public void InitInstancedRender()
{
// Clear instance data
foreach (PrimitiveData shapeData in shapes.Values)
{
shapeData.Instances.Clear();
}
// Gather instance data
foreach (var colObj in World.CollisionObjectArray)
{
var shape = colObj.CollisionShape;
if (shape.ShapeType == BroadphaseNativeType.SoftBodyShape)
{
//disable softbody
}
else
{
BulletSharp.Math.Matrix transform;
colObj.GetWorldTransform(out transform);
InitRigidBodyInstance(colObj, shape, ref transform);
}
}
foreach (KeyValuePair <CollisionShape, PrimitiveData> shape in shapes)
{
PrimitiveData shapeData = shape.Value;
if (shapeData.Instances.Count == 0)
{
removeList.Add(shape.Key);
}
}
// Remove shapes that had no instances
if (removeList.Count != 0)
{
foreach (var shape in removeList)
{
shapes.Remove(shape);
}
removeList.Clear();
}
}
PrimitiveData InitShapeData(CollisionShape shape)
{
PrimitiveData shapeData;
if (shapes.TryGetValue(shape, out shapeData) == false)
{
if (shape.ShapeType == BroadphaseNativeType.SoftBodyShape)
{
shapeData = new PrimitiveData();
}
else
{
shapeData = CreateShape(shape);
}
shapes.Add(shape, shapeData);
}
return(shapeData);
}
PrimitiveData CreateShape(CollisionShape shape)
{
PrimitiveData shapeData = new PrimitiveData();
uint[] indices;
BulletSharp.Math.Vector3[] vertexBuffer = PrimitiveMeshFactory.CreateShape(shape, out indices);
if (vertexBuffer != null)
{
shapeData.VertexCount = vertexBuffer.Length / 2;
BulletSharp.Math.Vector3[] vertices = new BulletSharp.Math.Vector3[shapeData.VertexCount];
BulletSharp.Math.Vector3[] normals = new BulletSharp.Math.Vector3[shapeData.VertexCount];
int i;
for (i = 0; i < shapeData.VertexCount; i++)
{
vertices[i] = vertexBuffer[i * 2];
normals[i] = vertexBuffer[i * 2 + 1];
}
shapeData.SetVertexBuffer(vertices);
}
if (indices != null)
{
ushort[] indices_s = PrimitiveMeshFactory.CompactIndexBuffer(indices);
if (indices_s != null)
{
shapeData.SetIndexBuffer(indices_s);
}
else
{
shapeData.SetIndexBuffer(indices);
}
shapeData.ElementCount = indices.Length;
}
return(shapeData);
}
