diff options
author | Jacques Lucke <jacques@blender.org> | 2021-11-23 16:47:25 +0300 |
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committer | Jacques Lucke <jacques@blender.org> | 2021-11-23 16:49:26 +0300 |
commit | 47276b84701727c2f187c77f1ec502b4ca4963bd (patch) | |
tree | ac6e6fced7908dbaa984cfe686b2e3a080b99fc7 /source/blender/functions/intern | |
parent | 0bedd5d14f6d61a6a4a96cc7f88484b0dc46f752 (diff) |
Geometry Nodes: reduce overhead when processing single values
Currently the geometry nodes evaluator always stores a field for every
type that supports it, even if it is just a single value. This results in a lot
of overhead when there are many sockets that just contain a single
value, which is often the case.
This introduces a new `ValueOrField<T>` type that is used by the geometry
nodes evaluator. Now a field will only be created when it is actually
necessary. See D13307 for more details. In extrem cases this can speed
up the evaluation 2-3x (those cases are probably never hit in practice
though, but it's good to get rid of unnecessary overhead nevertheless).
Differential Revision: https://developer.blender.org/D13307
Diffstat (limited to 'source/blender/functions/intern')
-rw-r--r-- | source/blender/functions/intern/field.cc | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/source/blender/functions/intern/field.cc b/source/blender/functions/intern/field.cc index 91b1bdfd8f0..7934490a6d9 100644 --- a/source/blender/functions/intern/field.cc +++ b/source/blender/functions/intern/field.cc @@ -511,10 +511,16 @@ GField make_field_constant_if_possible(GField field) const CPPType &type = field.cpp_type(); BUFFER_FOR_CPP_TYPE_VALUE(type, buffer); evaluate_constant_field(field, buffer); - auto constant_fn = std::make_unique<CustomMF_GenericConstant>(type, buffer, true); + GField new_field = make_constant_field(type, buffer); type.destruct(buffer); + return new_field; +} + +GField make_constant_field(const CPPType &type, const void *value) +{ + auto constant_fn = std::make_unique<CustomMF_GenericConstant>(type, value, true); auto operation = std::make_shared<FieldOperation>(std::move(constant_fn)); - return GField{operation, 0}; + return GField{std::move(operation), 0}; } GVArray FieldContext::get_varray_for_input(const FieldInput &field_input, |