Shaders and meshes:

• Erich Loftis / https://github.com/erichlof/THREE.js-PathTracing-Renderer
• ECSE x46 / https://github.com/ecsex46/fall-2019

OBJ/MAT to GLTF:

• Cesium / https://github.com/CesiumGS/obj2gltf

GLTF loader:

• Rich Tibbett / https://github.com/richtr
• mrdoob / http://mrdoob.com/
• Tony Parisi / http://www.tonyparisi.com/
• Takahiro / https://github.com/takahirox
• Don McCurdy / https://www.donmccurdy.com

HDR texture loader:

• Nikos M. / https://github.com/foo123/