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feat(render): a geometry chunk emptied in place, the kind of its primitive told; a chunk gaining or losing its userdata gets a new buffer

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Erase() empties a chunk and keeps its handle to be filled again, for geometry made anew as it changes. Primitive() tells whether a chunk holds triangles or strips, -1 from a renderer which doesn't know. The VAO bank reused the buffer of a chunk of the same length even when the userdata came or went, the layout of the buffer differing then.
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maj00r
2026-11-03 21:50:31 +01:00
parent 823807201c
commit a24118baf7
8 changed files with 88 additions and 2 deletions
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1
rendering/openglrenderer.h
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@@ -65,6 +65,7 @@ public:
bool Replace(gfx::vertex_array &Vertices, gfx::userdata_array &Userdata, gfx::geometry_handle const &Geometry, int const Type, const std::size_t Offset = 0) override;
// adds supplied vertex data at the end of specified chunk
bool Append(gfx::vertex_array &Vertices, gfx::userdata_array &Userdata, gfx::geometry_handle const &Geometry, int const Type) override;
void Erase( gfx::geometry_handle const &Geometry ) override;
// provides direct access to index data of specfied chunk
gfx::index_array const &
Indices( gfx::geometry_handle const &Geometry ) const override;