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New Emitter Material ??

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Re: New Emitter Material ??

Unread postby mdkai » Fri Feb 01, 2019 10:14 pm

No its a much bigger picture.
The idea is that lights types, objects and light materials are unified.
Under the hood every light , emisse object or material will be treated as the same light material , that includes all light specific parameters, like casting shadows, shadow color, and of course to be able to be scattered a few million times without a problem.
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Re: New Emitter Material ??

Unread postby Kramon » Sat Feb 02, 2019 3:33 pm

So like in cycles right? i mean can someone explain me what detail i am missing?
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Re: New Emitter Material ??

Unread postby mdkai » Sat Feb 02, 2019 11:16 pm

No, cycles does not have "light" specific properties on the material (!) level, like attenuation or path depth.
These parameters exists usually on the object level, like the mesh light or any other light types.

Clarisse light concept takes two weakspot and turn it into a strong point.
1. Remove the problem of emissive light sampling and mesh lights, and
2. make all lights scatter-able without loosing performance.

So what they do is creating a material, which acts as a light type with all properties needed, Including sampling, path depth, shadow groups etc.
Then this material is not only available as material node, for you to place on ANY mesh (removing the need for an extra mesh light), it is also sampled clean and can be scattered. All other lights like spot and point light will also be based on that principle, though this would happend under the hood.

Have a look at this demo they did https://youtu.be/QPObSckvH5g?t=885 which shows this feature.

Cheers
Kai
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Re: New Emitter Material ??

Unread postby ryder » Sun Feb 03, 2019 3:57 am

Kramon wrote:So like in cycles right? i mean can someone explain me what detail i am missing?



Well, Can cycles Scatter Millions or even Trillions of meshlight without its render time fly through the roof?
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Re: New Emitter Material ??

Unread postby ashachar » Fri Sep 06, 2019 9:02 pm

Sam, is this proposed emitter material is an EDF? Would it also allow for meshes with this material to go into the light hierarchy?
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