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Lighting La Salle Chapter 5: TV-Lit

By Luciano Iurino
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Date Added: 7th June 2012
Software used:
Maya, mental ray

Feel free to experiment and play with the "mia_exposure_node" parameters until you get the desired result. Keep in mind that for this kind of illumination the picture should be quite contrasted and saturated, since the only light source is the TV screen and there is no other light coming from outside.

Now we're ready to render the final color pass. Set the desired resolution for the rendering, increase the AA settings in the Quality tab (Render Settings) and if you still have splotches and spots caused by the photons, try to increase both the GI and FG Accuracy values. In Fig.13 you can see the final color pass rendering.

1483_tid_Fig13.jpg
Fig. 13

Just like for the other tutorial parts, we also need an Ambient Occlusion pass. Select all the geometry objects in the scene and assign them to a new Render Layer called AO (Fig.14).

1483_tid_Fig14.jpg
Fig. 14

Create a new Surface Shader in the Hypershade and connect a "mib_amb_occlusion" node to it. You can see its parameters in Fig.15.

1483_tid_Fig15.jpg
Fig. 15

And here's the AO pass rendering (Fig.16).

1483_tid_Fig16.jpg
Fig. 16

Open both the color and AO passes in Photoshop. Copy the AO pass over the color one and set its Opacity value to about 63. Also, set its blending mode to Overlay (Fig.17).

1483_tid_Fig17.jpg
Fig. 17

This way we'll have a nice, contrasted image, maintaining the saturation. Use the Image > Adjust > Variations tool to adjust the overall color and shading. In this case, some more Cyan/Blue was added (Fig.18).

1483_tid_Fig18.jpg
Fig. 18

Select the TV screen (or you can just render it separately in Maya and save it) and duplicate it over a new layer (Ctrl + J shortcut key) (Fig.19).

1483_tid_Fig19.jpg
Fig. 19

Apply a fair amount of Gaussian Blur to it and use the Hue/Saturation tool to create a nice and colored glow effect for the TV screen (Fig.20).

1483_tid_Fig20.jpg
Fig. 20

In Fig.21 you can see the final picture.

1483_tid_Fig21.jpg
Fig. 21

So this is it. The interior lighting tutorial series ends here. I hope it has been useful and inspiring for anyone following. Happy rendering and see you soon!





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(ID: 123631, pid: 0) Eyeworks on Fri, 08 June 2012 4:07pm
Thank you for the tutorial. It's nice to see the process behind realistic 3d images. However I would like to comment on something. Although I'm a Max user and work with Mental Ray there I believe the room in the final image of the tutorial has too much bright light in it. I think a room of such size would be darker with only the tv on. The center of the image seems lit by a photographic camera's flash and in general it's kind of white rather than having the bluish tones appearing on the tv. Thanks again for sharing your thoughts and process. The room is beautiful nevertheless.
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