[Chimera-users] Apple M1 chip

[Tom Goddard]

Thanks ML!

Silhouette edges in Chimera are quite slow using I think 5 extra rendering passes, so about 5 times slower than without silhouette edges.  If we get an Apple M1 machine we will try it -- possibly its driver is doing that particular rendering operation in software making it even much slower.  We won't be able to fix that.

You might want to give our new program ChimeraX a try.  It's silhouettes add almost no extra rendering time.  ChimeraX has most of Chimera's capabilities and will eventually replace Chimera.  ChimeraX like Chimera does not have a native Apple Silicon build.  We use 50 third party Python packages and all of those will have to have native Apple Silicon CPU distributions before we can provide that.  But the Intel emulation on Apple Silicon is supposed to be very fast.

	Tom


> On Feb 10, 2021, at 8:00 PM, 163 <zjjxjml6226 at 163.com> wrote:
> 
> Hi Elaine and Tom,
> I found that if I turn off the silhouettes effect, it is good to rotate the maps smoothly in UCSF Chimera using M1 Mac!
> ML
> 
>> On Feb 1, 2021, at 11:32, Elaine Meng <meng at cgl.ucsf.edu> wrote:
>> 
>> hi ML,
>> You can certainly make animations in ChimeraX, including with 2D labels, morphing, rotations, zooming, moving from one position to another, etc.  However, currently you would have to write a ChimeraX command script to do it instead of using a graphical interface.  Of course, we understand it takes more time to learn the commands than to use a graphical interface!  If you just want to make a simple spin movie (one rotation), however, ChimeraX has an icon to do that with a single click.
>> Best,
>> Elaine
>> -----
>> Elaine C. Meng, Ph.D.                       
>> UCSF Chimera(X) team
>> Department of Pharmaceutical Chemistry
>> University of California, San Francisco
>> 
>>> On Feb 1, 2021, at 11:12 AM, 163 <zjjxjml6226 at 163.com> wrote:
>>> 
>>> Hi Tom,
>>> Sorry for that, I mean it is slower, if use chimera in M1 Mac, to open like 3 maps and set step to 1, compared to use chimera in inter Mac.
>>> Still some wonderful tools need to use in chimera, like Animation to make movie, if ChimeraX will also have this function, that will be great!
>>> Thanks!
>>> ML
>>> 
>>>> 2021年2月1日 上午10:58，Tom Goddard <goddard at sonic.net> 写道：
>>>> 
>>>> Hi ML,
>>>> 
>>>> We do not have a Chimera version compiled for an Apple M1 processor.  Did you mean Chimera is slow on the M1?  (you said "old version is quite on M1 Mac" seemed to leave out an important word!)  Others have reported the speed of Chimera / ChimeraX on M1 is comparable to Intel processor Macs.
>>>> 
>>>> Chimera depends on 50 third party packages that would all need to be available for M1 to make a native Chimera version.  We do not plan to attempt that.  Our development work is all on our new program ChimeraX, only critical maintenance is done on Chimera.  At some point in the future we will probably make a native M1 ChimeraX.
>>>> 
>>>> 	Tom
>>>> 
>>>> 
>>>>> On Jan 30, 2021, at 12:02 AM, 163 <zjjxjml6226 at 163.com> wrote:
>>>>> 
>>>>> Hi There,
>>>>> Is there a version that is suitable for Apple M1 Mac?
>>>>> I found the old version is quite on M1 Mac.
>>>>> Thanks!
>>>>> ML
>>>>> 
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