Hi i want to create a lot of tree using particle . I create a master tree where it's just a simple plane and i used a tree image (with alpha channel) as the material. Then i create another plane (as ground) and apply particle system modifier and select my master tree as the instance object. Now i want to contol the rotation of the instance to always face the current camera position. is it possible ?
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$\begingroup$ did you try with Drivers? $\endgroup$– SanbaldoApr 17, 2020 at 17:06
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$\begingroup$ Look into animation nodes for more control instead of the current particle system $\endgroup$– Bert VdBApr 17, 2020 at 22:04
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1 Answer
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Thanks CG Boost: https://www.youtube.com/watch?v=aLVodLos41Q
Here is a summary:
- Create an Empty that you parent to your camera but placed far away behind it on the local Z axis. This will be used to lock the particle source orientation that will "look" at that general direction
- place the source particle object somewhere in the middle of where most particles will be (in the middle of the forest)
- Add a
Track toConstraint to the source particle object, use the empty behind the camera as target - Add a
Limit Rotationconstraint to the same object to keep it strait.
This way, generated particles should all face the general direction of the camera as long as the empty is far enough behind it.
Also if you have trouble with your source object in the middle of your scene, just put it on a difference scene along with a linked duplicate of the camera.
