The rotation of projectiles (arrows, snow balls, tridents, ...) is incorrect, its vector has negated x and y values. As you can see in the attached images, the rotation arrows/tridents have does not match the model/travel direction. The model represents the correct angle for the shot. The facing direction should match the direction that the projectile would travel in.
Steps to reproduce:
Enable hitboxes. (F3+B)
Spawn a projectile of any kind (eg by throw tridents or shoot arrows).
Inspect the facing line of the projectile.
Expected result:
The facing line follows the direction of the projectile, matching the model.
Actual result:
The facing line does not follow the direction the projectile moves/is visually facing.
This screenshot was taken while looking down from above. The x axis is vertical and goes upwards, the z axis is horizontal and goes to the right.
[media]Linked issues
is duplicated by 14
MC-50450
Teleporting to arrow - wrong direction
Resolved
MC-74632
Projectile facing doesn't match direction of movement
Resolved
MC-113892
The orientation of arrows is opposite to its sight direction on the x-axis and y-axis
Resolved
MC-130024
Snowballs, arrows and other projectiles don't "face" the direction they're flying in
Resolved
MC-145515
Arrow's rotational coordinates do not make sense.
Resolved
relates to 2
Attachments
Comments 22
The issue is duplicated by MC-182313.
This issue also affects bedrock editions, I have created MCPE-168108 to describe the issue there.
Requesting ownership as the current reporter has done nothing since 2019; additionally, if granted, then I'll keep track of all rotation vector issues on both MC and MCPE. ^^
Can confirm for 1.15.2 and 20w18a.