internal void LoadPrimitveFromFile(string fileName, out DebugVertexType[] vertices, out UInt16[] indices)
{
Assimp.Scene scene = m_importer.ImportFile(fileName, PostProcessPreset.TargetRealTimeMaximumQuality | PostProcessPreset.ConvertToLeftHanded);
// Loaded primitive files should always only contain a single mesh so we load only the first mesh
if (scene.HasMeshes)
{
Assimp.Mesh assimpMesh = scene.Meshes[0];
vertices = new DebugVertexType[assimpMesh.Vertices.Count];
indices = new UInt16[assimpMesh.GetIndices().Length];
for (int i = 0; i < assimpMesh.Vertices.Count; ++i)
{
Vector3 position = FromAssimpVector(assimpMesh.Vertices[i]);
vertices[i].position = position;
}
for (int i = 0; i < assimpMesh.GetIndices().Length; i++)
{
int index = assimpMesh.GetIndices()[i];
indices[i] = (UInt16)index;
}
}
else
{
vertices = new DebugVertexType[0];
indices = new UInt16[0];
}
}
protected override void CreateBuffer(Device device)
{
m_vertexCount = 8;
m_indexCount = 36;
DebugVertexType[] vertices = new DebugVertexType[m_vertexCount];
UInt16[] indices = new UInt16[m_indexCount];
vertices[0].position = new Vector3(-0.5f, -0.5f, -0.5f);
vertices[1].position = new Vector3(-0.5f, 0.5f, -0.5f);
vertices[2].position = new Vector3(0.5f, -0.5f, -0.5f);
vertices[3].position = new Vector3(0.5f, 0.5f, -0.5f);
vertices[4].position = new Vector3(-0.5f, -0.5f, 0.5f);
vertices[5].position = new Vector3(-0.5f, 0.5f, 0.5f);
vertices[6].position = new Vector3(0.5f, -0.5f, 0.5f);
vertices[7].position = new Vector3(0.5f, 0.5f, 0.5f);
indices[0] = 0;
indices[1] = 1;
indices[2] = 2;
indices[3] = 1;
indices[4] = 3;
indices[5] = 2;
indices[6] = 2;
indices[7] = 3;
indices[8] = 6;
indices[9] = 6;
indices[10] = 3;
indices[11] = 7;
indices[12] = 1;
indices[13] = 5;
indices[14] = 3;
indices[15] = 5;
indices[16] = 7;
indices[17] = 3;
indices[18] = 5;
indices[19] = 6;
indices[20] = 7;
indices[21] = 6;
indices[22] = 5;
indices[23] = 4;
indices[24] = 4;
indices[25] = 1;
indices[26] = 0;
indices[27] = 1;
indices[28] = 4;
indices[29] = 5;
indices[30] = 0;
indices[31] = 2;
indices[32] = 4;
indices[33] = 6;
indices[34] = 4;
indices[35] = 2;
BufferDescription vertexBufferDescription = new BufferDescription(Utilities.SizeOf <DebugVertexType>() * m_vertexCount, BindFlags.VertexBuffer, ResourceUsage.Default);
m_vertexBuffer = Buffer.Create(device, vertices, vertexBufferDescription);
m_indexBuffer = Buffer.Create(device, BindFlags.IndexBuffer, indices);
BufferDescription instanceBufferDesc = new BufferDescription()
{
BindFlags = BindFlags.VertexBuffer,
CpuAccessFlags = CpuAccessFlags.Write,
OptionFlags = ResourceOptionFlags.None,
SizeInBytes = Utilities.SizeOf <PrimitivePerInstanceData>() * MAX_NUM_INSTANCES,
Usage = ResourceUsage.Dynamic
};
m_instanceBuffer = new Buffer(device, instanceBufferDesc);
}