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IndexBuffer Class

Describes the rendering order of the vertices in a vertex buffer.

Namespace: Microsoft.Xna.Framework.Graphics
Assembly: Microsoft.Xna.Framework.Graphics (in microsoft.xna.framework.graphics.dll)

public class IndexBuffer : GraphicsResource

The vertex buffer and index data of the graphics device must be set before any call to DrawIndexedPrimitives. The following example sets the index data and vertex buffer.

VertexBuffer  vertexBuffer = new VertexBuffer(GraphicsDevice, typeof(VertexPositionColor), 8, BufferUsage.None);

vertexBuffer.SetData<VertexPositionColor>(primitiveList);

IndexBuffer  lineListIndexBuffer = new IndexBuffer(
    GraphicsDevice,
    IndexElementSize.SixteenBits,
    sizeof(short) * lineListIndices.Length,
    BufferUsage.None);

lineListIndexBuffer.SetData<short>(lineListIndices);

GraphicsDevice.Indices = lineListIndexBuffer;
GraphicsDevice.SetVertexBuffer(vertexBuffer);
GraphicsDevice.DrawIndexedPrimitives(PrimitiveType.LineList, 0, 0, 8, 0, 7);
Xbox 360, Windows 7, Windows Vista, Windows XP

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