Error while loading the vrml file.

I’m working with a VRML model and ran into an import issue using Open Cascade 7.7.

My VRML file contains data like this:

```
MaterialBinding {
value PER_FACE_INDEXED
}
Material {
ambientColor [
0.752941 0.752941 0.752941
]
diffuseColor [
0.752941 0.752941 0.752941
]
emissiveColor [
0.158118 0.158118 0.158118
]
specularColor [
0.662588 0.662588 0.662588
]
shininess [
0.210000
]
transparency [
0.000000
]
}
```

The first issue is that when reading the `ambientColor` node, the parser only recognizes the opening line (`ambientColor [`) but does not capture the values on the following lines until the closing bracket. I’ve made some changes in the source code to work around this, but parsing still fails because Open Cascade 7.7 does not support the `ambientColor` node at all.

My questions are:

1. Which VRML nodes are unsupported in Open Cascade 7.7?
2. Are these nodes supported in newer versions, such as 7.9?

Any guidance or documentation references would be greatly appreciated.