LR17
November 29, 2021, 3:49pm
1
Hello,
mrdoob:dev ← sneha-belkhale:bpcem
opened 06:20PM - 03 Mar 19 UTC
I made an example demo of Box Projected CubeMap Environment Mapping, as a follow… up to the discussion in #15704.
The scene uses a `CubeCamera` to generate an environment map - and applies the environment map to a ground mesh that has a `MeshPhysicalMaterial` with custom shader injections that implement Box Projection, following this article:
http://devlog-martinsh.blogspot.com/2011/09/box-projected-cube-environment-mapping.html
There is also a toggle control to contrast what the environment map would look like without Box Projection.
screenshot of the scene:
<img width="709" alt="screen shot 2019-03-04 at 12 48 45 am" src="https://user-images.githubusercontent.com/17795014/53699441-d9766e80-3e1a-11e9-8b87-e756a069f18c.png">
Let me know if the shader injection snippets should be moved to another file -- although I am not sure where it should go .. maybe in the `examples/js/shaders` directory?
But I can’t find the related example on the website. Was it removed? Maybe was it implemented in threejs core
2 Likes
This is a stunning example of projection, and deserves to be in the public collection!
Thanks for tracking down the reason. Sounds like Ricardo is open to it possibly being a feature of Threejs in the future. Maybe we can figure out a way to allow a wide range of of env projections (bending reflected normals) to be injected into the shader code. A specific box projection would also be welcome though, I guess.
?