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273
void psys_thread_distribute_particle(ParticleThread *thread, struct ParticleData *pa, struct ChildParticle *cpa, int p);
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void psys_thread_create_path(ParticleThread *thread, struct ChildParticle *cpa, ParticleCacheKey *keys, int i);
276
void psys_make_billboard(ParticleBillboardData *bb, float xvec[3], float yvec[3], float zvec[3], float center[3]);
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int psys_count_keyed_targets(struct Object *ob, struct ParticleSystem *psys);
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void psys_get_reactor_target(struct Object *ob, struct ParticleSystem *psys, struct Object **target_ob, struct ParticleSystem **target_psys);