lisux Posted February 23, 2007 Share Posted February 23, 2007 Hi everybody i habeen playing around with the phantom parameters of the objects and it seems to not work properly or i am missing something. It is supopose that phantom objects are objects that are not rendered but are used by raytracing for relection/refractions and shadows. But when I render an objects with the phantom flag it is rendered as usual, when it is suppose that the object will not apperear in the render but for example will cast contact shadows due to ambient occlusion. So how can I get contact shadows over a ground but rendering only the ground, the rest of the objects only will be used for GI calculations in this case. Thanks Quote Link to comment Share on other sites More sharing options...
stu Posted February 23, 2007 Share Posted February 23, 2007 Weird, it worked for me. phantom.hip Quote Link to comment Share on other sites More sharing options...
rdms Posted February 23, 2007 Share Posted February 23, 2007 But when I render an objects with the phantom flag it is rendered as usual, when it is suppose that the object will not apperear in the render but for example will cast contact shadows due to ambient occlusion.So how can I get contact shadows over a ground but rendering only the ground, the rest of the objects only will be used for GI calculations in this case. Thanks In addition to toggling on the phantom flag, did you set the value to 1? Quote Link to comment Share on other sites More sharing options...
Jason Posted February 24, 2007 Share Posted February 24, 2007 I have an embarrassing admission... ...after all these years of using Houdini and PRISMS before that, while understanding perfectly how it works, I never truly understood why its called "phantom'. I thought sure, the objects are there but not really there etc, but now I really understand that ghosts, phantoms, vampires are only visible in mirrors. That sound you hear *there* is the sound of a giant penny dropping. 1 Quote Link to comment Share on other sites More sharing options...
sibarrick Posted February 25, 2007 Share Posted February 25, 2007 I think it would have been much better if they had called it the vampire setting . Although as i understand it the one place you can't see a vampire is in a mirror, maybe phantoms are the opposite to vampires..... off to google search. Quote Link to comment Share on other sites More sharing options...
lisux Posted February 26, 2007 Author Share Posted February 26, 2007 Weird, it worked for me. phantom.hip Thanks stu. Yes it seems to work but i have been made some test with and object included in an HDA so maybe i am missing something into the HDA itself. Anyway thanks for the example. And I think that another option will be to call to this feature "Spirit", it is there for somethings but it isn't physically Quote Link to comment Share on other sites More sharing options...
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