Forums Technical Discussion pic expression trouble

pic expression trouble

   2601   5   1
User Avatar
fkkcloud
Member
26 posts
Joined: Aug. 2007
Offline
 
Hi,

I have a geo which hav UV projected by Camera and I am trying to get the uv attribute to point Cd.
Used pic expression but it doesn't seem to work properly.


attached hip file avilable

Attachments:
2.png (60.3 KB)
1.png (32.8 KB)
picTest.hip (1.1 MB)

 Report
User Avatar
rafaels
Member
696 posts
Joined: March 2009
Offline
 
The weird result is due to your shader, more specifically the OpenGL part of it that is adding the point color to your texture color.
Other than that, it's working as expected.

Cheers
Toronto - ON
My Houdini playground [renderfarm.tumblr.com]
“As technology advances, the rendering time remains constant.”
 Report
User Avatar
fkkcloud
Member
26 posts
Joined: Aug. 2007
Offline
 
okay, how would I fix that?

cause I am trying to emit particle from that so the particle that emit from the point could grab the color.

Thanks!
 Report
User Avatar
rafaels
Member
696 posts
Joined: March 2009
Offline
 
If you got color attribute on the points of your emitting geo, the particle emitter picks it up by default.
Toronto - ON
My Houdini playground [renderfarm.tumblr.com]
“As technology advances, the rendering time remains constant.”
 Report
User Avatar
fkkcloud
Member
26 posts
Joined: Aug. 2007
Offline
 
point(“../attribcopy1”,$PT , “uv” , index)
Tried that earlier.
It came out like this..
which have wrong color space.

Attachments:
Screenshot.png (28.9 KB)

 Report
User Avatar
fkkcloud
Member
26 posts
Joined: Aug. 2007
Offline
 
colormap in vop helped this issue!
 Report
  • Quick Links