Amira rendering bugfix

Notes from Yuxuan:

The dataset I tested is located “data/HFIR/CG1D/IPTS-33495/shared/processed_data/rockit/2024_05_02_Inconel718”.

I am able to connect and load a 3.6 GB recon data. It shows 62% memory utilization.

Tried volume rendering, but it does not render anything. The module is loaded and I can change settings. But just no rendering. Maybe because the machine is lacking GPU?

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