diff options
Diffstat (limited to 'source/blender/blenkernel/BKE_particle.h')
| -rw-r--r-- | source/blender/blenkernel/BKE_particle.h | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/source/blender/blenkernel/BKE_particle.h b/source/blender/blenkernel/BKE_particle.h index bdaffef6818..6c207675cb1 100644 --- a/source/blender/blenkernel/BKE_particle.h +++ b/source/blender/blenkernel/BKE_particle.h @@ -20,7 +20,9 @@ * * The Original Code is: all of this file. * - * Contributor(s): none yet. + * Adaptive time step + * Classical SPH + * Copyright 2011-2012 AutoCRC * * ***** END GPL LICENSE BLOCK ***** */ @@ -58,6 +60,7 @@ struct RNG; struct SurfaceModifierData; struct BVHTreeRay; struct BVHTreeRayHit; +struct EdgeHash; #define PARTICLE_P ParticleData * pa; int p #define LOOP_PARTICLES for (p = 0, pa = psys->particles; p < psys->totpart; p++, pa++) @@ -85,6 +88,24 @@ typedef struct ParticleSimulationData { float courant_num; } ParticleSimulationData; +typedef struct SPHData { + ParticleSystem *psys[10]; + ParticleData *pa; + float mass; + struct EdgeHash *eh; + float *gravity; + float hfac; + /* Average distance to neighbours (other particles in the support domain), + * for calculating the Courant number (adaptive time step). */ + int pass; + float element_size; + float flow[3]; + + /* Integrator callbacks. This allows different SPH implementations. */ + void (*force_cb) (void *sphdata_v, ParticleKey *state, float *force, float *impulse); + void (*density_cb) (void *rangedata_v, int index, float squared_dist); +} SPHData; + typedef struct ParticleTexture { float ivel; /* used in reset */ float time, life, exist, size; /* used in init */ @@ -199,7 +220,10 @@ typedef struct ParticleCollision { ParticleCollisionElement pce; - float total_time, inv_timestep; + /* total_time is the amount of time in this subframe + * inv_total_time is the opposite + * inv_timestep is the inverse of the amount of time in this frame */ + float total_time, inv_total_time, inv_timestep; float radius; float co1[3], co2[3]; @@ -283,6 +307,10 @@ float psys_get_child_size(struct ParticleSystem *psys, struct ChildParticle *cpa void psys_get_particle_on_path(struct ParticleSimulationData *sim, int pa_num, struct ParticleKey *state, int vel); int psys_get_particle_state(struct ParticleSimulationData *sim, int p, struct ParticleKey *state, int always); +void psys_sph_init(struct ParticleSimulationData *sim, struct SPHData *sphdata); +void psys_sph_finalise(struct SPHData *sphdata); +void psys_sph_density(struct BVHTree *tree, struct SPHData *data, float co[3], float vars[2]); + /* for anim.c */ void psys_get_dupli_texture(struct ParticleSystem *psys, struct ParticleSettings *part, struct ParticleSystemModifierData *psmd, struct ParticleData *pa, struct ChildParticle *cpa, |