Corona Renderer for Cinema 4D Beta 2 Release Candidate

[stanDM]

Displacement not working on polygon selections if object has a base material

When you apply any kind of corona material on object and then, on top of it, you apply material with displacement onto polygon selection, displacement does not show up. This used to work in some Beta 1 RC, but got broken in final Beta 1 stage and was never fixed despite being reported to Mantis.

Edit: screenshot 1 shows object material displacement being applied to polygon selection material, despite the fact it has a different displacement.
screenshot 2: base object material has no displacement, polygon selection material has displacement, but it does not show up

Stan

[Beanzvision]

I can also confirm the mtl override issue. For the devs, adding to wrike.

[stanDM]

Object buffer mask in composition - bug or limitation?

If I do multipass render with object buffer and this object has Corona composition tag with all options turned off except "visible in mask", you cannot see this object in the object buffer pass
We have tried to use Material ID pass instead of object buffer mask, but this does not work either. Not sure if this is bug or limitation, but it works in C4D Standard renderer ...

We use this approach to create tracking points for post production in AfterEFfects (or any other postproduction SW) - and because of this problem we have to use C4D Standard renderer to achieve results we need.

Stan

[Nikola]

Override material with bump texture... c4d quits. Tested few files.

...

Hi Imran,

Thank you for the bug report. I fixed the crash, but I would like to ask you whether there is some object in the scene which doesn't have assigned any material (doesn't have any texture tag)? In such case, if the material has some shader in any of its channels this channel will not affect the look of the object because object hasn't texture tag and Corona don't know what mapping it should use because meaning of the Material override is mainly to temporarily override material of all objects which already has some material assigned. Alternatively, you can use "Projector" shader to tell Corona what mapping should be used for the given channel.

Nikola

[Br0nto]

Thank you for the scene! We successfully reproduced the issue and will fix it ASAP.

OK, fixed! You can expect the fix to appear in RC3. Thank you again for the scene! With it, we were able to pinpoint the problem very quickly

Happy to help! Thanks!

[Core2000]

Thx for the fast updates guys. You are awesome!

We just have Problems with IR and Xpresso nodes. When we use Xpresso the IR updates permanently.

[Beanzvision]

Override material with bump texture... c4d quits. Tested few files.

...

but I would like to ask you whether there is some object in the scene which doesn't have assigned any material (doesn't have any texture tag)? In such case, if the material has some shader in any of its channels this channel will not affect the look of the object because the object hasn't texture tag

Nikola

I can confirm that it does work if all objects are assigned a material tag of some sort.

[houska]

Thx for the fast updates guys. You are awesome!

We just have Problems with IR and Xpresso nodes. When we use Xpresso the IR updates permanently.

Yes, this is a known issue and unfortunately cannot be solved without making compromises. Xpresso updates the scene periodically, which restarts the IR rendering. We cannot do anything about it, we can only do some workarounds, which will probably help, but as with everything in C4D, it will take some time to implement and currently we don't have that time, as we are focusing on bringing more important features and fixing crashes etc...

[Beanzvision]

Object buffer mask in composition - bug or limitation?

If I do multipass render with object buffer and this object has Corona composition tag with all options turned off except "visible in mask", you cannot see this object in the object buffer pass
We have tried to use Material ID pass instead of object buffer mask, but this does not work either. Not sure if this is bug or limitation, but it works in C4D Standard renderer ...

We use this approach to create tracking points for post production in AfterEFfects (or any other postproduction SW) - and because of this problem we have to use C4D Standard renderer to achieve results we need.

Stan

So you're after this? Sorry, I'm no masking expert ;) I just checked seen by the camera in the composite tag.

[iacdxb]

Override material with bump texture... c4d quits. Tested few files.

...

Hi Imran,

Thank you for the bug report. I fixed the crash, but I would like to ask you whether there is some object in the scene which doesn't have assigned any material (doesn't have any texture tag)? In such case, if the material has some shader in any of its channels this channel will not affect the look of the object because object hasn't texture tag and Corona don't know what mapping it should use because meaning of the Material override is mainly to temporarily override material of all objects which already has some material assigned. Alternatively, you can use "Projector" shader to tell Corona what mapping should be used for the given channel.

Nikola

Thanks Nikola for reply.
Scene was full of objects and it was hard to find... where is crashing.
Yes... some of them was not assigned any material.

Crash happens with only bump channel, if texture is in diffuse or in any other channel, its not crashing weather material is applied to object or not.
(attached)... to plane object no material applied, just taking diffuse color only.... no displacement because no material was applied and same function should be with bump. Spheres are getting displacement because of material applied.

And yes... before override material, any material should be applied to object, that's right...!

and thanks... you fixed it.

...

[iacdxb]

Till the final release... any chance to improve view of Sun and Sky objects in view port...?
after adding these.... view port stays almost same, a bit darker with sky, at least when sky added... a small hint of blue gradient feels sky is added and same for sun, a small light.

...

[Eddoron]

Ok, so everything's fine with a texture tag, but there are always some situations where none are assigned or some missing, with hundreds of objects. I'd fix it before the final or the tsunami of questions will wash us away like the dinosaurs (who lived near the coast).

[iacdxb]

With Cloth tag... IR goes crazy.....!
Even the object is disable, traffic lights are off... IR same.

file sent.

...

[Eddoron]

With Cloth tag... IR goes crazy.....!
Even the object is disable, traffic lights are off... IR same.

file sent.

...

You are tearing me apart, Lisa!

It seems that you have a sixth sense, that is coupled to the IPR always being active, for finding a new bug every day.

BTW, what do you get when you set all traffic lights to green?




-A crash!

[iacdxb]

With Cloth tag... IR goes crazy.....!
Even the object is disable, traffic lights are off... IR same.

file sent.

...

You are tearing me apart, Lisa!

It seems that you have a sixth sense, that is coupled to the IPR always being active, for finding a new bug every day.

BTW, what do you get when you set all traffic lights to green?




-A crash!

ahahahhahaa..... I am not finding, it comes out auto, although I have to finish one or two jobs everyday so using different tools for every job and in that crash happens.

IR, I am using when texture fixing and then in lighting. Render with PV most of time.

even object is on or off.... In attachment, object is off, but cloth tag is there....!!!
IR goes crazy until remove cloth tag.

but not yet this bug confirmed from corona team side....!

...