On 19-3-2019 0:59, William F Pokorny wrote:
> If your after an actual glowing screen which will light the scene, an 
> option is to use radiosity and define the screen box/image with an 
> emissive finish: emission 1 or larger.
> 

Adding to this, I would use an .exr image format instead of .png, you 
will then really get a screen image that illuminates the surroundings 
(e.g. light probes) playing with emission set to 1 or higher.

You can easily save your png image to OpenEXR using for example Ive's 
smart utility IC: http://www.lilysoft.org/IC/ic_index.htm

-- 
Thomas

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