The Domelight is actually a custom light and should be attached to the CustomShaders->LightShader slot of an AreaLight. This is the easy setup. Better you set the HighSamples very high so you won’t have to touch that anymore and will be free to do all operations from the Domelight rollout without returning to the AreaLight[…]
We noticed that mia material doesn’t exactly mimic a lambertian diffuse but instead it does compress a bit the terminator. So for those that were used to that we implemented two different models for lambertian diffuse. Lambert Mia material A side note is that Mila material instead is a full Lambert. We’re adding other diffuse models like Hanrahan-Krueger,[…]
Reflections behave following the Fresnel law. Generally reflective materials exhibit more reflection approaching a viewing angle of 90°. This is why Schlick implemented the ‘Schlick trick’. That is. You control reflection slope based on 3 simple parameters: reflection at 0°, reflections at 90° and the slope between the two. This gives a reasonable fast and[…]