Although I have Perform SmartRender checked, a video of about 20 minutes is taking some 4h to re-render (MPEG 16:9 DVDPAL), after making only very few adjutsments. Is there something I am missing? I must be doing something systematically wrong since only once re-rendering seemed to work very well (i.e. few minutes to re-render a ca. 30 m clip).
I usually use lots of image files, which I size to 1024x576 px. Some help would be very much appreciated. Thanks in advance.
smartrender-why not working?
For smart render to work, the project settings must be identical to the files that you are rendering. As 1024 x 576 is not a DVD standard format, it is clear that re-rendering will be required.
[b][i][color=red]Devil[/color][/i][/b]
[size=84]P4 Core 2 Duo 2.6 GHz/Elite NVidia NF650iSLIT-A/2 Gb dual channel FSB 1333 MHz/Gainward NVidia 7300/2 x 80 Gb, 1 x 300 Gb, 1 x 200 Gb/DVCAM DRV-1000P drive/ Pan NV-DX1&-DX100/MSP8/WS2/PI11/C3D etc.[/size]
[size=84]P4 Core 2 Duo 2.6 GHz/Elite NVidia NF650iSLIT-A/2 Gb dual channel FSB 1333 MHz/Gainward NVidia 7300/2 x 80 Gb, 1 x 300 Gb, 1 x 200 Gb/DVCAM DRV-1000P drive/ Pan NV-DX1&-DX100/MSP8/WS2/PI11/C3D etc.[/size]
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fandj
It's got nothing to do with MSP, it has everything to do with DVD:
Allowable picture resolutions are:
MPEG-2, 525/60 (NTSC): 720x480, 704x480, 352x480, 352x240
MPEG-2, 625/50 (PAL): 720x576, 704x576, 352x576, 352x288
MPEG-1, 525/60 (NTSC): 352x240
MPEG-1, 625/50 (PAL): 352x288
Every time you create a DVD-compliant MPEG file, it MUST (mandatorily, obligatorily) be in one of the above formats, whether you use MSP, Premier, Avid, Sony or any other software. Therefore, if your input files are in a different format, re-rendering is mandatory. The only difference between 4:3 and 16:9 in DVD-compliant MPEG is that each GOP has a sequence header which gives, in order,
An identifier code, the horizontal size extension code (2 bits), the vertical size extension code (2 bits), the aspect ratio code (4 bits), the frame rate code (4 bits)...
The aspect ratio code is 0010 for 4:3 and 0011 for 16:9. This is set by the encoding software, such as that in MSP. If it is set to 0001, then the display is set to the AR of horizontal/vertical. That is the only difference.
In any case, if your input files are stills, they are not in MPEG-2, possibly e.g. JPEG or BMP, and they have to be re-encoded or re-rendered into MPEG-2. The larger these files are, the longer this will take. Smart render has nothing to do with this.
Allowable picture resolutions are:
MPEG-2, 525/60 (NTSC): 720x480, 704x480, 352x480, 352x240
MPEG-2, 625/50 (PAL): 720x576, 704x576, 352x576, 352x288
MPEG-1, 525/60 (NTSC): 352x240
MPEG-1, 625/50 (PAL): 352x288
Every time you create a DVD-compliant MPEG file, it MUST (mandatorily, obligatorily) be in one of the above formats, whether you use MSP, Premier, Avid, Sony or any other software. Therefore, if your input files are in a different format, re-rendering is mandatory. The only difference between 4:3 and 16:9 in DVD-compliant MPEG is that each GOP has a sequence header which gives, in order,
An identifier code, the horizontal size extension code (2 bits), the vertical size extension code (2 bits), the aspect ratio code (4 bits), the frame rate code (4 bits)...
The aspect ratio code is 0010 for 4:3 and 0011 for 16:9. This is set by the encoding software, such as that in MSP. If it is set to 0001, then the display is set to the AR of horizontal/vertical. That is the only difference.
In any case, if your input files are stills, they are not in MPEG-2, possibly e.g. JPEG or BMP, and they have to be re-encoded or re-rendered into MPEG-2. The larger these files are, the longer this will take. Smart render has nothing to do with this.
[b][i][color=red]Devil[/color][/i][/b]
[size=84]P4 Core 2 Duo 2.6 GHz/Elite NVidia NF650iSLIT-A/2 Gb dual channel FSB 1333 MHz/Gainward NVidia 7300/2 x 80 Gb, 1 x 300 Gb, 1 x 200 Gb/DVCAM DRV-1000P drive/ Pan NV-DX1&-DX100/MSP8/WS2/PI11/C3D etc.[/size]
[size=84]P4 Core 2 Duo 2.6 GHz/Elite NVidia NF650iSLIT-A/2 Gb dual channel FSB 1333 MHz/Gainward NVidia 7300/2 x 80 Gb, 1 x 300 Gb, 1 x 200 Gb/DVCAM DRV-1000P drive/ Pan NV-DX1&-DX100/MSP8/WS2/PI11/C3D etc.[/size]
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fandj
Thank you. It became now much clearer. Is it still correct that I use 1024x576 px in my stills (to avoid distortion with stretching). I think I have seen this advised in this excellent forum. I normally work with tiffs in Photoshop (saved with LZW compression) to ensure maximum quality. These stills are then transferred to MSP 8.
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heinz-oz
You cannot relate video pixels with still image pixels. Image pixels are square, video pixels are not. To make matters more confusing 720 x 576 (PAL) or 720 x 480 (NTSC) can be 4:3 or 16:9.
I have no experience with 16:9 as yet but my images for 4:3 (PAL) are usually resized to 1200 x 900 or 800 x 600 and saved as bitmaps. They come out cristall clear in MSP.
When you use your images (1024 x 576 = 16:9) are you getting a distortion?
I have no experience with 16:9 as yet but my images for 4:3 (PAL) are usually resized to 1200 x 900 or 800 x 600 and saved as bitmaps. They come out cristall clear in MSP.
When you use your images (1024 x 576 = 16:9) are you getting a distortion?
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heinz-oz
Re: smartrender-why not working?
Smart render is only smart enough to realize if a video clip has been altered. If it has, the altered sections only are re-rendered the rest is taken as is. Since your images are not video clips they need rendering .fandj wrote:Although I have Perform SmartRender checked, a video of about 20 minutes is taking some 4h to re-render (MPEG 16:9 DVDPAL), after making only very few adjutsments. Is there something I am missing? I must be doing something systematically wrong since only once re-rendering seemed to work very well (i.e. few minutes to re-render a ca. 30 m clip).
I usually use lots of image files, which I size to 1024x576 px. Some help would be very much appreciated. Thanks in advance.
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fandj
Thanks again.
No, I do not have distortions caused by stretching, when I use 1024x576.
In fact, based on experience this is the best dimension I can use with stills. I do not need either to pan and zoom pictures with other than the above size, nor need to stretch them. Distortion comes (e. g. people become "fat") with the latter option. The 1024x576 is also very useful when I use PIPS, whose size and moving paths I have customised and saved. I am sure that once or twice I have generated a 16:9 clip and re-rendered it very fast. But I do not know in what circumstances I have achieved it. I have to think about it in particular knowing now what Heinz says about rendering stills. Any idea is mostly welcome. Additional information: I use virtual clips/chapters which are inserted into the Main Timeline as I progress. Regards.
No, I do not have distortions caused by stretching, when I use 1024x576.
In fact, based on experience this is the best dimension I can use with stills. I do not need either to pan and zoom pictures with other than the above size, nor need to stretch them. Distortion comes (e. g. people become "fat") with the latter option. The 1024x576 is also very useful when I use PIPS, whose size and moving paths I have customised and saved. I am sure that once or twice I have generated a 16:9 clip and re-rendered it very fast. But I do not know in what circumstances I have achieved it. I have to think about it in particular knowing now what Heinz says about rendering stills. Any idea is mostly welcome. Additional information: I use virtual clips/chapters which are inserted into the Main Timeline as I progress. Regards.