It seems since the so called "optimizations" from Sean D'Epagnier OpenCPN does not run as before. Why it is not possible to discard them?
Gerhard, It depends largely on what graphics board your machine has whether opengl and texture cache work well. What I know is that optimizations are working on boards such as NVIDIA Geforce 540m, but certainly Texture cache is not working well on the earlier Intel HP Graphics boards.
The reason I know this is that I have both boards on this laptop
(which requires a little add'l power unfortunately - did not know that at purchase) but does give me a way of configuring software
to use one board or the other. I have used Opencpn
with each Graphics Board (Nvidia and Intel HP) and the Nvidia plays much better with Opencpn Opengl. With the Intel HP Graphics board I definitely cannot use Texture Mapping, however I believe it does use Opengl....it would need to go back to one of the previous forum threads (Beta config) to confirm that (probably 3.3.1824) where I left a post with my experience.
The point is that the software
must develop with the hardware/software/driver advances (and Dave and Pavel are making it responsive to the graphics boards used as well as we learn what works and does not work.)
I am very sorry you have had so much trouble with MAC opengl. You could just use the settings to disable various features of it (which I do with the Intel HP Graphics board) which hopefully makes Opencpn run better. Alternatively you could just modify Opencpn to eliminate Opengl entirely, but perhaps some other MAC user will have a more current
machine that works well?
In any event it would be really nice to have a recent Opencpn version for MAC with your specializations, whatever configuration you decide! It will build a bigger MAC user base and perhaps attract some additional programming talent focused on the MAC. We're depending on you.