Output resolution has negligible impact on VRAM use: 32M for a 4-byte buffer for 4k, 8M for 1080p. It’s texture and mesh data that eats VRAM, texture and mesh data that’s bound to be different between different cameras and thus, as I already said, can’t be shared, you need to calculate with 4x VRAM use because you need to cover the worst-case scenario.
Output resolution has negligible impact on VRAM use: 32M for a 4-byte buffer for 4k, 8M for 1080p. It’s texture and mesh data that eats VRAM, texture and mesh data that’s bound to be different between different cameras and thus, as I already said, can’t be shared, you need to calculate with 4x VRAM use because you need to cover the worst-case scenario.