Re: [COOT] Coot v1 rotation smoothness (or lack thereof)

2022-05-19 Thread Paul Emsley

On 19/05/2022 16:54, Phil Jeffrey wrote:
After (finally) getting Coot to work install via Homebrew I find that 
the rotation smoothness is much, much worse compared to v0.9.8.1, when 
the window is enlarged via the buttons at the lower right of the menu 
from 1800x1500 -ish to 2900x2300 -ish which is a more useful size.
This seems almost independent of map radius (within reason) or if I 
have just a simple difference map with relatively few lines drawn.


I tried playing with shader settings but Basic and Plain do not 
increase draw speed and they shrink the drawn area into 1/4 of the 
area of Fancy.  And they don't draw any faster in that smaller viewport.



Coot 1.0.06-pre

iMac Retina 5K, late 2015, High Sierra

Any suggestions for tweaking ?



Hi Phil,

Congratulations on your compilation.

You can investigate the FPS using the Draw -> Frames/Sec...

Using the tutorial model and data, I get about 4FPS when I have focus in 
the graphics window (and bizarrely about 8FPS when focus is in (say) the 
Display Manager). And that is largely independent of the molecule drawn.


This has been a topic of conversation (amongst other things) on github:

https://github.com/pemsley/coot/issues/33

This has been one of my major concerns over the last 2 months.

Charles and I have been doing some reading - it seems that there are 
other gtk-based programs that are slow on MacOS.


The resize buttons were added because the normal resizing method (using 
the window manager) doesn't work right. I haven't blogged the window 
resize buttons, but Lucrezia tweeted it:


https://twitter.com/lulu_catapano/status/1519227319788965888

The Basic vs Plain vs Fancy mode framebuffer resizing issue should have 
been fixed. I will need to check that.


Paul.



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[COOT] Coot v1 rotation smoothness (or lack thereof)

2022-05-19 Thread Phil Jeffrey
After (finally) getting Coot to work install via Homebrew I find that 
the rotation smoothness is much, much worse compared to v0.9.8.1, when 
the window is enlarged via the buttons at the lower right of the menu 
from 1800x1500 -ish to 2900x2300 -ish which is a more useful size.
This seems almost independent of map radius (within reason) or if I have 
just a simple difference map with relatively few lines drawn.


I tried playing with shader settings but Basic and Plain do not increase 
draw speed and they shrink the drawn area into 1/4 of the area of Fancy. 
 And they don't draw any faster in that smaller viewport.



Coot 1.0.06-pre

iMac Retina 5K, late 2015, High Sierra

Any suggestions for tweaking ?

Phil Jeffrey
Princeton



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