It isn't meant to be smooth - it only uses 15 shades of red for the Mandelbrot set and 15 shades of green for the Julia set.dadarek wrote: When running the example from /opt/vc/src/hello_pi/hello_triangle2, I get an image that seems to have severe banding issues. That is, the transition between colors isn't smooth/seemless, but rather there appear to be bands as if my bit-depth configuration was very low.
Yes, I tried this as well, no luck there either.Licaon_Kter wrote:what about changing it to 32 bit?
That makes sense. But I am also having problems with QT5 on the Pi. I can't get simple gradients working correctly (i.e. http://doc.qt.nokia.com/4.7-snapshot/qml-gradient.html) without any banding.Paeryn wrote:It isn't meant to be smooth - it only uses 15 shades of red for the Mandelbrot set and 15 shades of green for the Julia set.
So is it true that you are also experiencing this banding? For some reason I feel like I'm the only one with this problem.topguy wrote:When using qmlscene in newer builds of Qt5 i discovered that the banding looks much better if you add the "--transparent" option to qmlscene.
I have no idea why.
SoQT_QPA_EGLFS_FORCE888 - When set, the red, green and blue color channel sizes are ignored whenever creating a new context, window or offscreen surface. Instead, the plugin will request a configuration with 8 bits per channel. This can be helpful on devices where configurations with less than 32 or 24 bits per pixel are chosen by default but are known not to be suitable, for example, due to banding effects. Instead of changing all the applications, this variable provides an easier shortcut to force 24/32 bpp configurations for a given device.
Code: Select all