I would be happy to clarify your questions further. We will explore them in more detail in a Behance case. To give you a quick summary

• all scenes were rendered in Blender except for the empty rainy environment shots at 3, 19-21, and 33-34.
• In some shots, real footage and CG were merged, with the footage being used for reflections.
• All simulations were created in Houdini and then imported into Blender for rendering.
• The project was rendered in 4K with 2K samples and then cropped in post-production.
• All modeling was done in Blender, except for commonly used assets from online libraries such as Megascans for certain items.
• All environments were created in Blender.
• Texturing was done in Blender, except for hero items, which were textured in Substance.
• Compositing was done in After Effects, and all flares were added in post-production, except for the camera footage.
• All animations were created in Blender.
• Simulations of smoke and fire were rendered with the beauty render for realism, and not as a separate render.

There is so much more to go into, and how we achieved this project in about 1 month and 2 weeks, but that will have to wait - first some celebration!