Function ShowContact

experimental/physics/debug.go:71–92

(scene *core.Node, contact *collision.Contact)

}

func ShowContact(scene *core.Node, contact *collision.Contact) {

	vertices := math32.NewArrayF32(0, 16)

	size := float32(0.0005)
	otherPoint := contact.Point.Clone().Add(contact.Normal.Clone().MultiplyScalar(-contact.Depth))
	vertices.AppendVector3(contact.Point.Clone().SetX(contact.Point.X - size))
	vertices.AppendVector3(contact.Point.Clone().SetX(contact.Point.X + size))
	vertices.AppendVector3(contact.Point.Clone().SetY(contact.Point.Y - size))
	vertices.AppendVector3(contact.Point.Clone().SetY(contact.Point.Y + size))
	vertices.AppendVector3(contact.Point.Clone().SetZ(contact.Point.Z - size))
	vertices.AppendVector3(contact.Point.Clone().SetZ(contact.Point.Z + size))
	vertices.AppendVector3(contact.Point.Clone())
	vertices.AppendVector3(otherPoint)

	geom := geometry.NewGeometry()
	geom.AddVBO(gls.NewVBO(vertices).AddAttrib(gls.VertexPosition))

	mat := material.NewStandard(&math32.Color{0, 0, 1})
	faceGraphic := graphic.NewLines(geom, mat)
	scene.Add(faceGraphic)
}