Can we save textures while scrubbing?

[noseman]

Hi all,

I have a very simple scene with a grid, a mantra surface and a cop2net.

What I'm doing is very simple, I am feeding the output of the COP (a simple moving ramp) into the Map of the diffuse surface using op:`opfullpath(relative path name)` and everything works great.

 

What I want to achieve, is to have the COP save a tiff file for every frame, and then use that image sequence as an input in the Map WITHOUT rendering the whole sequence every time.

 

I can do it "manually" by rendering all the frames and then reading them in the Map, but I would like Houdini to save each frame when I'm scrubbing in the timeline, just like we can do with simulations.

 

How is that possible?

[pbarua]

Use fetch ROP and wire that to mantra ROP.

[noseman]

Hi Pradeep,

thank you very much for your reply.

since I'm a total newbie, I have no idea how to do this correctly.

So, I created a ROP net in the scene context (as this is going to be a Digital Asset), added a Fetch ROP, and when I click on the source, it only shows me the ROP net itself. What do I link it to?

 

I have attached the hip file.

All I want to do is write the "cop2net1/OUT_Ramp" to a file sequence using "someFilename_$F2.tiff" ONLY when I scrub the timeline, without having to render the whole sequence.

 

https://www.dropbox.com/s/f5417gtoipoywe0/COPs%20to%20SHOPs%2003A%20change%20parameter.hip.zip?dl=0

Edited April 1, 2015 by noseman

[pbarua]

Fetch ROP's source parameter need any ouput driver. So when you click on chooser it only filters rop output drivers nothing else.

You need to have "ROP File Output" COP in there.

[noseman]

Thank you Pradeep,

I'll try it out.