[Sidefx-houdini-list] Houdini -> Maya w/ colour?

Andy Walker Andy.Walker at framestore-cfc.com
Mon Feb 25 12:56:26 EST 2008


Look at the polyColorPerVertex in the docs for setting the vertex colours:

// To set the rgb channels of selected vertices:
polyColorPerVertex -rgb 0.8 0.0 0.4;
// To set just the "g" channel of selected vertices:
polyColorPerVertex -g 0.5;
// To add to the current value of just the "g" channel of selected vertices:
polyColorPerVertex -rel -g 0.2;
// To query the "g" and "b" channels of color on selected vertices:
polyColorPerVertex -q -g -b;

Then look up this for hooking them up to your shader:

Render color per vertex in mental ray for Maya


Cheers,

Andy



----- Original Message -----
From: caleb at howlor.com
To: sidefx-houdini-list at sidefx.com, sidefx-houdini-list at sidefx.com, sidefx-houdini-list at sidefx.com
Sent: Monday, February 25, 2008 12:16:45 PM GMT -05:00 US/Canada Eastern
Subject: Re: [Sidefx-houdini-list] Houdini -> Maya w/ colour?

It occurs to me as well that I could follow Paul's suggestion after all,
and stuff the RGBA into one or more additional UV sets, if any geometry
format would support this.

Leading to the next question:

Trivial with a point SOp in Houdini - how would I transfer the point
locations from a second piece of geometry into the colour of my primary
geometry in Maya?

Thanks for the suggestions, everyone.  With Maya, I feel all the freshness
of being a newbie again.

Yay.

-caleb

Original Message:
-----------------
From: Andy Walker Andy.Walker at framestore-cfc.com
Date: Mon, 25 Feb 2008 15:02:39 +0000 (GMT)
To: sidefx-houdini-list at sidefx.com, sidefx-houdini-list at sidefx.com
Subject: Re: [Sidefx-houdini-list] Houdini -> Maya w/ colour?


If UV isn't enough, you can just have a second set of geo where xyz = RGB.

 

Optionally, you might be able to stash the Cd values into the uv attribute
-- and export that way.

Maybe ;)

Best,

Gene

----- Original Message ----
From: "caleb at howlor.com" <caleb at howlor.com>
To: jerry at intelligentcreatures.com; sidefx-houdini-list at sidefx.com;
caleb at howlor.com
Sent: Friday, February 22, 2008 7:22:18 PM
Subject: Re: [Sidefx-houdini-list] Houdini -> Maya w/ colour?

yag.

If 
they 
say 
that's 
easy, 
they 
must 
know 
more 
than 
me.  
I 
was 
hoping 
to 
save
in 
houdini, 
and 
load 
in 
Maya.  
Currently 
I'm 
looking 
at 
inventor 
and 
igs
formats, 
but 
so 
far 
it's 
not 
pretty.

I'm 
surprised 
(though 
I 
shouldn't 
be 
- 
I 
have 
run 
into 
it 
before) 
to 
find
that 
.obj 
files 
don't 
pass 
arbitrary 
attributes.

I've 
been 
working 
with 
Maya 
for 
6 
months 
now, 
and 
I 
still 
don't 
care 
for 
it
at 
all.  
Will 
I 
ever?

Thanks!


Original 
Message:
-----------------
From: 
Jerry 
Corda-Stanley 
jerry at intelligentcreatures.com
Date: 
Fri, 
22 
Feb 
2008 
18:47:12 
-0500 
(EST)
To: 
sidefx-houdini-list at sidefx.com, 
caleb at howlor.com
Subject: 
Re: 
[Sidefx-houdini-list] 
Houdini 
-> 
Maya 
w/ 
colour?


How 
about 
generating 
colour 
and 
alpha 
maps 
that 
you 
can 
reapply 
in 
maya
with 
some 
easy 
add 
attribute 
maps 
thingy?

Apparently 
my 
maya 
buds 
say 
it's 
real 
easy. 
Ha! 
they 
know 
nothing.


----- 
caleb at howlor.com 
wrote:
> 
Just 
a 
quick 
one 
that 
must 
be 
trivial:  
How 
do 
I 
get 
an 
object 
out 
of
> 
Houdini 
and 
into 
Maya 
with 
Colour 
and 
Alpha 
attributes?
> 
> 
It's 
gotta 
be 
easy, 
right?  
After 
something 
like 
20 
years?
> 
> 
Help?  
I 
need 
this 
right 
away, 
or 
I'll 
have 
to 
start 
remodeling 
in
> 
Maya.
> 
> 
Thanks!
> 
> 
-caleb
> 
> 
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