Author Topic: Wrong RGB between Rhino 6 and Keyshot 7.3  (Read 276 times)

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Offline martim

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Wrong RGB between Rhino 6 and Keyshot 7.3
« on: January 07, 2019, 06:12:05 pm »
When we export (via Live Link) modells from Rhino 6 to Keyshot 7.3 the RGB Values in Keyshot are wrong and lighter.
They are similar when we change Gamma in Keyshot to 1 - but then included textures are to dark.
I thought this should be fixed in keyshot 7 - someone an idea?

Thanks Martim

Offline Furniture_Guy

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Re: Wrong RGB between Rhino 6 and Keyshot 7.3
« Reply #1 on: January 08, 2019, 05:07:22 am »
I would avoid using images with a CMYK color space as textures or labels. They will not look the same as they do in Illustrator or Indesign. The reason for that is KeyShot does not use color profiles to convert from CMYK to RGB color values. So the conversion is rather arbitrary and incorrect.
As Perry suggests, it is best to get the images in RGB color space.

Dries

I know you're not exporting CMYK images but I think the same applies here. I'm not that familiar with Rhino but I doubt it's exporting in sRGB (or any profile for that matter), the color space of KeyShot.

Perry (Furniture_Guy)
« Last Edit: January 08, 2019, 05:11:25 am by Furniture_Guy »

Offline Sean

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Re: Wrong RGB between Rhino 6 and Keyshot 7.3
« Reply #2 on: January 10, 2019, 12:40:40 am »
Hi Martin,

Your intuition is correct, we are misinterpreting the imported colors. We will have to change the plugin and importer to make sure they convert correctly from Rhino's color space.

Thanks,
Sean