Commit: c2b0d8b6d6c771da70b8fd9da5ac9cc53d04184d
Author: Sergey Sharybin
Date:   Mon Dec 10 15:09:46 2018 +0100
Branches: blender2.8
https://developer.blender.org/rBc2b0d8b6d6c771da70b8fd9da5ac9cc53d04184d

Fix T57633: Particle texture update problem

Textures are now hooked up to the RESET operation of particle
settings, which ensures particles being re-distributed when
texture is changed.

This is limited to a direct user modifications, which matches
old behavior in 2.79.

===================================================================

M       source/blender/blenkernel/BKE_particle.h
M       source/blender/blenkernel/intern/particle_system.c
M       source/blender/depsgraph/intern/builder/deg_builder_nodes.cc
M       source/blender/depsgraph/intern/builder/deg_builder_nodes.h
M       source/blender/depsgraph/intern/builder/deg_builder_relations.cc
M       source/blender/depsgraph/intern/builder/deg_builder_relations.h
M       source/blender/depsgraph/intern/debug/deg_debug_relations_graphviz.cc
M       source/blender/depsgraph/intern/depsgraph_tag.cc
M       source/blender/depsgraph/intern/depsgraph_type_defines.cc
M       source/blender/depsgraph/intern/depsgraph_types.h
M       source/blender/depsgraph/intern/nodes/deg_node_component.cc
M       source/blender/depsgraph/intern/nodes/deg_node_component.h
M       source/blender/gpu/intern/gpu_shader.c

===================================================================

diff --git a/source/blender/blenkernel/BKE_particle.h 
b/source/blender/blenkernel/BKE_particle.h
index aa00024b27b..cf123f78ae0 100644
--- a/source/blender/blenkernel/BKE_particle.h
+++ b/source/blender/blenkernel/BKE_particle.h
@@ -464,9 +464,12 @@ float psys_get_current_display_percentage(struct 
ParticleSystem *psys, const boo
 
 struct Depsgraph;
 
+void BKE_particle_settings_eval_reset(
+        struct Depsgraph *depsgraph,
+        struct ParticleSettings *particle_settings);
+
 void BKE_particle_system_eval_init(struct Depsgraph *depsgraph,
-                                   struct Scene *scene,
-                                   struct Object *ob);
+                                   struct Object *object);
 
 #endif
 
diff --git a/source/blender/blenkernel/intern/particle_system.c 
b/source/blender/blenkernel/intern/particle_system.c
index 2cb9dd0e6f7..8d09215c564 100644
--- a/source/blender/blenkernel/intern/particle_system.c
+++ b/source/blender/blenkernel/intern/particle_system.c
@@ -4427,16 +4427,25 @@ void BKE_particlesystem_id_loop(ParticleSystem *psys, 
ParticleSystemIDFunc func,
 
 /* **** Depsgraph evaluation **** */
 
+void BKE_particle_settings_eval_reset(
+        struct Depsgraph *depsgraph,
+        ParticleSettings *particle_settings)
+{
+       DEG_debug_print_eval(depsgraph,
+                            __func__,
+                            particle_settings->id.name,
+                            particle_settings);
+       particle_settings->id.recalc |= ID_RECALC_PSYS_RESET;
+}
+
 void BKE_particle_system_eval_init(struct Depsgraph *depsgraph,
-                                   Scene *scene,
-                                   Object *ob)
+                                   Object *object)
 {
-       DEG_debug_print_eval(depsgraph, __func__, ob->id.name, ob);
-       for (ParticleSystem *psys = ob->particlesystem.first;
+       DEG_debug_print_eval(depsgraph, __func__, object->id.name, object);
+       for (ParticleSystem *psys = object->particlesystem.first;
             psys != NULL;
             psys = psys->next)
        {
                psys->recalc |= (psys->part->id.recalc & ID_RECALC_PSYS_ALL);
        }
-       BKE_ptcache_object_reset(scene, ob, PTCACHE_RESET_DEPSGRAPH);
 }
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc 
b/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc
index 3fcaa12f036..d65acbcad1d 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc
+++ b/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc
@@ -640,7 +640,7 @@ void DepsgraphNodeBuilder::build_object(int base_index,
        build_animdata(&object->id);
        /* Particle systems. */
        if (object->particlesystem.first != NULL) {
-               build_particles(object, is_visible);
+               build_particle_systems(object, is_visible);
        }
        /* Proxy object to copy from. */
        if (object->proxy_from != NULL) {
@@ -1109,8 +1109,8 @@ void DepsgraphNodeBuilder::build_rigidbody(Scene *scene)
        }
 }
 
-void DepsgraphNodeBuilder::build_particles(Object *object,
-                                           bool is_object_visible)
+void DepsgraphNodeBuilder::build_particle_systems(Object *object,
+                                                  bool is_object_visible)
 {
        /**
         * Particle Systems Nodes
@@ -1128,25 +1128,22 @@ void DepsgraphNodeBuilder::build_particles(Object 
*object,
         */
        /* Component for all particle systems. */
        ComponentDepsNode *psys_comp =
-               add_component_node(&object->id, DEG_NODE_TYPE_EVAL_PARTICLES);
+               add_component_node(&object->id, DEG_NODE_TYPE_PARTICLE_SYSTEM);
 
-       /* TODO(sergey): Need to get COW of PSYS. */
-       Scene *scene_cow = get_cow_datablock(scene_);
        Object *ob_cow = get_cow_datablock(object);
-
-       add_operation_node(psys_comp,
-                          function_bind(BKE_particle_system_eval_init,
-                                        _1,
-                                        scene_cow,
-                                        ob_cow),
-                          DEG_OPCODE_PARTICLE_SYSTEM_EVAL_INIT);
+       OperationDepsNode *op_node;
+       op_node = add_operation_node(psys_comp,
+                                    
function_bind(BKE_particle_system_eval_init,
+                                                  _1,
+                                                  ob_cow),
+                                    DEG_OPCODE_PARTICLE_SYSTEM_INIT);
+       op_node->set_as_entry();
        /* Build all particle systems. */
        LISTBASE_FOREACH (ParticleSystem *, psys, &object->particlesystem) {
                ParticleSettings *part = psys->part;
                /* Build particle settings operations.
                 *
-                * NOTE: The call itself ensures settings are only build once.
-                */
+                * NOTE: The call itself ensures settings are only build once.  
*/
                build_particle_settings(part);
                /* Particle system evaluation. */
                add_operation_node(psys_comp,
@@ -1170,19 +1167,49 @@ void DepsgraphNodeBuilder::build_particles(Object 
*object,
                                break;
                }
        }
+       op_node = add_operation_node(psys_comp,
+                                    NULL,
+                                    DEG_OPCODE_PARTICLE_SYSTEM_DONE);
+       op_node->set_as_exit();
 }
 
-void DepsgraphNodeBuilder::build_particle_settings(ParticleSettings *part) {
-       if (built_map_.checkIsBuiltAndTag(part)) {
+void DepsgraphNodeBuilder::build_particle_settings(
+        ParticleSettings *particle_settings) {
+       if (built_map_.checkIsBuiltAndTag(particle_settings)) {
                return;
        }
+       /* Make sure we've got proper copied ID pointer. */
+       add_id_node(&particle_settings->id);
+       ParticleSettings *particle_settings_cow =
+               get_cow_datablock(particle_settings);
        /* Animation data. */
-       build_animdata(&part->id);
+       build_animdata(&particle_settings->id);
        /* Parameters change. */
-       add_operation_node(&part->id,
-                          DEG_NODE_TYPE_PARAMETERS,
-                          NULL,
-                          DEG_OPCODE_PARTICLE_SETTINGS_EVAL);
+       OperationDepsNode *op_node;
+       op_node = add_operation_node(&particle_settings->id,
+                                    DEG_NODE_TYPE_PARTICLE_SETTINGS,
+                                    NULL,
+                                    DEG_OPCODE_PARTICLE_SETTINGS_INIT);
+       op_node->set_as_entry();
+       add_operation_node(&particle_settings->id,
+                          DEG_NODE_TYPE_PARTICLE_SETTINGS,
+                          function_bind(BKE_particle_settings_eval_reset,
+                                        _1,
+                                        particle_settings_cow),
+                          DEG_OPCODE_PARTICLE_SETTINGS_RESET);
+       op_node = add_operation_node(&particle_settings->id,
+                                    DEG_NODE_TYPE_PARTICLE_SETTINGS,
+                                    NULL,
+                                    DEG_OPCODE_PARTICLE_SETTINGS_EVAL);
+       op_node->set_as_exit();
+       /* Texture slots. */
+       for (int mtex_index = 0; mtex_index < MAX_MTEX; ++mtex_index) {
+               MTex *mtex = particle_settings->mtex[mtex_index];
+               if (mtex == NULL || mtex->tex == NULL) {
+                       continue;
+               }
+               build_texture(mtex->tex);
+       }
 }
 
 /* Shapekeys */
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_nodes.h 
b/source/blender/depsgraph/intern/builder/deg_builder_nodes.h
index cdf1f6ed03d..3357f6cb0a2 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_nodes.h
+++ b/source/blender/depsgraph/intern/builder/deg_builder_nodes.h
@@ -190,7 +190,7 @@ struct DepsgraphNodeBuilder {
                                    int pchan_index,
                                    bool is_object_visible);
        void build_rigidbody(Scene *scene);
-       void build_particles(Object *object, bool is_object_visible);
+       void build_particle_systems(Object *object, bool is_object_visible);
        void build_particle_settings(ParticleSettings *part);
        void build_animdata(ID *id);
        void build_animdata_nlastrip_targets(ListBase *strips);
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_relations.cc 
b/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
index f66a0a8963a..1d5ff8cd3e5 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
+++ b/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
@@ -410,7 +410,8 @@ void DepsgraphRelationBuilder::add_forcefield_relations(
                }
                if (relation->psys) {
                        if (relation->ob != object) {
-                               ComponentKey eff_key(&relation->ob->id, 
DEG_NODE_TYPE_EVAL_PARTICLES);
+                               ComponentKey eff_key(&relation->ob->id,
+                                                    
DEG_NODE_TYPE_PARTICLE_SYSTEM);
                                add_relation(eff_key, key, name);
                                /* TODO: remove this when/if EVAL_PARTICLES is 
sufficient
                                 * for up to date particles.
@@ -420,7 +421,7 @@ void DepsgraphRelationBuilder::add_forcefield_relations(
                        }
                        else if (relation->psys != psys) {
                                OperationKey eff_key(&relation->ob->id,
-                                                    
DEG_NODE_TYPE_EVAL_PARTICLES,
+                                                    
DEG_NODE_TYPE_PARTICLE_SYSTEM,
                                                     
DEG_OPCODE_PARTICLE_SYSTEM_EVAL,
                                                     relation->psys->name);
                                add_relation(eff_key, key, name);
@@ -661,7 +662,7 @@ void DepsgraphRelationBuilder::build_object(Base *base, 
Object *object)
        build_object_data(object);
        /* Particle systems. */
        if (object->particlesystem.first != NULL) {
-               build_particles(object);
+               build_particle_systems(object);
        }
        /* Proxy object to copy from. */
        if (object->proxy_from != NULL) {
@@ -1692,16 +1693,21 @@ void DepsgraphRelationBuilder::build_rigidbody(Scene 
*scene)
        }
 }
 
-void DepsgraphRelationBuilder::build_particles(Object *object)
+void DepsgraphRelationBuilder::build_particle_systems(Object *object)
 {
        TimeSourceKey time_src_key;
        OperationKey obdata_ubereval_key(&object->id,
                                         DEG_NODE_TYPE_GEOMETRY,
                                         DEG_OPCODE_GEOMETRY_UBEREVAL);
        OperationKey eval_init_key(&object->id,
-                                  DEG_NODE_TYPE_EVAL_PARTICLES,
-                                  DEG_OPCODE_PARTICLE_SYSTEM_EVAL_INIT);
-
+                                  DEG_NODE_TYPE_PARTICLE_SYSTEM,
+                                  DEG_OPCODE_PARTICLE_SYSTEM_INIT);
+       OperationKey eval_done_key(&object->id,
+                                  DEG_NODE_TYPE_PARTICLE_SYSTEM,
+                                  DEG_OPCODE_PARTICLE_SYSTEM_DONE);
+       ComponentKey eval_key(&object->id, DEG_NODE_TYPE_PARTICLE_SYSTEM);
+       ComponentKey point_cache_key(&object->id, DEG_NODE_TYPE_POINT_CACHE);
+

@@ Diff output truncated at 10240 characters. @@

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