MeshData::MeshData(const IndexedModel& model) :
ReferenceCounter(),
m_drawCount(model.GetIndices().size())
{
if(!model.IsValid())
{
std::cout << "Error: Invalid mesh! Must have same number of positions, texCoords, normals, and tangents! "
<< "(Maybe you forgot to Finalize() your IndexedModel?)" << std::endl;
assert(0 != 0);
}
glGenVertexArrays(1, &m_vertexArrayObject);
glBindVertexArray(m_vertexArrayObject);
glGenBuffers(NUM_BUFFERS, m_vertexArrayBuffers);
glBindBuffer(GL_ARRAY_BUFFER, m_vertexArrayBuffers[POSITION_VB]);
glBufferData(GL_ARRAY_BUFFER, model.GetPositions().size() * sizeof(model.GetPositions()[0]), &model.GetPositions()[0], GL_STATIC_DRAW);
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, 0);
glBindBuffer(GL_ARRAY_BUFFER, m_vertexArrayBuffers[TEXCOORD_VB]);
glBufferData(GL_ARRAY_BUFFER, model.GetTexCoords().size() * sizeof(model.GetTexCoords()[0]), &model.GetTexCoords()[0], GL_STATIC_DRAW);
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 0, 0);
glBindBuffer(GL_ARRAY_BUFFER, m_vertexArrayBuffers[NORMAL_VB]);
glBufferData(GL_ARRAY_BUFFER, model.GetNormals().size() * sizeof(model.GetNormals()[0]), &model.GetNormals()[0], GL_STATIC_DRAW);
glEnableVertexAttribArray(2);
glVertexAttribPointer(2, 3, GL_FLOAT, GL_FALSE, 0, 0);
glBindBuffer(GL_ARRAY_BUFFER, m_vertexArrayBuffers[TANGENT_VB]);
glBufferData(GL_ARRAY_BUFFER, model.GetTangents().size() * sizeof(model.GetTangents()[0]), &model.GetTangents()[0], GL_STATIC_DRAW);
glEnableVertexAttribArray(3);
glVertexAttribPointer(3, 3, GL_FLOAT, GL_FALSE, 0, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_vertexArrayBuffers[INDEX_VB]);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, model.GetIndices().size() * sizeof(model.GetIndices()[0]), &model.GetIndices()[0], GL_STATIC_DRAW);
}
