1. Here's how
The largest render resolution in Lumion is Poster resolution (7680x4320 pixels).
1.1: Render the Lumion image in an uncompressed file format (e.g. .PNG or .BMP) so that there are no compression artifacts as can occur with JPG.
1.2: If you chose to render using the Print or Poster resolution then make sure to include the Print Poster Enhancer Effect.
1.3: Consider using a dedicated image re-scaling tool such as SmillaEnlarger or BenVista PhotoZoom Pro to re-scale the Poster image to the desired resolution:
Free online AI upscaler:
- External Link (free): SmillaEnlarger
- External Link: BenVista PhotoZoom Pro
- External Link (AI upscaler): Topaz: A.I. Gigapixel
- Knowledge Base: How do you adjust the DPI (or PPI) for your renderings?