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About photex

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  • Birthday 07/03/1980

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  • Name
  • Location
    Venice CA
  • Interests
    houdini, Unity3d, python
  1. New to LA

    heheh. Cheers buddy!
  2. New to LA

    Hello everyone! My wife and I just relocated to LA and are getting our grips on the area (as in we just arrived yesterday). For new years tonight we are going to walk down venice beach and take in the local flavor. If anyone has some suggestions for our weekends or wants to meet up for a beer let me know! Cheers, Chip

    Happy new year everyone!
  4. CHOP_OpenSoundControl

    ha! That would be interesting! Hope this can be of use. Cheers
  5. CHOP_OpenSoundControl

    Excellent, let me know how it goes. I tried to spend some time last night getting the build squared away on OSX. Getting a link error about Python.Framework not being x86_64. If anyone has any OSX HDK experience that can offer advice I'd love to hear it. Cheers, Chip
  6. Howdy folks, the source for my OpenSoundControl CHOP is available now on sourceforge (I'm sure you all saw the post on the mailing list but I thought I'd post here for future googlers). http://sourceforge.net/projects/houdini-osc I personally think you're better off getting the source from SVN but I placed an early release package up there for those who don't want to use source control. My basic teapot example is up there for those with iPhones who'd like to play around. Cheers, Chip -- edit --- fixed my little sourceforge/odforce mixup. ------------
  7. "vector" displacement

    Hi all, I'm messing around with the vector displacement maps that modo can generate and I'm having an initially hard time trying to understand the principle behind such a thing. Well, that is, what I thought was happening isn't. The map created from Modo is a 16-bit rgb uncompressed tif. I'd attach the test image but it's rather large. I'd be happy to put it up on my website if you'd like. Since the default is 0.5 per per channel I'm assuming it's not too different from a tangent space normal map, but since they look so different I'm certain that my assumption is incorrect and generally speaking I'm not getting a 1 to 1 translation in my tests. Does anyone have any insight for me, or at least know off-hand a good pdf or webpage on the subject? Cheers, _chip
  8. AHA! My familiarity with Hscript damned me as I try to do fancy things. The trick is to alt-e the field and then just treat the expression as a python function body: list = hou.hscriptExpression("pointlist(\"../bevel_group\",\"bevel_group\")").split() return "p%s-%s" % ("-".join(list),list[0])
  9. Hello, I'm trying to use a python expression to convert a point group into a string that can tell the polybevel sop to bevel edges instead of points. If I select the edges manually and polybevel things work as normal. But when I try to use this expression: `"p%s" % "-".join(hou.hscriptExpression("pointlist(\"../bevel_group\",\"bevel_group\")").split())` and I get an error that the group name is invalid. I'm guessing that it has something to do with the quotes that get returned since if I paste the evaluated string into an identical sop I get the bevel as expected. Any advice would rock. I know that I still need work out how to append the first point to the end of that list, but I need this expression to at least evaluate before I spend more time on that. Cheers!
  10. Holy crap. This movie blew my mind as a kid! <robot_voice>"I do not leak. You do."</robot_voice>
  11. Playing with Radiohead point clouds

    Ah! Could have saved myself some time!
  12. Playing with Radiohead point clouds

    Thanks and you're welcome. The python sop is basically nothing. Just read a line, split by comma, create a point and if requested set the value of a point attribute. I forgot to include the audio snippet I used in the couple that use CHOPs. It's expected in HouseOfCards/audio/ Cheers hoc_loop.mp3
  13. Hello! Not sure who else has noticed that Radiohead released a chunk of the data they used for their last music video. It's a couple thousand csv files that are a point cloud of Thom Yorks face singing and so on. I don't know what the name of the tech is but they used a laser to record him. Been having some fun with it and have made couple of interesting tests but this is the one I'm enjoying the most so far. Takes forever to render so it's only a small section of it. The "bloom" is controlled by audio from the song itself using CHOPs to filter and export vol/amplitude to a threshold parameter that filters out points by intensity. I wrote a python sop to read in the csv file and you can reassign the intensity parameter to whatever point attribute you like. By default though the intensity will just go to w. Next on my list is a maximum point parameter that will *ideally* keep the point counts the same between frames, and I'd like to try updating point positions instead of loading new geometry each frame. But the interesting side effect of using new geometry each time is how much it looks like stop motion animation. I've attached the HIP files that I've used so far. The archive unpacks to HouseOfCards/ with two subdirectories hip/ and otls/. The files expect there to be a data directory that contains the csv files which can be aquired from here: http://code.google.com/p/radiohead/downloads/list and the whole site that does explaining that I haven't bothered to spend much time reading: http://code.google.com/creative/radiohead/ Cheers HOC_4.mov chip_hoc.tar.gz
  14. Happy birthday...

    Thanks a million guys! My wife bought me a dog! woo-hoo!!