Something like chf from a VOP SOP context

[beeemtee]

Hi everyone,

is there something similar to chf in VOP SOP context. I would like to evaluate an animated channel in a given time (frame)? I'm aware of the ramp parameter type, but I find it rather limited.

Thanks in advance!

Mate

[symek]

Hi everyone,

is there something similar to chf in VOP SOP context. I would like to evaluate an animated channel in a given time (frame)? I'm aware of the ramp parameter type, but I find it rather limited.

Thanks in advance!

Mate

There is also ch() VEX function, which can evaluate channels or parameters at specific time. Check out:

http://www.sidefx.com/docs/houdini11.0/vex/functions/ch

[beeemtee]

Thanks Symek,

unfortunately I would like to access the parameter at differring times at each iteration,

and vex's ch() gives unpredictable results in these circumstances.

Since paramter evaluation and VEX iterations are so inherently different I guess the

solution is more like a hack in this situation. I just can't see it yet.

Mate

Edited March 9, 2011 by beeemtee

[symek]

Ok, so next idea is to save channel samples on geometry. Create a point cloud, curve, whatever (ptnum == channel length), send your channel to Chops, and apply attribute with ChannelSOP. Now you have a nice access to channel samples from vops.

[beeemtee]

Thanks!

It won't result in a simple setup, but if one really needs that, it can save the day.

For fractions one needs to lerp between two samples.