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I used 3 area lights, one of which was a spherical lamp and the others were rectangular. You can see more in Fig.07. Note that the intensity of light is dependent on the values of the exposure controller. I used mr photographic controller which is really very good and suitable for Mental Ray scenes.

Fig. 07


Mental Ray is a very good engine for rendering; I used simple render settings with final gather and GI for this particular work (Fig.08).

Fig. 08


After rendering the final image I extracted the passes (Z-depth and Ambient Occlusion). You can extract the Z-depth with render elements in the render options; you just add it and then change the min and max values to achieve a suitable pass.

Mental Ray contains a specific shader for generating an Ambient Occlusion pass; you should assign it to the surface map of a new Mental Ray material and then assign this material to all objects in the scene.

After extracting the passes I took them into Photoshop to composite them (Fig.09 - 11).

Fig. 09

Fig. 10

Fig. 11

You can assign Ambient Occlusion by putting it in a new layer above the original image layer and then change the blending mode to multiply.

You can assign Z-depth to a new channel in Photoshop and apply a lens blur filter and play with the values. Finally, you can add some colour correction and adjust the Levels and add some effects (such as a glow) if you want to.


And here are the final images (Fig.12 - 13). I hope this article has been helpful, thanks for reading.

Fig. 12

Fig. 13

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