So I've managed to get the strand shading as desired. I used Color_Attribute in the material to reference back to the color in the Create Strand From Curves node.
I need a way to set the start position of the strand and its length. Hacking the Create Strand From Curves has proven to be problematic. Is there any way to alter this with other compounds or attributes? I'm finding pointcloud.StrandLength, for example, to have no effect. -- Joey Ponthieux LaRC Information Technology Enhanced Services (LITES) Mymic Technical Services NASA Langley Research Center __________________________________________________ Opinions stated here-in are strictly those of the author and do not represent the opinions of NASA or any other party. From: [email protected] [mailto:[email protected]] On Behalf Of Stephen Davidson Sent: Tuesday, July 30, 2013 3:15 PM To: [email protected] Subject: Re: Strands How's your Spanish? http://www.youtube.com/watch?v=OHzo3cjnQ1g On Tue, Jul 30, 2013 at 12:09 PM, Ponthieux, Joseph G. (LARC-E1A)[LITES] <[email protected]<mailto:[email protected]>> wrote: Hello, I'm trying to use strands again, and what I want to do is have a strand act as a trail along a curve. The things I want to achieve are: 1. Display the strand along a curve starting at any U location on a curve. 2. Strand length will need to be shorter than the curve, typically a percentage of the length of the curve. 3. The strand needs to be able to move along the curve linearly, regardless the parameterization of the curve. 4. Strand needs to be a set color and needs to fade out to transparent as it reaches the end of the strand. 5. The strand appearance needs to remain relative to the length of the strand as it moves along the curve. Using Create Strand from Curves I was able to get some of the position and length settings the way I wanted by hacking the compound. However, I'm not sure this is the best approach. Further, there appears to be parameterization issues with the strand position. I've been unable to figure out how to accomplish the trail appearance. This is new territory for me so I'm not sure if I am approaching this from the right direction. Any suggestions would be appreciated. -- Joey Ponthieux LaRC Information Technology Enhanced Services (LITES) Mymic Technical Services NASA Langley Research Center __________________________________________________ Opinions stated here-in are strictly those of the author and do not represent the opinions of NASA or any other party. -- Best Regards, Stephen P. Davidson (954) 552-7956 [email protected]<mailto:[email protected]> Any sufficiently advanced technology is indistinguishable from magic - Arthur C. Clarke [http://www.3danimationmagic.com/3Danimation_magic_logo_sign.jpg]<http://www.3danimationmagic.com>
