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So I'm processing some large +300 image pano for some testing and I'm trying to lower the render times. I'm aware that computer hardware is the key for this but going beyond that I'm looking to optimise the render in APG
So I have some ideas that i think might help, but just wondering if they're right;
1. Colour LDR Off
I'm using 8bit jpgs as my input, so no need for HDR, would the colour option slow down a +300 image render?
2. JPG Quality
JPG12 and JPG7 are sinicantly different in closed size, and while compression does have quality issues, would it speed the render
much, even though pixel size is the same?
3. Temp Folder vs. Destination Folder
So after +12 hour render I see that the final file was written in 1 hour, so the temp folders are being written to/from for a lot longer than the destination folder. I should set the quickest drive for the temp folder then, no?
4. Interpolator
Always been fond of the bicubic smoother, espcially cos it's quite often sky/ceiling or carpet/grass that's being interpolated. Would any of the other interpolator methods be quicker?
So doing some small testing in the office today and my results are a bit haphazard, trying to take an average read from the times but still not 100% on the above ideas.
Can anyone share some experience/ideas on them?
thanks in advance
Con
*edit - just added #4
Last edited by con (2012-01-18 12:50:46)
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cpu and storage speed
never compromise on quality
Henrik
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certainly can appreciate that - but that's hardware and fully understood
But in the instances of speedier test shots or required speedier turnarounds I'm examining what's possible solely within the software. Anyone>?
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There is not much place for really acceleration within the software. Here's the ideas :
- Temporary folder and destination folder on 2 differents harddrive so that reading and writing can happen concurrently
- Optimize memory usage while working ( when doing detection, edition, everything except rendering, use a low memory value reserved ). When doing rendering, a high value.
- Output format won't change much except the time needed to write MB so jpeg should be faster than PSB
- You can run with quick preset in optimization, but with quality issue at the end in the stitching
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Alex and Mods,
Can we please have a Sticky regarding Hardware and its best fit configuration in broad terms
As a general rule of thumb....
That,
- faster CPU with most cores - gives best result, Multiple CPU's offer even better performance at the same speed or faster
- the most and fastest RAM will give the best result
- SSD's are preferred to HDD's due to the faster speed in SSD
- Stripping (RAID-0) these will give you an even faster configuration
- A multi - disk system can perform faster then a single disk system by spreading the load to different disks, such as having source files on disk D and temp files on disk E, and even better if you can offload them on disk F and that all of these disks are separate to your boot disk with your OS/APPs on
This can be written a lot more elegantly but I am sure you get the idea + adding on what you got above - I can't remember if Bo already did begin to write something or Dr Slony
thanks
Henrik
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