Drawing range of vertex array using DrawUserPrimitives

[m***@gmail.com]

Hi,

is it possible to render using DrawUserPrimitives starting from non 0
array index?

for example, below code renders all data from array vdata:

CustomVertex.PositionNormalColored vdata = new
CustomVertex.PositionNormalColored[30];
dev.DrawUserPrimitives(PrimitiveType.TriangleList, vdata.Length,
vdata);

but suppose I would like to render only second half:

CustomVertex.PositionNormalColored vdata = new
CustomVertex.PositionNormalColored[30];
dev.DrawUserPrimitives(PrimitiveType.TriangleList, vdata.Length/2,
&vdata[15]); //<- Wrong!

How to refere to second array half without creating new array?

Martin

[legalize+ (Richard [Microsoft Direct3D MVP])]

[Please do not mail me a copy of your followup]

Post by m***@gmail.com
is it possible to render using DrawUserPrimitives starting from non 0
array index?

Use a vertex buffer (and possibly an index buffer) instead.