Robert Swain 681c9c6dc8 bevy_pbr: Fix tangent and normal normalization (#5666) ... # Objective - Morten Mikkelsen clarified that the world normal and tangent must be normalized in the vertex stage and the interpolated values must not be normalized in the fragment stage. This is in order to match the mikktspace approach exactly. - Fixes #5514 by ensuring the tangent basis matrix (TBN) is orthonormal ## Solution - Normalize the world normal in the vertex stage and not the fragment stage - Normalize the world tangent xyz in the vertex stage - Take into account the sign of the determinant of the local to world matrix when calculating the bitangent --- ## Changelog - Fixed - scaling a model that uses normal mapping now has correct lighting again		2022-08-18 21:54:40 +00:00
..
src	bevy_pbr: Fix tangent and normal normalization (#5666)	2022-08-18 21:54:40 +00:00
Cargo.toml	Make Resource trait opt-in, requiring #[derive(Resource)] V2 (#5577)	2022-08-08 21:36:35 +00:00