Examples: Add RoomEnvironment to alpha hash example

[donmccurdy]

Related:

• Examples: Add material.alphaHash example #26341

[WestLangley]

This is what I got when I set roughness to 0.2.

Also, if you are using RoomEnvironment, I would expect to see tone mapping and exposure set.

[Mugen87]

Do you mind setting the useLegacyLights flag to false like in all other examples?

[donmccurdy]

Do you mind setting the useLegacyLights flag to false like in all other examples?

Done. 👍

if you are using RoomEnvironment, I would expect to see tone mapping and exposure set.

While I agree on the importance of tone mapping in any lit scene, I'm not sure that I'm supportive of putting ACES Filmic on all of our examples as a default (or our other current tone mapping choices, for that matter). If that is the proposed direction, perhaps we can discuss in a new thread?

[donmccurdy]

It seems the CI is failing on this example. Perhaps the alpha hashing is non-deterministic across GPUs? I've added it to the exception list for now.