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CPUParticles2D - Add ability to follow physics interpolated target

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Allows a non-interpolated particle system to closely follow an interpolated target without tracking ahead of the target, by performing fixed timestep interpolation on the particle system global transform, and using this for emission.

Co-authored-by: lawnjelly <lawnjelly@gmail.com>
This commit is contained in:
Ricardo Buring 2025-01-22 13:24:55 +01:00
parent a7146ef807
commit 56fc0fd175
12 changed files with 157 additions and 34 deletions
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doc/classes/CPUParticles2D.xml
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@ -241,6 +241,7 @@
<member name="particle_flag_align_y" type="bool" setter="set_particle_flag" getter="get_particle_flag" default="false">
Align Y axis of particle with the direction of its velocity.
</member>
<member name="physics_interpolation_mode" type="int" setter="set_physics_interpolation_mode" getter="get_physics_interpolation_mode" overrides="Node" enum="Node.PhysicsInterpolationMode" default="2" />
<member name="preprocess" type="float" setter="set_pre_process_time" getter="get_pre_process_time" default="0.0">
Particle system starts as if it had already run for this many seconds.
</member>