Inkscape

use of inkscape to produce graphics for use in HD video

Asked by brian dent

I have produced a logo using Inkscape.

This logo is for use on the Web and for the opening titles and final credits in HD (1920x1080) video productions.
I use Sony Vegas Pro to produce the videos and this prefers graphics to be .png files. I have therefore exported the .svg graphics as bitmaps.

When imported into the Vegas project the graphic images look good in the video preview. When rendered they look awful. What were continuous smooth lines become broken jagged lines and text has no anti-aliasing. I have tried a number of different page sizes during production of the .svg and a number of different pixel sizes when exporting the bitmap. all to no avail.

The quality of the rendered image is bad regardless of whether I render to NTSC or PAl or for Bluray .

Am I asking Inkscape to do something that it cannot do? If not what should I do regarding page sizes when producing the .svg and similarly what criteria should I use for exporting the bitmap?

Is there an issue between square and rectangular pixels/ What does Inkscape use? Can the pixel shape be changed?

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Alexandre Prokoudine (alexandre-prokoudine) said : 		#1

Excuse me, but what does it have to do with Inkscape? :)

If your PNG images look OK in any image viewer, and the preview looks OK too, obviously Vegas's rendering pipeline is broken.

I've used PNG files produced by Inkscape in quite a few videos rendered with Kdenlive, and I've never seen anything like you what you describe. Please contact Vegas's technical support team to check that.

Revision history for this message
brian dent (bernidant) said : 		#2

When everything else video, animated titles, still images etc are all
rendering perfectly well logic suggests that any fault investigation should
centre upon the variable i.e. a .png file produced using Inkscape.

The problem/solution may well have nothing to do with Inkscape it is most
likely pilot error - notice the willingness to accept responsibility rather
than place the blame elsewhere.

A more useful answer would have been to identify the procedure you use to
produce the .png images that give you good rendered results.

Looking forward to your helpful response.

Brian Dent

-----Original Message-----
From: <email address hidden> [mailto:<email address hidden>] On Behalf Of
Alexandre Prokoudine
Sent: 20 August 2012 02:26
To: <email address hidden>
Subject: Re: [Question #206234]: use of inkscape to produce graphics for
usein HD video

Your question #206234 on Inkscape changed:
https://answers.launchpad.net/inkscape/+question/206234

    Status: Open => Answered

Alexandre Prokoudine proposed the following answer:
Excuse me, but what does it have to do with Inkscape? :)

If your PNG images look OK in any image viewer, and the preview looks OK
too, obviously Vegas's rendering pipeline is broken.

I've used PNG files produced by Inkscape in quite a few videos rendered
with Kdenlive, and I've never seen anything like you what you describe.
Please contact Vegas's technical support team to check that.

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Revision history for this message
Alexandre Prokoudine (alexandre-prokoudine) said : 		#3

Brian, I don't understand your request. There is no special procedure. I just export PNG files and use them. It just works.

I also don't understand your appeal to logic. But hey, that's just me.

Can you help with this problem?

Provide an answer of your own, or ask brian dent for more information if necessary.

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