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chore: fill dumped gltf min max fields for position accessor

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Jan 2024-05-04 20:06:31 +02:00
parent c587dae05f
commit ebccd67676
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1 changed files with 32 additions and 2 deletions
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34
src/ObjWriting/XModel/Gltf/GltfWriter.cpp
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@ -45,7 +45,7 @@ namespace
CreateAccessors(gltf, xmodel);
CreateMesh(gltf, xmodel);
CreateScene(gltf, xmodel);
FillBufferData(xmodel, bufferData);
FillBufferData(gltf, xmodel, bufferData);
CreateBuffer(gltf, xmodel, bufferData);
const json jRoot = gltf;
@ -274,13 +274,24 @@ namespace
}
}
static void FillBufferData(const XModelCommon& xmodel, std::vector<uint8_t>& bufferData)
void FillBufferData(JsonRoot& gltf, const XModelCommon& xmodel, std::vector<uint8_t>& bufferData) const
{
const auto expectedBufferSize = GetExpectedBufferSize(xmodel);
bufferData.resize(expectedBufferSize);
auto currentBufferOffset = 0u;
float minPosition[3]{
std::numeric_limits<float>::max(),
std::numeric_limits<float>::max(),
std::numeric_limits<float>::max(),
};
float maxPosition[3]{
-std::numeric_limits<float>::max(),
-std::numeric_limits<float>::max(),
-std::numeric_limits<float>::max(),
};
for (const auto& commonVertex : xmodel.m_vertices)
{
auto* vertex = reinterpret_cast<GltfVertex*>(&bufferData[currentBufferOffset]);
@ -289,6 +300,19 @@ namespace
vertex->coordinates[1] = commonVertex.coordinates[2];
vertex->coordinates[2] = -commonVertex.coordinates[1];
if (minPosition[0] > vertex->coordinates[0])
minPosition[0] = vertex->coordinates[0];
if (minPosition[1] > vertex->coordinates[1])
minPosition[1] = vertex->coordinates[1];
if (minPosition[2] > vertex->coordinates[2])
minPosition[2] = vertex->coordinates[2];
if (maxPosition[0] < vertex->coordinates[0])
maxPosition[0] = vertex->coordinates[0];
if (maxPosition[1] < vertex->coordinates[1])
maxPosition[1] = vertex->coordinates[1];
if (maxPosition[2] < vertex->coordinates[2])
maxPosition[2] = vertex->coordinates[2];
vertex->normal[0] = commonVertex.normal[0];
vertex->normal[1] = commonVertex.normal[2];
vertex->normal[2] = -commonVertex.normal[1];
@ -299,6 +323,12 @@ namespace
currentBufferOffset += sizeof(GltfVertex);
}
if (gltf.accessors.has_value())
{
gltf.accessors.value()[m_position_accessor].min = std::vector({minPosition[0], minPosition[1], minPosition[2]});
gltf.accessors.value()[m_position_accessor].max = std::vector({maxPosition[0], maxPosition[1], maxPosition[2]});
}
for (const auto& object : xmodel.m_objects)
{
for (const auto& face : object.m_faces)