Changing Attribute Types

[peliosis]

I'm experimenting with attributes and have a question.

How can I change vector to float attribute or extract a single color.

I try to paint creases on geometry and changed Cd[3] point to creasevalue[3] vertex attribute which doesn't work because it's vector type.

I think it can be done with some VEX sop but perhaps it easier?

Peter

[DaJuice]

Hi peliosis, try the AttributePromote SOP.

[peliosis]

Hi peliosis, try the AttributePromote SOP.

20988[/snapback]

With attribute promote I changed from point to vertex type, but I cannot change from vector (Cd) to float or just isolate one of vector elements.

[michael]

just use the first element...

[TheUsualAlex]

There is a Vector to Float VOP if that's what you're talking about. otherwise, you can still extract the vector channel into a float if you're doing this in VEx. i.e. Cd.r = fRed;

HTH,

Alex

[DaJuice]

Ahrg yes, sorry. I should try reading the post properly.

If you're trying to paint an attribute you could also use an AttribCreate, set it to float and then override that attribute in the Override Color field of the Paint SOP.

[peliosis]

Haha, if only I read the help through...

Thanks a lot DaJuice, I've done it in a more complicated way before I read from you how easy it was:)

I painted a box, with a point sop I added an alpha attr (since it's float) and with a point expression mapped red channel to it.

Then I changed the name and type with attrib promote and finished with a full functional creaseweight attribute:) Like building a plant to power the watch.

Too often I'm trying to figure out things by myself than look up simple straightforward solutions in help.

Thanks

Peter