Commit Graph

3 Commits

Author SHA1 Message Date
Robert Osfield
cceee38727 Moved Texture*::Extensions functionality into GL2Extensions
git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14581 16af8721-9629-0410-8352-f15c8da7e697
2014-12-09 10:05:59 +00:00
Robert Osfield
9f13e2fcb9 From Lionel Lagarde, "Support for paging and shared PBO"
"The attached file contains:
- a per-context read counter in GLBufferObject::BufferEntry
- a global client counter in BufferData
- the glue between Texture* and Image client counter
"
2013-06-27 16:44:32 +00:00
Robert Osfield
1284a0dd40 From Pawel Ksiezopolski, first email: "This submission adds texture buffer object ( defined in GL_ARB_texture_buffer_object extension ) to the osg::Texture* family.
TextureBuffer objects may use osg::Texture::bindToImageUnit(), so GLSL shaders are able to use not only texelFetch() function , but also functions defined in GL_ARB_shader_image_load_store extension : imageLoad(), imageStore(), imageAtomicAdd() etc."

second email: "After a while I found that osg::Texture::applyTexParameters() used with TextureBuffer may cause some OpenGL errors ( applying texture filters and wraps to TextureBuffer makes no sense ) so I fixed it."
2013-05-22 12:49:46 +00:00