jReality - the forum

You can send it to gunn [@] math.tu-berlin.de.

This behavior in the JOGL backend is not correct; even if the normals of some faces are flipped with respect to others, the default behavior is to shade all faces, back- and front-facing, the same. So it will be good to get a copy of this data and see why this is not being rendered as it should. In ...

What if there are several pieces of geometry with the same (x,y) coordinates but different z? Do you want only the "first" one? Then you'll also need to define what you mean by "first". Or you can get a whole list. Look at the class de.jreality.scene.pick.AABBPickSystem. It can be used to calculate ...

I've just upgraded the JOGL backend so that offscreen rendering now uses GL frame buffer objects (FBO's) instead of pbuffers. The advantages are: it uses the same context as the one the viewer uses (so many funny bugs are avoided), it anti-aliases (4x4 linear subsampling), it can do big pictures w/o...

Here's another idea. Use an instance of GLJPanelViewer, which is a subclass of JPanel. You can then add the viewing components of other viewers. I've worked out a simple example. Begin with the tutorial example de.jreality.tutorial.GLJPanelViewerExample and add the following code at the end: System....

First, have you considered using undecorated frames to display the different views? They have no border and can be placed arbitrarily, to simulate the effect you are looking for. If you're still interested in pursuing the JOGL backend modification, read on: It should be possible to "extend" the JOGL...

It looks like the coordinates of your scene may be quite small. In that case, I would suggest you try to adjust the appearance attributes TUBE_RADIUS and POINT_RADIUS to be .001 (for example) instead of .1. Also, you may need to set VERTEX_DRAW to be true in order to see the vertices. Finally, I'd e...

Cool! I didn't think about that A non-perspective camera is essentially "infinitely far away", and a rotation around an infinitely distant point can't be anything else but a translation! That fixes the problem without having to write a new tool at all. :D

As I mentioned in a previous post, when I suggested saving a "screenshot" in jReality rather than an "image": the main advantage, as I understand it, of using offscreen rendering is the ability to specify arbitrary sizes. If, in fact, as you suggest, it's possible to set the canvas size arbitrarily ...

One more idea on offscreen rendering: if the problem is in the display list (glCallList()) you can disable display lists by the following call to the top-level appearance ap:

If the offscreen rendering doesn't work, have you tried the screenshot option? It's accessible under the menu item "File->Export->Screenshot". As the name implies, it saves a copy of the current JOGL viewing component. That means you can't make save images larger than your display, whereas offscreen...

The offscreen rendering feature of the JOGL backend in jReality is one which I use quite a lot, so I'm a little surprised to hear that it's causing problems. I've even been working to improve the quality of the anti-aliasing, which is currently not working when you save the alpha channel. You can pe...

Just to make sure we understand each other: Please confirm that you get the following printout to stderr (of course with different values) before the program exits: setting global aa factor to 4.0 Tile size x = 1212 Tile sizey = 900 Image size = 3636:2700 Allocating new pbuffer Also, the call the ca...

Neo, Some suggestions, and questions: Try rendering w/o alpha. Does it print anything to stderr like "Tile size = ..." or "Allocating pbuffer" before exiting? What kind of system are you rendering on? How big an image were you rendering? If you have the source code (i.e., are a developer), you could...

(Am I losing my mind, or did the images in the original post change over-night? I remember a blue icosahedron, for example.) Anyway, the pictures that are there now helped me to see that there is something else going on here. The drag tool that is built in to jReality is not a translate tool, but ra...