openscenegraph.org/viewtopic.php?p=65205#65205) > > > > > > > > > > > > > > > > > > _______________________________________________ > > > osg-users mailing list > > > () > > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > (http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > ) > > > > > > > > > ------------------ > > Post generated by Mail2Forum > > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=65215#65215 > > > > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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