func (me *Controller) applyTranslation() {
if me.autoUpdate {
var mlook, mtrans unum.Mat4
mlook.Orient(&me.dir, &me.UpAxis)
mtrans.Translation(me.Pos.Negated())
me.thrApp.mat.SetFromMult4(&mlook, &mtrans)
}
}
// Updates the internal 4x4 transformation matrix for all transformations of the specified
// node and child-nodes. It is only this matrix that is used by the rendering runtime.
func (me *Scene) ApplyNodeTransforms(nodeID int) {
if me.allNodes.IsOk(nodeID) {
// this node
var matParent, matTrans, matScale, matRotX, matRotY, matRotZ unum.Mat4
matScale.Scaling(&me.allNodes[nodeID].Transform.Scale)
matTrans.Translation(&me.allNodes[nodeID].Transform.Pos)
matRotX.RotationX(me.allNodes[nodeID].Transform.Rot.X)
matRotY.RotationY(me.allNodes[nodeID].Transform.Rot.Y)
matRotZ.RotationZ(me.allNodes[nodeID].Transform.Rot.Z)
if me.allNodes[nodeID].parentID < 0 {
matParent.Identity()
} else {
matParent.CopyFrom(&me.allNodes[me.allNodes[nodeID].parentID].Transform.thrApp.matModelView)
}
me.allNodes[nodeID].Transform.thrApp.matModelView.SetFromMultN(&matParent, &matTrans /*me.Other,*/, &matScale, &matRotX, &matRotY, &matRotZ)
// child-nodes
for i := 0; i < len(me.allNodes[nodeID].childNodeIDs); i++ {
me.ApplyNodeTransforms(me.allNodes[nodeID].childNodeIDs[i])
}
me.allNodes[nodeID].thrApp.bounding.full.Clear()
me.allNodes[nodeID].thrApp.bounding.self.Clear()
if Core.Libs.Meshes.IsOk(me.allNodes[nodeID].Render.meshID) {
me.applyBounds(nodeID, &Core.Libs.Meshes[me.allNodes[nodeID].Render.meshID].raw.bounding)
} else {
// this node has no geometry of its own but its child-nodes might
me.applyBounds(nodeID, nil)
}
}
}