Im my scene, a point light is right above a table, and the light is textured to mimic a projector.
However, the projection is slightly distorted. Is there a way to solve this problem?
The script node is only for changing the colour of the texture, it does not affect how the texture is mapped.
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Henricus V.
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As I see now, I don't think I have understood right the issue - the problem is the light position or the texture mapping of the square mesh? – LDCO Sep 09 '16 at 14:05
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For the light position play with the mapping "location" values. For the fireflies, check here: www.blenderguru.com/articles/7-ways-get-rid-fireflies/ – LDCO Sep 09 '16 at 04:14
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Wanted to add an answer here since this comes up first in google:
Between your Texture Coordinate node and your Mapping node, you should divide the X and Y parts of the normal vector by the Z part, and set the Z part to 1.
This was apparently reported as a bug in 2010, deemed expected behavior, and never fixed:
https://developer.blender.org/T22272
so thanks to the original reporter for the analysis and the solution.
Kiki W.
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