Hi. I'm quite new to Houdini, in fact I'm trying to move from Maya to Houdini. So I've started with some tutorials that went pretty well and fast. But than, I tried the tutorial from Sidefx page named Blowing an image away with particles. The problem is that after writing the function in the color atribute for the point node that will make the particles take the color from the image pic(“/img/img1/default_pic”,$BBX,$BBZ,D_CR) the computer stays way to much to calculate (in my opinion) per frame color. It makes the color but it lasts forever. My computer is a i7 2,8 Ghz and gtx460 nvidia, so I thing there should be no problem with this kind os simulation. In the video the playback was realtime.

Thanks

How many points are you using? Any chance you could post your hip file?

Cheers

Tony

I recommend to try this lesson:
http://www.sidefx.com/images/stories/tutorials/stickies/stickies_animation_tutorial.pdf [sidefx.com]

don't use Point SOP with pic() or img() expressions for that, they are too slow
use VOPs, the fastest possible way right now
here is the example