/3/ - 3DCG

Hello 3DCG, i'd appreciate some help learning about 3D, specifically animation. i don't know much yet, but i'm trying to learn and i had 2 questions. thank you

there was this app I remember which converted footage into 3D rendered environments. i'm not looking for quality or anything professional, i just want to quickly convert images into these low poly, weird 3D like pic rel

pic came from this video:
https://www.youtube.com/watch?v=evOpfRkZjDM
check it out, it has that distorted, low quality, low polygon look i'm trying to recreate. and if i'm not mistaken they used that app. any recommendations are welcome

i'd also like to know which programs experts here recommend to beginners getting into 3D, specifically animation. i read the sticky and it seems to be more oriented towards modeling. so as a beginner looking primarily to composite scenes, import low poly models, some light character animation & do some basic camera work, which program would you recommend? maybe some underground, lesser known, older programs that you see people rarely mention? i'm open to anything, i played around with Bryce 3D and it's pretty incredible

thank you!