private void Update(EvaluationContext context)
{
SharpDX.Matrix camToWorld = context.WorldToCamera;
camToWorld.Invert();
var pos = SharpDX.Vector4.Transform(new SharpDX.Vector4(0f, 0f, 0f, 1f), camToWorld);
Position.Value = new Vector3(pos.X, pos.Y, pos.Z);
var dir = SharpDX.Vector4.Transform(new SharpDX.Vector4(0f, 0f, 1f, 1f), camToWorld) - pos;
Direction.Value = new Vector3(dir.X, dir.Y, dir.Z);
float aspect = context.CameraToClipSpace.M22 / context.CameraToClipSpace.M11;
AspectRatio.Value = aspect;
Position.DirtyFlag.Clear();
Direction.DirtyFlag.Clear();
AspectRatio.DirtyFlag.Clear();
}
/// <summary>
/// Returns a render view matrix for Direct3D.
/// </summary>
internal void GetViewMatrix(out DxMatrix4 result)
{
var m = (DxMatrix4)this;
DxMatrix4.Invert(ref m, out result);
}
// ** Begin
public static void DrawMPC3D(RenderContext11 renderContext, float opacity, Vector3d centerPoint)
{
double zoom = Earth3d.MainWindow.ZoomFactor;
double distAlpha = ((Math.Log(Math.Max(1, zoom), 4)) - 15.5) * 90;
int alpha = Math.Min(255, Math.Max(0, (int)distAlpha));
if (alpha > 254)
{
return;
}
if (mpcVertexBuffer == null)
{
for (int i = 0; i < 7; i++)
{
mpcBlendStates[i] = new BlendState(false, 1000, 0);
}
if (!initBegun)
{
MethodInvoker initDelegate = new MethodInvoker(StartInit);
initDelegate.BeginInvoke(null, null);
initBegun = true;
}
return;
}
renderContext.DepthStencilMode = DepthStencilMode.Off;
renderContext.setRasterizerState(TriangleCullMode.Off);
Matrix3d offset = Matrix3d.Translation(-centerPoint);
Matrix3d world = renderContext.World * offset;
Matrix matrixWVP = (world * renderContext.View * renderContext.Projection).Matrix11;
matrixWVP.Transpose();
Vector3 cam = Vector3.TransformCoordinate(renderContext.CameraPosition.Vector311, Matrix.Invert(renderContext.World.Matrix11));
renderContext.Device.ImmediateContext.PixelShader.SetShaderResource(0, Grids.StarProfile.ResourceView);
renderContext.BlendMode = BlendMode.Additive;
if (mpcVertexBuffer != null)
{
for (int i = 0; i < 7; i++)
{
mpcBlendStates[i].TargetState = ((Properties.Settings.Default.MinorPlanetsFilter & (int)Math.Pow(2, i)) != 0);
if (mpcBlendStates[i].State)
{
if (mpcVertexBuffer[i].Downlevel)
{
DownlevelKeplerPointSpriteShader11.Constants.JNow = (float)(SpaceTimeController.JNow - KeplerVertex.baseDate);
DownlevelKeplerPointSpriteShader11.Constants.Opacity = opacity * mpcBlendStates[i].Opacity;
DownlevelKeplerPointSpriteShader11.Constants.MM = 0;
DownlevelKeplerPointSpriteShader11.Constants.WorldViewProjection = matrixWVP;
DownlevelKeplerPointSpriteShader11.Constants.Scale = new SharpDX.Vector2(100f, 100f);
DownlevelKeplerPointSpriteShader11.Constants.ViewportScale = new SharpDX.Vector2(2f / renderContext.ViewPort.Width, 2f / renderContext.ViewPort.Height);
DownlevelKeplerPointSpriteShader11.Constants.CameraPosition = new SharpDX.Vector4(cam, 1);
DownlevelKeplerPointSpriteShader11.Use(renderContext.devContext, mpcVertexBuffer[i].Instanced);
}
else
{
KeplerPointSpriteShader11.Constants.JNow = (float)(SpaceTimeController.JNow - KeplerVertex.baseDate);
KeplerPointSpriteShader11.Constants.Opacity = opacity * mpcBlendStates[i].Opacity;
KeplerPointSpriteShader11.Constants.MM = 0;
KeplerPointSpriteShader11.Constants.WorldViewProjection = matrixWVP;
KeplerPointSpriteShader11.Constants.Scale = new SharpDX.Vector2(100f, 100f);
KeplerPointSpriteShader11.Constants.ViewportScale = new SharpDX.Vector2(2f / renderContext.ViewPort.Width, 2 / renderContext.ViewPort.Height);
KeplerPointSpriteShader11.Constants.CameraPosition = new SharpDX.Vector4(cam, 1);
KeplerPointSpriteShader11.Use(renderContext.devContext);
}
mpcVertexBuffer[i].Draw(renderContext, mpcVertexBuffer[i].Count, null, opacity);
}
}
}
renderContext.BlendMode = BlendMode.Alpha;
renderContext.Device.ImmediateContext.GeometryShader.Set(null);
}