Bad Image Render When Moving View

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Pandorino
Posts: 1
Joined: Fri Apr 22, 2016 9:55 pm

Bad Image Render When Moving View

Postby Pandorino » Fri Apr 22, 2016 10:05 pm

I always had this issue but never found an explanation for it. When I move the visual the objects are poorly rendered. (see images attached)

Inkscape bad render.png
Inkscape bad render.png (133.2 KiB) Viewed 2598 times

Here the problem

Inkscape object.png
Inkscape object.png (128.18 KiB) Viewed 2598 times

Here the simple object as it is

Like a 1080p video suddenly becaming a 128 quality video, giant pixels that fill the screen until I stop move the view.

In the past I thought it was the poor quality of the video card but now I have an Nvidia 970GTX (on a notebook) so there should be no problem at all..

Anyone have the same problem?

Thanks guys

hulf2012
Posts: 716
Joined: Sat Nov 24, 2012 12:37 pm

Re: Bad Image Render When Moving View

Postby hulf2012 » Sat Apr 23, 2016 1:23 am

Hello Pandorino,

I have to say that Yes, you are right. Even in machines with good resources (Core i5, 8gb ram, Nvidia Card GeForce 210), in some cases, there are rendering issues on Inkscape.

With special cases I mean: Very large graphics from around 10 000 x 5 000 pixels, more or less. Or when using a lot of filters (bluring) or many shapes (I can't guess a number here, sorry).

But from what I see in your screen shot, your case is not one of them... Unless there is some info still not shown,

- What are the specifications of your machine: processor, ram, graphic card, etc. Operative System?
- Are you sure do you have installed the graphic card controller, or any other contoller, correctly?
- Do you have a specific hardware configuration?... I mean two or more monitors, maybe another hardware (like an old Wacom or similar? just saying)
- Do you have changed something in the Inkscape preferences.

Anyway, there are high probabilities it's a Inkscape bug, in my opinion. You better search in Inkscape's bug system
https://bugs.launchpad.net/inkscape

For the moment, I can't give you more info.

Good luck
If you have problems:
1.- Post a sample (or samples) of your file please.
2.- Please check here:
http://tavmjong.free.fr/INKSCAPE/MANUAL/html/index.html
3.- If you manage to solve your problem, please post here your solution.

Lazur
Posts: 4717
Joined: Tue Jun 14, 2016 10:38 am

Re: Bad Image Render When Moving View

Postby Lazur » Sat Apr 23, 2016 4:51 am

This topic was the first to came into my mind yet the case is totally different.

It could be a system specific behave -does it appear the same in other programs?
Do you have a mac? If so, an usual solution is changing the theme from one to another, Suv may tell.

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brynn
Posts: 10309
Joined: Wed Sep 26, 2007 4:34 pm
Location: western USA
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Re: Bad Image Render When Moving View

Postby brynn » Sat Apr 23, 2016 10:24 am

In my experience this happens more often and more extreme in large files. Sometimes File menu > Clean Up Document may help. Sometimes I find scrolling away and scrolling back helps, and likewise, sometimes minimizing the window and then maximizing gets rid of it. And if it gets really bad, I close the file and re-open it. For me, it happens more with text. It can happen for me with text, even when the file is very small.

The really weird thing is that sometimes I can use one text object and move it over the trail, and it acts like an eraser for the trail of...whatever it's called.

Too bad, it looks like the bug status went from Medium back to Triaged. I'm assuming that's sort of a downgrade. But I don't really know for sure. In my opinion, it should be Medium. But I'm certainly no developer!

Lazur
Posts: 4717
Joined: Tue Jun 14, 2016 10:38 am

Re: Bad Image Render When Moving View

Postby Lazur » Sat Apr 23, 2016 10:46 am

^- The importance is medium, not the status.


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