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A google search found this demo of a mirror in the BGE Video:Mirror Made in Blender Game Engine but I can't find out how to setup the material. Unlike in the BI renderer the option Mirror isn't available when in BGE.

What tricks do I need to know?

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  • $\begingroup$ It is called render to texture, you can also set it to mirror instead of UV, Generated, Object...etc. Here is a simple tutorial on render to texture inside of the blender game engine. youtube.com/watch?v=mPFhX_ogL2Y $\endgroup$ Jun 7, 2014 at 18:17

2 Answers 2

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You can easily fake it for Multitexture and GLSL - shading modes:

  • Give the Object a material
  • Give the material an image texture
  • In the Mapping panel of that texture, set the Coordinates to Reflection

To make it work, you should use a sphere map and use camera view. I did this sphere map by setting the camera to orthographic (Orthographic Scale of 2.0, because the sphere is 2 blender units in diameter) and rendering a reflective sphere.

Spheremap generated with Blender

The result looks like this:

Suzie with reflection map applied

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It is possible by using bge.texture.ImageMirror. Basically the mirror objects texture is frame by frame replaced with a video-texture which is captured by another camera.

enter image description here

A tutorial and an example .blend file which works with Blender 2.68.

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  • $\begingroup$ So is this always one frame behind? $\endgroup$
    – wchargin
    Sep 8, 2013 at 18:38
  • $\begingroup$ @WChargin currently I don't understand the implications of the script included in the .blend file. $\endgroup$
    – stacker
    Sep 8, 2013 at 20:45
  • $\begingroup$ Image without anti-aliasing is a bit strange... But it does work for me when I download a 2.6 example blend and open with 2.7, but I can not make one in my game in 2.72. Who can help me? $\endgroup$ Dec 27, 2014 at 19:56

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