This section describes billboarding.
Billboarding is the process of controlling the orientation of polygons according to the orientation of the viewpoint.
Table 1. Types of Billboards
Billboard Types | Description |
---|---|
World (Standard) | Rotates to display with the z-axis parallel with the camera lens axis. In World billboarding, the scale and rotation of the parent node influences the process and the z-axis is always parallel with the camera lens axis. |
World Viewpoint (Standard Persp) | Rotates to display with the z-axis facing the camera. In World Viewpoint billboarding, the scale and rotation of the parent node influences the process and the z-axis always faces the camera. ![]() |
Screen (Rotate) | Rotates to display with the z-axis parallel with the camera lens axis. In Screen billboarding, the y-axis is tethered to the camera's up direction and the x-axis is always parallel with the camera lens axis. Influenced by scale of the parent node. |
Screen Viewpoint (Rotate Persp) | Rotates to display with the z-axis facing the camera. In Screen Viewpoint billboarding, the y-axis is tethered to the camera's up direction and the x-axis always faces the camera. Influenced by scale of the parent node. ![]() |
Y Axial (Y-axis Rotate) | Rotates only around the y-axis to display with the z-axis parallel with the camera lens axis. In Y Axial billboarding, only the y-axis rotates and the z-axis is always parallel with the camera lens axis.Influenced by scale and rotate of the parent node. |
Y Axial Viewpoint (Y-axis Rotate Persp) | Rotates only around the y-axis to display with the z-axis facing the camera. In Y Axial Viewpoint billboarding, only the y-axis rotates and the z-axis always faces the camera. Influenced by scale and rotate of the parent node. ![]() |
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