Is there a way to do this directly with osg or does it need a custom implementation? If no, is anybody able to share code for how to render a depthmap with intrinsic camera parameters as a 3d pointcloud using shaders?
Am Mittwoch, 12. Juni 2019 21:18:38 UTC+2 schrieb Trajce Nikolov NICK: > > Hi Lucas, > > I have this working (Lidar scans simulation). If you post snippets I might > be able to help you. You can private msg me too > > Cheers > Nick > > On Wed, Jun 12, 2019 at 2:25 PM Glenn Waldron <[email protected] > <javascript:>> wrote: > >> Lucas, >> Just guessing, but it sounds like you are experiencing a problem knows as >> "shadow acne." There's a good explanation of it here along with some >> possible mitigation ideas. Very common problem when projecting a depth map >> back onto the main camera. >> >> >> http://www.opengl-tutorial.org/intermediate-tutorials/tutorial-16-shadow-mapping/ >> >> >> Glenn Waldron >> >> >> On Wed, Jun 12, 2019 at 6:47 AM Lucas Amparo <[email protected] >> <javascript:>> wrote: >> >>> Hi, everyone >>> >>> I'm trying to render a depthmap using shaders. Very simple, just using >>> the distance from an arbitrary point P to the camera's eye. That map will >>> be deprojected into a pointcloud. >>> >>> The problem is an unexpected (by me lol) behavior from the deprojection. >>> Using a tutorial (can't post links yet), I've done the work but the result >>> seems weird. >>> >>> For example, if I had a perfect wall on the scene, the depthmap is >>> projected similar to a "rinnegan" (do you remember naruto? Is the best way >>> to represent the problem kkkk) >>> >>> Someone already did something similar to that? What's the best way to >>> make a depthmap on OSG? Tutorials, examples, books are very welcomed. >>> >>> Thank you! >>> >>> Cheers, >>> Lucas >>> >>> ------------------ >>> Read this topic online here: >>> http://forum.openscenegraph.org/viewtopic.php?p=76186#76186 >>> >>> >>> >>> >>> >>> _______________________________________________ >>> osg-users mailing list >>> [email protected] <javascript:> >>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >>> >> _______________________________________________ >> osg-users mailing list >> [email protected] <javascript:> >> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >> > > > -- > trajce nikolov nick > -- You received this message because you are subscribed to the Google Groups "OpenSceneGraph Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/osg-users/fdcf0da7-44d8-4c83-beda-42f710fb57ef%40googlegroups.com.
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