This shader is an edit of Complementary Reimagined that aims to be decently fast (when compared to path tracing shaders) while having block lights cast sharp shadows.
The lighting system is not perfect. Occasional sudden brightness changes are a side-effect of the way it works and cannot be completely removed without hurting performance or removing sharp shadows from light sources. To do the latter, disable Per-Pixel Lighting in the Rethinking Voxels Settings.
This shader is developed on Iris, using an AMD graphics card on linux, and it is also tested on an NVidia graphics card on linux. While it usually works on other platforms, bugs that appear only there are not caught by my testing and hence they take longer to fix. To use this shader pack, the Iris shader loader is required. Beta 18d and older versions also work on OptiFine.
If you need support, please join the shaderLabs discord server, where this shader has a channel (#rethinking-voxels-gri573).
I have entered a partnership with Ember, a Minecraft server hosting provider. This is because Ember hosts the complementary SMP server and has provided a better hosting experience / customer support than the previous hosting service, and because they reached out asking about it. If you need to host a Minecraft server and wish to support Rethinking Voxels' development at the same time, do check them out! Using the promotional code RETHINKING in a first-time purchase will redirect 70% of the first month's fee to me as well as give you a 10% discount.
Video by youtube user iambeen that showcases rethinking voxels beta 18d (with custom settings), compared to the original reimagined:
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Terms for using, modifying and redistributing this product.
19.06.2025 · Modrinth
Screenshots and images from the original Modrinth page.









Published versions and original Modrinth files.
19.06.2025 · 3 768 910 downloads
12.05.2025 · 1 075 487 downloads
12.04.2025 · 212 712 downloads
01.04.2025 · 60 800 downloads
23.03.2025 · 95 815 downloads
22.03.2025 · 8 813 downloads
23.01.2025 · 307 057 downloads
23.01.2025 · 3 893 downloads
14.07.2024 · 2 275 400 downloads
jwapobie for doing most of the improvements15.06.2024 · 379 477 downloads
13.06.2024 · 13 912 downloads
12.06.2024 · 5 875 downloads
31.03.2024 · 377 469 downloads
27.11.2023 · 1 554 337 downloads
06.11.2023 · 60 830 downloads
27.10.2023 · 42 678 downloads
22.10.2023 · 10 338 downloads
14.10.2023 · 40 567 downloads
13.10.2023 · 3 328 downloads
12.10.2023 · 2 295 downloads
11.10.2023 · 6 401 downloads
05.10.2023 · 13 148 downloads
02.10.2023 · 22 129 downloads
01.10.2023 · 3 994 downloads
10.06.2023 · 479 908 downloads
08.06.2023 · 6 520 downloads
minecraft:light, not block light emitters in general) support07.06.2023 · 2 611 downloads
05.06.2023 · 2 314 downloads
02.06.2023 · 2 838 downloads
this version is an alpha release. it is expected to contain many bugs.
02.06.2023 · 1 023 downloads
this version is an alpha release. it is expected to contain many bugs.
There are currently 3 primary files in this version. they are identical and only made it onto the download page by mistake
14.04.2023 · 429 447 downloads
11.03.2023 · 85 928 downloads
10.03.2023 · 1 682 downloads
09.03.2023 · 1 136 downloads
06.03.2023 · 2 277 downloads
23.02.2023 · 7 367 downloads
21.02.2023 · 1 495 downloads
14.02.2023 · 6 096 downloads
07.02.2023 · 5 318 downloads
06.02.2023 · 1 686 downloads
Pixel Perfect Blocklight option to Blocklight Shadow ModeHalf Res blocklight shadow mode29.01.2023 · 17 841 downloads
27.01.2023 · 8 790 downloads
25.01.2023 · 6 398 downloads
21.01.2023 · 5 706 downloads
21.01.2023 · 773 downloads
15.01.2023 · 4 472 downloads
12.01.2023 · 1 667 downloads
12.01.2023 · 494 downloads
10.01.2023 · 1 753 downloads
08.01.2023 · 3 115 downloads
Initial Modrinth version, based on commit 92f32f38.
Changes compared to beta8 (on complementary discord server):
- fixed black lines in block light with advanced light propagation, without pixel perfect shadows.
- fixed (unintentionally) glowing entities.
- added translucent light tint slider.