forked from bartvdbraak/blender
Smoke:
* Totally new try to get cache running * Didn't try "bake" and such things yet Hint * Very verbose yet * Please do only test new blend files, not old ones! Please give me feedback on my blog about the old crashers.
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cf20399993
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9f5e42ff76
@ -182,6 +182,9 @@ void FLUID_3D::initBlenderRNA(float *alpha, float *beta)
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//////////////////////////////////////////////////////////////////////
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void FLUID_3D::step()
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{
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// addSmokeTestCase(_density, _res);
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// addSmokeTestCase(_heat, _res);
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// wipe forces
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for (int i = 0; i < _totalCells; i++)
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{
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@ -47,7 +47,7 @@ class FLUID_3D
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void initVectorNoise(int amplify);
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void addSmokeColumn();
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static void addSmokeTestCase(float* field, Vec3Int res, float value);
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static void addSmokeTestCase(float* field, Vec3Int res);
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void step();
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void addObstacle(OBSTACLE* obstacle);
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@ -44,8 +44,8 @@ void FLUID_3D::addSmokeColumn() {
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// generic static version, so that it can be applied to the
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// WTURBULENCE grid as well
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//////////////////////////////////////////////////////////////////////
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/*
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void FLUID_3D::addSmokeTestCase(float* field, Vec3Int res, float value)
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void FLUID_3D::addSmokeTestCase(float* field, Vec3Int res)
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{
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const int slabSize = res[0]*res[1]; int maxRes = (int)MAX3V(res);
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float dx = 1.0f / (float)maxRes;
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@ -57,22 +57,22 @@ void FLUID_3D::addSmokeTestCase(float* field, Vec3Int res, float value)
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float heighMin = 0.05;
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float heighMax = 0.10;
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for (int y = 0; y < res[1]; y++)
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for (int z = (int)(heighMin*res[2]); z <= (int)(heighMax * res[1]); z++)
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for (int y = 0; y < res[2]; y++)
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for (int z = (int)(heighMin*res[2]); z <= (int)(heighMax * res[2]); z++)
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for (int x = 0; x < res[0]; x++)
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{
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float xLength = x * dx - xTotal * 0.4f;
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float yLength = y * dx - zTotal * 0.5f;
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float yLength = y * dx - yTotal * 0.5f;
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float radius = sqrtf(xLength * xLength + yLength * yLength);
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if (radius < 0.075f * xTotal)
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{
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int index = x + y * res[0] + z * slabSize;
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field[index] = value;
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field[index] = 1.0f;
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}
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}
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}
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*/
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//////////////////////////////////////////////////////////////////////
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// set x direction to Neumann boundary conditions
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@ -295,12 +295,10 @@ void FLUID_3D::advectFieldSemiLagrange(const float dt, const float* velx, const
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const int xres = res[0];
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const int yres = res[1];
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const int zres = res[2];
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static int hits = 0;
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static int total = 0;
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const int slabSize = res[0] * res[1];
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// scale dt up to grid resolution
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#if PARALLEL==1 && !_WIN32
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#if PARALLEL==1
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#pragma omp parallel
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#pragma omp for schedule(static)
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#endif
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@ -81,7 +81,6 @@ extern "C" void smoke_step(FLUID_3D *fluid, size_t framenr)
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extern "C" void smoke_turbulence_step(WTURBULENCE *wt, FLUID_3D *fluid)
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{
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if(wt)
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wt->stepTurbulenceFull(fluid->_dt/fluid->_dx, fluid->_xVelocity, fluid->_yVelocity, fluid->_zVelocity, fluid->_obstacles);
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}
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@ -167,6 +167,8 @@ int smokeModifier_init (SmokeModifierData *smd, Object *ob, Scene *scene, Derive
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// calc other res with max_res provided
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VECSUB(size, max, min);
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printf("size: %f, %f, %f\n", size[0], size[1], size[2]);
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// prevent crash when initializing a plane as domain
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if((size[0] < FLT_EPSILON) || (size[1] < FLT_EPSILON) || (size[2] < FLT_EPSILON))
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return 0;
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@ -210,6 +212,8 @@ int smokeModifier_init (SmokeModifierData *smd, Object *ob, Scene *scene, Derive
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}
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}
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printf("smd->domain->dx: %f\n", smd->domain->dx);
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// TODO: put in failsafe if res<=0 - dg
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// printf("res[0]: %d, res[1]: %d, res[2]: %d\n", smd->domain->res[0], smd->domain->res[1], smd->domain->res[2]);
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@ -595,11 +599,6 @@ void smokeModifier_reset_turbulence(struct SmokeModifierData *smd)
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smoke_turbulence_free(smd->domain->wt);
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smd->domain->wt = NULL;
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}
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smd->domain->point_cache[1]->flag &= ~PTCACHE_SIMULATION_VALID;
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smd->domain->point_cache[1]->flag |= PTCACHE_OUTDATED;
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smd->domain->point_cache[1]->simframe= 0;
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smd->domain->point_cache[1]->last_exact= 0;
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}
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void smokeModifier_reset(struct SmokeModifierData *smd)
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@ -618,16 +617,14 @@ void smokeModifier_reset(struct SmokeModifierData *smd)
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smd->domain->fluid = NULL;
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}
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smd->domain->point_cache[0]->flag &= ~PTCACHE_SIMULATION_VALID;
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smd->domain->point_cache[0]->flag |= PTCACHE_OUTDATED;
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smd->domain->point_cache[0]->simframe= 0;
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smd->domain->point_cache[0]->last_exact= 0;
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smd->domain->point_cache[1]->flag |= PTCACHE_OUTDATED;
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smokeModifier_reset_turbulence(smd);
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smd->time = -1;
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// printf("reset domain end\n");
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printf("reset domain end\n");
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}
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else if(smd->flow)
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{
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@ -1102,153 +1099,76 @@ void smokeModifier_do(SmokeModifierData *smd, Scene *scene, Object *ob, DerivedM
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}
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else if(smd->type & MOD_SMOKE_TYPE_DOMAIN)
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{
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SmokeDomainSettings *sds = smd->domain;
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float light[3];
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PointCache *cache = NULL;
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PTCacheID pid;
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PointCache *cache_wt = NULL;
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PTCacheID pid_wt;
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int startframe, endframe, framenr;
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float timescale;
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int cache_result = 0, cache_result_wt = 0;
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int startframe, endframe, framenr, badloading = 0;
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SmokeDomainSettings *sds = smd->domain;
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float light[3];
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framenr = scene->r.cfra;
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cache = sds->point_cache[0];
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printf("time: %d\n", scene->r.cfra);
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if(framenr == smd->time)
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return;
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cache = sds->point_cache[0];
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BKE_ptcache_id_from_smoke(&pid, ob, smd);
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BKE_ptcache_id_time(&pid, scene, framenr, &startframe, &endframe, ×cale);
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cache_wt = sds->point_cache[1];
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BKE_ptcache_id_from_smoke_turbulence(&pid_wt, ob, smd);
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/* handle continuous simulation with the play button */
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if(BKE_ptcache_get_continue_physics())
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{
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// TODO
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return;
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}
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if(framenr < startframe)
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{
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cache->flag &= ~PTCACHE_SIMULATION_VALID;
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cache->simframe= 0;
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cache->last_exact= 0;
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cache_wt->flag &= ~PTCACHE_SIMULATION_VALID;
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cache_wt->simframe= 0;
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cache_wt->last_exact= 0;
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// we got back in time, reset smoke in this case (TODO: use cache later)
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// smd->time = scene->r.cfra;
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// smokeModifier_reset(smd);
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return;
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}
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else if(framenr > endframe)
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{
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framenr = endframe;
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// we load last valid frame here
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// and don't update the smd->time variable later
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badloading = 1;
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}
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if(!(cache->flag & PTCACHE_SIMULATION_VALID))
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{
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BKE_ptcache_id_reset(scene, &pid, PTCACHE_RESET_OUTDATED);
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}
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if(sds->wt && !(cache_wt->flag & PTCACHE_SIMULATION_VALID))
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{
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BKE_ptcache_id_reset(scene, &pid_wt, PTCACHE_RESET_OUTDATED);
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}
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if(smd->time == -1 && framenr!= startframe)
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return;
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if(!smokeModifier_init(smd, ob, scene, dm))
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if(framenr > endframe)
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return;
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if(!smd->domain->fluid)
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{
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BKE_ptcache_id_reset(scene, &pid, PTCACHE_RESET_OUTDATED);
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BKE_ptcache_id_reset(scene, &pid_wt, PTCACHE_RESET_OUTDATED);
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}
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if(!smokeModifier_init(smd, ob, scene, dm))
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{
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printf("bad smokeModifier_init\n");
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return;
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}
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/* try to read from cache */
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cache_result = BKE_ptcache_read_cache(&pid, (float)framenr, scene->r.frs_sec);
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// printf("cache_result: %d\n", cache_result);
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printf("cache_result: %d\n", cache_result);
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if(cache_result == PTCACHE_READ_EXACT)
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{
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SmokeDomainSettings *sds = smd->domain;
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cache->flag |= PTCACHE_SIMULATION_VALID;
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cache->simframe= framenr;
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sds->v3dnum = framenr;
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if(!badloading)
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smd->time = scene->r.cfra;
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// check for wt cache
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if(sds->wt)
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{
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cache_result_wt = BKE_ptcache_read_cache(&pid_wt, (float)framenr, scene->r.frs_sec);
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// printf("cache_result_wt: %d\n", cache_result_wt);
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// error handling
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if(cache_result_wt == PTCACHE_READ_EXACT)
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{
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cache_wt->flag |= PTCACHE_SIMULATION_VALID;
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cache_wt->simframe= framenr;
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}
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else if(cache_result_wt==PTCACHE_READ_OLD)
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{
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BKE_ptcache_id_reset(scene, &pid_wt, PTCACHE_RESET_FREE);
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cache_wt->flag |= PTCACHE_SIMULATION_VALID;
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}
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else if(ob->id.lib || (cache_wt->flag & PTCACHE_BAKED))
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{
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// if baked and nothing in cache, do nothing
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cache_wt->flag &= ~PTCACHE_SIMULATION_VALID;
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cache_wt->simframe= 0;
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cache_wt->last_exact= 0;
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}
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}
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// printf("PTCACHE_READ_EXACT\n");
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return;
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}
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else if(cache_result==PTCACHE_READ_OLD)
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{
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BKE_ptcache_id_reset(scene, &pid, PTCACHE_RESET_FREE);
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cache->flag |= PTCACHE_SIMULATION_VALID;
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BKE_ptcache_id_reset(scene, &pid_wt, PTCACHE_RESET_FREE);
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cache_wt->flag |= PTCACHE_SIMULATION_VALID;
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}
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else if(ob->id.lib || (cache->flag & PTCACHE_BAKED))
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{
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// if baked and nothing in cache, do nothing
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cache->flag &= ~PTCACHE_SIMULATION_VALID;
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cache->simframe= 0;
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cache->last_exact= 0;
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tstart();
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cache_wt->flag &= ~PTCACHE_SIMULATION_VALID;
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cache_wt->simframe= 0;
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cache_wt->last_exact= 0;
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smoke_calc_domain(scene, ob, smd);
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// printf("PTCACHE_BAKED\n");
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return;
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}
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/*
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else if((cache_result==0) && ((startframe!=framenr) && !(cache->flag & PTCACHE_SIMULATION_VALID || (framenr == smd->time))))
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{
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cache->flag &= ~PTCACHE_SIMULATION_VALID;
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cache->simframe= 0;
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cache->last_exact= 0;
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return;
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}*/
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// printf("framenr: %d, time: %f\n", framenr, smd->time);
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// set new time
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smd->time = scene->r.cfra;
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/* do simulation */
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@ -1256,52 +1176,18 @@ void smokeModifier_do(SmokeModifierData *smd, Scene *scene, Object *ob, DerivedM
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cache->flag |= PTCACHE_SIMULATION_VALID;
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cache->simframe= framenr;
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if(sds->wt)
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{
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cache_wt->flag |= PTCACHE_SIMULATION_VALID;
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cache_wt->simframe= framenr;
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}
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tstart();
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if(sds->flags & MOD_SMOKE_DISSOLVE)
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{
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smoke_dissolve(sds->fluid, sds->diss_speed, sds->flags & MOD_SMOKE_DISSOLVE_LOG);
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}
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smoke_calc_domain(scene, ob, smd);
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// set new time
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smd->time = scene->r.cfra;
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// frame 1 is start, don't simulate anything
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if(smd->time == 1)
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{
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// set new time
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smd->time = scene->r.cfra;
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BKE_ptcache_write_cache(&pid, framenr);
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if(sds->wt)
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BKE_ptcache_write_cache(&pid_wt, framenr);
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if(get_lamp(scene, light))
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smoke_calc_transparency(sds->shadow, smoke_get_density(sds->fluid), sds->p0, sds->p1, sds->res, sds->dx, light, calc_voxel_transp, -7.0*sds->dx);
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// printf("smd->time: %f\n", smd->time);
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return;
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}
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// simulate the actual smoke (c++ code in intern/smoke)
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if(framenr!=startframe)
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smoke_step(sds->fluid, smd->time);
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BKE_ptcache_write_cache(&pid, framenr);
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if(sds->wt)
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{
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if(sds->flags & MOD_SMOKE_DISSOLVE)
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smoke_dissolve_wavelet(sds->wt, sds->diss_speed, sds->flags & MOD_SMOKE_DISSOLVE_LOG);
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if(framenr!=startframe)
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smoke_turbulence_step(sds->wt, sds->fluid);
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cache_wt->flag |= PTCACHE_SIMULATION_VALID;
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cache_wt->simframe= framenr;
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BKE_ptcache_write_cache(&pid_wt, framenr);
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}
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@ -1309,7 +1195,7 @@ void smokeModifier_do(SmokeModifierData *smd, Scene *scene, Object *ob, DerivedM
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smoke_calc_transparency(sds->shadow, smoke_get_density(sds->fluid), sds->p0, sds->p1, sds->res, sds->dx, light, calc_voxel_transp, -7.0*sds->dx);
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tend();
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// printf ( "Frame: %d, Time: %f\n", (int)smd->time, ( float ) tval() );
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printf ( "Frame: %d, Time: %f\n", (int)smd->time, ( float ) tval() );
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}
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}
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