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Amr Zewail

problem with my reflection idea

3 posts in this topic

Hi biggrin.png   ... it's my first question and my first topic but i am not really new in game making but still a beginner ... 



i am using Unity3D engine and i really want to make a reflection shader like the really mirrors and reflections but i am not that good in coding... 


so i had an easy idea for the reflection but have no right way for this i am thinking about putting a camera (not the main one ofc) in the mirror object (flat plane) and making it's direction forward the mirror and somehow making the camera view the same width and height and the same position of the plane but i don't know how to put 2 active cameras in the game 


for explaining


[attachment=22162:Mirror Explain_00001.png]


and i don't want to use engine assets for my own experience smile.png


thanks ... and sorry for my bad english. happy.png


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I have recently implemented this technique using my own engine (a clone of the Unity API so should be quite similar) and it basically involved the following steps (There may be a better way to do this but this is simple):


1) add another camera just in front of the mirror facing outwards.

2) Set up this camera to render to a RenderTexture.

3) Set the mainTexture of the mirror's material to the same RenderTexture that you assigned to the mirror camera.


4) (Optional): Set the mirror's layer so that the mirror camera does not render it. Though it will probably just come out black anyway since a render texture cannot render itself to itself (if that makes sense). Luckily it is facing the other way so it wont make much difference.

Edited by Karsten_

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