Krita 2.8.79.13

[itsjustme]

I checked out the latest alpha version of Krita 2.9: https://krita.org/item/after-the-kickstarter/ and was very happy that the Windows version now supports EXR images. I'm not sure about the current stable version 2.8.3: https://krita.org/download/krita-desktop/ It may be supported in that one as well, I haven't checked.

 

It looks like A:M can use the 16bit flattened EXR's that Krita can save.

 

I'm looking forward to the stable 2.9 release.

[Rodney]

Looks really nice.

I just played with it a little and didn't see the EXR option (for import or export).

I assume that I probably don't have the image in the right format for such or... perhaps I need to install something else.

I'll try again later.

 

Thanks for the heads up.

[itsjustme]

Looks really nice.

I just played with it a little and didn't see the EXR option (for import or export).

I assume that I probably don't have the image in the right format for such or... perhaps I need to install something else.

I'll try again later.

 

Thanks for the heads up.

 

When you make a new image, set the color to RGB and change the depth to 16bit. Then, when you save or export the image, you should be able to save or export as an EXR.

 

Hope that helps, Rodney.

[Rodney]

Yeah... 16bit RGB... that's what isn't working for me.

The option for the EXR format doesn't appear.

 

That's not a big deal though.

[itsjustme]

Yeah... 16bit RGB... that's what isn't working for me.

The option for the EXR format doesn't appear.

 

That's not a big deal though.

 

That's strange...it is an alpha, so maybe it doesn't work for everyone yet.

 

I just make a new custom document, set it to 16bits RGB, then I can export it as an EXR (one of the options in the pulldown menu...then I select "flatten"). This is in 2.8.79.13 located at: https://krita.org/item/after-the-kickstarter/

[Rodney]

My apologies David.

 

I re-installed and now I see the EXR option there.

I must have installed an earlier version than the latest alpha!

 

Krita was looking good before but is looking even better now.

 

16bits RGB

 

 

I think that needs to be 16 bit float for the EXR to work although I might be wrong in that (again! ).

If the color space isn't float then the option to save to EXR doesn't show up.

[robcat2075]

I just saw some news about this today. I guess it's up to 3.0 now.

 

Does this support alpha channels? Meaning that... you can manually paint in the alpha channel?

[itsjustme]

I just saw some news about this today. I guess it's up to 3.0 now.

 

Does this support alpha channels? Meaning that... you can manually paint in the alpha channel?

 

I think so (I know that it supports alpha channels)...maybe this will help? https://userbase.kde.org/Krita/Tutorial_2

[robcat2075]

It looks like it doesn't. They seem to be equating layer transparency with "alpha" but I can't see that they ever expose the alpha channel as a channel you can paint on.

 

A search on "alpha channel" shows nothing.

[Fuchur]

You would need to use a transparency map to simulate that with an image for itself.

I am using krita with my cintiq because it is very nice for painting and drawing. It is not that good for image manipulation... (compared to photoshop) but still better than most other software beside photoshop especially in the low price market.

[Rodney]

It looks like it doesn't. They seem to be equating layer transparency with "alpha" but I can't see that they ever expose the alpha channel as a channel you can paint on.

A search on "alpha channel" shows nothing.

 

I'm not that famliar with Krita but at least in the latest release the alpha can be painted on via mask (I believe this is what Fuchur refers to in his response).

Each Layer has it's own Alpha that can be augmented with such a mask.

On any Layer simply Right Click and select the option to 'Split Alpha/Alpha into Mask'.

Then choose the paint brush and paint your mask.

 

As each Layer in Krita can have mulitiple masks I must assume they can also have multiple Alpha masks.

Yup. Just confirmed. That could be useful.

 

Again, I'm not that familiar with the workflow but this is of interest to me because many applications treat the Alpha channel as all or nothing whereas we want to be able to use the alpha/transparency with grayscale. In Krita (at first look) it appears that the alpha masks are all or nothing (black or white) but they can be grayscale. One way to accomplish this is that once the Alpha has been split to a mask via Right Click, Right Click again and select 'Convert/To Paint Layer'. Then paint with various transparencies/opaqueness. Then Split the Alpha back to a Mask.

 

I note that choosing 'Convert/Transparency Mask' appears to do the same thing as using the 'Split Alpha/Alpha to Mask' on a Layer that you want to use for transparency. To seal the deal and make the transparency become the actual Alpha Channel it appears a final selection of Right Clicking and selecting 'Split Alpha/Write As Alpha' is required.

 

So I believe the answer to the question may be of the form 'convert back and forth from Alpha to Transparency Map'.

 

I can confirm that the resulting image works as expected in A:M (via PNG image format). See attached.

[robcat2075]

Thanks for that investigation, Rodney!

[kenmo]

2 years ago I made Krita my professional image editor by default, leaving aside other options that cost a lot of money on licenses. After having learned to handle krita, the results of my work are the same as with the previous software I used but without the extra cost.
I liked Krita that has a great facility to recognize the graphic tablet like XPPEN ( https://www.xp-pen.com ) , working without configuring anything.
Technically it is a software very similar to Gimp (it is a fork) so it inherits many features and a lot of good things.