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slowtiger wrote:For an A1 poster you should have something like 4900 x 3500 px at least - this is for the old workflow where such a poster was exposed in A3 size with 300 dpi, then enlarged to A1 optically. Remember that you're not supposed to look at an A1 poster from reading distance. Today they print even large A1 posters in full 300 dpi, that would be 9500 x 7000 px. Ask your printer for details.

You could modify your TVP project (cut down to one frame) to the larger size, then redraw just the line art - if the line is still on a separate layer.

Maybe you could post the frame here?

slowtiger wrote:Always check "correct aspect ratio" when modifying or importing. Don't just copy 1 frame from one project to another project as this will always get "fit to project". Instead modify project, or export and import.

slowtiger wrote:Huge project dimensions might be a reason for a crash of TVP on weaker computers. Some tricks:
- switch off every layer you don't need to see while drawing.
- quit all other applications.

slowtiger wrote:Huge project dimensions might be a reason for a crash of TVP on weaker computers. Some tricks:
- switch off every layer you don't need to see while drawing.
- quit all other applications.

Looking at the Image size in photoshop all the dimensions are right but it says 72 for resolution.

Why can't I choose the DPI resolution with TVPaint Animation ?

DPI only matters when you're printing things out. DPIs are used to indicate how dense the image resolution will be when you will print your illustration. The resolution is measured in Dots Per Inch, and the higher the DPI rating, the finer the detail the printer will attempt to print.
In animation, DPI resolution is usually irrelevant since you don't print animations. Worrying about DPI in an animation is like worrying about FPS (Frame per second) in an illustration.
Nevertheless, you can convert illustrations made in TVPaint Animation with most desktop publishing programs. You can also simply increase your project's resolution to match the required DPI.

For example:
A 8x10" project printed @ 72 DPI = 576x792 pixels
A 8x10" project printed @ 300 DPI = 2400x3300 pixels.

slowtiger wrote:(I really should keep a copy of this part somewhere, I've explained this so often in my life!)

DPI means dots per inch and defines how many pixels are spread about a certain distance (1 inch) on real paper. As long as you exchange files between programs, this doesn't matter, so most film software just assumes 72 DPI.

In Photoshop you can easily set the DPI value: Image > Image size, uncheck "resample image", type in the desired resolution or the desired dimensions in cm. The actual value doesn't matter as long as it's better (=larger) than 250 DPI.

slowtiger wrote:Aside from having to deal with a 4 times bigger file, changing to 600 dpi will not improve anything as the dot raster of the print will most likely be 150 or 185 LPI only. (LPI is the same as DPI, just with lines instead of dots.) Don't forget it's a poster: it's to be watched from at least 1,5 m distance, not with a magnifying glass in 5 cm distance!