A3DCallbackProgressStart

type A3DCallbackProgressStart

A callback function the library invokes as it prepares to perform a potentially time-consuming process.

Processing phase | Description

• 0 | Undefined.
• 1 | Parsing the file
• 2 | Writing file
• 3 | Reading or building the model, which follows parsing the file (processing phase 1)

The argument identifies the processing phase, as follows:

2.0