Guest ravin Posted August 8, 2010 Share Posted August 8, 2010 I am attaching a very simple file where I have a sphere and I am attaching an isoOffset node and assigning a bollowy smoke shader to it. How can I attach a noise texture to displace the smoke shader and add ray marching to achieve more of a volumetric look. I am trying to achieve a puffy smoke look by adding raymarching to this setup. Just like the second file attached : volume_smoke.jpg thanks, cloudRendering.hip Quote Link to comment Share on other sites More sharing options...
ikarus Posted August 8, 2010 Share Posted August 8, 2010 That image was achieved using the smoke dynamics solver, you can add noise to a volume through a number of methods such as a volume vop but it isn't going to look like that really, I'd suggest watching the peterquint videos on smoke http://vimeo.com/9508767 Quote Link to comment Share on other sites More sharing options...
Guest ravin Posted August 8, 2010 Share Posted August 8, 2010 (edited) That image was achieved using the smoke dynamics solver, you can add noise to a volume through a number of methods such as a volume vop but it isn't going to look like that really, I'd suggest watching the peterquint videos on smoke http://vimeo.com/9508767 Hey, I have seen his videos and they are certainly helpful but my challenge is achieve somewhat that same look with particles. My simulation is based on particle systems and I want to render smoke/cloud with the particle system. I was following this link: http://www.sidefx.com/docs/houdini10.0/rendering/volumetricrendering and was wondering how can I achieve that same look. thanks, Edited August 8, 2010 by ravin Quote Link to comment Share on other sites More sharing options...
mangi Posted August 9, 2010 Share Posted August 9, 2010 Hi There raven, Well I got a second here at work . There Is a assum file that is on the shelf smoke stack that really gives you a good break down of what I am sending here. I notice that you are not using the correct iso volume in your hip. I see you hip is not a NC. anyway. here you are mangi popsmoke.hipnc Quote Link to comment Share on other sites More sharing options...
Guest ravin Posted August 9, 2010 Share Posted August 9, 2010 (edited) Hi There raven, Well I got a second here at work . There Is a assum file that is on the shelf smoke stack that really gives you a good break down of what I am sending here. I notice that you are not using the correct iso volume in your hip. I see you hip is not a NC. anyway. here you are mangi Hey buddy, When my objects move I can see the noise move along with them in camera space. Is there anyway I can modify default shader to have noise stick to object space. Or do you have any other technique to render clouds? thanks Edited August 12, 2010 by ravin Quote Link to comment Share on other sites More sharing options...
Guest ravin Posted August 12, 2010 Share Posted August 12, 2010 Hey buddy, When my objects move I can see the noise move along with them in camera space. Is there anyway I can modify default shader to have noise stick to object space. Or do you have any other technique to render clouds? thanks Any new techniques or suggestions?? Quote Link to comment Share on other sites More sharing options...
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