Is there a simple way in python to rotate/position a camera so that a specific point (X,Y,Z) is in the middle of the camera viewfinder in Blender 2.8?
- Get the camera-object direction as a vector by subtracting the cameras location from the objects location:
direction
- Convert this vector to a look at quaternion with the vectors
to_track_quat('Z', 'Y')
function. This function returns a quaternionrot
which points its Z in the direction of the direction vector and its Y in the direction of the global Y.
Convertrot
to a 4x4 matrix. - Convert the cameras location into a Translation Matrix and store it in
loc
. - Compose the new camera matrix by matrix-multiplying the
loc
matrix and therot
matrix and assign it to the cameramatrix_world
.
import bpy
import mathutils
cam = bpy.context.scene.camera
object = bpy.context.active_object
direction = cam.location - object.location
rot = direction.to_track_quat('Z', 'Y').to_matrix().to_4x4()
loc = mathutils.Matrix.Translation(cam.location)
cam.matrix_world = loc @ rot
-
$\begingroup$ thanks for the explanation. Would you be able to comment on this post: blender.stackexchange.com/questions/151034/… $\endgroup$ – vndep Sep 8 '19 at 15:03