Topic: Masking light flicker problem.

Hi,

I am using a QCP9K. Whenever I try to do some masking, when I take away the rig or change the rig size, the brightness of the frame changes quite dramatically. This leads to light flicker and also means that an outline of the rig can be seen once masked. I don't know how to fix it, but I think that reflections of light off the subject causes it. Any help is appreciated.

Thank you.

Re: Masking light flicker problem.

Turn off "rightlight", turn white balance to manual, and basically disable any automatic settings.

THAC XIV entry here: (Never) Meant To Be

Re: Masking light flicker problem.

Sean wrote:

Turn off "rightlight", turn white balance to manual, and basically disable any automatic settings.

Thanks but I have already done that. I only really get light flicker when masking, normally I do not get flicker.

Re: Masking light flicker problem.

Aero_Studios wrote:
Sean wrote:

Turn off "rightlight", turn white balance to manual, and basically disable any automatic settings.

Thanks but I have already done that. I only really get light flicker when masking, normally I do not get flicker.

I had the same problem, I just added a black brick in the background and the light flicker stopped. It has something to do with dark colors for some reason.

https://farm3.staticflickr.com/2906/14493643070_db4eab9412_o.png

Re: Masking light flicker problem.

AniMax wrote:
Aero_Studios wrote:
Sean wrote:

Turn off "rightlight", turn white balance to manual, and basically disable any automatic settings.

Thanks but I have already done that. I only really get light flicker when masking, normally I do not get flicker.

I had the same problem, I just added a black brick in the background and the light flicker stopped. It has something to do with dark colors for some reason.

Thanks. I will try that and see if it works.

Re: Masking light flicker problem.

Your problem could also be light reflecting off your rig. I would suggest using darker colored bricks that aren't very glossy. If you're up to it, I would also suggest using a little bit of sand paper on the bricks you use for your rigs to reduce light reflection off of the rig.

Re: Masking light flicker problem.

Or, tone down your light settings.  Not only does that cause some slight light flicker, but it makes the light more reflect-sensitive.

Not literally dead, just no longer interested in Lego or animation.

Re: Masking light flicker problem.

minifig051 wrote:

Or, tone down your light settings.  Not only does that cause some slight light flicker, but it makes the light more reflect-sensitive.

The exposure settings you mean? If I do that the scene will be to dark.

Re: Masking light flicker problem.

Aero_Studios wrote:
minifig051 wrote:

Or, tone down your light settings.  Not only does that cause some slight light flicker, but it makes the light more reflect-sensitive.

The exposure settings you mean? If I do that the scene will be to dark.

All the light settings.

Let's see...  I have the gain a little less than a quarter way, the exposure a little more than halfway, and the brightness between halfway and three-quarters way.  I have no light flicker with those settings.

Those settings only work with a least 3 lamps.

Not literally dead, just no longer interested in Lego or animation.

Re: Masking light flicker problem.

minifig051 wrote:
Aero_Studios wrote:
minifig051 wrote:

Or, tone down your light settings.  Not only does that cause some slight light flicker, but it makes the light more reflect-sensitive.

The exposure settings you mean? If I do that the scene will be to dark.

All the light settings.

Let's see...  I have the gain a little less than a quarter way, the exposure a little more than halfway, and the brightness between halfway and three-quarters way.  I have no light flicker with those settings.

Those settings only work with a least 3 lamps.

I only have two.

Re: Masking light flicker problem.

Aero_Studios wrote:

I only have two.

Well, there's your problem.  Not enough lighting means you have to raise your camera settings to make it brighter, which means light flicker.

When you have more lighting, you're able turn your settings down and it'll still be bright enough.

Not literally dead, just no longer interested in Lego or animation.

Re: Masking light flicker problem.

I tried the black brick but that didn't help, although thanks for the suggestion. I took the paper off of my lamps and lowered the settings on the webcam and it made a huge difference! The light still changes on the darker parts of the back drop but it pretty much got rid of most of it. Thank you for all the suggestions.

Re: Masking light flicker problem.

Oh, yeah.  I forgot about the paper thing.

To get rid of all your light flicker, get another lamp.  Maybe even 2 more lamps.

Not literally dead, just no longer interested in Lego or animation.

Re: Masking light flicker problem.

The thing is the paper made the lighting really smooth, but without it the quality seems worse.

Re: Masking light flicker problem.

Worse?  Worse how?

Not literally dead, just no longer interested in Lego or animation.

Re: Masking light flicker problem.

minifig051 wrote:

Worse?  Worse how?

Seems to bright. The light wasn't as natural as before. Keep in mind I tried this very quickly. I will play around with it later when I have time.