小发明OpenTK(或OpenGL)

Gizmo OpenTK (or OpenGL)

本文关键字：OpenGL OpenTK 小发明      更新时间：2023-10-16

这里有人写的代码移动对象使用Gizmo?我是说通过鼠标平移或旋转立方体?例如在3ds max或blender编辑器中。我不明白如何使用3d鼠标位置。

我做到了。我的算法:

Vector2 mouseDelta;//set this for your own
Vector3 objectPosition;//and this
Vector3 objectUpDir;//and this
//Here
Vector3 MoveY(){
Vector2 center = worldToScreen(objectPosition);//get center to screen
Vector2 up = worldToScreen(objectPosition+objectUpDir);//get up to screen
float ang = Vector2.CalculateAngle(mouseDelta,up-center);//get angle from up && mouse delta
ang = MathHelper.RadiansToDegrees(ang);//get degreees
ang = ang/90-1;//here :if perpendicular, then ang = 0
return objPosition + objUpDir * (ang/5);//5 - your speed
}
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