We need to talk about light

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  • Hi Enscape team,


    I would like to address a couple things concerning lighting that could enhance our workflow and image quality.


    First, I use Enscape in Rhino and I really miss a proper lighting solution. Rhino lights are not well designed and miss a couple of features, as follows (I know some of these had already been discussed previously and Mcneel team already showed no interest in producing better lights, but I know it is possible since Vray Rhino does have better lights):

    • Spot lights - In Rhino it is really dull, it doesn't support IES and also seems to change intensity not linearly with jumps of intensity in some value ranges. also the intensity value has no real meaning in real world.
    • Area Lights and linear lights, they have some weird behavior in Rhino. They produce shadows as if they were point lights, see example below. It is a 280 cm x 8 cm, 50 intensity rectangular light at 30 cm of the wall with some teapots.



    • Area Light bean weird behavior. I made a test with some square lights in rhino and their bean has no consistency. Sometimes it behaves properly, showing a square bean and sometimes they produce a round bean. Also if you keep playing with the lights moving then closer or farther from the wall, they will change the bean from round to square with no reason whatsoever. The example below have al the same light a 100 x 100 cm, 50 intensity square light with 12 to 20 cm offset from the walls.


    • To keep consistency between projects and real world, Intensity parameters and color should use industry standards. For intensity lumens and for color temperature kelvin.
    • Self illuminated materials use luminance (cd/m²) but light products usually provide information in lumens, so I believe it would be better for a workflow to use industry standards (ps. I know Luminance and Luminous Flux are different concepts and don't know exactly how to convert it)
    • Self illuminated materials are not affected by the "Artificial Light Brightness" slider. It is desirable, otherwise, it will compensate all other lights but not the self illuminated.
    • "Light View" mode is an amazing feature to study artificial lights and light design projects, I miss the possibility to show the intensity of specific points when hovering the mouse cursor above it. Maybe also show the average illuminance of a space. Light designers would surely benefit of that.
    • Have the ability to instantiate lights, right now we need to select each light to change a group of similar lights.


    I believe that is it, your product is amazing, fast, great quality renders and constantly improving.

    Congratulations,

    Alexandre

    • Official Post

    Thank you alexandrecollaco , I will gladly forward all your valuable feedback accordingly. A few things you have asked for are already feature requests on our agenda, so I'll then add your upvote to these as well.


    Also, regarding the behavior you see with the rectangle light, allow me to share a statement from our developers:

    "It's due to the limited light radius we need to use in real-time rendering. I assume the instances where there's a clear rounded shape visible have a smaller radius than the others. To avoid a hard cut-off line (which would look terrible) we attenuate the light intensity towards the border of the light radius. This attenuation area becomes less visible for larger radii and then the square area light shading is more prominent."


    I hope that makes it a bit more clear to you. :)