Rocks and trees model does not display properly

[cx20]

I tried to display the glTF sample model below in RedGL.
https://ft-lab.github.io/gltf.html

However, in the library before a while, the Rocks and trees model could be displayed, but it seems that it is not displayed correctly in the latest version.

RedGL 2018.01.16 + Rocks and trees model result:

RedGL 2018.01.21 + Rocks and trees model result:

[redcamel]

@cx20 This is a bug after adding VertexColor parsing function(#456).
I will check the relationship between VertexColor and BaseColorFactor. Thank you for this report.

[redcamel]

@cx20 resolve this issue.

try this link

[cx20]

I confirmed that the problem was solved with the latest version.
RedGL 2019.01.26 + Rocks and trees model result: