How to apply a bool[] to a texture?

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For my fog of war system, I have an array of booleans that determines what color each pixel of the texture is How can I set the texture based on this array of booleans? Do I have to iterate through every bool to set the individual pixels of the texture?

Answer 1

Answer by Jessespike · Feb 23, 2015 at 07:12 AM

Yes, you'll have to iterate through the texture and bool array to determine result.

http://docs.unity3d.com/ScriptReference/Texture2D.SetPixel.html

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jpthek9 · Feb 23, 2015 at 08:27 AM 0

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Thanks for the answer. I did some more snooping around and found SetPixels nearby. I think this is the right choice for me to get a Texture2D but I'm still having trouble getting it onto a plane for the visualization.

Answer 2

Answer by hexagonius · Feb 23, 2015 at 07:13 AM

For per pixel coloring, you need a fragment shader. I'm not sure if it is possible to pass in arrays, but you could transform your bool array to s texture 2D and pass that in.

Oh and you could do a postprocess effect

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Jessespike · Feb 23, 2015 at 07:16 AM 0

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I agree, a shader would be a better solution.

sniper43 · Feb 23, 2015 at 07:54 AM 0

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Still, an iteration would be need to know what to shade and what not to shade.

jpthek9 · Feb 23, 2015 at 08:22 AM 0

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ah, true. I looked into Texture2D and it has a neat SetPixel method. Ins$$anonymous$$d of a bool[], I'll use a byte[] which will work with it. Now I need to find a way to get it into a shader. Sorry I don't have much experience with them. Could you explain how to apply a Texture2D to a 'fragment shader'?

How to apply a bool[] to a texture?

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