How to deal with high contrasting materials?
I'm trying to scan a Nike sneaker. It's has black parts and white parts. If I set camera exposure for the white parts, the black parts turns out too dark. If I set exposure to get details out of the black parts, the white parts gets blown out, too bright and lose information.
I tried just taking different exposures and chucking it all in. But I'm not getting very good results this way. The dark and bright exposures combined seems to yield a sort of middle ground. If I only run the dark exposures the white parts turns out better, if I only run bright exposures the dark parts are better, compared to running both.
What are my options?
I'm thinking I could perhaps take several exposures of each position and combine them in photoshop. A lot of work tho. Or getting a camera with HDR. But I would still need to adjust conrast/levels in photoshop because RC doesn't support higher bitrate HDR for calculating the mesh, right?
Another option is to make two models, and combining the meshes of bright and dark parts. But it seem like a lot of work. I could also possibly use scanning spray, but I'll lose colors of the texture.
How do you handle contrasting materials?
White sole dark exposure:
White sole combined exposures:
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Hi,
I think HDR could well be the right direction to go in. You don't always need to buy an HDR camera, you might be able to set up auto-bracketing on your camera and generate your own HDRs. You should then be able to tone-map back to 8 bit images with great detail in both the light and dark parts.
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