Lighting in Unity GDC2015 talk

Unity Engine
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1

@Kuba and I gave a talk at GDC 2015 about Lighting in Unity, here are the slides with notes:
https://drive.google.com/a/unity3d.com/file/d/0B1Ca8GQ0-oAIdDV1dEd6d2JEMDQ

It covers how the Global Illumination works, current status of SSRR and some DX12 stuff.

3 Likes
2

Hi,

What is “_ScreenParamsRcp” ?
(tried to use that sample snippet)

3

It’s the multiplicative inverse of _ScreenParams, comes from a script and it’s there simply to avoid division in the shader.

_ScreenParams is defined and described in UnityShaderVariables.cginc:
// y = height
// x = width
// z = 1 + 1.0/width
// w = 1 + 1.0/height
uniform float4 _ScreenParams;

4

Would love a video of the original talk as well!

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Unfortunately the video is only accessible to those with the GDC Vault login: http://www.gdcvault.com/play/1021765/Advanced-Visual-Effects-With-DirectX

That said, the notes say pretty much everything that we said during the talk.