private void SampleGraphicsControl_GraphicsContextCreated(object sender, GraphicsControlEventArgs e)
{
GraphicsContext ctx = e.Context;
GraphicsSurface framebuffer = e.Framebuffer;
// Create Newton program
_NewtonProgram = ShadersLibrary.Instance.CreateProgram("Newton");
_NewtonProgram.AddFeedbackVarying("hal_VertexPosition");
_NewtonProgram.AddFeedbackVarying("hal_VertexSpeed");
_NewtonProgram.AddFeedbackVarying("hal_VertexAcceleration");
_NewtonProgram.AddFeedbackVarying("hal_VertexMass");
_NewtonProgram.Create(ctx);
// Initialize first vertex array
NewtonVertex[] newtonArray = new NewtonVertex[VertexCount];
Random random = new Random();
for (int i = 0; i < newtonArray.Length; i++)
{
NewtonVertex newtonVertex = new NewtonVertex();
newtonVertex.Position = new Vertex3f(RandomNormalized(), RandomNormalized(), RandomNormalized());
newtonVertex.Speed = new Vertex3f(RandomNormalized(), RandomNormalized(), RandomNormalized());
newtonVertex.Acceleration = new Vertex3f();
newtonVertex.Mass = RandomNormalized();
newtonArray[i] = newtonVertex;
}
// Create vertex arrays
ArrayBufferObjectBase newtonVertexArrayBuffer1, newtonVertexArrayBuffer2;
_NewtonVertexArray1 = CreateVertexArray(newtonArray, out newtonVertexArrayBuffer1);
_NewtonVertexArray2 = CreateVertexArray(null, out newtonVertexArrayBuffer2);
_NewtonVertexArray1.SetTransformFeedback(CreateFeedbackBuffer(newtonVertexArrayBuffer2));
_NewtonVertexArray2.SetTransformFeedback(CreateFeedbackBuffer(newtonVertexArrayBuffer1));
_NewtonVertexArray1.Create(ctx);
_NewtonVertexArray2.Create(ctx);
// Starts from initialized buffer
_NewtonVertexArray = _NewtonVertexArray1;
// Clear color
framebuffer.SetClearColor(new ColorRGBAF(0.0f, 0.0f, 0.0f));
}
private void SampleGraphicsControl_GraphicsContextCreated(object sender, GraphicsControlEventArgs e)
{
GraphicsContext ctx = e.Context;
GraphicsSurface framebuffer = e.Framebuffer;
// Create Newton program
_NewtonProgram = ShadersLibrary.Instance.CreateProgram("Newton");
_NewtonProgram.AddFeedbackVarying("hal_VertexPosition");
_NewtonProgram.AddFeedbackVarying("hal_VertexSpeed");
_NewtonProgram.AddFeedbackVarying("hal_VertexAcceleration");
_NewtonProgram.AddFeedbackVarying("hal_VertexMass");
_NewtonProgram.Create(ctx);
// Initialize first vertex array
NewtonVertex[] newtonArray = new NewtonVertex[VertexCount];
Random random = new Random();
for (int i = 0; i < newtonArray.Length; i++) {
NewtonVertex newtonVertex = new NewtonVertex();
newtonVertex.Position = new Vertex3f(RandomNormalized(), RandomNormalized(), RandomNormalized());
newtonVertex.Speed = new Vertex3f(RandomNormalized(), RandomNormalized(), RandomNormalized());
newtonVertex.Acceleration = new Vertex3f();
newtonVertex.Mass = RandomNormalized();
newtonArray[i] = newtonVertex;
}
// Create vertex arrays
ArrayBufferObjectBase newtonVertexArrayBuffer1, newtonVertexArrayBuffer2;
_NewtonVertexArray1 = CreateVertexArray(newtonArray, out newtonVertexArrayBuffer1);
_NewtonVertexArray2 = CreateVertexArray(null, out newtonVertexArrayBuffer2);
_NewtonVertexArray1.SetTransformFeedback(CreateFeedbackBuffer(newtonVertexArrayBuffer2));
_NewtonVertexArray2.SetTransformFeedback(CreateFeedbackBuffer(newtonVertexArrayBuffer1));
_NewtonVertexArray1.Create(ctx);
_NewtonVertexArray2.Create(ctx);
// Starts from initialized buffer
_NewtonVertexArray = _NewtonVertexArray1;
// Clear color
framebuffer.SetClearColor(new ColorRGBAF(0.0f, 0.0f, 0.0f));
}
private VertexArrayObject CreateVertexArray(NewtonVertex[] array, out ArrayBufferObjectBase interleavedArrayBuffer)
{
VertexArrayObject newtonVertexArray = new VertexArrayObject();
ArrayBufferObjectInterleaved newtonVertexArrayBuffer = new ArrayBufferObjectInterleaved(typeof(NewtonVertex), BufferObjectHint.DynamicGpuDraw);
if (array != null)
newtonVertexArrayBuffer.Create(array);
else
newtonVertexArrayBuffer.Create(VertexCount);
newtonVertexArray.SetArray(newtonVertexArrayBuffer, 0, VertexArraySemantic.Position);
newtonVertexArray.SetArray(newtonVertexArrayBuffer, 1, VertexArraySemantic.Speed);
newtonVertexArray.SetArray(newtonVertexArrayBuffer, 2, VertexArraySemantic.Acceleration);
newtonVertexArray.SetArray(newtonVertexArrayBuffer, 3, VertexArraySemantic.Mass);
newtonVertexArray.SetElementArray(PrimitiveType.Points);
interleavedArrayBuffer = newtonVertexArrayBuffer;
return (newtonVertexArray);
}
