[EMAIL PROTECTED] wrote: > thanks, I'll try that. > > more problems I'm facing is setting the image internal data type, I've seen > in the examples setting the internal type to 3 or 4. what does it mean? how > do I set it to float or int?
I use the following code for rendering to a floating-point texture: _texture = new Texture2D; _texture->setResizeNonPowerOfTwoHint(false); _texture->setTextureSize(_totalWidth, _totalHeight); _texture->setSourceType(GL_FLOAT); _texture->setSourceFormat(GL_RGB); _texture->setInternalFormat(GL_RGB32F_ARB); _texture->setFilter(Texture2D::MIN_FILTER, Texture2D::NEAREST); _texture->setFilter(Texture2D::MAG_FILTER, Texture2D::NEAREST); > and I couldn't read from the image even that I used code very similar to > osgprerender example :(, the image->data() return buffer filled with > garbage. If I understand it correctly, the Image associated with a Texture is used for uploading the data into the texture. If you want to read from the texture, you'll need to copy it to a buffer. I can't remember how to do that off-hand, but it'll likely be fairly slow. -J ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________ _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
