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Topics - j_forrester

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[Max] Bug Reporting / Backplate issue with gloss map
« on: 2019-06-10, 11:53:54 »
Pretty sure this is a bug, unless my material is not setup correctly.

It's very simple to replicate. I have a backplate with a lightmaterial and "Emit Light" switched off. Into this is a conrona tonemap control map and a corona bitmap (normal setup I believe, see attached). I am also using a default sun/sky setup

The problem seems to happen with you add a map including procedural into the gloss map slot or change the gloss value lower than 1. This then creates unwanted shadowing and artefacts.  The ground material is just a simple white material. I have noticed before that you get unwanted shadowing using backplates but have only just worked out what it might be.

I am currently using Corona 4 rc3 but I noticed this with previous versions.

Please can you confirm this is correct.

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When rendering locally you can obviously dump the render and resume later. When rendering across the network the render dialogue where you dump the VFB from is not available. It would be great to be able to dump it directly from the frame buffer and then resume later. Sometimes when we get into work in the morning a render may have only been rendering 3-4 hours, yet we have to lose that rendering time because we cannot dump from the VFB.

Not even sure if it's possible, but would be a great addition.

Many thanks.

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When opening up Corona from scratch is there any true world camera value that EV 0 is equivalent too. I have looked up values on Wikipedia and it suggests a value of EV 9 for interior shots, when entering this number is becomes completely blown out. The reason I ask is because people I work with are trying to compare physical camera settings to Corona's EV values. I personally believe that is not equivalent to any value as EV is connected to aperture. When sliding the EV value whilst rendering the aperture (F-number) is not effected therefore is see this as more of an artistic approach. I know I can add a Corona Cam Modifier, but obviously locks off the EV value.

Can anyone shed any light on the out the box values or are they more artistic as presumed.

 Thank you for any help.

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