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Duplicate Question of http://answers.unity3d.com/questions/559982/thermal-like-camera-effect-.html
how i can create a termo-vision effect Camera?
i need a help to create a termo vision camera, i don't have any idea to where i start -.-
I have not done that thing my self, but from the top of my head I would recommend for you would be to read about replacement shaders, Graphic.blit with a shader and OnRenderImage method in $$anonymous$$onoBehaviour.
Rendering objects that should be particularly hotter with a replacement shader, and giving them a heat signature map. Other objects that are not really interesting could have some method of generating heat signatures from the current material on them.
Another good pointer is to check out the built-in Unity image effects and get a good feel on how they work. In my experience I feel the documentation on Image effects still a little scarce :)
This is just from the top of my head, I hope this gives you a idea of where to start.
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