@lichtwerk I'm loading the image sequences into a Movie CLip node in the compositor.
As a comparison: Do have the same drastic slowdowns if you load the sequence as an Image Strip into the…
First, I should say that I am not doubting that you are seeing unacceptable performance. And I am hoping we can improve things. So don't take any of the of the following questions as being…
I've updated the chart with some more data points and it's clear the change in CS at least is O(n^2)
I've done a bit more testing and plotted the results. The cell in red is, I think, an anomaly as I'd already openeed that file the day before so it might have cached something somewhere.
![image…
I timed one of the smallest sequences I have and got the follwoing results:
5643 frmaes
display in fiel viewer: 9s
load clip: 13s
change colour space: 13s
If I were to linearly…
I've just been working on a sequence and timed things properly:
47222 frames
display in file viewer: 6min 55s
load clip: 3min 40s
change colour space: 11min 5s
I can sort of…
Possibly due to the files on network drive (if you have any)? or could it be due to large number of files in particular folder and sorting them takes a while. Does this happen when file…
Test results:
97% tests passed, 4 tests failed out of 115
Total Test time (real) = 186.94 sec
The following tests FAILED:
97 - io_curve_svg_complex (Failed)
98 -…Output of iinfo after saving a tiff with None compression:
none.tif : 1920 x 1080, 3 channel, uint16 tiff
channel list: R, G, B
compression: "none"
DateTime: "2024:01:10…Thanks I'll give it a shot and let you know how it goes.
I'm happy to try and open a PR if you think my approach seems reasonable
Speculation here but the issue may be that OIIO uses zip compression by default but [this](https://projects.blender.org/blender/blender/src/branch/main/source/blender/imbuf/intern/format_tiff.cc#…
I've just checked and both the LZW and Packed Bits options appear to work as expected
tif_RGB_16_LZW.tif : 1920 x 1080, 3 channel, uint16 tiff
channel list: R, G, B
…