GLTF 2 Glossiness is too strong

I’ve been implementing Specular Glossiness GLTF extension in my own engine and came to ThreeJS as a source of through to discover that something is off in your implementation as the glossiness is too strong.

Screenshot of your gltf loader from r88 https://threejs.org/examples/?q=gltf#webgl_loader_gltf

Metallic Roughness:
screen shot 2017-11-25 at 21 34 16 copy

Specular Glossiness:
screen shot 2017-11-25 at 21 34 05 copy

I assume the first one (Metallic-Roughness) is correct as it looks consistent with BabylonJS although the black part is too dark on both but looks better on the second screenshot (might be another issue).

screen shot 2017-11-25 at 21 51 59 copy

any my engine (PEX).

screen shot 2017-11-25 at 22 26 46 copy

Three.js version
  • r88
Browser
  • All of them
OS
  • All of them
  • Windows
  • macOS
  • Linux
  • Android
  • iOS

Author: Fantashit

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