Created attachment 800 [details] Reproducer for the flickering When resizing, the whole rendering flickers at each resize (verified on Linux (GTX1070) and Windows (AMD WX7100) ). Attached is a simple reproducer.
Your reproducer is wrong, please look at my example: https://jogamp.org/wiki/index.php/Rudimentary_standalone_example_using_the_fixed_pipeline_by_Julien_Gouesse You shouldn't create the animator inside the GLEventListener and you don't even start your animator, it can't work.
Created attachment 801 [details] Reproducer with correct Animator
Sorry, I commented it out to check the difference, and forgot to re-enable it before submitting, my bad. I uploaded a new reproducer that creates the Animator in the main, and the problem is still reproduced.
Hi, is the reproducer up to snuff now ? Can I do anything else to help you reproduce this issue ?
The reproducer seems to be correct now. I've not investigated yet but maybe it can't be fixed within JOGL, especially if the root cause comes from AWT. I assume that the problem doesn't occur when using a pure NEWT GLWindow without AWT.
Confirmed This resize flickering is also visible (more or less) with - com.jogamp.opengl.test.junit.jogl.demos.es2.newt.TestGearsES2NewtCanvasAWT - com.jogamp.opengl.test.junit.jogl.demos.es2.newt.TestGearsES2NEWT Animator doesn't make a difference, nor v-sync. Looks like our delayed off-thread resize operation creates this visual artifact while in process, i.e. the blanking (clear buffer) is dominant. Not sure whether I should spend time on this cosmetic..
Moving product to Newt, component core. AWT (parent window) detail is unrelated here.
Removing flickering is now a feature. We have to see whether this can be done at all, considering our current delayed resize implementation and for which version. Putting this on 2.5.0 for now.