PBR textures support (Normal maps, height maps, emitter maps, specular maps) - Githubissues

chunky-dev / chunky

A path tracer to create realistic images of your Minecraft worlds.

https://chunky-dev.github.io/docs

GNU General Public License v3.0

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PBR textures support (Normal maps, height maps, emitter maps, specular maps) #751

Open carterlasalle opened 3 years ago

carterlasalle commented 3 years ago

Allows support for PBR texture packs, so 3d textures get rendered

leMaik commented 3 years ago

This is a big feature and actually PBR includes multiple features:

[x] Normal maps (implementation started)
[ ] Height/Parallax Occlusion maps
[x] Specular maps
- [x] Emitter maps
- [x] Roughness maps
- [x] Reflectance maps
- [x] Metalness maps
- [ ] Predefined f0 values for complex Fresnel equation (LabPBR 1.3)

Branch with normal maps: https://github.com/leMaik/chunky/tree/json-block-models-and-normal-maps (it's pretty slow. I hope that it'll be ready to be merged some day though)

Branch with specular maps (emittance, roughness, reflectance): https://github.com/leMaik/chunky/tree/pbr

Height maps are a whole different topic, but @jackjt8 and me already looked a bit into how it can be done.

Same issue in my fork: https://github.com/leMaik/chunky/issues/14