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Code Issues 156 Wiki Activity

Draw the instances from the GPU with multi draws, the model block of each draw read by its number

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Hirek
2026-10-18 00:47:05 +02:00
parent 7221c153dd
commit 494304903f
18 changed files with 609 additions and 64 deletions
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8
rendering/geometrybank.h
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@@ -138,6 +138,10 @@ public:
// draws geometry stored in specified chunk with the command at Offset (bytes) in the bound draw indirect buffer,
// a glDrawElementsIndirect one for an indexed chunk, glDrawArraysIndirect otherwise
void draw_indirect( gfx::geometry_handle const &Geometry, std::intptr_t const Offset, unsigned int const Streams = basic_streams );
// draws chunks of the bank with Count commands from Offset (bytes) in the bound draw indirect buffer, Stride bytes apart,
// with a single glMultiDrawElementsIndirect (or glMultiDrawArraysIndirect). the chunks have to be of the type of the
// specified one and indexed alike. returns: false if the bank can't, nothing is drawn then
auto draw_indirect_multi( gfx::geometry_handle const &Geometry, std::intptr_t const Offset, std::uint32_t const Count, std::uint32_t const Stride ) -> bool;
// draws geometry stored in supplied list of chunks
template <typename Iterator_>
auto draw( Iterator_ First, Iterator_ Last, gfx::stream_units const &Units, unsigned int const Streams = basic_streams ) ->std::size_t {
@@ -214,6 +218,7 @@ private:
// indirect_source() and draw_indirect() subclass details. by default the bank can't draw indirectly
virtual auto indirect_source_( gfx::geometry_handle const & /*Geometry*/, gfx::indirect_source & /*Source*/ ) -> bool { return false; }
virtual void draw_indirect_( gfx::geometry_handle const & /*Geometry*/, std::intptr_t const /*Offset*/, unsigned int const /*Streams*/ ) {}
virtual auto draw_indirect_multi_( gfx::geometry_handle const & /*Geometry*/, std::intptr_t const /*Offset*/, std::uint32_t const /*Count*/, std::uint32_t const /*Stride*/ ) -> bool { return false; }
// resource release subclass details
virtual void release_() = 0;
};
@@ -251,6 +256,9 @@ public:
auto indirect_source( gfx::geometry_handle const &Geometry, gfx::indirect_source &Source ) -> bool;
// draws geometry stored in specified chunk with the command at Offset (bytes) in the bound draw indirect buffer
void draw_indirect( gfx::geometry_handle const &Geometry, std::intptr_t const Offset, unsigned int const Streams = basic_streams );
// draws chunks of the bank of the specified one, of its type and indexed alike, with Count commands from Offset in the bound
// draw indirect buffer, Stride bytes apart, in one call. returns: false if the bank can't, nothing is drawn then
auto draw_indirect_multi( gfx::geometry_handle const &Geometry, std::intptr_t const Offset, std::uint32_t const Count, std::uint32_t const Stride ) -> bool;
template <typename Iterator_>
void draw( Iterator_ First, Iterator_ Last, unsigned int const Streams = basic_streams ) {
while( First != Last ) {