Max Corona Render [verified]: 3d

Corona is physically accurate. Go to Customize > Unit Setup . Set your display units to (for furniture/products) or Meters (for buildings). This ensures your lights decay correctly over distance.

Most beginners crank "Max Sample Intensity" (MSI) to 100 and "Passes" to 1000. This is inefficient. Here is the professional workflow for : 3d max corona render