Strange texture behaviour

[baltort]

Hi,

I'm trying to create some screen like objects and have been seeing some strange behaviour. I have built a very simple scene to replicate the effect.

If I texture the cube using a texture node connected to the diffuse channel then I get full control of the mapping when I attach a projection node. However, when I add a texture emission node and route the texture through that, I lose all control of the mapping. Changing settings in the projection node has no effect on what I'm seeing.

I've tried every permutation I can think of (including attaching a UVMAP node to the normal channel), but I can't get any control over the mapping of emission textures. Am I doing something wrong?

Thanks for any help anyone has to offer.

James.

[juanjgon]

For the screen effect you should link the texture to the "Efficiency" input, not to the "Distribution" one. Distribution can be used for IES files, but for color textures you must use the Efficiency input.

-Juanjo

[baltort]

Dear Juanjo,

You are a genius.

Many thanks!

James.