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BumpNormals v1.0
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Contributor: Michael Garrett
Use a 2D image to add bump to a 3D render of normal vectors.
Requirements:
5.1, 5.2, 6.0, 6.1 or later
Linux, Mac, Windows
5.1, 5.2, 6.0, 6.1 or later
Linux, Mac, Windows
15 Jul 2010
1661
Use a 2D single channel image to add bump to a 3D render of normal vectors. The result can be used to affect relighting.
A UV render is required in order to remap the input image to the 3D render. The intermediate step of converting the bump value to xy vectors happens in 2D and is then UV mapped. This means the vector is correctly multiplied with the normal along the surface tangents and gives a better result.
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Comments
I can't figure out well how does it work
The right input must contain Normal and UV channels. For example, in VRay there are VRayNormals and VRaySamplerInfo channels for this.
Prior to appending UV channel must be remapped into STMap through Shuffle (usually R and G channels)
The rest of the parameters as on the author's screenshot.
You'll get the modified Normal Map channel that you can use later for relighting as usual (see tutors).
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