/// <summary>Draws a batch of indexed primitives</summary>
/// <param name="startVertex">
/// Index of the first vertex in the vertex array. This vertex will become
/// the new index 0 for the index buffer.
/// </param>
/// <param name="vertexCount">Number of vertices used in the call</param>
/// <param name="startIndex">
/// Position at which to begin processing the index array
/// </param>
/// <param name="indexCount">Number of indices that will be processed</param>
/// <param name="type">Type of primitives to draw</param>
/// <param name="context">Desired graphics device settings for the primitives</param>
public void Draw(
int startVertex, int vertexCount,
int startIndex, int indexCount,
PrimitiveType type, DrawContext context
)
{
int primitiveCount = VertexHelper.GetPrimitiveCount(indexCount, type);
// If the DrawContext requires more than one pass, we have to draw the
// primitives multiple times
for (int pass = 0; pass < context.Passes; ++pass)
{
// Enter the effect pass and send all primitives to the graphics card
context.Apply(pass);
this.graphicsDevice.DrawUserIndexedPrimitives <VertexType>(
type, // type of primitives to render
this.vertices, // vertex array
startVertex, // offset that will be added to all vertex indices
vertexCount, // number of vertices used in the call
this.indices, // index array
startIndex, // where in the index array to begin processing
primitiveCount // number of primitives
);
} // for
}
/// <summary>Draws a batch of indexed primitives</summary>
/// <param name="startVertex">
/// Index of the first vertex in the vertex array. This vertex will become
/// the new index 0 for the index buffer.
/// </param>
/// <param name="vertexCount">Number of vertices used in the call</param>
/// <param name="startIndex">
/// Position at which to begin processing the index array
/// </param>
/// <param name="indexCount">Number of indices that will be processed</param>
/// <param name="type">Type of primitives to draw</param>
/// <param name="context">Desired graphics device settings for the primitives</param>
public void Draw(
int startVertex, int vertexCount,
int startIndex, int indexCount,
PrimitiveType type, DrawContext context
)
{
startIndex += PrimitiveBatch <VertexType> .BatchSize * this.currentDivisionIndex;
int primitiveCount = VertexHelper.GetPrimitiveCount(indexCount, type);
// If the DrawContext requires more than one pass, we have to draw the
// primitives multiple times
for (int pass = 0; pass < context.Passes; ++pass)
{
// Enter the pass and send all primitives to the graphics card
context.Apply(pass);
this.graphicsDevice.DrawIndexedPrimitives(
type, // type of primitives to render
startVertex, // offset that will be added to all vertex indices
0, // lowest vertex used in the call (relative to previous parameter)
vertexCount, // number of vertices used in the call
startIndex, // where in the index array to begin processing
primitiveCount // number of primitives
);
} // for
}
/// <summary>Draws a batch of primitives</summary>
/// <param name="startVertex">Index of vertex to begin drawing with</param>
/// <param name="vertexCount">Number of vertices used</param>
/// <param name="type">Type of primitives that will be drawn</param>
/// <param name="context">Desired graphics device settings for the primitives</param>
public void Draw(
int startVertex, int vertexCount,
PrimitiveType type, DrawContext context
)
{
#if XNA_4
int primitiveCount = VertexHelper.GetPrimitiveCount(vertexCount, type);
// If the DrawContext requires more than one pass, we have to draw the
// primitives multiple times
for (int pass = 0; pass < context.Passes; ++pass)
{
// Enter the effect pass and send all primitives to the graphics card
context.Apply(pass);
this.graphicsDevice.DrawUserPrimitives <VertexType>(
type, // type of primitives to render
this.vertices, // vertex array
startVertex, // where in the vertex array to begin processing
primitiveCount // number of primitives
);
} // for
#else
context.Begin();
try {
int primitiveCount = VertexHelper.GetPrimitiveCount(vertexCount, type);
// If the DrawContext requires more than one pass, we have to draw the
// primitives multiple times
for (int pass = 0; pass < context.Passes; ++pass)
{
// Enter the pass and send all primitives to the graphics card
context.BeginPass(pass);
try {
this.graphicsDevice.DrawUserPrimitives <VertexType>(
type, // type of primitives to render
this.vertices, // vertex array
startVertex, // where in the vertex array to begin processing
primitiveCount // number of primitives
);
}
finally {
context.EndPass();
}
} // for
}
finally {
context.End();
}
#endif
}
/// <summary>Draws a batch of primitives</summary>
/// <param name="startVertex">Index of vertex to begin drawing with</param>
/// <param name="vertexCount">Number of vertices used</param>
/// <param name="type">Type of primitives that will be drawn</param>
/// <param name="context">Desired graphics device settings for the primitives</param>
public void Draw(
int startVertex, int vertexCount,
PrimitiveType type, DrawContext context
)
{
#if XNA_4
int primitiveCount = VertexHelper.GetPrimitiveCount(vertexCount, type);
// If the DrawContext requires more than one pass, we have to draw the
// primitives multiple times
for (int pass = 0; pass < context.Passes; ++pass)
{
// Enter the pass and send all primitives to the graphics card
context.Apply(pass);
this.graphicsDevice.DrawPrimitives(
type, // type of primitives to render
startVertex, // offset that will be added to all vertex indices
primitiveCount // number of primitives being drawn
);
} // for
#else
context.Begin();
try {
int primitiveCount = VertexHelper.GetPrimitiveCount(vertexCount, type);
// If the DrawContext requires more than one pass, we have to draw the
// primitives multiple times
for (int pass = 0; pass < context.Passes; ++pass)
{
// Enter the pass and send all primitives to the graphics card
context.BeginPass(pass);
try {
this.graphicsDevice.DrawPrimitives(
type, // type of primitives to render
startVertex, // offset that will be added to all vertex indices
primitiveCount // number of primitives being drawn
);
}
finally {
context.EndPass();
}
} // for
}
finally {
context.End();
}
#endif
}