Mold making with Blender or other softwares

Hi,
iam not sure where to put this. I make more or less complicated organic shape models for plastic production and injection. I would like to improve these skills to know exactly how the model needs to be done because of mold problematic. Is there any analysis that can be done in blender or any other software that shows me that from some angles there are negative corners that makes the model too complicated to make mold just from two pieces. Or actually a mold software that suggest where the dividing line on the model should be.

Thank you in advance for any tips or tricks.