protected void TriangleContext(Pointdata a, Pointdata b, Pointdata c)
{
//clear history
if (Vertices != null)
{
Vertices.Dispose();
Layout.Dispose();
Vertexbuffer.Dispose();
}
Vertices = new DataStream(12 * 3, true, true);
Vertices.Write(new Vector3(a.x, a.y, a.z));
Vertices.Write(new Vector3(b.x, b.y, b.z));
Vertices.Write(new Vector3(c.x, c.y, c.z));
Vertices.Position = 0;
// create the vertex layout and buffer
var elements = new[] { new InputElement("POSITION", 0, Format.R32G32B32_Float, 0) };
Layout = new InputLayout(_device, InputSignature, elements);
Vertexbuffer = new Buffer(_device, Vertices, 12 * 3, ResourceUsage.Default, BindFlags.VertexBuffer,
CpuAccessFlags.None, ResourceOptionFlags.None, 0);
// configure the Input Assembler portion of the pipeline with the vertex data
Devicecontext.InputAssembler.InputLayout = Layout;
Devicecontext.InputAssembler.PrimitiveTopology = PrimitiveTopology.TriangleList;
Devicecontext.InputAssembler.SetVertexBuffers(0, new VertexBufferBinding(Vertexbuffer, 12, 0));
// set the shaders
Devicecontext.VertexShader.Set(Vertexshader);
Devicecontext.PixelShader.Set(Pixelshader);
// draw the triangle
Devicecontext.Draw(3, 0);
}
public void Cleancanvas()
{
// clear the render target to a soothing white
Devicecontext.ClearRenderTargetView(Rendertarget, color4);
}