Lighting Analysis with Unreal Engine

Hello,

I would like to make an interactive lighting analysis of my model.
so basically I would like to make a false color render which allows me to see the lux on the surfaces (I’ve attached a couple of pictures as example).

Vray has for example a lighting analysis tool which allows the user make such analysis.

I also wonder if unreal engine would be as accurate as Vray.

Thanks a lot

270258-figure-l-qq-fc2.jpg

270259-figure-l-qq-fc1.jpg

I belive this will be hard to make without diving into the render pipeline, which could be pretty hard.
Maybe thought about making a post process material based on the image’s brightness? You could also for this switch all materials to the same white color. Just an idea.

Pretty much this. If its based on intensity you can apply a default material to the scene( or a huge decal to override the buffers) and use a postprocess material blended before the tonemapping, getting the hd range and applying a lut gradient so its easy to see like in the pictures.

Just do the lighting analysis in ladybug-honeybee for a grasshopper (Rhinoceros 3D). Bake the resulting mesh and export it as STL or OBJ file with the colours in the vertex nodes. Then in Unreal tick the option to visualize vertex colours

Hope this could help

cheers

Hi there,

I was wondering if you found a solution for this, I am running into the same challenge atm.

Kind regards,

Siebren