Fix loading of 16bit PNG images
Fix loading of 16bit PNG images

When a 16bit PNG image is loaded, the internalTextureFormat is set to unsized (i.e pixelFormat) constant. This results in 8 Bit Texture2D
openscenegraph/osg,openscenegraph/osg,openscenegraph/osg,openscenegraph/osg,scrawl/osg,scrawl/osg,scrawl/osg,scrawl/osg