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When implementing a MSFS Glass material inside the virtual cockpit, the parameter "glassReflectionMaskFactor" no longer functions. Instead the reflection is always present. Manually altering the value to absurd values like "100" (range shall be 0 to 1) in the .gltf file itself leads to "funky" effects. Anything form 0 to 1 leads to the same reflection amount.
The material is set very simple. No textures applied.
The material has been used to add reflections to the canopy glass. This works nicely, but cannot be tuned, as "glassReflectionMaskFactor" has no effect. Using roughness is not an option for the canopy glass.
