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Search the Community: Showing results for tags 'cops'.



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Found 6 results

  1. Hi... I'm looking to attempt some image manipulation using CHOP nodes. Having used the Image CHOP to access the individual pixel data I'm lost on the best way to Export it back to COP context. I'm guessing I could do it with the VopCop2Gen COP, but thought their might be a better (easier) way? Cheers!
  2. Hello! I'd like to share with you an interview with two FX artists from Naughty Dog who worked on Uncharted 4: A Thief's End. In it, Neilan Naicker and Ray Popka talk about using Houdini for doing destruction, rigid body fracturing, ingame dynamic rivers/flowmap generation and spawning thousands of running chickens! See full interview here: http://www.sidefx.com/stories/fx-adventures-in-uncharted-4-a-thiefs-end/
  3. Hi, Im writing a COP using the full image filter sample. When I loop thru the image I get 0.0078125 Using a constant white color. If I put the default pic(butterfly) I get the same scale 0 to 0.0078125 Its the same if I cast the value to a float or get the value in plain uchar. Any idea, why? cheers, -A
  4. Hello all, Im trying to composit a set of images using some vops in the comps/img context. This works fine, however if I update the source images and recomposit, it still uses the old textures from memory. Since it uses a vopcop2gen to load the source images, I cannot use the "Reload Sequence" button as with the file input in cops. so I basically have to force clearing the cache. This is possible using the python shell with the "%texcache -c" command. My problem is that this function doesn't seem to be available outside the python shell, as it doesn't seem to work for callback scripts for instance. Does anybody know the proper syntax for using this function in a callback script, or a different workaround? Twan
  5. I simulated a fire with smoke and render it out with the smoke_color smoke_mask fire_color fire_mask planes, all in a exr file. Now I want to use them in the composite part of houdini (which I never used) but I can't understand how to separate and visualize them separately. I supposed the delete node was the answer, but finally it seems to be the wrong answer ... anyone have THE anser? Thanks!
  6. Hi, I just created a simple Lighting and rendering tutorial for Houdini. It's primarily for people who are moving over to houdini from another 3d software and want to get a general understanding of the lighting and rendering workflow. It covers basic topics such as Area lights , Environment lights, HDR , Mantra PBR settings and modifying HDRs using COPs. I also have a few other tutorials on my vimeo page that you can also go through if you are interested. Tutorial regards Rohan Dalvi