80 lines
2.1 KiB
C++
80 lines
2.1 KiB
C++
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#pragma once
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#include "gltf/Raw2Gltf.hpp"
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struct PrimitiveData {
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enum MeshMode {
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POINTS = 0,
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LINES,
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LINE_LOOP,
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LINE_STRIP,
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TRIANGLES,
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TRIANGLE_STRIP,
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TRIANGLE_FAN
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};
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PrimitiveData(
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const AccessorData& indices,
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const MaterialData& material,
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std::shared_ptr<draco::Mesh> dracoMesh);
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PrimitiveData(const AccessorData& indices, const MaterialData& material);
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void AddAttrib(std::string name, const AccessorData& accessor);
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void AddTarget(
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const AccessorData* positions,
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const AccessorData* normals,
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const AccessorData* tangents);
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template <class T>
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void AddDracoAttrib(const AttributeDefinition<T>& attribute, const std::vector<T>& attribArr) {
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draco::PointAttribute att;
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int8_t componentCount = attribute.glType.count;
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att.Init(
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attribute.dracoAttribute,
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nullptr,
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componentCount,
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attribute.dracoComponentType,
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false,
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componentCount * draco::DataTypeLength(attribute.dracoComponentType),
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0);
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const int dracoAttId = dracoMesh->AddAttribute(att, true, to_uint32(attribArr.size()));
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draco::PointAttribute* attPtr = dracoMesh->attribute(dracoAttId);
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std::vector<uint8_t> buf(sizeof(T));
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for (uint32_t ii = 0; ii < attribArr.size(); ii++) {
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uint8_t* ptr = &buf[0];
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attribute.glType.write(ptr, attribArr[ii]);
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attPtr->SetAttributeValue(attPtr->mapped_index(draco::PointIndex(ii)), ptr);
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}
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dracoAttributes[attribute.gltfName] = dracoAttId;
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}
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void NoteDracoBuffer(const BufferViewData& data);
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const int indices;
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const unsigned int material;
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const MeshMode mode;
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std::vector<std::tuple<int, int, int>> targetAccessors{};
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std::map<std::string, int> attributes;
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std::map<std::string, int> dracoAttributes;
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std::shared_ptr<draco::Mesh> dracoMesh;
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int dracoBufferView;
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};
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void to_json(json& j, const PrimitiveData& d);
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