How do I implement bullet spread in three-dimensional space?
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How can I shoot a bullet in three-dimensional space in such a way that its path diverges a bit, randomly, from the direction in which the gun is pointed?
I know I have to use the Quaternions, but I don't know how exactly.
Should I convert Quaternion to EulerAngles
Quaternion randomRotation = Random.rotation;
Vector3 inEuler = randomRotation.eulerAngles;
or is there a fairer / nicer way to do it?
unity c#
edited 14 hours ago
Alexandre Vaillancourt♦
12.8k114149
asked 18 hours ago
EIRU.EIRU.
85
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EIRU. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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add a comment |
$begingroup$
How can I shoot a bullet in three-dimensional space in such a way that its path diverges a bit, randomly, from the direction in which the gun is pointed?
I know I have to use the Quaternions, but I don't know how exactly.
Should I convert Quaternion to EulerAngles
Quaternion randomRotation = Random.rotation;
Vector3 inEuler = randomRotation.eulerAngles;
or is there a fairer / nicer way to do it?
unity c#
edited 14 hours ago
Alexandre Vaillancourt♦
12.8k114149
asked 18 hours ago
EIRU.EIRU.
85
New contributor
EIRU. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
$begingroup$
A quick search reveals that "bullet spread" seems to be an invention of video games developers. I formalized what you seemed to be after.
$endgroup$
– Alexandre Vaillancourt♦
14 hours ago
add a comment |
$begingroup$
How can I shoot a bullet in three-dimensional space in such a way that its path diverges a bit, randomly, from the direction in which the gun is pointed?
I know I have to use the Quaternions, but I don't know how exactly.
Should I convert Quaternion to EulerAngles
Quaternion randomRotation = Random.rotation;
Vector3 inEuler = randomRotation.eulerAngles;
or is there a fairer / nicer way to do it?
unity c#
edited 14 hours ago
Alexandre Vaillancourt♦
12.8k114149
asked 18 hours ago
EIRU.EIRU.
85
New contributor
EIRU. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
How can I shoot a bullet in three-dimensional space in such a way that its path diverges a bit, randomly, from the direction in which the gun is pointed?
I know I have to use the Quaternions, but I don't know how exactly.
Should I convert Quaternion to EulerAngles
Quaternion randomRotation = Random.rotation;
Vector3 inEuler = randomRotation.eulerAngles;
or is there a fairer / nicer way to do it?
unity c#
unity c#
edited 14 hours ago
Alexandre Vaillancourt♦
12.8k114149
asked 18 hours ago
EIRU.EIRU.
85
New contributor
EIRU. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 14 hours ago
Alexandre Vaillancourt♦
12.8k114149
asked 18 hours ago
EIRU.EIRU.
85
New contributor
EIRU. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 14 hours ago
Alexandre Vaillancourt♦
12.8k114149
edited 14 hours ago
Alexandre Vaillancourt♦
12.8k114149
edited 14 hours ago
Alexandre Vaillancourt♦
12.8k114149
12.8k114149
asked 18 hours ago
EIRU.EIRU.
85
New contributor
EIRU. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 18 hours ago
EIRU.EIRU.
85
asked 18 hours ago
EIRU.EIRU.
85
85
New contributor
EIRU. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
EIRU. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
EIRU. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$begingroup$
A quick search reveals that "bullet spread" seems to be an invention of video games developers. I formalized what you seemed to be after.
$endgroup$
– Alexandre Vaillancourt♦
14 hours ago
add a comment |
$begingroup$
A quick search reveals that "bullet spread" seems to be an invention of video games developers. I formalized what you seemed to be after.
$endgroup$
– Alexandre Vaillancourt♦
14 hours ago
$begingroup$
A quick search reveals that "bullet spread" seems to be an invention of video games developers. I formalized what you seemed to be after.
$endgroup$
– Alexandre Vaillancourt♦
14 hours ago
$begingroup$
A quick search reveals that "bullet spread" seems to be an invention of video games developers. I formalized what you seemed to be after.
$endgroup$
– Alexandre Vaillancourt♦
14 hours ago
add a comment |
1 Answer
1
active
oldest
votes
$begingroup$
Should I convert Quaternion to EulerAngles
No, going to EulerAngles makes most things worse.
Try something like this instead:
Vector3 PickFiringDirection(Vector3 muzzleForward, float spreadRadius) {
Vector3 candidate = Random.insideUnitSphere * spreadRadius + muzzleForward;
return candidate.normalized;
}
Here we pick a random vector offset to add to the end of our nominal shooting direction, then normalize it so the result is still a unit vector.
There are more ways to pick a random vector in-line with our shooting direction or only slightly deviating from it than there are to pick a highly perpendicular offset, so this will give a distribution where most shots go toward the middle of the cone, and outliers hitting the edges of the cone are more rare.
Your spreadRadius is roughly the radius of the cone 1 unit from the muzzle, or roughly Mathf.Tan(Mathf.Deg2Rad * angle/2f) where angle is the divergence between opposite sides of the cone.
answered 16 hours ago
DMGregory♦DMGregory
64.8k16115180
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
Should I convert Quaternion to EulerAngles
No, going to EulerAngles makes most things worse.
Try something like this instead:
Vector3 PickFiringDirection(Vector3 muzzleForward, float spreadRadius) {
Vector3 candidate = Random.insideUnitSphere * spreadRadius + muzzleForward;
return candidate.normalized;
}
Here we pick a random vector offset to add to the end of our nominal shooting direction, then normalize it so the result is still a unit vector.
There are more ways to pick a random vector in-line with our shooting direction or only slightly deviating from it than there are to pick a highly perpendicular offset, so this will give a distribution where most shots go toward the middle of the cone, and outliers hitting the edges of the cone are more rare.
Your spreadRadius is roughly the radius of the cone 1 unit from the muzzle, or roughly Mathf.Tan(Mathf.Deg2Rad * angle/2f) where angle is the divergence between opposite sides of the cone.
answered 16 hours ago
DMGregory♦DMGregory
64.8k16115180
$endgroup$
add a comment |
$begingroup$
Should I convert Quaternion to EulerAngles
No, going to EulerAngles makes most things worse.
Try something like this instead:
Vector3 PickFiringDirection(Vector3 muzzleForward, float spreadRadius) {
Vector3 candidate = Random.insideUnitSphere * spreadRadius + muzzleForward;
return candidate.normalized;
}
Here we pick a random vector offset to add to the end of our nominal shooting direction, then normalize it so the result is still a unit vector.
There are more ways to pick a random vector in-line with our shooting direction or only slightly deviating from it than there are to pick a highly perpendicular offset, so this will give a distribution where most shots go toward the middle of the cone, and outliers hitting the edges of the cone are more rare.
Your spreadRadius is roughly the radius of the cone 1 unit from the muzzle, or roughly Mathf.Tan(Mathf.Deg2Rad * angle/2f) where angle is the divergence between opposite sides of the cone.
answered 16 hours ago
DMGregory♦DMGregory
64.8k16115180
$endgroup$
add a comment |
$begingroup$
Should I convert Quaternion to EulerAngles
No, going to EulerAngles makes most things worse.
Try something like this instead:
Vector3 PickFiringDirection(Vector3 muzzleForward, float spreadRadius) {
Vector3 candidate = Random.insideUnitSphere * spreadRadius + muzzleForward;
return candidate.normalized;
}
Here we pick a random vector offset to add to the end of our nominal shooting direction, then normalize it so the result is still a unit vector.
There are more ways to pick a random vector in-line with our shooting direction or only slightly deviating from it than there are to pick a highly perpendicular offset, so this will give a distribution where most shots go toward the middle of the cone, and outliers hitting the edges of the cone are more rare.
Your spreadRadius is roughly the radius of the cone 1 unit from the muzzle, or roughly Mathf.Tan(Mathf.Deg2Rad * angle/2f) where angle is the divergence between opposite sides of the cone.
answered 16 hours ago
DMGregory♦DMGregory
64.8k16115180
$endgroup$
Should I convert Quaternion to EulerAngles
No, going to EulerAngles makes most things worse.
Try something like this instead:
Vector3 PickFiringDirection(Vector3 muzzleForward, float spreadRadius) {
Vector3 candidate = Random.insideUnitSphere * spreadRadius + muzzleForward;
return candidate.normalized;
}
Here we pick a random vector offset to add to the end of our nominal shooting direction, then normalize it so the result is still a unit vector.
There are more ways to pick a random vector in-line with our shooting direction or only slightly deviating from it than there are to pick a highly perpendicular offset, so this will give a distribution where most shots go toward the middle of the cone, and outliers hitting the edges of the cone are more rare.
Your spreadRadius is roughly the radius of the cone 1 unit from the muzzle, or roughly Mathf.Tan(Mathf.Deg2Rad * angle/2f) where angle is the divergence between opposite sides of the cone.
answered 16 hours ago
DMGregory♦DMGregory
64.8k16115180
answered 16 hours ago
DMGregory♦DMGregory
64.8k16115180
answered 16 hours ago
DMGregory♦DMGregory
64.8k16115180
answered 16 hours ago
DMGregory♦DMGregory
64.8k16115180
64.8k16115180
add a comment |
add a comment |
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$begingroup$
A quick search reveals that "bullet spread" seems to be an invention of video games developers. I formalized what you seemed to be after.
$endgroup$
– Alexandre Vaillancourt♦
14 hours ago