Hello as you can see in this screenshot, I am trying to blend the alpha of the mesh as I draw, think of it like paint hardness / intensity, But it seems the alpha overlaps. Is there a way to maintain the same alpha without it overlapping
Hello! We have some documentation on blend modes here: Introduction To Blend Modes | Babylon.js Documentation (babylonjs.com). Can you explain a bit more about what you mean by “overlap”?
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So what I mean by not overlapping is that I don’t want those edge lines to be visible when I draw, kinda like really blended. Please let me know if you need more clarification.
also i have tried the various blend modes, still can’t get what I’m looking for
Something like this maybe? I changed the transparencyMode to opaque (0) and changed alpha to 0.2. 
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sorry for the late response, I was able to achieve what I wanted using engine setAlphaBlendFunc
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