Dynamic State Geometry / Shade Group - Relation to Matrix-based Methods

[charlie.brooker]

Hi @mikkel,

Apologies if this has been covered somewhere elsewhere before.

In our office we’ve been doing some more research and learning about vanilla Radiance. Something I’m struggling to get my head around is how the dynamic states and shade groups relate to the different Radiance phase methods.

Please would you be able to explain how the current HB Radiance set up relates to the following diagram from Sarith’s Daylighting Simulations with Radiance
using Matrix-based Methods?

Or point us to the relevant code on GitHub (the way recipes are written is still a bit mind boggling for me).

Thanks in advance,
Charlie

[mikkel]

Hi @charlie.brooker,

Everything in HB Radiance goes through “2. Change in External non-coplanar shading?”

Dynamic Shade Groups are not supported. Only Dynamic Aperture Groups are supported in enhanced 2-phase. With the Aperture Groups you can technically add any geometry you want as Dynamic State Geometry to emulate Shade Groups until they are supported.

The later phases will only kick in if the parent face of the Aperture has a BSDF modifier. But that is irrelevant right now as the recipes are not available.