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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)

Syntax

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public class IndexBuffer : GraphicsResource

Example

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.

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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);

Reference

IndexBuffer Members
Indices
DrawUserIndexedPrimitives
Microsoft.Xna.Framework.Graphics Namespace

Platforms

Xbox 360, Windows 7, Windows Vista, Windows XP

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