Impossible to render Models with transparent background

[Noltibus]

I'm trying to render a model, which consists of text on a transparent background. However, the background is rendered completely black with the text on it. Is it even possible to render transparency? You can take a look at the models here: models.zip

[ngreedy]

use GLTextureView may help

[zhangwenxiang]

Hello, have you solved the problem of black background? I had the same problem.