Vector Transform Node =/= Vertex Colors (As of August 2011)

Ace-Angel

Hey guys,

Wanted to bring up a quick issue, maybe someone has a quick hack for it, but currently, for me, the Vertex Color node is broken, and it seems like I was able to narrow it down to it not working with the Vector Transform node.

I enabled/disabled Per-Pixel Camera vector, which should allow the usage of Vertex Color and Transform node, but it still doesn't function. Is this issue fixed in the September version of UDK?

Ben Apuna

I think this is a known limitation in UDK.

See:

UDN documentation on the Vertex Color node and how Virtuosic got around that problem in his case for [UDK] The Pit (Working Title).

Ace-Angel

That's very interesting, thanks for the link. I think I have a good idea about this (but doesn't hurt to ask), but would same basic idea apply to a character model, something which isn't static?

Also, the reason I made this thread, is because I wasn't sure if said limitation is still in effect with this post: http://forums.epicgames.com/threads/724980-Transform-Node-Kills-Vertex-Colors.-FIXED!!

Ben Apuna

That's a neat trick. I don't know if it still works though. I imagine it should, unless (as you originally asked) it's a new bug.

Sorry I can't offer any more info as you appear to be more informed about this issue than I.

Ace-Angel

Thanks for trying to help, and it seems like Virt's link is going to be my key afterall, thanks for that.

Tried going all the way back to the same month as the post in that thread, and it seems like Pixel still doesn't work.

Either I misunderstood something, or that thread is dealing with a very specific issue. Just putting it out there, incase anyone else stumbles on said issue.

Cheers!

EDIT: OK, strange, this morning the per pixel function is working...I'm guessing working on UDK for 7 hours straight gives Maxiness to it.