Description: Archive discussion
Official subforum for LunaLua - an extension framework for SMBX Engine Version 1.3 (which a core of SMBX 2.0). Share your creations that require the use of LunaLUA. You may also share info/tutorials on how to use LunaLUA.
Is there a way to change the mask of a loaded image? Yes, I know there are Draw functions with opacity control, but let's say I wanted a dither effect instead or I only wanted to change the mask of part of the image. The first thing I would do was create a 32 x 32 image with a 2 x 2 black and white check pattern:
(this is actually a 16 x 16, but you get the idea)
Now, I want to apply this to another image's mask, where some collider object overlaps the image. What I would like to do is basically "subtract" the mask from the image's mask in the overlapping zone, so that the area appears dithered, and I get a result something like this:
(white = full opacity, black = full transparency. This would use 2 overlap zones)
I'm sure this is probably too advanced for SMBX, but I'm sure it could be done with OpenGL.
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