The techniques used to create realistic 3D exterior renders vary depending on the artist or software used. Common techniques include using materials like textures, lighting, and shadows to create a lifelike image. Additionally, techniques like ambient occlusion, depth of field, and volumetric lighting may also be used to add extra realism to the image. Other techniques such as post-processing, transparency, and reflection may also be used to further enhance the visual effect of the 3D render. https://the2d3dfloorplancompany.com/3d-exterior-design-rendering-services/