Hi,
do you know why it's happening and how to get rid of it?
That's due tessellation and related to the extreme distortion of the pannini projection.
I will consider adding settings for manually increasing the internal tessellation.
It start i have some twitch , fiew second and after that, it works good...
What exactly do you mean with 'twitch'?
A rendering performance problem during blending?
The 1.19 uses WebGL and framebuffers for the pano-blending, that needs a bit more GPU resources (but therefore allows 'correct' blending without artifacts and display errors). But so far I haven't seen a system that performance more worse due this.
Btw - with what system and GPU do you test?
For comparison maybe test with 'html5=css3d' - if that performs better, then the low WebGL-performance of the system is the problem.
Best regards,
Klaus