Not only show here the MediaInfo of your sourcefile but also please a screenshot of your projectproperties and your settings in Options/Preferences/Video.
What are the driverversions of your Nvidia videocard and of the Intel GPU?
Your setup is almost the same like mine, see signature and I have no problem full previewing transitions on AVC 4K videofiles.

Virtually same set-up here too and no problem. My only suggestion for overall performance is to get an SSD if you don't have one already. You can use a program like Macrium to copy regular hard drive over to the SSD so long as it is the same size or larger.

Your situation is you are using h265, that is going to decode poorly on any system when editing. Shoot h264 or convert your files to another format like magix intermediate 4:2:2 or Sony XAVC-I before editing. Happy Otter Scripts' import assist can help you here, it uses Magic YUV, another good codec to use. tools4vegas.com

as above. VP doesn't like interframe codecs such as XAVC-S. recode with otter ;-)

Your situation is you are using h265, that is going to decode poorly on any system when editing.

@fr0sty

Maybe with you but not with me, besides that proxies can be used.
See my screengrab video playing the HEVC files like the OP did in Full preview 50 fps on laptop from signature and seeing ala frames and nearly all frames during the transition.

Can you upload a sample of the media?  Also can you download Mediainfo ( https://mediaarea.net/en/MediaInfo )and post the details of the media you are using..  It will help a lot to understand the makeup of the media and help look into the issue..

Thank you Harry! So glad you answered me!

>> HERE you can find the 2 files https://www.sendspace.com/file/7l258k

>> BELOW the mediainfo description

I look forward to knowing your thoughs about it!
Thank you!
Marco

General
Complete name                            : E:\BLOGGER\MARCO COMPRA TUTTO\20190227 Amazon 27-2-19 - Bowens diffuser - Xiletu smartphone holder - GoPro Led - mini tripod\CLIP hires\18 bowens con diffuser - Amazon 27-2-19 - 00259.mp4
Format                                   : MPEG-4
Format profile                           : Base Media / Version 2
Codec ID                                 : mp42 (isom/iso2/avc1/mp41)
File size                                : 126 MiB
Duration                                 : 5 min 31 s
Overall bit rate                         : 3 198 kb/s
Encoded date                             : UTC 2019-03-02 18:08:52
Tagged date                              : UTC 2019-03-02 18:08:52
Writing application                      : HandBrake 20190221200049-cedecb1-master 2019022201

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : Main@L4
Format settings                          : CABAC / 4 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 4 frames
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 5 min 31 s
Bit rate                                 : 3 028 kb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 50.000 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.029
Stream size                              : 120 MiB (95%)
Writing library                          : x264 core 157 r2935 545de2f
Encoding settings                        : cabac=1 / ref=2 / deblock=1:0:0 / analyse=0x1:0x111 / me=hex / subme=6 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=12 / lookahead_threads=2 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=1 / keyint=500 / keyint_min=50 / scenecut=40 / intra_refresh=0 / rc_lookahead=30 / rc=crf / mbtree=1 / crf=20.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / vbv_maxrate=20000 / vbv_bufsize=25000 / crf_max=0.0 / nal_hrd=none / filler=0 / ip_ratio=1.40 / aq=1:1.00
Encoded date                             : UTC 2019-03-02 18:08:52
Tagged date                              : UTC 2019-03-02 18:08:52
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709
Codec configuration box                  : avcC

Audio
ID                                       : 2
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Codec ID                                 : mp4a-40-2
Duration                                 : 5 min 31 s
Bit rate mode                            : Constant
Bit rate                                 : 160 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 46.875 FPS (1024 SPF)
Compression mode                         : Lossy
Stream size                              : 6.34 MiB (5%)
Title                                    : Stereo
Default                                  : Yes
Alternate group                          : 1
Encoded date                             : UTC 2019-03-02 18:08:52
Tagged date                              : UTC 2019-03-02 18:08:52

Not only show here the MediaInfo of your sourcefile but also please a screenshot of your projectproperties and your settings in Options/Preferences/Video.
What are the driverversions of your Nvidia videocard and of the Intel GPU?
Your setup is almost the same like mine, see signature and I have no problem full previewing transitions on AVC 4K videofiles.

Hi J-V, I'm so glad you have a similar setup! Maybe, based on your experience, you can immediately understand why I have no luck with Vegas!

Let me answer your questions:

1 > Project Properties: http://bit.ly/2W4Ifpe

2 > Options/Preferences/Video: http://bit.ly/2W4wbEe

3 > Options/Preferences/General: http://bit.ly/2W05AIu (bonus, thought it might help)

4 > Options/Preferences/Preview: http://bit.ly/2W3Kc5e (bonus, thought it might help)

A > driver versions of your Nvidia videocard (updated using Driver Booster) 26.21.14.3064

B > driver versions of your Intel GPU >> that's the tricky part: I don't have one. >> http://bit.ly/2W1ocYQ

I'm really eager to know what you think about this impossible case!!!

Thank you!

Marco

Virtually same set-up here too and no problem. My only suggestion for overall performance is to get an SSD if you don't have one already. You can use a program like Macrium to copy regular hard drive over to the SSD so long as it is the same size or larger.

Thank you Karma!

After a few failed attempts, I've tried one shot like moving all the footage over the primary SSD drive, but nothing changed!

Other ideas?

Thank you!

Marco

@Marco-Stucchi

No problem to play those files full preview and also the transition look to my video. It must be something wrong in your set up, settings or hardware .

BTW. Are this the original files?

I can see they come from Handbrake and they are H264 en not as their title says

1 > Project Properties: http://bit.ly/2W4Ifpe

Set the Dyn Ram preview back to the default 200, but 0 is also possible because normal preview has nothing to do with that.

B > driver versions of your Intel GPU >> that's the tricky part: I don't have one. >> http://bit.ly/2W1ocYQ

You have with your processor also an Intel GPU, the Intel 530, see here:

https://ark.intel.com/content/www/us/en/ark/products/88967/intel-core-i7-6700hq-processor-6m-cache-up-to-3-50-ghz.html

I think when you don't see it you are able to allowe it in the BIOS settings of your computer, but I think that with the other dedicated Nvidia it is not needed. But in this Vegas software it gives you the fastest renderoptions with the Magix codecs.

Your situation is you are using h265, that is going to decode poorly on any system when editing. Shoot h264 or convert your files to another format like magix intermediate 4:2:2 or Sony XAVC-I before editing. Happy Otter Scripts' import assist can help you here, it uses Magic YUV, another good codec to use. tools4vegas.com

Hi, fr0sty, so glad you came and enlighted this situation!
Got me, transcoding footage does the job, but newer sony cameras ONLY record H265 in hi-res!
I really have to become proficient with the whole production process, so I tought H265 was the way to go because its smaller footprint and its compatibility with newer devices (e.g. Luma Fusion and iPads).

You knowing the trick:

1st idea: a new laptop with HEVC processor based hw decoding?
--> i7 6700k, 6600k or AMD Ryzen 5
Those processors should manage the H265 preview in timeline, am I right?

2nd idea: the newest Mac have T2 coprocessor, which is specialized in H265 http://bit.ly/2W07mJE
My innocent tought: any Mac with T2 would have no problem whatsoever in preview with H265 footage

Thank you! Thank you again for your ideas! :o)

Marco

as above. VP doesn't like interframe codecs such as XAVC-S. recode with otter ;-)

Hi, AVsupport, thank you!

You bring me in mind 2 weird things:

1st WEIRD: the Magix support, given the sample files, told me they had no problem with the preview. Is it possibile? They told me they had no problem with a vastly inferior machine...

2nd WEIRD: this is a screenshot taken just after playing with my video in Vegas. See that the GPU is never used for video encode/decode? How is that possible?

I really appreciate your expert opinion and help, have a good night!

cheers

Marco

I'd avoid the mac all together.. far too overpriced for what you get. Final cut is good at what it does, but it doesn't do a lot. Last time I tried, FCP couldn't even import HEVC. Most modern GPUs you can get for PCs have hardware HEVC decoding. I'm not sure if Vegas currently uses that, but that may change in the future, so keep an eye on that. I do know that Vegas can play some HEVC content ok, as pointed out above, but you aren't going to want to try a complex multicam project using it. using proxies or intermediates is the way to go there.

@Marco-Stucchi

When I read this all, the only thing for me to conclude is that you gave totally wrong information that I commented above, so now I withdraw myself from this subject and wish you happy editing.

 

You knowing the trick:

1st idea: a new laptop with HEVC processor based hw decoding?
--> i7 6700k, 6600k or AMD Ryzen 5
Those processors should manage the H265 preview in timeline, am I right?

 

Your existing cpu the 6700HQ has hardware decoding for Vegas via Quicksync. Apparently with some laptops where there is a discreet video card installed it's not possible to have your intel gpu and nvidia cpu activate at the same time so you don't get the hardware decoding. My laptop allows IntelGPU out via vga port & Nvidia out via HDMI at same time & this setup allows hardware decoding via Quicksync

When editing 4k60p footage QSV decoding helps a lot with timeline performance. I can't test HEVC video now because QSV is broken again, but using Davinci Resolve that does use hardware decoding with intel6700 I get full fps when editing HEVC

@Marco-Stucchi

See my profile for laptop specs, used here to test, very similar to your laptop.

I tested your 2 clips with a 1s overlap, played at full 50fps except a small time to get up to speed when the play position is changed.

Your Project properties of 1,080 x 1,080 is a little weird.  It was a little slower using that setting but mostly played at full fps.  Maybe set Project properties to 1920x1080.

I set Project Properties=1920x1080, I set playback to best full, I set for playback, i.e. right click preview window,  "adjust size and quality for optimal playback" = checked. Playback then settled mostly, 99% of the time to preview half at 50fps.

As @j-v points out, the files supplied for download are not h265.

"Situation:
X> one single video track, two clips
X> one clip a few seconds long, the other about 5 minutes long
X> both clips 1080p H265 from Sony Mirrorless
X> one cross fade transition"

Update:  If I uncheck  "adjust size and quality for optimal playback" and set to best/full it plays at best/full.

So perhaps not a good idea to always set  "adjust size and quality for optimal playback" = checked.

@Marco-Stucchi

Note that with reference to @Former user comments. The intel QSV capability is permanently disabled on my laptop, so its not using QSV but still plays the clips aok as mentioned above.

@Marco-Stucchi

You have with your processor also an Intel GPU, the Intel 530, see here:

https://ark.intel.com/content/www/us/en/ark/products/88967/intel-core-i7-6700hq-processor-6m-cache-up-to-3-50-ghz.html

I think when you don't see it you are able to allowe it in the BIOS settings of your computer, but I think that with the other dedicated Nvidia it is not needed. But in this Vegas software it gives you the fastest renderoptions with the Magix codecs.

Hi J-V, thank you again, you pinpointed me to (I think) the right conclusion: somehow ASUS disabled the integrated graphics. This laptop is dedicated to gamers, maybe for them this is an advantage?

I check with the Intel® Driver & Support Assistant, as you can see, no HD Graphics 530 detected!

>>>> http://bit.ly/2HUC7pI

Weird BIOS, "aptio setup utility" with no options dedicated to the graphics card.

fr0sty wrote about the MAC "far too overpriced for what you get." But here, now, I think I understood why the Magix support dropped me: it's not strictly related to their software. That's what makes me think a single vendor for hw and sw should present less issues. Les features, more price, less issues. Doesn't it translate to better productivity? I've spent 1 month, now, dealing with this problem...

Thanks, thanks and thanks again. You supported me and dedicated some time and your knowledge.
You people, not the Magix support, kept me in the Vegas world for a bit more.

Marco

PS I think I could give Vegas a last call, I'm buying another laptop on eBay... last call!

Your laptop is not too dissimilar to mine. (sys3 in profile).  Edit GoPro  (2K7) single track 40min timeline with ease. Your 1080x1080p is strange.   Maybe shoot & test 1920x1080 and see if problem clears.

If you R click the Vegas Icon you can select intel or nvidia graphics.  Select nvidia and make sure video properties recognises your graphics option.  If you only have intel option then match accordingly.

Also worth a try from VP icon R click-> properties-> set run as administrator. Easy to change back if no improvement found.     Keep a note of what is changed so you can fall back easily.

Buying new pc seems a little drastic and no guarantee it will solve problem.  Best of luck.

Your laptop is not too dissimilar to mine. (sys3 in profile).  Edit GoPro  (2K7) single track 40min timeline with ease. Your 1080x1080p is strange.   Maybe shoot & test 1920x1080 and see if problem clears.

If you R click the Vegas Icon you can select intel or nvidia graphics.  Select nvidia and make sure video properties recognises your graphics option.  If you only have intel option then match accordingly.

Also worth a try from VP icon R click-> properties-> set run as administrator. Easy to change back if no improvement found.     Keep a note of what is changed so you can fall back easily.

Buying new pc seems a little drastic and no guarantee it will solve problem.  Best of luck.

Hi diverG, I cannot write how thankful I am for your time dedicated to help out with Vegas.

If I right click the Vegas icon I can only "Run as administrator" or choose "Properties", where I can only "Disable fullscreen optimizations, or "Run this program as an administrator". There are also options like "Compatibility mode" or "Program Compatibility Troubleshooter", but I think those are more forward programs that used to work well in older versions of Windows.

So, no option for selecting intel or nvidia graphics, tried "Run this program as an administrator" with no improvements.

You been able to edit GoPro  (2K7) is exactly what we are trying to have here: Vegas editing H265 footage without problems. But I have no luck.

BTW, I downgraded my footage to H264 (about 30 minutes and 6 more Gigabytes of wasted time/space), only to get Vegas crash after 20 minutes of work... loosing the last 10.

I have a NEW, compelling QUESTION here: "How often do your Vegas crash"? (for every hour of work)

Because if the mean is that Vegas crashes once every hour of work... I'm switching to an Apple machine today!

...wish you were stable...

Vegas does not crash but then my editing sessions do not exceed 4 hrs.   Note you are editing h265. Just checked my clips with mediainfo & I see no reference to h265 or h264.  Source Gopro5 hero black.   Can you edit h264 material?  Maybe h265 is the problem.   I don't use h265 so cannot coment

You will only have 1 graphics option as your chip is 6700hd  whilst I always use 6700K processors.

Have found on my main machines latest nvidia drivers work OK with VP16 but cause VP14 to crash. Earlier drivers work with both 14 & 16.  Life is a compromise!     Machines are not off the shelf but purpose built by a local 'seller' of Grassvalley (Eduis) software.