Trying to create 2D pixel art lighting

Question

I am trying to create a pixel art game with lighting kind of like this alt text

With points of light and a pattern of blocky but still fading away light radiating away.

So far what I have been able to do is create a Texture 2D that is the size of the screen fill it with 30% transparent black and then for each point of light replace the pixels on the texture with the pixels from my light texture (Which is just a clear circle with dark corners) The problem with this method is that if the corners of two light points meet they overlap like this alt text

I also tried the light Projectors but unfortunately those don't work with transparency.

I only have one other idea but don't know how to implement it....

Can you write per-pixel shaders for Unity and if so, how?

Also any other solutions to this problem would be great

Answer 1

Answer by Ash-Blue · Jul 18, 2014 at 09:04 PM

Trying to figure out something similar, Legend of Dungeon posted an interesting article on the subject http://robotloveskitty.tumblr.com/post/33164532086/legend-of-dungeon-dynamic-lighting-on-sprites

What you are really looking for probably is Sprite Lamp, but its currently under production https://www.kickstarter.com/projects/finnmorgan/sprite-lamp-dynamic-lighting-for-2d-art

So can it be done? Yes. But you'll have to figure out a slightly roundabout way at the moment.

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