Re: [darktable-user] Use of floating point calculations.

2020-01-31 Thread Archie Macintosh
On Fri, 31 Jan 2020 at 21:07, Patrick Shanahan wrote: > ... > the computations withing dt are floating point. number base of the image > file is not a concern. two different points. and any conversion may > introduce differences to original image, ie: the converted image in not an > original,

Re: [darktable-user] Opencl support for DarkTable

2020-01-31 Thread frieder
Am Donnerstag, den 30.01.2020, 22:04 + schrieb Alex: > I'm using Ubuntu 18.04 and I intend to install that on the new PC and > wait until 20.04 has been out a while before upgrading. Although if > I have to use another distro I'll consider it. When you use Ubuntu 18.04 you can consider the AM

Re: [darktable-user] Fontsize with darktable 3.0.0~git325.4538201be

2020-01-31 Thread Simon Wren
Here's a more helpful response: https://www.youtube.com/watch?v=_UWKyNX5rgg On 31 January 2020 at 23:16 Patrick Shanahan < p...@opensuse.org> wrote: * Аl Воgnеr < darktable...@corr.eu.org> [01-31-20 17:46]:

Re: [darktable-user] Fontsize with darktable 3.0.0~git325.4538201be

2020-01-31 Thread Patrick Shanahan
* Аl Воgnеr [01-31-20 17:46]: > Ubuntu 19.10 > darktable 3.0.0~git325.4538201be > > I updated with this repo from 2.6 to 3.0: > > deb > http://download.opensuse.org/repositories/graphics:/darktable:/stable/xUbuntu_19.10/ > / > > Bevor I had settings which worked with my UHD-monitor. Now everyth

[darktable-user] Fontsize with darktable 3.0.0~git325.4538201be

2020-01-31 Thread Аl Воgnеr
Ubuntu 19.10 darktable 3.0.0~git325.4538201be I updated with this repo from 2.6 to 3.0: deb http://download.opensuse.org/repositories/graphics:/darktable:/stable/xUbuntu_19.10/ / Bevor I had settings which worked with my UHD-monitor. Now everything is too big. What do I have to change to get sma

Re: [darktable-user] Use of floating point calculations.

2020-01-31 Thread Patrick Shanahan
* Archie Macintosh [01-31-20 15:37]: > That's interesting, Matt. So, let's say I want to edit an > out-of-camera JPG file in darktable (which can be useful for Fuji > shooters!); is it advisable first to convert the JPG to, say, a 32bit > TIF before editing it? > > mac > > On Fri, 31 Jan 2020 at

Re: [darktable-user] Use of floating point calculations.

2020-01-31 Thread Archie Macintosh
That's interesting, Matt. So, let's say I want to edit an out-of-camera JPG file in darktable (which can be useful for Fuji shooters!); is it advisable first to convert the JPG to, say, a 32bit TIF before editing it? mac On Fri, 31 Jan 2020 at 19:09, Matt Maguire wrote: > > The thing is, you hav

Re: [darktable-user] Use of floating point calculations.

2020-01-31 Thread Matt Maguire
The thing is, you have a limited number of bits per pixel, and human perception of changes in brightness fall off logarithmically as things get brighter. So, to make sure you get the most “bang for your bits”, you want smaller quantisation steps for low intensity and bigger quantisation steps at hi

Re: [darktable-user] Opencl support for DarkTable

2020-01-31 Thread Bernhard
Sherwood Botsford schrieb am 31.01.20 um 18:23: differential electrical rate is 8 c/kWh, (...) or about $150/year In Germany we have 3 1/2 times that rate - 27 Euro-Cent/kWh. That would cost me - in photografic terms - half a new pro-lens/year ... or one third of a monthly net pension of an e

[darktable-user] Use of floating point calculations.

2020-01-31 Thread David Vincent-Jones
darktable's use of floating point calculation, as I understand it, was important for maintaining accuracy through L*a*b processing. Is this still valid as the emphasis in processing shifts to RGB? The reason that I ask this is to question whether RGB modules still are greatly helped by the use

Re: [darktable-user] Opencl support for DarkTable

2020-01-31 Thread Sherwood Botsford
On suspension: On my Mac I have screens go to screen saver in 10 minutes, and shut down after 20. As a sysadmin for a university math department, I had a policy: "Leave them on" My mac uses 160 watts with the screen off, 270 with the screens on If use use an average of 200 w, then we are using

Re: [darktable-user] Opencl support for DarkTable

2020-01-31 Thread Šarūnas
On 1/30/20 4:45 PM, Alex wrote: > It looks like the GTX-1660 is the one to go for, as it seems popular, > supported and relatively inexpensive! > > Specifically this one: Gigabyte GeForce GTX 1660 SUPER GAMING OC 6G. Note it's PCIe 3 (you seem to be building a PCIe Gen4 system). Not sure however