public static GlassModelCombined FromModel(GraphicsDevice graphicsDevice, Model model)
{
// Combine Meshes
var meshCount = model.Meshes.Count;
var vertexCount = model.Meshes[01].MeshParts[0].VertexBuffer.VertexCount;
// Declare new arrays
var vertexData = new VertexPositionNormalTextureColor[vertexCount];
var transforms = new Matrix[model.Bones.Count];
model.CopyAbsoluteBoneTransformsTo(transforms);
for (int i = 0; i < model.Meshes.Count; i++)
{
var mesh = model.Meshes[i];
var part = mesh.MeshParts[0];
var vertCount = part.NumVertices;
var vertexElements = new VertexPositionNormalTextureColor[vertCount];
var stride = VertexPositionNormalTextureColor.VertexDeclaration.VertexStride;
model.Meshes[0].MeshParts[0].VertexBuffer.GetData(part.VertexOffset * stride, vertexElements, 0, vertCount, stride);
var transform = transforms[mesh.ParentBone.Index];
for (int j = 0; j < vertCount; j++)
{
vertexData[part.VertexOffset + j] = vertexElements[j];
}
}
var primitiveCount = 0;
var indicies = new short[model.Meshes[0].MeshParts[0].IndexBuffer.IndexCount];
model.Meshes[0].MeshParts[0].IndexBuffer.GetData(indicies);
for (int i = 0; i < model.Meshes.Count; i++)
{
var part = model.Meshes[i].MeshParts[0];
var startIndex = part.StartIndex;
var indexCount = part.PrimitiveCount * 3;
var numVerts = part.NumVertices;
primitiveCount += part.PrimitiveCount;
var indexElements = new short[indexCount];
part.IndexBuffer.GetData(startIndex * 2, indexElements, 0, indexCount);
for (int j = 0; j < indexCount; j++)
{
indicies[j + startIndex] = (short)(indexElements[j] + startIndex);
}
}
var r = new Random();
var glassVertices = new GlassVertexDeclaration[vertexCount];
for (int i = 0; i < vertexCount; i++)
{
var vert = vertexData[i];
glassVertices[i].Position = vert.Position;
glassVertices[i].Position.Z = 0;
glassVertices[i].TextureCoordinate = vert.TextureCoordinate;
glassVertices[i].Normal = vert.Normal;
glassVertices[i].Color = vert.Color;
}
return(new GlassModelCombined(graphicsDevice, glassVertices, indicies, primitiveCount));
}
public static GlassModel FromModel(Model model)
{
var random = new Random();
var meshLst = new List <GlassModelShard>();
var vb = model.Meshes[0].MeshParts[0].VertexBuffer;
var ib = model.Meshes[0].MeshParts[0].IndexBuffer;
foreach (var mesh in model.Meshes)
{
var partLst = new List <GlassPart>();
foreach (var part in mesh.MeshParts)
{
var glassPart = new GlassPart
{
StartIndex = part.StartIndex,
NumVerticies = part.NumVertices,
PrimitiveCount = part.PrimitiveCount,
VertexOffset = part.VertexOffset
};
partLst.Add(glassPart);
}
var randZ = random.Next(1, 2);
var randX = random.Next(1, 2);
var randY = random.Next(1, 2);
var flipX = random.Next(0, 2);
if (flipX == 0)
{
randX *= -1;
}
var flipY = random.Next(0, 2);
if (flipY == 0)
{
randY *= -1;
}
var flipZ = random.Next(0, 2);
if (flipZ == 0)
{
randZ *= -1;
}
// Get the centre of the shard
var stride = vb.VertexDeclaration.VertexStride;
var numVerticies = mesh.MeshParts[0].NumVertices;
var vertexOffset = mesh.MeshParts[0].VertexOffset;
var vertexData = new VertexPositionNormalTextureColor[numVerticies];
mesh.MeshParts[0].VertexBuffer.GetData(vertexOffset * stride, vertexData, 0, numVerticies, stride);
// Distance from impact pt centre
var roation = new Vector3(randX, randY, randZ);
meshLst.Add(new GlassModelShard(partLst, roation, vertexData));
}
return(new GlassModel(vb, ib, meshLst));
}
