Painting with color opacity < 100

Bug #587642 reported by Jonathan Pobst on 2010-05-30
6
This bug affects 1 person
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Pinta
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Bug Description

Currently if your opacity is < 100 painting you have to move the mouse really fast to prevent the opacity build up on each stroke. Perhaps we can modify this to be more like Paint.net or Photoshop that limits the painting activity.

jpobst February 15, 2010

I was surprised when I checked PDN. They have the same behavior as us. PS does it 'correctly'.

I agree we should do better in the future.

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joehillen February 15, 2010

Yeah, that was the brush weirdness I was talking about.

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jpobst February 15, 2010

Off the top of my head, we could:
Create a temp layer on mouse down
Remove the alpha channel from the selected color
Set the temp layer's opacity to the correct alpha
Draw on the new layer on mouse move
On mouse up, apply the temp layer to the image at the requested opacity

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deckarep February 15, 2010

that's not a bad solution and should perform pretty well!

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