Posted by FieryToken on Jan 29, 2021; 8:59am
URL: https://forum.jogamp.org/OpenGL2-Can-t-render-points-with-color-tp4040994p4041004.html

Yes so as you said i removed these two parts:

        if(!drawContext.isPickingMode()){
            drawContext.beginStandardLighting();          //<---- Evil (｀Д´*)
        }

        if(!drawContext.isPickingMode()){
            drawContext.endStandardLighting();          
        }

And then i also made my own Layer like this:

public class PCloud3DTilesLayer extends AbstractLayer {

    PCloud3DTiles pointCloud;

    PCloud3DTilesLayer(PCloud3DTiles pointCloud){
        this.pointCloud = pointCloud;
    }

    protected void doRender(DrawContext drawContext) {
        if(pointCloud != null){
            pointCloud.render(drawContext);
        }
    }
}

My PCloud3DTiles basically looks kind of like this: https://worldwind.arc.nasa.gov/java/tutorials/build-a-custom-renderable/

Event though you dont need to implement the Renderable Interface anymore if you use your own Layer.
And thats pretty much what fixed it for me :)