art3mis Posted November 3, 2016 Share Posted November 3, 2016 Hi Have gone thru both tutorials listed at the end of this post but am confused by one thing. Is the Wedge ROP strictly for rendering geometry (ie vdb's or bgeo files) or can it also be used to render images as well? I thought it could be used as sort of a batch Flipbook renderer. But in these examples you need to define a SOP path which points to either a specific piece of geometry or vdb. https://archive.sidefx.com/images/stories/tutorials/wedge_ROP/wedge.mov Quote Link to comment Share on other sites More sharing options...
art3mis Posted November 3, 2016 Author Share Posted November 3, 2016 (edited) Answering my own question Watching towards the end of this https://archive.sidefx.com/images/stories/tutorials/wedge_ROP/wedge.mov I see all you need is to use a Mantra node as an Output Driver. But, what would be even more useful (and much quicker)is to render out scene previews or screen grabs, similar to the way the Flipbook works. Especially since the primary use of the Wedge ROP is to check your simulations. Any Houdini experts know if there is a way to do this? Edited November 3, 2016 by art3mis Quote Link to comment Share on other sites More sharing options...
goldleaf Posted November 3, 2016 Share Posted November 3, 2016 You can definitely use the Wedge ROP to generate flipbooks (via OpenGL ROP), the SOP path is the parameter you're wedging, but you can drive any driver with the Wedge ROP. Here's an example, hope it helps! wedge_flipbook.hipnc 1 Quote Link to comment Share on other sites More sharing options...
Yon Posted November 3, 2016 Share Posted November 3, 2016 OpenGL ROP all day Quote Link to comment Share on other sites More sharing options...
art3mis Posted November 3, 2016 Author Share Posted November 3, 2016 Thanks, yes looks like OpenGL ROP and I will be close friends:) Quote Link to comment Share on other sites More sharing options...
art3mis Posted November 3, 2016 Author Share Posted November 3, 2016 (edited) Thanks...will be very useful! Using comp nodes aren't yet a part of my vocabulary but I'm realizing how powerful this is once you can start adding multiple Wedge ROPs inside a ROP network! Edited November 3, 2016 by art3mis Quote Link to comment Share on other sites More sharing options...
nathanapffel Posted March 12, 2019 Share Posted March 12, 2019 On 11/2/2016 at 7:55 PM, goldleaf said: You can definitely use the Wedge ROP to generate flipbooks (via OpenGL ROP), the SOP path is the parameter you're wedging, but you can drive any driver with the Wedge ROP. Here's an example, hope it helps! wedge_flipbook.hipnc This is an awesome idea. Unfortunately the final output of the provided file is black. I can't figure out how to fix it quite yet as i'm not comfortable with cops. in the image context each transform seems to be moving it's image out of its own canvas resulting in a black rectangle. then all the black rectangles are merged together in the layer node resulting in black image. i don't know if there was a change in houdini that broke this file or what. I'm confused about why the transforms aren't transforming the image frame along with the image. the attached images show the result i get from the provided file without changing anything. thanks! Quote Link to comment Share on other sites More sharing options...
nathanapffel Posted March 12, 2019 Share Posted March 12, 2019 I got it to work by exporting .png file instead of .jpg. I'm still confused by cops. Quote Link to comment Share on other sites More sharing options...
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