koobas.hobune.stream
Edge of a cube
Given a cube of scale 2,1,1, and without knowing its rotation, i want to find where its right-most point is.
So the distance from the center to its right will be further if its flat, compared to if its standing up.
You could get the mesh vertices, convert to world coordinates and then to the camera local space to find the one with greatest X coordinate - like this:
function FindRightmostPoint(obj: GameObject): Vector3 {
var mesh: Mesh = GetComponent(MeshFilter).mesh;
var verts: Vector3[] = mesh.vertices; // get cube vertices
var xMax: float = Mathf.NegativeInfinity;
var pMax: Vector3;
for (var vert: Vector3 in verts){
// get vertex in world coordinates:
var worldP = obj.transform.TransformPoint(vert);
// convert to camera's local coordinates:
var localP = transform.InverseTransformPoint(worldP);
if (localP.x > xMax){
xMax = localP.x;
pMax = worldP;
}
}
// return world coordinates of rightmost vertex:
return pMax;
}
This function should be placed in a camera script: it finds the rightmost vertex of the object obj from the camera's point of view, and return it in world coordinates.
var localP = transform.InverseTransformPoint(p);
What is p? You dont have another reference to it. Is it worldP?
$$anonymous$$y bad: it should be worldP - answer fixed now.
I'm yoonkuu... Tryin to find a way to contact you. Can you make this for me?? What's your email?? comment below so that i can check your answer? Thanks I have ragespline and all the other stuff, but don't know how to make this kinda object.. Can u tell me your email so that i can send you What i worked on? and you can look up here for the code.. http://forum.unity3d.com/threads/54092-Draw-Polygon Can u implement it for me/?? I really need to make that cube.. Here's a much more depth look at it http://www.youtube.com/watch?v=g7zTm$$anonymous$$vvUpk At some mark, it shows the ragecube thing.
What "right" are you talking about? The positive x axis in worldspace? If so you can simply use:
otherwise be more specific.
I should have said, what appears to be right relative to the camera.
That's something totally different :)
Now it depends on if you use a perspective camera (this is very hard) or an orthographic camera (not that hard).
