Hi Bruno,
I intend to render a 16 bit per channel, 4 channel image, i.e., each pixel is 4 x unsigned 16bit (uint16_t) RGBA, leading to 64bit per pixel.
This clarified you probably need: internal: GL_RGBA16UI format: GL_RGBA type: GL_UNSIGNED_SHORT
https://www.opengl.org/sdk/docs/man/docbook4/xhtml/glTexImage2D.xml Hope that helps Cheers Sebastian
2016-07-20 8:48 GMT+01:00 Sebastian Messerschmidt <[email protected] <mailto:[email protected]>>:Hi Bruno,Ok so I meant GL_ vars. Could you suggest any code for substituting that setImage line? Thank youTo what end? You haven't told us, what you want to achieve, except from using integer. If you want to fill it with 16bit integer values you probably need internal: GL_R16UI format: GL_RED_INTEGER type: GL_UNSIGNED_SHORT will give you a format, where the red channel is 16bit with unsigned values and your source type is unsigned short values. Cheers SebastianOn 19 Jul 2016, at 09:35, Sebastian Messerschmidt <[email protected] <mailto:[email protected]>> wrote:Hi Bruno,Sorry but I didn't quite catch that. What do you mean by "but I thing you need to use GL_RGBA_INTEGER_EXT as source"The source type needs to be GL_RGBA_INTEGER_EXT afaik when using integer textures.Alternatively, how can I replace the macros in that setImage function call?Which macros? The GL_ are constants. Cheers Sebastian2016-07-19 8:45 GMT+01:00 Sebastian Messerschmidt <[email protected] <mailto:[email protected]>>: Hi, Your internal format needs to be 16bit per channel to I think, so GL_UNSIGNED_INT_8_8_8_8_REV might be inappropriate. GL_R16UI might do, but I thing you need to use GL_RGBA_INTEGER_EXT as source. Alternatively you can use GL_LUMINANCE with GL_LUMINACE16F. What exactly are you doing with the image? Cheers SebastianHello, I have a 16bit per channel, 4 channel, image. The format is short (uint16_t). Note that this image is scaled to the full 16bit depth [0, 65536] I have this code that works well for a 8bit, 4 channel image: osg::ref_ptr<osg::Image> image = new osg::Image(); image->setImage(ImageSize, ImageSize,1, GL_RGBA8, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, MyDataPtr, osg::Image::NO_DELETE); Now I want to por this to 16bit depth. How is this done? I tried image->setImage(ImageSize, ImageSize,1, GL_RGBA16UI, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, MyDataPtr, osg::Image::NO_DELETE); But this yields all black textures. How can I do this without converting my 16bit image pixel data? _______________________________________________ osg-users mailing list [email protected] <mailto:[email protected]> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org_______________________________________________ osg-users mailing list [email protected] <mailto:[email protected]> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list [email protected] <mailto:[email protected]> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org_______________________________________________ osg-users mailing list [email protected] <mailto:[email protected]> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org_______________________________________________ osg-users mailing list [email protected] <mailto:[email protected]> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org_______________________________________________ osg-users mailing list [email protected] <mailto:[email protected]> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
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