Mashed up image display when using sequencebuild

[alexmnps]

Hi,

When I load your sample .seq file, everything works fine, but when I compile a sequence (using sequencebuild) myself, the image gets displayed in mangled or twisted fashion.

I was wondering whether I'm doing something wrong?

Kind regards.

[alexmnps]

Seems only to occur with image sequences with lower resolutions (smaller than 500x500).

[davegreco]

What is the resolution of the images that you are seeing the problems with?

[alexmnps]

Hi,

I have a particular sequence of images of 414x518. See screenshot for what the distortion looks like. It goes away as soon as I bump it up to a higher resolution.

[alexmnps]

I took a look at the sequence builder code, but didn't catch anything in particular that could cause this.

[davegreco]

Can you try a size that is smaller than 512x512 but is still a square aspect ratio? It may have to do with the way the GL textures are created.

[alexmnps]

Hi. Thank you for taking the time to investigate this issue.
These are the cases I tested out:

Sequence of 400x400: no issues
Sequence of 320x400: no issues
Sequence of 314x400: warping/distortion issue I mentioned earlier

I can send you the samples if that helps.

Kind regards.

[caltv]

I'm seeing the same issue with a sequence of 1000 × 600

[justinmeiners]

Sorry for the long delay, I have been away for almost two years. Could you give me a sample to investigate?

[alexmnps]

Well welcome back! :) I'd have to look around a bit for a sample, I may be able to get to it tomorrow at work. Unless @caltv has a sample handy?

[justinmeiners]

@aceontech I recently changed the compression method from LZ4 to JPEG. It removes the annoyance of having enormous file sizes, and likely addresses this issue.

If you are not working on this anymore, let me know so I can close the issue.

[alexmnps]

Hi @justinmeiners,

I was using your lib on a couple of work projects way back when. I definitely remember still having this issue, but I simply worked around it by selecting a slightly different image dimension.
However, I've changed employer since. I probably still have the projects lying around, but I'd have to dig around.

[justinmeiners]

Don't worry about digging up old projects. That is helpful information for me. Ill experiment with some different dimensions.