V-Ray for Rhino Manual - Rum

Emissive Textures
Except using colors as light source for the self-illuminated materials, you can also use texture map
directly as light source.
1. Click on the “m” to the right of the Color under Emissive control panel.
2. The Texture Editor will then open up. Select Bitmap from Type's pull down menu and you will see the
control panel show up to the right.
3. Under Bitmap, click on the “m” to the
right of the file and pick a bitmap to use as
the light source
4. After the bitmap is selected, the “m” now
becomes “M”. Click on the Update button to
preview the bitmap. Click on Apply and you
can use this bitmap as the light source.
5. Click on Update Preview and you will see the Bitmap is now on the material ball. Render it and you will get
the result as the image on the right.
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