railclone random materials not working.

[bishbashross]

Hi

Just wanted to get the latest word on this issue. Having to disable the instancing engine is not ideal of course.

Thanks

Ross

[maru]

I'll let you know what is the status of this as soon as I find out myself.
We have it logged in our internal task tracker with a good description and well documented use cases.

[bishbashross]

Great. Thanks for the reply

[maru]

The main issue here - "When instancing is enabled in Railclone, randomizing cannot be used, for example using Corona Multi Map" - is fixed, and this should also fix some further related issues.
The fix will be included in the upcoming V6 and its daily builds.

[romullus]

Nice! I just tested it with V6 and RailClone lite 4.1.1 and it works! Funny thing, now behaviour is reversed - multimap doesn't work if instacing engine is disabled. I'm not sure if there's any reason to disable instancing engine, so this might be not a big deal.

[rowmanns]

Hey Romullus,

This works fine for me with both instancing disabled in RC4.1.1 and Corona v6 DB 2019-12-12..

Can you provide an example of this not functioning?

Rowan.

[romullus]

Here's a short video and the scene. I have very little experience with railclone, so it might be, that i'm doing something wrong, or maybe i don't understand how instancing engine supposed to work.

[Ink Visual]

Hi Romulus,
I might be wrong but for me it seems like this behaviour is totally right?
Your multimap is set to instance mode, so it only changes diffuse colour of the instanced elements of railclone object.
It works when instancing engine is on (because your boxes are then instanced) and it doesn't when it's of, as these boxes are not instances anymore...
Or am I missing something?

[maru]

I am not exactly sure what happens when the instancing is turned on/off, but when it's off, doesn't the object become a single mesh? Then it either shouldn't be working per-instance anymore, or should be working in per-element mode.
OFC I may be completely wrong.

[romullus]

@cexec, i might be wrong, but i think 3ds max and Corona use word "instance" in slightly different context.

@maru, actually, you can be right, i never thought about that. I will try this with material IDs and elements and see how it works.

[romullus]

So yeah, in mesh element mode everything works as expected, but i didn't manage to get something useful in material ID mode - with instancing engine ON, max throws error or crashes, with instancing engine OFF, it renders fine, but not exactly in the way i was expected (most likely of my incorrect setup of railclone graph).

[Naxos]

This occurs also with Pflow and VertexColorMap, dunno if it is the same core issue, but please have a look at :
https://forum.corona-renderer.com/index.php?topic=8663.0

[rowmanns]

So yeah, in mesh element mode everything works as expected, but i didn't manage to get something useful in material ID mode - with instancing engine ON, max throws error or crashes, with instancing engine OFF, it renders fine, but not exactly in the way i was expected (most likely of my incorrect setup of railclone graph).

Hi Romullus,

I'd be interested to take a look at your crashing scene if you are able to send it over?

Thanks,

Rowan

[romullus]

I just tried to reproduce the issue, but this time everything works fine. Probably it was just some 3ds max's mishap. I'll let you know if it will happen again.