I have watched the excellent video posted in Holographic Photo Blending with PhotoCapture and read some about shaders.
Now I am facing a situation in which I have a project in which there is something called a “Video Panel” in the Main Camera. In this there is a Canvas and in the Canvas an Image. The Image I get is inverted so someone propose to apply a Shader.
My first question is how do I apply a shader? I understand (correct me if I am wrong) that I have to create a Material first, is that right? When i see the Image in the Inspector I see "Image(Script) with Texture and Material (both are None) so I suppose that I should apply the material with the shader there?
My second question is what is the role of shaders? I read and understand that they can run operations and modify the way images or textures are seen by the user, but is that only for the show? I am planning to do Image processing with the captured images and i am planning to do with C# scripts but seeing that some shader can for example transform all to grey (which is a operation I do in C#) can I take this result from the shader or is it just for visualization purposes only?