Author Topic: New Energy conservation mode  (Read 50160 times)

2015-06-02, 16:33:22
Reply #75

racoonart

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Using the "legacy mode" tool in the converter doesn't work?
Any sufficiently advanced bug is indistinguishable from a feature.

2015-06-02, 16:35:06
Reply #76

Ondra

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or load old material and uncheck "legacy".

The difference looks like user error. If you reproduce it with the same scene, please report it as bug
Rendering is magic.How to get minidumps for crashed/frozen 3ds Max | Sorry for short replies, brief responses = more time to develop Corona ;)

2015-06-02, 17:36:33
Reply #77

maru

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[submitted to mantis]
Marcin Miodek | chaos-corona.com
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2015-06-02, 19:44:57
Reply #78

romullus

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I'd like to ask what is the reason for making legacy checkbox inactive in new material. I find new GGX not very suitable in some situations. It works better with bright materials, but is much worse with dark materials. Now mats are too shiny.

In attached example materials are: IOR - 1.52, refl - 1, gloss - 0
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2015-06-02, 20:20:17
Reply #79

maru

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It looks like it could be used to simulate nice velvet things. Not sure if it looks correct though. :)
Marcin Miodek | chaos-corona.com
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2015-06-02, 20:26:39
Reply #80

romullus

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I'm pretty sure it isn't correct, because now it's impossible to create very diffuse materials, unless one is willing to forsake specular reflection.
I'm not Corona Team member. Everything i say, is my personal opinion only.
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2015-06-02, 20:29:24
Reply #81

Ondra

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I'd like to ask what is the reason for making legacy checkbox inactive in new material. I find new GGX not very suitable in some situations. It works better with bright materials, but is much worse with dark materials. Now mats are too shiny.

In attached example materials are: IOR - 1.52, refl - 1, gloss - 0
Can you make a bug report thread/mantis for that?
Rendering is magic.How to get minidumps for crashed/frozen 3ds Max | Sorry for short replies, brief responses = more time to develop Corona ;)

2015-06-02, 20:34:27
Reply #82

romullus

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Will do.
I'm not Corona Team member. Everything i say, is my personal opinion only.
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2015-06-02, 20:36:35
Reply #83

pokoy

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I'd like to ask what is the reason for making legacy checkbox inactive in new material. I find new GGX not very suitable in some situations. It works better with bright materials, but is much worse with dark materials. Now mats are too shiny.

In attached example materials are: IOR - 1.52, refl - 1, gloss - 0

That looks awful.

I also vote for having both modes, actually I think we should have both options displayed equally, not hidden behind a 'legacy' switch.
What's the exact reason to remove the old model anyways? Does it break physics or slow down the rendering? Or is it simpler to manage code that way?

2015-06-02, 20:58:11
Reply #84

Ludvik Koutny

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I'd like to ask what is the reason for making legacy checkbox inactive in new material. I find new GGX not very suitable in some situations. It works better with bright materials, but is much worse with dark materials. Now mats are too shiny.

In attached example materials are: IOR - 1.52, refl - 1, gloss - 0

That looks awful.

I also vote for having both modes, actually I think we should have both options displayed equally, not hidden behind a 'legacy' switch.
What's the exact reason to remove the old model anyways? Does it break physics or slow down the rendering? Or is it simpler to manage code that way?

The reason to remove old model is because new one is simply better. What you are seeing here aren't properties of GGX, but simply bugs. Bug-free GGX is just more realistic and better BRDF, and since Corona is about simplicity, having switcher between better and worse feature doesn't make sense. You should always use the better one.