Use HDRI/EXR

HDRI records the lighting information in the picture environment, so it can provide both lighting and exterior information of the picture. Many HDRI files are available in the form of panoramas, we can also use it as environment background to produce reflection and refraction.

Differences between HDRI and panorama image:

Panorama image: general image contains a 360-degree range scene without lighting information, it can be JPG format and TGA format etc., belongs to Low-Dynamic Range Radiance Image.

D5 Render provides several commonly used HDRI. You can also customize other HDRI files according to your need.

Use non-involved rendering material

Set background plat around the model, apply suitable maps on the background plat, then check Invisible in raytracing.

This can make the material only be visible in scene but not be calculated in rendering of the lighting. In this way, the background plat can provide outside view without blocking light.

Use Geographic Sky

Geographic Sky System can produce the realist sky and sunlight based on the set date、latitude、longitude and time, while providing lighting.