I added a solid vertex and displayed it. Now I have a matrix, but I don't know how to modify this set of vertices. Can anyone tell me the relevant API?

[idclosed]

I added a solid vertex and displayed it. Now I have a matrix, but I don't know how to modify this set of vertices. Can anyone tell me the relevant API?

    std::vector<Vertex>& m_vertices = kitMesh->m_vertices;
    std::vector<uint16_t>& m_indices = kitMesh->m_indices;

    MaterialInstance* materialInstance = kitMesh->m_materialInstance;

    uint32_t vertices_count = static_cast<uint32_t>(m_vertices.size());
    int8_t vertice_size = sizeof(Vertex);

    uint32_t pos_begin = 0;
    uint32_t pos_tange = pos_begin + sizeof(Vertex::position);
    uint32_t pos_color = pos_tange + sizeof(Vertex::tangent);
    uint32_t pos_uv = pos_color + sizeof(Vertex::color);
    uint32_t pos_id = pos_uv + sizeof(Vertex::uv);

    kitMesh->m_vertexBuffer = VertexBuffer::Builder()
        .vertexCount(vertices_count).bufferCount(1)
        .attribute(VertexAttribute::POSITION, 0, VertexBuffer::AttributeType::FLOAT3, 0, vertice_size)
        .attribute(VertexAttribute::TANGENTS, 0, VertexBuffer::AttributeType::FLOAT4, pos_tange, vertice_size)
        .attribute(VertexAttribute::COLOR, 0, VertexBuffer::AttributeType::UBYTE4, pos_color, vertice_size)
        .attribute(VertexAttribute::UV0, 0, VertexBuffer::AttributeType::FLOAT2, pos_uv, vertice_size)
        .attribute(VertexAttribute::CUSTOM0, 0, VertexBuffer::AttributeType::UBYTE4, pos_id, vertice_size)
        .normalized(VertexAttribute::COLOR)
        .normalized(VertexAttribute::CUSTOM0).build(*m_engine);
    kitMesh->m_vertexBuffer->setBufferAt(*m_engine, 0,
        VertexBuffer::BufferDescriptor(m_vertices.data(), vertices_count * vertice_size, nullptr));

    kitMesh->m_indexBuffer = IndexBuffer::Builder().indexCount((uint32_t)m_indices.size())
        .bufferType(IndexBuffer::IndexType::USHORT).build(*m_engine);
    kitMesh->m_indexBuffer->setBuffer(*m_engine,
        IndexBuffer::BufferDescriptor(m_indices.data(), m_indices.size() * sizeof(uint16_t), nullptr));

    kitMesh->m_entity = EntityManager::get().create();
    m_scene->addEntity(kitMesh->m_entity);

    RenderableManager::Builder(1)
        .boundingBox(kitMesh->m_box)
        .material(0, materialInstance)
        .geometry(0, RenderableManager::PrimitiveType::TRIANGLES, kitMesh->m_vertexBuffer, kitMesh->m_indexBuffer, 0, m_indices.size())
        .culling(false)
        .fog(false)
        .build(*m_engine, kitMesh->m_entity);

[romainguy]

To apply a transform you need to use the transform manager:

auto& tcm = engine->getTransformManager();
tcm.setTransform(tcm.getInstance(renderable),
        filament::math::mat4f::rotation(now, filament::math::float3{ 0, 0, 1 }));

[idclosed]

Great, that's what I want, thank you.