How to catch mouse clicks on a geometry in the guiNode?

[pspeed]

@Steve16384

for some reason the guiNode.collideWith(ray, results); doesn’t return any results.

Then the ray you are using is wrong. We can’t see it, though, so it’s hard to say why.

Something like Lemur also provides picking ‘out of the box’ for any scene graph element, whether in the 3D scene or in the guiNode. (It even supports any custom viewports you might want or whatever.)

A tutorial here on how to use Lemur for scene picking:

Lemur Gems #3 : Scene picking

Lemur has a robust picking subsystem that uses JME’s standard ray collision code. In this Lemur Gem, I add simple mouse picking to the app already built in Lemur Gem #1 and Lemur Gem #2 When you initialize Lemur’s GuiGlobals, it automatically adds the MouseAppState that does scene picking. It also adds the guiNode and rootNode to the pickable scene roots automatically. This demo uses that automatic setup. It is also possible to use the MouseAppState without the rest of Lemur but for simplic…

It’s in the 3D scene but that works with the guiNode also. (It’s what the normal Lemur GUI elements use internally already.)

Here is the main page for Lemur in case it piques your interest:
http://jmonkeyengine-contributions.github.io/Lemur/

…else post your code so we can spot what’s wrong.