Hello,OzOnE2k10 wrote:Slightly OT here, but should give some people hope of reducing motion blur on the Rift...
@TheHolyChicken - Thanks so much for the Blur Busters vid!
I'll definitely be trying this when my 5.6" Hydis panel arrives.
The PWM control on the backlight will hopefully work at high speeds, so it shouldn't be too hard to emulate Lightboost style pulsing.
I'll see if I can extract a VSYNC signal from the Realtek chip on the LCD controller.
The rest should be simple enough, and would allow the mod to be contained in the control box with a simple toggle switch for Enable / Disable.
EDIT: Just a side thought - The firmware in the Realtek chip is programmable, so could feasibly be made to control the backlight PWM directly.
If the experiments prove fruitful, it might be possible for Oculus to release a firmware update for the control box. This would require a custom programming cable though.
(There are a few different controller chips, but the Rift dev kit appears to use the Realtek chip).
If this works on the Hydis panel, then it should be possible on the 7" dev panel too.
The few issues I can see is that the stock backlight may not be bright enough while pulsing. It might be possible to boost that as well, or replace the LEDs?
Are there any electronics peeps out there with a Hydis panel who fancy trying this? (my panel is on the slow boat from China).
I'm the owner of Blur Busters. There is now a new article.
Check out: Electronics Hacking: Creating a Strobe Backlight
There are some amazing information to be learned about how LightBoost works based on reverse engineering (vertical blanking interval lengthening techniques, late strobe phasing, Y-axis-compensated response time acceleration, etc).