diff options
author | Brecht Van Lommel <brecht> | 2021-09-09 18:22:20 +0300 |
---|---|---|
committer | Brecht Van Lommel <brecht@blender.org> | 2021-09-10 17:48:30 +0300 |
commit | 128eb6cbe928e58dfee1c64f340fd8d663134c26 (patch) | |
tree | 68c510ccb7bc3b60af06462392ec46da5baf53a6 /source/blender/makesdna/DNA_fluid_types.h | |
parent | 42215d7cb8797ba5b631b9df93d07e895c4b1dda (diff) |
Modifiers: export motion blur velocity through attribute
Previously fluid simulation and Alembic modifiers had a dedicated function
to query the velocity for motion blur. Now use a more generic system where
those modifiers output a velocity attribute.
Advantages:
* Geometry and particle nodes can output velocity through the same mechanism,
or read the attribute coming from earlier modifiers.
* The velocity can be preserved through modifiers like subdivision surface or
auto smooth.
* USD and Alembic previously only output velocity from fluid simulation, now
they work with velocity from other sources too.
* Simplifies the code for renderers like Cycles and exporters like
Alembic and USD.
This breaks compatibility:
* External renderers and exporters accessing these velocities through the
Python API now need to use the attribute instead.
* Existing modifier node setups that create an attribute named "velocity"
will render differently with motion blur.
Differential Revision: https://developer.blender.org/D12305
Diffstat (limited to 'source/blender/makesdna/DNA_fluid_types.h')
-rw-r--r-- | source/blender/makesdna/DNA_fluid_types.h | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/source/blender/makesdna/DNA_fluid_types.h b/source/blender/makesdna/DNA_fluid_types.h index 835af3c6ff8..0cbef540306 100644 --- a/source/blender/makesdna/DNA_fluid_types.h +++ b/source/blender/makesdna/DNA_fluid_types.h @@ -480,10 +480,6 @@ enum { SM_HRES_FULLSAMPLE = 2, }; -typedef struct FluidDomainVertexVelocity { - float vel[3]; -} FluidDomainVertexVelocity; - typedef struct FluidDomainSettings { /* -- Runtime-only fields (from here on). -- */ @@ -509,8 +505,6 @@ typedef struct FluidDomainSettings { struct GPUTexture *tex_flags; struct GPUTexture *tex_range_field; struct Object *guide_parent; - /** Vertex velocities of simulated fluid mesh. */ - struct FluidDomainVertexVelocity *mesh_velocities; struct EffectorWeights *effector_weights; /* Domain object data. */ @@ -607,9 +601,8 @@ typedef struct FluidDomainSettings { int mesh_smoothen_pos; int mesh_smoothen_neg; int mesh_scale; - int totvert; short mesh_generator; - char _pad6[6]; /* Unused. */ + char _pad6[2]; /* Unused. */ /* Secondary particle options. */ int particle_type; |