particle_private.h

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/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The Original Code is Copyright (C) 2018 Blender Foundation.
 * All rights reserved.
 */
 
#pragma once
 
#ifdef __cplusplus
extern "C" {
#endif
 
struct CurveMapping;
 
typedef struct ParticleChildModifierContext {
  ParticleThreadContext *thread_ctx;
  ParticleSimulationData *sim;
  ParticleTexture *ptex;
  ChildParticle *cpa;
  const float *par_co;   /* float3 */
  const float *par_vel;  /* float3 */
  const float *par_rot;  /* float4 */
  const float *par_orco; /* float3 */
  const float *orco;     /* float3 */
  ParticleCacheKey *parent_keys;
} ParticleChildModifierContext;
 
void do_kink(ParticleKey *state,
             const float par_co[3],
             const float par_vel[3],
             const float par_rot[4],
             float time,
             float freq,
             float shape,
             float amplitude,
             float flat,
             short type,
             short axis,
             float obmat[4][4],
             int smooth_start);
float do_clump(ParticleKey *state,
               const float par_co[3],
               float time,
               const float orco_offset[3],
               float clumpfac,
               float clumppow,
               float pa_clump,
               bool use_clump_noise,
               float clump_noise_size,
               struct CurveMapping *clumpcurve);
void do_child_modifiers(const ParticleChildModifierContext *modifier_ctx,
                        float mat[4][4],
                        ParticleKey *state,
                        float t);
 
#ifdef __cplusplus
}
#endif