TheDunadan Posted May 17, 2004 Share Posted May 17, 2004 Hi. started with Houdini recently and messed around with VEX yesterday. I tried converting an existing escher-style Renderman Shader: the results are a bit different than the ones i got with BMRT, but anyhow here's the outcome: Once I cleaned up everything I'll post the shader if anyone is intrested Seems to me that VEX has quite a few functions with little documentation or very few to none examples on how to use these properly (at least in the aprentice edition help that is). Is there either some book, website ... with a more complete documentation ? Quote Link to comment Share on other sites More sharing options...
michael Posted May 17, 2004 Share Posted May 17, 2004 hey nice work...I'm always a sucker for NPR work Quote Link to comment Share on other sites More sharing options...
Mario Marengo Posted May 17, 2004 Share Posted May 17, 2004 Very nice! Once I cleaned up everything I'll post the shader if anyone is intrested I'm interested! Seems to me that VEX has quite a few functions with little documentation or very few to none examples on how to use these properly (at least in the aprentice edition help that is). Is there either some book, website ... with a more complete documentation ? Yes. The vex documentation is a little weak, and as far as I know, the docs are the same for all releases (i.e: the apprentice docs are no different than the docs for Master). Cheers! Quote Link to comment Share on other sites More sharing options...
digitallysane Posted May 17, 2004 Share Posted May 17, 2004 Yes, a link to the shader would be welcome! Dragos Quote Link to comment Share on other sites More sharing options...
DaJuice Posted May 17, 2004 Share Posted May 17, 2004 That looks extremely cool. Quote Link to comment Share on other sites More sharing options...
TheDunadan Posted May 18, 2004 Author Share Posted May 18, 2004 Nice to know you like it Added cross-hatching now and once I found my linear algebra book I'll add in a few other things. Quote Link to comment Share on other sites More sharing options...
Jason Posted May 18, 2004 Share Posted May 18, 2004 Yeah, thats cool! I like that! Quote Link to comment Share on other sites More sharing options...
Jason Posted May 18, 2004 Share Posted May 18, 2004 This was my 15 minute attempt at NPR... I love yours; very nice indeed. I'd love to see the shader Quote Link to comment Share on other sites More sharing options...
DaJuice Posted May 18, 2004 Share Posted May 18, 2004 Jason: My eyes! MY EEEEYES!! Quote Link to comment Share on other sites More sharing options...
TheDunadan Posted May 18, 2004 Author Share Posted May 18, 2004 The living NPR-Teapot challange continues @Jason: Would like to have a look at your shader as well, or is a post-effect ?! Here is the VEX-Code: A final version of the shader will follow soon. A few notes: Set the shading quality to ~5 or you get lots of nasty artifacts. td_escher_b.vfl Quote Link to comment Share on other sites More sharing options...
Jason Posted May 19, 2004 Share Posted May 19, 2004 Did you see the hktoon system in the odforce codex > rendering > other section? That was very cool. Quote Link to comment Share on other sites More sharing options...
TheDunadan Posted May 19, 2004 Author Share Posted May 19, 2004 This is really impressive. Possibly I missed it, but I can't find anywhere the code responsible for creating this shading (besides I get a ton of errors when opening of files). Quote Link to comment Share on other sites More sharing options...
Wolfwood Posted May 20, 2004 Share Posted May 20, 2004 TheDunadan: I can't get your shader to work. I tried it with a ground plane and a sphere and I got this. Quote Link to comment Share on other sites More sharing options...
edward Posted May 20, 2004 Share Posted May 20, 2004 Just ignore the warnings when loading it up. The cool thing about hktoon is that it's all done with *SOPs*. Here's my version of it that does it all in the viewport. Load up the attached hip file and maximize the viewport. Make sure realtime is turned *off*. Hit play. It'll go slowly on the first pass as it generates the geometry. After that, you can scrub the playbar and tumble around. hktoon_view.zip Quote Link to comment Share on other sites More sharing options...
TheDunadan Posted May 20, 2004 Author Share Posted May 20, 2004 edward: Amazing Gonna take some time until i figured out how this SOP network works. Very intresting approach on NPR: I was expecting some Shader with possible postprocessing. Houdini just gets more intresting everyday. Wolfwood: Sure you applied my Shader ?! The Frequency settings should be around 100, if you kept it at 1, you'll likely got only a unicolored render output. Here is the sample scene of mine. Later today i'll post the updated VEX code, with some more detailed desciption on the usage. td_cross_2.zip Quote Link to comment Share on other sites More sharing options...
TheDunadan Posted May 20, 2004 Author Share Posted May 20, 2004 Here is the updated Shader. td_escher.zip Quote Link to comment Share on other sites More sharing options...
Wolfwood Posted May 20, 2004 Share Posted May 20, 2004 Wolfwood: Sure you applied my Shader ?! The Frequency settings should be around 100, if you kept it at 1, you'll likely got only a unicolored render output. Here is the sample scene of mine. Later today i'll post the updated VEX code, with some more detailed desciption on the usage. Sorry I found the problem. I had the following alias set in my shell. alias houdini '/usr/bin/gimp' All is good. Quote Link to comment Share on other sites More sharing options...
Jason Posted May 20, 2004 Share Posted May 20, 2004 alias houdini xmessage "dumbass" Quote Link to comment Share on other sites More sharing options...
edward Posted May 20, 2004 Share Posted May 20, 2004 edward: Amazing Gonna take some time until i figured out how this SOP network works. Very intresting approach on NPR: I was expecting some Shader with possible postprocessing. Houdini just gets more intresting everyday. No, it's not my file. I just modified Hwee Kok's file so that it shows up in the viewport instead of only when rendering. Quote Link to comment Share on other sites More sharing options...
TheDunadan Posted May 20, 2004 Author Share Posted May 20, 2004 edward: got that Still it's quite cool idea on creating this look, and i really didn't expect such thing. (I'd have a serious headache on how to recreate this effect with maya) Quote Link to comment Share on other sites More sharing options...
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