Blur Busters Forums

Nice project. I'd like to tinker with something similar soon :) What USB-enabled microcontroller are you using, just out of curiosity? Personally, I'd like to start off using a scope to directly measure everything at once. However, I suspect that every mouse and/or microcontroller emulating a mouse...

On the second thought, using the gray square for the threshold calibration is a bad idea after all. The threshold needs to be gamma independent and the system, gpu and tv can have various gamma settings. My device needs to ignore that, so I can only use the square with the value of 0 or 255 , measur...

Sorry for using the wrog term. By saying cable latncy I meant the lag caused by all the electronic components and postprocessing, excluding the mechanical part (LCD crystals)

There is no point in measuring the latency on the other part of the screen than the very top if you want to measure just the cable latency. My method works I can assure you.

Well, you can put a button on the thing that sets the threshold to the current reading + x, and since you're using analog reads you can get slope by subtracting the current measurement from the previous measurement. Calibrating the sensor threshold with the panel itself might be not bad idea. The m...

No Sparky, I cannot do that. I read the analog value from the photo sensitive element, my sensor is shielded from the ambient light with a black foam, when the photosensitive element has any inertia it affects readings of the falling and rising slopes of a pixel (LCD response times) threshold with a...

A little update. After connecting my photoresistor's output to the scope I went into shock. This damn thing has rising and falling slopes going for more than 50ms ! No surprise I've had problems with min/max brightness calibration. I bought a handfull of phototransistors with the 15us slopes. That s...

Q83Ia7ta wrote:It looks neat. Is black to white transition time used?

That's what the slider is for. If set to 50% the threshold is set to gray. At 10% it measures the lag without LCD response time.

GILT WIP v0.4b

Btw, I'm a skilled shader hacker, so I can make any game to flash the screen on keypress using a simple shader injection if you still insist on in-game testing. What if I play quake? Um, sorry that "any" was a little exaggeration dx11,12 only :) dx9 also, but it requires messing with asm and cannot...