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Begin support importing models of different vertex/index counts

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This commit is contained in:
Joshua Goins 2023-12-09 17:17:36 -05:00
parent 73cc2a0753
commit b38508e810
1 changed files with 23 additions and 4 deletions
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27
parts/mdl/mdlimport.cpp
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@ -52,14 +52,33 @@ void importModel(physis_MDL &existingModel, const QString &filename)
const auto &indexView = model.bufferViews[indexAccessor.bufferView];
const auto &indexBuffer = model.buffers[indexView.buffer];
const int newVertexCount = vertexAccessor.count;
const int oldVertexCount = existingModel.lods[lodNumber].parts[partNumber].num_vertices;
if (newVertexCount != oldVertexCount) {
qInfo() << "- Difference in vertex count!" << newVertexCount << "old:" << oldVertexCount;
}
const int newIndexCount = indexAccessor.count;
const int oldIndexCount = existingModel.lods[lodNumber].parts[partNumber].num_indices;
if (newIndexCount != oldIndexCount) {
qInfo() << "- Difference in index count!" << newIndexCount << "old:" << oldIndexCount;
}
qInfo() << "- Importing mesh of" << vertexAccessor.count << "vertices and" << indexAccessor.count << "indices.";
std::vector<Vertex> newVertices;
for (int i = 0; i < vertexAccessor.count; i++) {
auto vertexData = (glm::vec3 *)(vertexBuffer.data.data() + (vertexView.byteStride * i) + vertexView.byteOffset + vertexAccessor.byteOffset);
auto vertexData = (glm::vec3 *)(vertexBuffer.data.data() + (std::max(vertexView.byteStride, sizeof(float) * 3) * i) + vertexView.byteOffset
+ vertexAccessor.byteOffset);
// Replace position data
auto vertex = existingModel.lods[lodNumber].parts[partNumber].vertices[i];
Vertex vertex;
if (i < existingModel.lods[lodNumber].parts[partNumber].num_vertices) {
vertex = existingModel.lods[lodNumber].parts[partNumber].vertices[i];
}
vertex.position[0] = vertexData->x;
vertex.position[1] = vertexData->y;
vertex.position[2] = vertexData->z;
@ -67,9 +86,9 @@ void importModel(physis_MDL &existingModel, const QString &filename)
newVertices.push_back(vertex);
}
auto indexData = (const uint16_t *)(&indexBuffer.data.at(0) + indexView.byteOffset + indexAccessor.byteOffset);
auto indexData = (const uint16_t *)(indexBuffer.data.data() + indexView.byteOffset + indexAccessor.byteOffset);
physis_mdl_replace_vertices(&existingModel, lodNumber, partNumber, vertexAccessor.count, newVertices.data(), indexAccessor.count, indexData);
physis_mdl_replace_vertices(&existingModel, lodNumber, partNumber, newVertices.size(), newVertices.data(), indexAccessor.count, indexData);
}
}