I'll do my best to explain this one, but one of the things that drives a few people away from ASP (Art Studio Pro) are certain layer lighting options, such as Linear Dodge - Add. I feel a little bad using Procreate as a direct comparison, but this is true for other programs as well. If I save a PSD from ASP and directly reupload it to another app like Proc with the same exact settings, I will get a different picture if I am using those layer lighting settings.
Edit: Specifically specifically, it would be nice if the lighting options did more than just turn white.
The specific settings in question are:
- Linear Dodge - Add
- Vivid Light
- Hard Mix
Here are a few pics illustrating the differences. This first example is using the "Linear Dodge - Add" layer setting.
And this is the same PSD and settings moved over to Procreate
EDIT: Adding a note here that Clip studio Paint can do the same thing, but Photoshop cannot.
Here is a larger graph comparing lighting options. The vertical colored lines are stable, the horizontal lines are the ones with the specific layer setting.
Art Studio Pro: