Emissive Materials - masking

Hi All,
is D5 able to mask emissive materials with a gradient?

the image with the black/pink bars at the top and bottom
this is a .png black and white gradient in the emissive map slot
the emissive colour is pink
I expected the coloured material to be masked out with a nice gradient. emitting pink in the middle and not emitting pink top and bottom but I got bars - so the map meeds to be just black and white?

Image with gradient
I put the gradient into the base colour map slot and I got a gradient?
is the black in this gradient then emitting light?

can you help me understand whats happening?

whats the difference between base colour map and base colour?

Also - with D5’s emissive materials I’m finding it very difficult to just having an emitting colour - or just a colour to emit without it turning white. the settings seem to start too high (or i’m missing something). 1 seems to be the lowest. they go white too quickly and at these low emitting numbers any front lights wipe the emitting material. (I’m designing Sets for TV shows so black studios)




Hello Cmeed,
Yes, first, for the emissive map slot, it is either 0 or 1, black or white.
I think you have made the gradient effect with the base color map. If you want to have emitting color, you could try putting a Rectangular Light behind it then turn on volume light.

HI Oliver - thank you for helping answer some of my questions recently. on this one I really dont understand how i can get an emissive material or use a light behind a material to get the gradient effect
how do i set up my material? which one transparent? emmissive? foliage? transparent ?
if the Opacity can only express 0 and 1 then a gradient is,i think, impossible
?

In Lumion - (sorry) but in Lumion you can set a .tga files alpha channel to the gradient - thats black to white and all that grey inbetween - you then set the alpha channel to mask emissive - set the emissve level and the mask takes effect…
So with this in mind and knowing what Unreal 4 can do how can we achive an emissive material with a gradient?

I read the manual about cloth and tried that - see the centre light box - i have a rec light pointing towards the back of the box (not outwards) material set to cloth with a black to white gradient in the opacity slot.
Its not how it would be in the real world but its sort of (cant really use it like this though )- In the real world I would have an led light behind opal/opac perspex. where the persex meets the timber top and bottom the light would fade - hence the gradient.

still fun trying

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ok, thanks for the feedback, we will try to find a solution on this scenario~