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Point shapes
The point shape displays groups of points on screen. It behaves exactly as the Mesh shapes or Line shapes.
The point shape is created using the RED::Factory and the CID_REDPointShape, as all other shapes: See Creating and destroying shapes for details. It implements the given set of interfaces:
| Interface | Description |
|---|---|
| RED::IPointShape | Point management API. |
| RED::IShape | Global shape API. Controls shape tree navigation and shape attributes. |
| RED::IUserData | User data API to store application custom data associated to a shape. |
| RED::IChunkSaver | Shape serialization interface. |
| RED::IReferenceSolving | Shape serialization interface. |
The point shape works exactly as the mesh does: APIs are very similar for the management of data arrays: See Geometry definition APIs for all the details. However, the registration of points to be displayed uses RED::IPointShape::AddPoints.
Point shapes are using the same primitive indexing. While it could sound a bit redundant at a first look, we have kept an indexed rendering system for points to have points behave like the other geometry shapes. Therefore, to render points 0, 1, 2 you need to have data arrays with 3 points at least AND a point index that contain 0, 1, 2 to draw.
Point shapes can share their data as line shape or mesh shapes do. The mechanisms are identical and detailed in the Mesh shapes page.
 Line shapes | Light shapes |
