16 Comments
User's avatar
saul's avatar

Is there a surface inside that gate that can receive a projection, or is it open air/too dark for the projector? Also, I assume we can use a negative matte in post if we need to keep stuff within bounds? Cheers!

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Nikola's avatar

Yes, doors will be closed so you can map that part too :)

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saul's avatar

Thanks! Just to clear one other thing up, we need to also create an (inverted?) depth map from the template to process our videos with?

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Nikola's avatar

You can use template .png which have alpha in it. Video have to be with black background.

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Nikola's avatar
5dEdited

The input reference can be used as an input in the ComfyUI node workflow to help the AI understand the contours of the object. The overlay must remain stable so the image does not move during the projection.

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Jo Zhang's avatar

Thanks for the explanation!

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Demz's avatar
4dEdited

Will you be taking care of the masking on your projection mapping software Nikola? Is Black Background sufficient?

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Nikola's avatar

Yes black black background is sufficient. Background behind fortress have to be black, you can use template .png with alpha in it.

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Nikola's avatar

Yes, you will recive mapping template .png for accurately following the contours for projection.

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Matteo's avatar

where will I receive the .png file ?

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Nikola's avatar
5dEdited

Here you go, until admins add it somewhere visible https://drive.google.com/file/d/1PU2RAxO5Weu4i3JG8mnBdFp4fdxbRPTS/view?usp=sharing

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Matteo's avatar

Thank you very much for the opportunity !

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Matteo's avatar

This looks like an amazing project!

I just wanted to clarify one thing: will participants receive a mapping template or a reference file with the exact shapes/measures of the fortress walls?

Or should we simply create a standard 1920×1080 video and your team will handle the warping/mapping on your side?

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Kelly.Y's avatar

Encountered "Alert 413 - Request Entity Too Large. File upload failed." with the above 3D model file (165MB) in ComfyUI Desktop. Solved it by decimating the mesh down to 6.1MB, and it loaded successfully for now. Hopefully the ComfyUI Desktop could support to upload large 3D model this time for the challenge.

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Nikola's avatar

Sorry about that, this model was optimized for 3D printing.

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Nikola's avatar
5dEdited

When I project this template reference, it aligns perfectly with the physical object. That’s why it’s important that the overlay video remains exactly the same during projection, using the same reference resolution (1920×1080), so everything stays perfectly aligned when projected back onto the real object. This is true projection mapping, not some flat screen movie theater projection.

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