2 Commits

Author	SHA1	Message	Date
Richard Braakman	e626337b00	Use the shorthand functions to construct Val in examples (#24096) ... This is my first bevy PR, please tell me if I'm doing anything wrong. # Objective Contribute to #22695. Showcase the preferred coding style in all examples. ## Solution Replace Val:: constructors with the more ergonomic shorthand functions. Change their float literals to integer literals if they are integral. Exceptions: - const contexts (the shorthand functions are not const) - inside bsn! macros (these are new and presumably know what they are doing) - in testbed (these are not really examples) - Val::ZERO (no helper function) ## Testing Ran the changed examples before and after, except the library example `widgets` where I just checked that it still builds. ## Context There was PR #22765 that fixed the same thing but only in the UI examples. --------- Co-authored-by: ickshonpe <david.curthoys@googlemail.com>	2026-05-03 23:54:21 +00:00
Dylan Sechet	128450bdcc	Add rectangular area lights (#23288) ... # Objective Adds initial support for rectangle area lights, closing #7662. Implements Linearly Transformed Cosines ([Heitz et al, 2016](https://eheitzresearch.wordpress.com/415-2/)), with some tricks from [these slides](https://advances.realtimerendering.com/s2016/s2016_ltc_rnd.pdf) and [the reference implementation](https://github.com/selfshadow/ltc_code). ## Limitations There's currently no support for: - Anisotropic materials (there's [a follow-up paper](https://aakashkt.github.io/ltc_anisotropic.html) that shouldn't be too hard to implement on top of this, though) - Shadows - Textured lights - Clustering ## Testing - Compared results to eevee/cycles, see showcase section. - Ran the new example with `cargo run --example rect_light --features free_camera`, and made sure everythign works at grazing angles and from behind the light. - Clearcoat and transmission could probably use more testing, I just made sure nothing looked obviously broken. --- ## Showcase <img width="1919" height="941" alt="Showcase" src="https://github.com/user-attachments/assets/f506f05c-4869-4387-aeba-d16944497825" /> <img width="1919" height="941" alt="Screenshot From 2026-03-11 11-43-42" src="https://github.com/user-attachments/assets/c4a44903-784f-4c3e-bd44-84c3fe7bff29" /> Varying ground plane roughness: 	2026-04-06 22:28:53 +00:00