Author Topic: Corona Renderer 3 for Cinema 4D daily build  (Read 31956 times)

2018-12-30, 15:22:14
Reply #90

houska

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not sure if you want us to report bugs for the daily here, or in “bug reports”

Bug reports section is a much better place to report bugs, because we can track the bugs one by one there. But feel free to report wherever it makes the most sense to you.

The new bump implementation looks and behaves completely different from B2 stable, and earlier.
To recreate: I used HFPatzi’s "Corona Teamrender Quality Issue" scene for testing. [...]

I actually tried the scene that you are linking and could not get the result that you are sharing. The closest I got to it was by removing the round edges shader (why are you using it on a torus anyway?) and plugging the noise shader directly into the bump slot of Corona material. Then I lowered the bump strength to a reasonable amount (around a few hundred percent max) and tweaked the scale of the noise. The result can be seen in the attached picture.

What we actually did between B2 and the current version was to re-enable the "old" bump-mapping implementation for C4D noise shaders, so that the noise shaders work for mappings other than 2D UV mapping. The improved bump map is still enabled for other shaders and for textures, so you can always load a bitmap and use the new mapping.

Regarding your concern about the consistency of the bump-mapping results across the different versions - we will support the B2 for some time in January still, but don't count on it. It would be better to migrate to the newest commercial version once it's out. May I ask how long you'll need the B2 version to work to finish your project?

2018-12-31, 05:48:52
Reply #91

Barendby

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Hmm, unfortunately it has to be more than that. It doesn't crash for me :-( I create a new Corona Material, click the eyedropper in the Diffuse channel and select a color with it. All without a crash.

IR must be running, i also get this crash very frequently but not always. I have not reported it as i could not get proper steps to reproduce. I always try to stop IR before i use eyedropper but every now and then i forget and corona will crash. Actually, the whole c4d will freeze up

2018-12-31, 21:57:15
Reply #92

Pepelecrabb

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I know, Houska you all have been very responsive and helpful. Especially now during the holiday when you could be relaxing and enjoying some good cheer.

Upon further testing of the eye dropper issue I have learned that it does work fine with the same software and Corona build on the previous Mac OS High Sierra 10.13.

2019-01-02, 19:43:54
Reply #93

jojorender

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Hi houska,
thanks for testing.
I actually tried the scene that you are linking and could not get the result that you are sharing.

To clarify, you tested in corona 3 and adjusted the material to make the bump look like in B2 stable?
For me the bump in corona 3 looks like the phong tag gets ignored.
You don’t get that result? Do you use Windows or Mac?

May I ask how long you'll need the B2 version to work to finish your project?

Hard to say. It’s a new development project with the initial marketing images finished, but I’m expecting the client will need more images along the way till construction is finished.
Probably 3rd quarter 2019.
Everyone in archviz knows how painful it sometimes is, to get material approval from architects… Well, painfully slow… Once that’s done, you just pray that there it no more material tweaking necessary.
I don’t really expect you’ll support B2 for another year or so. That’s just the risk of early adoption.

Thanks for all your hard work.
Happy New Year!

Frank
« Last Edit: 2019-01-02, 19:53:56 by jojorender »

2019-01-02, 22:12:08
Reply #94

Nikola

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2019-01-04, 00:11:56
Reply #95

meidenberg

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The bump is still acting weird for me when using noise, the only time that it has looked nice was in "Build 2018-12-14" when the new bump was introduced but then the 3d mapping did'nt work.

in Build 2019-01-02 the bump looks more like the noise were in the diffuse-channel exactly like all versions before "Build 2018-12-14"

2019-01-04, 09:06:52
Reply #96

Beanzvision

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The bump is still acting weird for me when using noise, the only time that it has looked nice was in "Build 2018-12-14" when the new bump was introduced but then the 3d mapping did'nt work.

in Build 2019-01-02 the bump looks more like the noise were in the diffuse-channel exactly like all versions before "Build 2018-12-14"

Hi, can you share some examples of what you mean when you say "weird"?
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2019-01-04, 10:16:38
Reply #97

houska

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The bump is still acting weird for me when using noise, the only time that it has looked nice was in "Build 2018-12-14" when the new bump was introduced but then the 3d mapping did'nt work.

in Build 2019-01-02 the bump looks more like the noise were in the diffuse-channel exactly like all versions before "Build 2018-12-14"

As much as I hate saying it, this is expected though. Due to limitations of C4D, we can't have "nice" bump and the non-2D UV mappings together. As I suggested elsewhere, use a texture to fully harness the new bump implementation.

2019-01-04, 10:46:39
Reply #98

meidenberg

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The bump is still acting weird for me when using noise, the only time that it has looked nice was in "Build 2018-12-14" when the new bump was introduced but then the 3d mapping did'nt work.

in Build 2019-01-02 the bump looks more like the noise were in the diffuse-channel exactly like all versions before "Build 2018-12-14"

Hi, can you share some examples of what you mean when you say "weird"?


Attached an image showing what I mean.

2019-01-04, 10:53:00
Reply #99

meidenberg

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The bump is still acting weird for me when using noise, the only time that it has looked nice was in "Build 2018-12-14" when the new bump was introduced but then the 3d mapping did'nt work.

in Build 2019-01-02 the bump looks more like the noise were in the diffuse-channel exactly like all versions before "Build 2018-12-14"

As much as I hate saying it, this is expected though. Due to limitations of C4D, we can't have "nice" bump and the non-2D UV mappings together. As I suggested elsewhere, use a texture to fully harness the new bump implementation.

it's a bit sad but personally I could live with that. The Problem I'm having is that the bump dos'nt look like bump at all when using noise, The only time that it has looked nice is in "Build 2018-12-14", for me it have never worked before it and not in the build after it. I posted an example image in previous post, cube is 4x4cm.

2019-01-04, 11:01:23
Reply #100

houska

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it's a bit sad but personally I could live with that. The Problem I'm having is that the bump dos'nt look like bump at all when using noise, The only time that it has looked nice is in "Build 2018-12-14", for me it have never worked before it and not in the build after it. I posted an example image in previous post, cube is 4x4cm.

Have you tried playing with the scale of the noise? It just seems to me like the scale is much lower in the newer build if I compare the 2D cases. Also, cranking up the strength might help. But note that this has its limits because of how Corona tries to keep physical consistency.

2019-01-04, 11:26:27
Reply #101

meidenberg

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it's a bit sad but personally I could live with that. The Problem I'm having is that the bump dos'nt look like bump at all when using noise, The only time that it has looked nice is in "Build 2018-12-14", for me it have never worked before it and not in the build after it. I posted an example image in previous post, cube is 4x4cm.

Have you tried playing with the scale of the noise? It just seems to me like the scale is much lower in the newer build if I compare the 2D cases. Also, cranking up the strength might help. But note that this has its limits because of how Corona tries to keep physical consistency.

I have tried everything and never had a pleasent result since Late 2016 untill "Build 2018-12-14", which looks great.

The weirdest thing is that it seams to be only me having this problem.




2019-01-04, 11:29:29
Reply #102

tuami

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can u share the szene?

2019-01-04, 11:30:06
Reply #103

houska

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I have tried everything and never had a pleasent result since Late 2016 untill "Build 2018-12-14", which looks great.

The weirdest thing is that it seams to be only me having this problem.

Maybe if you posted the testing scene, we could play with it too? Now we can only guess what you're doing there. And it's not just you. Other people reported issues with bump in past too.

2019-01-04, 11:49:36
Reply #104

meidenberg

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I have tried everything and never had a pleasent result since Late 2016 untill "Build 2018-12-14", which looks great.

The weirdest thing is that it seams to be only me having this problem.

Maybe if you posted the testing scene, we could play with it too? Now we can only guess what you're doing there. And it's not just you. Other people reported issues with bump in past too.

Sure, not much is correct in this scene but I have the same issues in all projects where Corona is used.