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[Process Polygon Object between Objects]

The drawing order of

  1. objects is drawn from the parent cluster to the child cluster, and when multiple objects are connected to the cluster, they are drawn in the order of connection.
    In the above example, Object0, Object1, Object2 are drawn in this order.

  2. When the inter-object connection polygon information is connected to the cluster at the time of drawing, the vertex data that has been coordinate-converted to the viewpoint coordinate system is set in the vertex data table of the corresponding inter-object connection polygon object according to the specified table To do.
    For Gouraud shading, the calculated vertex brightness is set in the vertex normal data table of the inter-object connected polygon object.
    In the above example, the viewpoint coordinate system vertex data (0,1,2,3) of InbetInf0 set to Object0 is set to the vertex data (4,5,6,7) of Object2, and InbetInf1 is set to the viewpoint coordinate system vertex data of Object1 ( Set 4,5,6,7) to the vertex data (0,1,2,3) of Object2.

  3. If the drawing object is an inter-object connected polygon object, the normal vector of each surface is obtained from the converted vertex to the viewpoint coordinate system, and drawing is performed according to the drawing mode.
    In the above example, Object2 is an inter-object connected polygon object.

  4. Inter-object connection polygon object setting conditions
    • When connecting to a cluster as one of multiple objects, connect to the end of the object chain.
    • Set the correction value for the surface normal vector in the object table as a negative value.

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