That did the trick. Thank you :) 2016-07-20 11:56 GMT+01:00 Sebastian Messerschmidt < sebastian.messerschm...@gmx.de>:
> 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 < > sebastian.messerschm...@gmx.de>: > >> Hi Bruno, >> >> Ok so I meant GL_ vars. Could you suggest any code for substituting that >> setImage line? Thank you >> >> >> To 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 >> Sebastian >> >> >> On 19 Jul 2016, at 09:35, Sebastian Messerschmidt < >> sebastian.messerschm...@gmx.de> 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 >> Sebastian >> >> >> 2016-07-19 8:45 GMT+01:00 Sebastian Messerschmidt < >> sebastian.messerschm...@gmx.de>: >> >>> 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 >>> Sebastian >>> >>> Hello, >>> >>> 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 >>> listosg-users@lists.openscenegraph.orghttp://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >>> >>> >>> >>> _______________________________________________ >>> osg-users mailing list >>> osg-users@lists.openscenegraph.org >>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >>> >>> >> >> >> _______________________________________________ >> osg-users mailing >> listosg-users@lists.openscenegraph.orghttp://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >> >> >> _______________________________________________ >> osg-users mailing list >> osg-users@lists.openscenegraph.org >> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >> >> >> >> _______________________________________________ >> osg-users mailing >> listosg-users@lists.openscenegraph.orghttp://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >> >> >> >> _______________________________________________ >> osg-users mailing list >> osg-users@lists.openscenegraph.org >> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >> >> > > > _______________________________________________ > osg-users mailing > listosg-users@lists.openscenegraph.orghttp://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > >
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