private PrimitiveObject GetTexturedPyramidSquare(GraphicsDevice graphics, ShapeType shapeType, EffectParameters effectParameters)
{
//get the vertices
VertexPositionColorTexture[] vertices = PrimitiveUtility.GetTexturedPyramidSquare(out primitiveType, out primitiveCount);
vertexData = new BufferedVertexData <VertexPositionColorTexture>(graphics, vertices, primitiveType, primitiveCount);
//instanciate the object and return a reference
return(GetPrimitiveObjectFromVertexData(vertexData, shapeType, effectParameters));
}
private PrimitiveObject GetNormalTexturedCube(GraphicsDevice graphics, ShapeType shapeType, EffectParameters effectParameters)
{
//get the vertices
VertexPositionNormalTexture[] vertices = PrimitiveUtility.GetNormalTexturedCube(out primitiveType, out primitiveCount);
//create the buffered data using indexed since it will reduce the number of vertices required from 36 - 12 - see GetTexturedCube() comment
vertexData = new IndexedBufferedVertexData <VertexPositionNormalTexture>(graphics, vertices, primitiveType, primitiveCount);
//instanciate the object and return a reference
return(GetPrimitiveObjectFromVertexData(vertexData, shapeType, effectParameters));
}
private PrimitiveObject GetWireframeSpiral(GraphicsDevice graphics, ShapeType shapeType, EffectParameters effectParameters)
{
//get the vertices
VertexPositionColor[] vertices = PrimitiveUtility.GetWireframeSpiral(15, 1, out primitiveType, out primitiveCount);
//create the buffered data
vertexData = new BufferedVertexData <VertexPositionColor>(graphics, vertices, primitiveType, primitiveCount);
//instanciate the object and return a reference
return(GetPrimitiveObjectFromVertexData(vertexData, shapeType, effectParameters));
}
private PrimitiveObject GetColoredQuad(GraphicsDevice graphics, ShapeType shapeType, EffectParameters effectParameters)
{
//vertex colors for the quad
Color[] vertexColorArray = { Color.Red, Color.Green, Color.Blue, Color.Orange };
//get the vertices
VertexPositionColor[] vertices = PrimitiveUtility.GetColoredQuad(vertexColorArray, out primitiveType, out primitiveCount);
//create the buffered data
vertexData = new BufferedVertexData <VertexPositionColor>(graphics, vertices, primitiveType, primitiveCount);
//instanciate the object and return a reference
return(GetPrimitiveObjectFromVertexData(vertexData, shapeType, effectParameters));
}
private PrimitiveObject GetTexturedCube(GraphicsDevice graphics, ShapeType shapeType, EffectParameters effectParameters)
{
//get the vertices
VertexPositionColorTexture[] vertices = PrimitiveUtility.GetTexturedCube(out primitiveType, out primitiveCount);
/*
* Remember we saw in PrimitiveUtility.GetTexturedCube() that we were using too many vertices?
* We can use IndexedBufferedVertexData to now reduce the 36 vertices to 12.
*
* Notice however that we are STILL using TriangleList as our PrimitiveType. The optimal solution is to use an IndexedBufferedVertexData object where you define the indices and vertices
* and also choose TriangleStrip or LineStrip as your PrimitiveType.
*/
vertexData = new IndexedBufferedVertexData <VertexPositionColorTexture>(graphics, vertices, primitiveType, primitiveCount);
//instanciate the object and return a reference
return(GetPrimitiveObjectFromVertexData(vertexData, shapeType, effectParameters));
}
