public void Begin(PrimitiveType primType, Camera cam)
{
if (hasBegun)
{
throw new Exception("Can't call Begin until current batch has ended");
}
vertCounter = 0;
vertsPerPrimitive = numVertsPerPrimitive(primType);
currentCam = cam;
currentType = primType;
hasBegun = true;
}
public void DrawVertexBuffer(VertexBuffer buffer, PrimitiveType primType, Camera cam)
{
device.SetVertexBuffer(buffer);
effect.View = currentCam.View;
effect.Projection = currentCam.Projection;
effect.CurrentTechnique.Passes[0].Apply();
int passes = buffer.VertexCount / maxVertsPerDraw;
int remainder = buffer.VertexCount % maxVertsPerDraw;
int offset = 0;
for (int i = 0; i < passes; i++)
{
device.DrawPrimitives(primType, offset, maxVertsPerDraw / numVertsPerPrimitive(primType));
offset += maxVertsPerDraw;
}
device.DrawPrimitives(primType, offset, remainder / numVertsPerPrimitive(primType));
}