element forms a surface of an isosceles triangle sized 1x1, lying in the X-Y plane and balanced around the coordinate system origin. The coordinates of the triangle vertices are (-0.5, -0.5, 0), (0, 0.5, 0), and (0.5, -0.5, 0). The normals located in the vertices are (0, 0, -1). The texture coordinates in the vertices are (0, 1), (0.5, 0), and (1, 1). The triangle is oriented in the negative Z axis direction, i.e. facing the default camera
. The element returns the identification number
of the created triangle.
As a default, the triangle is visible from the front side only. Its visibility is changeable by the visible object side
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