01-21-2023, 04:13 PM
@SMcNeill
You have a good look...the images show some impurities... So no one background color!
This following image of a red star has been made by Paint of Windows with one color for background and it works very well in the demo of Terry Ritchie for collision detected by mask.
![[Image: starRed3.png]](https://i.ibb.co/LY7D41d/starRed3.png)
@Bplus + @TerryRitchie
It is because what we see as one black background in the star's image is a not a pure (made by one color) background until the edges as already pointed out by Steve!
I made another RedStarimage.png using Paint of Windows: I loaded RedStar.png , then I select a closer area around the star and I copied it.
Then I made another image, background set to black by fillcolor tool of Paint and pasting the redStar in it.
So it works well!
You have a good look...the images show some impurities... So no one background color!
This following image of a red star has been made by Paint of Windows with one color for background and it works very well in the demo of Terry Ritchie for collision detected by mask.
@Bplus + @TerryRitchie
It is because what we see as one black background in the star's image is a not a pure (made by one color) background until the edges as already pointed out by Steve!
I made another RedStarimage.png using Paint of Windows: I loaded RedStar.png , then I select a closer area around the star and I copied it.
Then I made another image, background set to black by fillcolor tool of Paint and pasting the redStar in it.
So it works well!