The lossless BMRAW is really beneficent to HW. 
As for my SIGNATURE machine, a 4k60p SDR project with Good/Half preview can be performed in full speed playback. 
RAWs from 2k till 12k! 

Today, high-end materials are often captured in format others than Rec709 space. Sure, they can be used for traditional production, but more in trends making HDR videos. 
Here we confront with 2 problems: 
1, 
you may have your own camera but shoot in different formats, or your footage comes from mixed source; you must check one by one and find the proper LUT-filter first, then go on correcting/grading your timeline. 
2, 
for HDR editing, besides the necessary display device which also determines what HDR you can do, you must take an IDT in yet more laborious struggle, especially for those plenty Log-formats; if source unknown, it's not job please the next but endless trials till you found the right one. 

This, is not the case with BM-Decode Panel! 
Though it has currently only the left side working in VEGAS. 
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Here we trace the shortest way for BMRAW post editing, both SDR and HDR, and/or interchange between the two. 
Our sample project is 4k60p as stated; above 4k it's a future theater and beneath 60fps it hurts my eyeball. 

We begin with SDR. 
Imported into mediapool, we sort, select all RAWs and go RAW-panel resetting them by Default. 
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Timeline arrangement finished, we now open the panel for each clip, adjust its space, gamma, temperature and possibly exposure. 
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We can save the Rec709.SfDecProp data in a ZIP-file for later recovery, because the .SfDecProp will be changed if your definition goes another format. 
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I add  one each sample of the following formats for more reference: 
Log, 
VEGAS doesn't know what it is, you'd go camera-LUT and choose the proper filter, if none proper there you'd find one some where; 
you'd set the LUT-range to full - and it needs IDT for HDR after you reset the camera-LUT. 
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HDR10, 
VEGAS identifies its format for HDR, for SDR you'd give it an LUT and set its range to full, too. 
In HDR the LUT must leave away. 
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HLG, 
VEGAS identifies its format for both HDR and SDR, i.e. you need changing nothing but you'd adjust skilled its exposure etc. for further grading. 
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Rec709, 
the native format for SDR-editing - it needs IDT but can be batch performed in the mediapool if used for HDR. 
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Now we enter the HDR10 and try a complete new performance. 
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VEGAS uses the AP0 definition by default in its ACES project, we can thus choose this space for BMRAW in its decode panel, adjust can be including ISO-value. 
(Web-site doesn't show HDR-screen correct, so all the adjustments are performed via my 2nd display; the In-window HDR preview not activated.) 
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As usual, we save the AP0.SfDecProp data in a ZIP-file for later recovery. 
This method keeps the VEGAS-IDT away hence is flexible and easy to change into other formats e.g. if you have a P3-DCI monitor or something like that. 

If you find this method too risky, then go selecting all RAWs and do the IDT to Rec.2020 ST2084 (1000 mits). 
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And the ST2084-PQ procedure begins one after the other...Don't forget saving that PQ.SfDecProp data in a ZIP-file. 
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