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perf(tracks): geometry of neighbouring tracks of a cell which share the material drawn together, with one material bind and one upload of model data; chunks of the same geometry bank sent to the gpu in a single multi draw call

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Hirek
2026-10-07 17:13:32 +02:00
parent 398fdac6a1
commit e335b89fcb
6 changed files with 165 additions and 16 deletions
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33
rendering/geometrybank.cpp
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@@ -332,6 +332,13 @@ geometry_bank::draw_instanced( gfx::geometry_handle const &Geometry, gfx::stream
return draw_instanced_( Geometry, Units, InstanceCount, Streams );
}
// draws geometry stored in supplied sequence of chunks of the bank
std::size_t
geometry_bank::draw_batch( gfx::geometry_handle const *First, gfx::geometry_handle const *Last, gfx::stream_units const &Units, unsigned int const Streams ) {
// template method implementation
return draw_batch_( First, Last, Units, Streams );
}
// frees subclass-specific resources associated with the bank, typically called when the bank wasn't in use for a period of time
void
geometry_bank::release() {
@@ -436,6 +443,32 @@ geometrybank_manager::draw_instanced( gfx::geometry_handle const &Geometry, std:
m_primitivecount += bankrecord.first->draw_instanced( Geometry, m_units, InstanceCount, Streams );
}
// draws geometry stored in supplied sequence of chunks
void
geometrybank_manager::draw_batch( gfx::geometry_handle const *First, gfx::geometry_handle const *Last, unsigned int const Streams ) {
while( First != Last ) {
if( *First == null_handle ) {
++First;
continue;
}
// neighbouring chunks stored in the same bank go to the bank together
auto const *last { First + 1 };
while( ( last != Last )
&& ( last->bank == First->bank ) ) {
++last;
}
auto &bankrecord = bank( *First );
bankrecord.second = m_garbagecollector.timestamp();
m_primitivecount += bankrecord.first->draw_batch( First, last, m_units, Streams );
First = last;
}
}
// provides direct access to index data of specfied chunk
gfx::index_array const &
geometrybank_manager::indices( gfx::geometry_handle const &Geometry ) const {