Surface mode is the default point-cloud display mode.
Size
Point size controls the “closeness” of a point cloud. When working with sparse point clouds, increase it slowly. Avoid overly large size values since this causes blurriness.
Color smoothing
Color smoothing improves visual quality and is checked by default. It represents the roughness of the surface. A small value makes for a rougher appearance, while a large value suggests a smooth surface. Avoid overly large smoothness values since this causes colors to blend with the background.
Shaded
Enable this option to shade a point cloud that contains normals by the default light source at the camera position.
We strongly recommend enabling the shaded mode when using object color, elevation, or intensity color sources.