void AddAsteroidToBuffer(StaticAsteroid ast, Material mat)
{
var model = ast.Drawable as ModelFile;
var l0 = model.Levels[0];
var vertType = l0.Mesh.VertexBuffer.VertexType.GetType();
var transform = ast.RotationMatrix * Matrix4.CreateTranslation(ast.Position * field.CubeSize);
var norm = transform;
norm.Invert();
norm.Transpose();
int vertOffset = verts.Count;
for (int i = 0; i < l0.Mesh.VertexCount; i++)
{
VertexPositionNormalColorTexture vert;
if (vertType == typeof(VertexPositionNormalColorTexture))
{
vert = l0.Mesh.verticesVertexPositionNormalColorTexture[i];
}
else if (vertType == typeof(VertexPositionNormalTexture))
{
var v = l0.Mesh.verticesVertexPositionNormalTexture[i];
vert = new VertexPositionNormalColorTexture(
v.Position,
v.Normal,
Color4.White,
v.TextureCoordinate);
}
else if (vertType == typeof(VertexPositionNormalTextureTwo))
{
var v = l0.Mesh.verticesVertexPositionNormalTextureTwo[i];
vert = new VertexPositionNormalColorTexture(
v.Position,
v.Normal,
Color4.White,
v.TextureCoordinate);
}
else if (vertType == typeof(VertexPositionNormalDiffuseTextureTwo))
{
var v = l0.Mesh.verticesVertexPositionNormalDiffuseTextureTwo[i];
vert = new VertexPositionNormalColorTexture(
v.Position,
v.Normal,
v.Diffuse,
v.TextureCoordinate);
}
else
{
throw new NotImplementedException("Asteroids: " + vertType.FullName);
}
vert.Position = VectorMath.Transform(vert.Position, transform);
vert.Normal = (norm * new Vector4(vert.Normal, 0)).Xyz;
verts.Add(vert);
}
for (int i = l0.StartMesh; i < l0.StartMesh + l0.MeshCount; i++)
{
var m = l0.Mesh.Meshes[i];
var baseVertex = vertOffset + l0.StartVertex + m.StartVertex;
int indexStart = m.TriangleStart;
int indexCount = m.NumRefVertices;
for (int j = indexStart; j < indexStart + indexCount; j++)
{
var idx = baseVertex + l0.Mesh.Indices[j];
if (idx > ushort.MaxValue)
{
throw new Exception();
}
indices.Add((ushort)idx);
}
}
}
void AddAsteroidToBuffer(StaticAsteroid ast, Material mat, bool singleMat)
{
var model = (ModelFile)ast.Drawable.LoadFile(sys.ResourceManager);
model.Initialize(sys.ResourceManager);
var l0 = model.Levels[0];
var vertType = l0.Mesh.VertexBuffer.VertexType.GetType();
var transform = ast.RotationMatrix * Matrix4x4.CreateTranslation(ast.Position * field.CubeSize);
var norm = transform;
Matrix4x4.Invert(norm, out norm);
norm = Matrix4x4.Transpose(norm);
int vertOffset = verts.Count;
for (int i = 0; i < l0.Mesh.VertexCount; i++)
{
VertexPositionNormalDiffuseTexture vert;
if (vertType == typeof(VertexPositionNormalDiffuseTexture))
{
vert = l0.Mesh.verticesVertexPositionNormalDiffuseTexture[i];
}
else if (vertType == typeof(VertexPositionNormalTexture))
{
var v = l0.Mesh.verticesVertexPositionNormalTexture[i];
vert = new VertexPositionNormalDiffuseTexture(
v.Position,
v.Normal,
(uint)Color4.White.ToArgb(),
v.TextureCoordinate);
}
else if (vertType == typeof(VertexPositionNormalTextureTwo))
{
var v = l0.Mesh.verticesVertexPositionNormalTextureTwo[i];
vert = new VertexPositionNormalDiffuseTexture(
v.Position,
v.Normal,
(uint)Color4.White.ToArgb(),
v.TextureCoordinate);
}
else if (vertType == typeof(VertexPositionNormalDiffuseTextureTwo))
{
var v = l0.Mesh.verticesVertexPositionNormalDiffuseTextureTwo[i];
vert = new VertexPositionNormalDiffuseTexture(
v.Position,
v.Normal,
v.Diffuse,
v.TextureCoordinate);
}
else
{
throw new NotImplementedException("Asteroids: " + vertType.FullName);
}
vert.Position = Vector3.Transform(vert.Position, transform);
vert.Normal = Vector3.TransformNormal(vert.Normal, norm);
verts.Add(vert);
}
for (int i = l0.StartMesh; i < l0.StartMesh + l0.MeshCount; i++)
{
var m = l0.Mesh.Meshes[i];
if (m.Material != mat && !singleMat)
{
continue;
}
var baseVertex = vertOffset + l0.StartVertex + m.StartVertex;
int indexStart = m.TriangleStart;
int indexCount = m.NumRefVertices;
for (int j = indexStart; j < indexStart + indexCount; j++)
{
var idx = baseVertex + l0.Mesh.Indices[j];
if (idx > ushort.MaxValue)
{
throw new Exception();
}
indices.Add((ushort)idx);
}
}
}
