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Preserve precise viewer placements

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Keep placement transformations in double precision through streaming, sidecar caching, and viewport recomposition so large coordinates can be cancelled before the final GPU float upload.

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This commit is contained in:
Dion Moult
2026-05-19 17:31:53 +10:00
parent 8b8fafa698
commit e0a504417c
10 changed files with 51 additions and 40 deletions
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src/ifcviewer/SidecarCache.cpp
+2 -2
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@@ -17,7 +17,7 @@
* *
********************************************************************************/
// v11 layout (all multi-byte fields native-endian; endianness marker in header).
// v12 layout (all multi-byte fields native-endian; endianness marker in header).
//
// SidecarHeader (12 bytes)
//
@@ -30,7 +30,7 @@
// MeshInfo[num_meshes]
//
// uint32_t num_instances
// InstanceCpu[num_instances] (already sorted by mesh_id; v10 layout)
// InstanceCpu[num_instances] (already sorted by mesh_id; v12 layout)
//
// uint32_t has_coordinate_operation (v11+)
// double[16] coordinate_operation_meters (v11+; column-major)