Light Energy Display (+Light Profile)

[bkircher]

Would be great if Indigo could generate Light-Intensity Renderings,
that would translate the Normal Colours into a diagnostic display of light energy per cm2, or something like this...

That would make use of the physically accurracy inherent in the unbiased approach and be a nice feature especially for architectural / ergonomic purposes, although it could probably be useful as a scene diagnostic tool.

(Would work nicely with IES/Eulumdat profiles.)

[mrCarnivore]

How should indigo display these intensities?

If it's via an image with different grey-values, you already have that when you use a diffuse material on every surface and then not use tonemapping (=use linear tonemapping). All you ave to do left is find a correspondence between the grey values and the absolute light intensity...

[bkircher]

I think maybe this can be managed translating greyscale-values to
readable informations, yet:

- Inspirer and Dialux offer this feature (Falschfarben, colour-coding) to enhance analysis.

- You have to change all your materials to meaningful greyscales,
consider Gamma-Correction, etc, and even then: If you have a red, blue and green painted room and substitute all the colours against a 33% grey (if that's the correct math here), is the result the same?

[To be honest, right know I'm more interested in the bidir-feature than in ergonomics, but still: If someone asks you: Is this workplace ergonomically lit and conforming to work-law- it would be great to be able to say: I know a tool that can give me this answer, that integrates into my favorite 3d-Package, and that is free if used on a small scale.]