Function newMesh

loader/collada/geometry.go:71–108

(m *Mesh)

}

func newMesh(m *Mesh) (*geometry.Geometry, uint32, error) {

	// If no primitive elements present, it is a mesh of points
	if len(m.PrimitiveElements) == 0 {
		return newMeshPoints(m)
	}

	// All the primitive elements must be of the same type
	var etype reflect.Type
	for i := 0; i < len(m.PrimitiveElements); i++ {
		el := m.PrimitiveElements[i]
		if i == 0 {
			etype = reflect.TypeOf(el)
		} else {
			if reflect.TypeOf(el) != etype {
				return nil, 0, fmt.Errorf("primitive elements of different types")
			}
		}
	}

	pei := m.PrimitiveElements[0]
	switch pet := pei.(type) {
	case *Polylist:
		return newMeshPolylist(m, m.PrimitiveElements)
	case *Triangles:
		return newMeshTriangles(m, pet)
	case *Lines:
		return newMeshLines(m, pet)
	case *LineStrips:
		return newMeshLineStrips(m, pet)
	case *Trifans:
		return newMeshTrifans(m, pet)
	case *Tristrips:
		return newMeshTristrips(m, pet)
	default:
		return nil, 0, fmt.Errorf("PrimitiveElement:%T not supported", pet)
	}
}

// Creates a geometry from a polylist
// Only triangles are supported