There are many criteria that determine the quality of 3D architectural renderings, and they vary for each type. However, there are certain universal rules that apply to both external and internal renderings. First of all, all objects in the scene must look natural. They must have perfect geometry, accurate size and high-resolution photorealistic textures.

Then the lighting and shadows should also look realistic. First, the ratios of light and dark parts in the image should be adjusted. Second, the appearance of the object must correlate with the position and settings of the light source within the scene. This means that some surfaces absorb the light, others reflect it, while others let it pass. Just like in the real photo.

As for the quality of the exterior, it is also important that the main object in the image visually dominates the space. This means that the 3D rendering background should only complement it, not compete with it. Both angles and views must not be distorted, as this will make the objects appear disproportionate. Also, the 3D scenes must be consistent down to the smallest detail. For example, the clothing of the people in the image must match the weather and the time of the year.

To get a high-quality 3D view of the interior, you need to make sure that there are no intersections of geometric objects and that none of the interior elements are floating in the air. These are the minimum requirements that a 3D designer must meet. You should also pay attention to the furniture and decor in the scene. Namely, the furniture pieces should be sized according to their realistic proportions. And the decoration should only subtly touch the atmosphere without cluttering the room. In addition, all patterns of objects must be carefully transferred according to their dimensions and shape.