Do all RK3066 based sticks render always at 16 bit colour depth???? and framerate stability

[VooD]

Hi, I recently bought a RK3066 (UG802 clone) stick. This is my first Android device and I was surprised to find it renders EVERYTHING at 16 bit colour depth,no matter which screen mode you choose.

The interface gradients show huge banding, and alpha effects in 3d games have terrible dithering.

On the other hand, I can't get smooth 60 fps in simple games or emulators such as jetpack joyride. I think there is some problem with the reported refresh rate.

Retroarch emulator reports a 61.lots_of_decimal refresh rate, which I believe it confuses the 3d drivers and makes every single game to skip frames regularly.

The only game which doesn't show skipped frames so far is Candy Crush, which I believe uses a different way to render its graphics.

Any idea about all this?

(of course I've tried several different roms with the same results)

[ididmytime]

Yep, welcome to the rk3066

There won't be a fix unless the source code is released, and that's not happening.

[VooD]

Yep, welcome to the rk3066

There won't be a fix unless the source code is released, and that's not happening.

Doh...

Thanks for the answer.

Too cheap to be good.

So...does other SoC have real 24 bit colour?

[ididmytime]

Doh...

Thanks for the answer.

Too cheap to be good.

So...does other SoC have real 24 bit colour?

The vast majoirty of them no.

Look for ones with open source, but you're looking at probably 3x the price of an rk3066 device.

[hoabycsr]

I´d have to check for sure but I´m pretty sure my gk802 freescale i.mx6 units did 24 or 32 bit color. I noticed a difference right away as I recall. I have since turned them both into ubuntu units but perhaps I should look at current available android firmware now. I had some problems with the roms available as I recall.

[opengl1971]

I installed many apps that report display info and found out that the display mode is RGBA8888 which
Is 32 bit , i also displayed many images and videos and did a side by side comparison between UG007
And a pc with Nvidia 680 GTX and found the display is very identical , no banding what so ever on
the UG007.

To my understanding that the only thing that RK3066 devices are rendering in 16 bit is the Pixel shaders or any texture that uses pixel shaders for lighting.

However i can confirm the frame instability as the display info app reports 61-63 fps.

Please feel free to correct me if i am wrong as i saw this is reported many times so i could be
Mistaken here.