jReality - the forum

This sounds like a difficult problem in geometry processing. I'm not aware of any general purpose algorithm to achieve this goal, short of rendering the scene. If you can identify a convex, closed surface in the scene, then it's relatively easy to identify vertices that lie within this surface, and ...

I'm pretty sure the most efficient implementation would be an IndexedFaceSet. You could take the cube as defined in the tutorial here and just change four of the coordinates to convert it into the desired right square frustrum.

Hi. I've just upgraded my Java Version to 1.8.45-14 and ran the introductory tutorials as webstarts to make sure things are still working. Fortunately, the webstarts work -- despite the heightened security settings of the Java VM. However, when I opened up the root appearance in the Navigator (right...

Has anyone had any experience using jReality as a source for "side by side stereo" to a 3D-capable beamer? I would expect that using "cross eye" stereo mode in jReality would provide the right kind of video signal for "side by side stereo" but wonder if the result would not appear stretched out hori...

I would make sure that you have the most recent possible OpenGL driver installed on your Linux machine.

I'm not sure if this is relevant, but there is a VRML2 writer for jReality, but not a VRML2 reader. The VRML2 writer was added in order to be able to ship jReality files to the 3d printing facility in the same building as the math department (3D Labor at TU-Berlin). It would be nice to have a VRML2 ...

Regarding anaglyph stereo and your code: It works for me. To make the effect more visible, I set the diffuse color for polygons and lines to white, and I also doubled the eye separation of the stereo camera. The extra code looks like this: rootNode.setAppearance(new Appearance()); rootNode.getAppear...

Sorry about the delaying in answering.

As far as I know, none of the jReality development team has used the JavaFX package. I checked the JOGL user forum and found this thread which indicates there is a known problem combining JavaFX and JOGL.

The JOGL backend of jReality supports anaglyph stereo (red/cyan, red/green, and red/cyan). It's unfortunately not treated in a standard tutorial. Here's how to access it: 1. The class de.jreality.scene.Camera has a method setStereo(boolean b). You have to call this method with the argument true, on ...

I've recently noticed that my webstarts no longer function correctly on my Macbook Pro laptop since I started running Version 7.45 of Oracle Java. The "left slot" of the jrworkspace plugin system doesn't display (or it displays a fraction of a second and is then overwritten incorrectly by the jogl G...

I have had some problems related to textures on my relatively new Macbook Pro recently which I solved by backing out changes to the jreality jogl package to mid-summer. Please try that first. Then if you still have the problem, please try to isolate example code that displays the problem. I'm not se...

As a core developer that has a pretty good overview of the existing code base ... I am afraid I have disappointing news. I know of no such method for intersection and/or union of two indexed face sets w/o boundary. I think you'd have a better chance of implementing something like this using the half...

Here's what I had in mind. I've edited the existing getAppearance() to try to convert to the desired type. public Object getAttribute(String key, Class type) { startReader(); try { Object val=getAttribute(key); if (val==DEFAULT||type.isInstance(val)) return val; // try to convert to desired type if ...

This is a very unfortunate bug, I agree. As you have discovered, if you use "2.0" instead of "2" it works. It's one of those bugs which I have learned to work-around but after looking into the code for Appearance I think it might be fixable. To be precise, in Appearance's getAttribute() method, one ...

The fastest standard way is to use a PointSetFactory to create an instance of PointSet which you can then put into a scene graph component. See this tutorial for how to do that. For rendering purposes make sure that the Appearance attribute CommonAttributes.SPHERES_DRAW is set to false. Use the attr...