Additional Mask

 

I would like to have additional information regarding additional masks. 

Starting from the principle that I have correctly configured my green screen studio. In TRK Input, on studio, I am in Mask Mode = Normal. The entire image goes into a virtual studio. In Window mode, only the configured green background part goes into the virtual studio.

In Normal Mode: Additional masks allow you to recover the IN video.

In Windows Mode, additional masks allow you not to key certain parts inside you green screen.

Is it possible to work in Windows mode and invert masks, I mean add virtual studio in some places ?

Thanks for your help

JD


   JDarras

 
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JDarras
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I start to undertand how to used different modes in Aximmetry : Billboards or Tracked cameras.

Maybe it's possible to do it using nodes ? How can I modify the nodes without to loose the original module ?

JD

 
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Eifert@Aximmetry
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Hi JD,

I'm not exactly sure what your use case is, but I can provide some guidance. When using the Mask Mode Window with the Use Window Model, the intersection of the Window Model and the non-green part of the studio will only show the virtual studio.
Don't forget that when you turn on Use Window Model, also turn on Show Window Model:

Then you can add Window Models through the Window Model pin, like this:
Additional Mask

The Window Model will appear as purple in the Studio view. When it is over the green part, you get the input with keying and the virtual studio. When it is over the non-green part, you only get the virtual studio. In the remaining areas which are not covered by the Window Model, you only get the input:
Additional Mask Additional Mask

There might be a better solution for your situation. If you can describe your use case in detail, we can provide more specific advice on the best setup for you.

Warmest regards,


 
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JDarras
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Thanks a lot for your answer,

I really encounter a problem because I want to use the normal mode mask which will place my UE background everywhere and use an additional mask to precisely not place it. My use case is that I have a green screen studio but without the floor. I want to keep my floor without any change, without covering with my graphic. Is it possible to reverse a mask to tell it to do nothing at its location?

The only possibility I see is to put studio in windows mask mode and define the locations where I want to see my UE graphic. Wouldn't it be interesting to do the opposite? Define what you do not want to embed while remaining in normal mask mode?

Have a nice day
JD

 
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Eifert@Aximmetry
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Hi JD,

Currently, this is not possible with Normal Mask Mode. But it is on our request list and we will consider adding it in future releases.

Alternatively, you could set it up with Window Mask Mode and use Window Model, as mentioned in my previous post. In this setup, the green part not overlapped by the Window Model would function as the floor of your studio and would never be part of the virtual graphics. However, setting this up could be quite cumbersome as you would probably need multiple Window Models.

Another option is to edit the camera compound and add an additional mask for your studio's floor. Instructions can be found here: https://my.aximmetry.com/post/3738-3d-cleanplate-scanning-for-simple-set-pr Although in that case, it was done to use different keyers. In your case, you will just need the input without the keyer for the additional mask (Mask Mixer 2).

Warmest regards,

 
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JDarras
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Thanks a lot for your answer,

If will use Window Mask Mode and wait for an update.
Do you know if I can add Augmented reality on the floor with MixedCam Mode ?

Best regards
JD

 
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JDarras
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I would like to add. If you add this functionnality, to be able to leave augmented reality in forground.

Thanks

JD

 
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Eifert@Aximmetry
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Hi JD,

There is no mixed camera compound with AR camera capabilities, like the ones here: https://aximmetry.com/learn/virtual-production-workflow/preparation-of-the-production-environment-phase-i/ar-production/aximmetry-de-scene-setup-ar/#ar-in-green-and-led-wall-projects
If you use the Green + AR camera (tracked, 1-3 billboards) camera, you can set the AR to be in the foreground by turning off the AR Overlay Behind parameter in the SCENE panel.

If you need a mixed camera with AR capabilities, we can add it to our request list. In the meantime, you can use an additional computer to render the AR, as explained here: https://aximmetry.com/learn/virtual-production-workflow/preparation-of-the-production-environment-phase-i/led-wall-production/combine-different-productions-in-separate-machines/
However, if you want the AR to show up in the virtual cameras of the mixed camera setup, it will be more complex than described in that documentation.

Additionally, be aware that if you use mixed cameras, the Studio masking will not apply to the virtual cameras. If the virtual cameras capture the floor, you can create masks with static images for them since the camera's position will not change. However, keep in mind that the floor being visible will probably not look good with any virtual camera movement.

Warmest regards,

 
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JDarras
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Thank you for your reply. I will use the Tracked+AR setup. Do I need to modify the parameter: Frame Buffer Pixel Format to change it to RGBA float?

Thank you again for your responsiveness 

J.D.

 
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Eifert@Aximmetry
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Hi JD,

With the + AR camera types, the Frame Buffer Pixel Format only needs to be set to FloatRGB when HDR is used in the camera compound:

Warmest regards,