coco annotation merge for multiple .blend files about blenderproc

[ErikDerGute]

Hello, im not an author but maybe I could help you. When my understanding is correct your script renders 30 frames of every *.blend file. Since you render for every *.blend file, your output is overwritten for each iteration in "for single in blend_list:". You can use "append_to_existing_output=True" in your bproc.writer.write_coco_annotations writer. This should resolve your issue. Maybe it is useful for you to get rid of all the old stuff in the scene using bp.clean_up() or at least use bp.utility.reset_keyframes() before rendering multiple times.

[soans1994]

@ErikDerGute
Thank you for replying bro
I will try it