7/30/2023 0 Comments Unity forward vector 2d not right![]() ![]() If i change the rotation of both x AND y, i have no idea whats happening, but its probably does some kind of trig math that i learned at school but forgot.Įvery GameObject has a Transform. If i were to change rotation.x then forward.z changes by cos(rotation.x) and forward.y changes by sin(-rotation.x) If i were to change rotation.y then forward.z changes by cos(rotation.y) and forward.x changes by sin(rotation.y) which i find weird.)ĮDIT2: Whoops, i feel dumb for not recognizing it. If an object is facing about 45 degrees in between x and z.įorward.x, and forward.z are around 0.7071068, 0.7071068 (for some reason, the half way point of a rotation is not 0.5, but 0.707. What would this magnitude (some number in this case) represent?ĮDIT: Nevermind, i found the answer to this by creating a script that has variablesįor people that want to know what I found.įorward.x, y, z ranges from 0-1 where if an object faces one axis, the transform.forward of that corresponding axis would be 1 and every other axis would be 0. However, this vector should have a magnitude right? I am wondering what that magnitude represents.įor example, if an object is facing in the z-direction I understand that transform.forward is a vector now and this vector points in the same direction as the "front" of an object in the scene. When we add the magnitude of the speed to its direction, we obtain the velocity, a vector representation that includes both information on the movement of an object: its speed and direction." ![]() ![]() So while having the magnitude is useful, knowing the direction is even more useful to determine where this object is going. For example, an object could be going a 2 meters per second towards the positive or negative x-axis. If you were, let’s say, observing a moving object, determining the value of the speed would be great using a float (for example 2 meters per second) however, this quantity, often referred as a magnitude, would not provide any information on the direction of the object (where we it is going). "So far, even if you are not used to vectors, you may already have used variables such as float, int, or boolean to define a quantity. This is an excerpt from my blog that should summarize it all: Both can provide important information for the movement of an object. So the magnitude is a scalar, it has no direction while the vector has a direction. You may also have herad about scalars and vectors. So you can exert a force of magnitude xx in a particular direction. The same applies to forces, a force has a direction, but also a magnitude (value). ![]() So for example, the car can be heading west (direction), with a speed of 20 kilometers per hour (magnitude). The velocity vector give you the direction of the object, while the magnitude, usually referred as speed, will gibe you the value. For example if you think about velocity/speed. I'm happy to help.Ĭlick to expand.The magnitude is the size or length of the vector. If this is still unclear, just give me a shout. If you need to know more about vectors, I have prepared a tutorial here that should get you started fast with these concepts. Which means that the object will translate (or move linearly) forward based on time. Transform.Translate( Vector3.forward * ltaTime) On this page, the example shows the following code In the example provided on the page you mentioned, transform.forward is used to compute the angle between the direction of the object and another object however, it can be used for more basic things such as moving your character forward based on time, using ,for example, anslate (See: ). So, if you were to look at the x,y and z coordinates of this vector, this can be obtained using, , and. Sometimes, it is also useful to obtain the direction of your object (to see where its heading or to perform forward movement) and Transform.forward will provide you with this, as it is a vector that points forward for the object selected.Īs you may already know, each vector has a x,y, and z coordinate in space. This transform will store information on the position, scale, or rotation of your object. Yes, the documentation may be quite confusing at times, especially when you are starting-up with Scripting, so I will try to explain this to the best that I can.įor a given object, you can have a transform. ![]()
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