The chromium ball is made of physical material or traditional material.

When using cr material ball, we should choose the appropriate material type according to the actual needs and effect requirements.

If you need a more realistic effect, it is recommended to choose a solid material. Because physical materials can simulate the physical properties of real objects, such as reflectivity, refractive index, diffuse reflection, etc., they can better restore the appearance and texture of real objects.

In contrast, traditional materials are simpler and more versatile, and generally only provide basic surface parameters and color options. In the case of low requirements for the scene, you can choose traditional materials.

Of course, there are some limitations and challenges in choosing physical materials. First of all, physical materials have complex calculation and rendering costs, which require more computing resources and time. Secondly, the degree of freedom of physical materials is high, which requires more detailed and accurate adjustment and setting, and requires higher skills and experience of users.