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Messages - romullus

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[C4D] General Discussion / Re: Motion Blur Question
« on: Yesterday at 18:56:09 »
Your tyres are not spinning :]

[Max] Feature Requests / Re: Light Mix Suggestion
« on: Yesterday at 16:43:40 »
Hi guys. I do have a few light mix suggestions if that's ok:

Please do post all your requests in the new topics. One request per one topic. Thanks.

No problem. Thanks maru for the scene.

Gallery / Re: Tiny House
« on: 2022-05-13, 10:51:02 »
I love tiny houses. The renderings are lovely.

I think i have that scene somewhere on my disk. With Maru's permission i could probably share it for download and study.

[Max] Bug Reporting / Re: problem with liquid in glass
« on: 2022-05-03, 14:48:43 »
If anyone else finds this behavior incorrect/unexpected, please feel free to post here.

I have an opposite problem - in certain situations refractive materials works correctly only when all meshes are combined into single object. Sometimes it's not a problem to keep objects separated, or combined, but there are situations where it's highly preferable to keep objects in one state, or another and Corona's pickiness about that is a major pain. It would be nice if some time in the future this limitation would be finally lifted off.

[C4D] I need help! / Re: Choas scatter problems
« on: 2022-05-01, 16:52:09 »
You're welcome!

[C4D] I need help! / Re: Choas scatter problems
« on: 2022-05-01, 14:58:14 »

Check the pivot point of the tin can, it should be located on the bottom of the object, not on the top.

I don't have photoshop, but i think your procedure is correct. How far is your result from truth? Unfortunately there's no way to know what curve has been applied by original creator, i guess you'll have to try and match the curve, or live with what you have.

First you need to remove gamma from it, then invert and save. Just keep in mind that after this operation, you will need to load the new texture with gamma 1.0

I have that same model, so i did quick test and i think you're right on both points - the glossiness map indeed looks like it's authored with 2.2 gamma and inverting it in photoshop does not make a proper roughness map out of it. I don't know why they took so odd decision, because it complicates things a lot. If glossiness would be authored with gamma 1.0, like it is in 99% cases, simple invert operation in photoshop would work correctly. Now however, your only option is to reverse the curve in Corona color correct, or to use output node.

P.S. is there specific reason why you can't or don't want to use glossiness and feel the need to convert it to roughness?

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