tag:blogger.com,1999:blog-5626905874114803923.post7116413126026778721..comments2024-03-26T00:48:33.099-07:00Comments on FX Thinking: How to create a Magnetic Vector Field in Houdini - TutorialUnknownnoreply@blogger.comBlogger27125tag:blogger.com,1999:blog-5626905874114803923.post-39332282674695035532020-06-04T15:58:02.651-07:002020-06-04T15:58:02.651-07:00hi !
I am not familiar with the .fga format. Can y...hi !<br />I am not familiar with the .fga format. Can you elaborate ?fxthinkinghttps://www.blogger.com/profile/01339887548168062401noreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-31809665906884001782020-05-19T05:46:25.947-07:002020-05-19T05:46:25.947-07:00Hi, i wanted to ask - how to render a .fga vector ...Hi, i wanted to ask - how to render a .fga vector field from this setup? Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-76110043121063500782020-01-22T12:31:15.159-08:002020-01-22T12:31:15.159-08:00thank you ! I'm super happy you find it useful...thank you ! I'm super happy you find it useful.fxthinkinghttps://www.blogger.com/profile/01339887548168062401noreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-69839376203283911732019-04-02T09:57:26.880-07:002019-04-02T09:57:26.880-07:00hello mr Pepe, just found this Gold Mine of a blog...hello mr Pepe, just found this Gold Mine of a blog, ty for your knowledge. I've been looking for this for a long time !!!! <br />Anonymoushttps://www.blogger.com/profile/17353458686994574260noreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-39429956324386876032019-03-06T10:51:07.533-08:002019-03-06T10:51:07.533-08:00I truly apology for not seeing this before..
I'...<br />I truly apology for not seeing this before..<br />I'll write a little addendum with a few ideas on how to do that.fxthinkinghttps://www.blogger.com/profile/01339887548168062401noreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-48685446760814548712019-03-06T10:50:51.933-08:002019-03-06T10:50:51.933-08:00I truly apology for not seeing this before..
I'...I truly apology for not seeing this before..<br />I'll write a little addendum with a few ideas on how to do that.fxthinkinghttps://www.blogger.com/profile/01339887548168062401noreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-2340694009252775542019-01-23T09:22:49.542-08:002019-01-23T09:22:49.542-08:00Hey!
Well it was always like that. Even more, VDB...Hey!<br /><br />Well it was always like that. Even more, VDB was way slower to render in Mantra than a standard volume (not sure if it's still the case. On a bright side it needed a way smaller memory footprint which was a very good thing at that time. Nowdays the standard volume can be loaded on per-tile basis and the amount of RAM we can get access to is also higher).<br />Yes, Volume Compress SOP is what I was referring to. It may generate 10-30 times lighter volume without significant visual quality loss.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-68784057785866792052018-12-26T16:56:06.471-08:002018-12-26T16:56:06.471-08:00Hi Anonymous !
I totally agree with you. I was sur...Hi Anonymous !<br />I totally agree with you. I was surprised to see how much faster the native Houdini Volumes are now. Keep in mind this article was written in 2015.<br />About the lossy compression, I believe this node should do the trick, if you're ready to lose a little bit of data.<br />https://www.sidefx.com/docs/houdini/nodes/sop/volumecompress.html<br />fxthinkinghttps://www.blogger.com/profile/01339887548168062401noreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-41720857620046588812018-12-17T02:43:59.703-08:002018-12-17T02:43:59.703-08:00> VDB have an optimized memory structure that a...> VDB have an optimized memory structure that allow a very fast access to voxels data<br /><br />Are we comparing the access time of VDB to Houdini volumes? I'm pretty sure Houdini volumes are faster in that regard.<br /><br />> plus they are sparse so they have a lower memory foot print compared to Houdini Volumes.<br /><br />True. But the problem is that Houdini volumes are almost sparse too (constant tiles). Add a pretty good lossy compression to it and we have a way smaller memory footprint. Unfortunately not that many people know that this machinery exists and how it works and thus don't use it.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-72226125355927556212018-11-13T20:33:26.301-08:002018-11-13T20:33:26.301-08:00Sometime it becomes very hard to find a well writt...Sometime it becomes very hard to find a well written and well established bog which give you correct and useful information. However, I found this blog and got some relevant information which are really helpful for me.<br /><a href="https://diymagnet.com/" rel="nofollow">แม่เหล็ก แรง สูง</a>Anonymoushttps://www.blogger.com/profile/11089787037618856469noreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-10148614472166688392018-11-09T09:16:58.323-08:002018-11-09T09:16:58.323-08:00thanks for sharing. "Converting the pseudo co...thanks for sharing. "Converting the pseudo code in VEX is probably easier than writing the pseudo code itself."<br />Lol, speak for yourself, I feel like I miss decades of learning before being able to write that code! I have no idea how you can figure out which command to use on each line it just blow my mind! I read the doc for each command and I just don't understand how one could guess from the doc to use the commands the way you did!Strobhttps://www.blogger.com/profile/08074063909852812555noreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-33943089604474648602018-09-16T06:55:39.374-07:002018-09-16T06:55:39.374-07:00Im trying to figure out how to use this approach t...Im trying to figure out how to use this approach to export to fga via the ROP Vector Field from Game Tools. Any pointers?Rasmusnoreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-86310580411797463382017-11-28T08:48:13.080-08:002017-11-28T08:48:13.080-08:00Amazing guide, thank you for this great setup. I h...Amazing guide, thank you for this great setup. I have been now wondering how to drive particles up these lines as filaments, wider base on the surface of the sun source, and getthing thinner and more concentrated as they go up following the vector guides, do you have any pointers on how i could achieve this? Best regardsDiornhttps://www.blogger.com/profile/11410675926992453616noreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-84526791946658483632017-10-26T05:09:11.418-07:002017-10-26T05:09:11.418-07:00Very good tutorial ! But I am kind of stuck now, I...Very good tutorial ! But I am kind of stuck now, I'd like to drive particles along that vector field and I don't find how. Don't know if I have to convert the volume to be driving particles in a POP, would you point me in the right direction ?<br />Thanks for your work :)Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-78382348215896894982017-07-19T09:32:57.730-07:002017-07-19T09:32:57.730-07:00That's great man ,Thank you :)That's great man ,Thank you :)Jokerhttps://www.blogger.com/profile/14111551419200144588noreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-48824031754707511292017-04-18T11:02:20.905-07:002017-04-18T11:02:20.905-07:00Hey Alessandro, came across your tutorial, really ...Hey Alessandro, came across your tutorial, really good!! long times since Framestore :) I hope you still remember<br />thanks<br />AAnonymoushttps://www.blogger.com/profile/06506893526691712802noreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-27955905142230701562017-01-18T16:23:43.918-08:002017-01-18T16:23:43.918-08:00I don't think you need to divide by the invers...I don't think you need to divide by the inverse square of the distance because you've already normalized the vector (which is the same as dividing by the length). My crappy pseudo-code follows:<br /><br />V is a vector that extends from a pole to a voxel<br /><br />d = length(V)<br />n = normalize(V)<br /><br />n / d == V / d / d == V / (d*d)darbyhttps://www.blogger.com/profile/13413676257771106281noreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-3812522977443798392016-02-20T13:15:59.795-08:002016-02-20T13:15:59.795-08:00So true ! Sometimes the visualizers show stuff tha...So true ! Sometimes the visualizers show stuff that it's even cooler than the fx itself. Upsetting ! ahah :)fxthinkinghttps://www.blogger.com/profile/01339887548168062401noreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-27413644106506101052016-02-12T06:17:01.905-08:002016-02-12T06:17:01.905-08:00It's also fun looking at that volume with the ...It's also fun looking at that volume with the various volume visualizers. Sweeping through the volume with the Trail visualizer is somewhat hypnotizing.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-14905055011196707682016-01-27T01:33:28.393-08:002016-01-27T01:33:28.393-08:00I just attached an example hip file at the bottom ...I just attached an example hip file at the bottom of the article. I hope it helps.fxthinkinghttps://www.blogger.com/profile/01339887548168062401noreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-45574518706570784092016-01-27T00:04:51.068-08:002016-01-27T00:04:51.068-08:00I didn't know that ! Thank you a ton for this ...I didn't know that ! Thank you a ton for this info !fxthinkinghttps://www.blogger.com/profile/01339887548168062401noreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-92198002439769895032016-01-08T18:49:18.872-08:002016-01-08T18:49:18.872-08:00have been looking for something like that for a wh...have been looking for something like that for a while, thanks a buncht043https://www.blogger.com/profile/16684568141559108908noreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-79041333115100992932016-01-07T07:38:15.213-08:002016-01-07T07:38:15.213-08:00This is an amazing effect...I'm getting stuck ...This is an amazing effect...I'm getting stuck trying to re-create it...Would it be possible to share a HIP file?Anonymoushttps://www.blogger.com/profile/10255219219939843067noreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-42013592355189942002015-11-09T16:33:23.083-08:002015-11-09T16:33:23.083-08:00Hey dude, I've been wondering how to do this. ...Hey dude, I've been wondering how to do this. Absolutley amazing.Andrewhttps://www.blogger.com/profile/15291610550863185184noreply@blogger.comtag:blogger.com,1999:blog-5626905874114803923.post-70143902499635322222015-09-28T13:04:15.605-07:002015-09-28T13:04:15.605-07:00nice work, as always.nice work, as always.TOADSTORMhttps://www.blogger.com/profile/17470902047051761033noreply@blogger.com