public void Render(DrawArgs drawArgs)
{
try
{
if (m_meshList.Count > 0 && ((!World.Settings.ForceCpuAtmosphere && m_canDoShaders) || m_opticalDepthBuffer1 != null))
{
double horizonSpan = HorizonSpan(drawArgs);
if (horizonSpan == 0) return; // Check if horizon visible (PM 2006-11-28)
if (skyFromSpaceEffect == null)
{
drawArgs.device.DeviceReset += new EventHandler(device_DeviceReset);
device_DeviceReset(drawArgs.device, null);
}
vCamera.X = drawArgs.WorldCamera.Position.X;
vCamera.Y = drawArgs.WorldCamera.Position.Y;
vCamera.Z = drawArgs.WorldCamera.Position.Z;
drawArgs.device.VertexFormat = CustomVertex.PositionColored.Format;
drawArgs.device.TextureState[0].ColorOperation = TextureOperation.Disable;
if (drawArgs.device.RenderState.Lighting)
drawArgs.device.RenderState.Lighting = false;
drawArgs.device.Transform.World = Matrix.Translation(
(float)-drawArgs.WorldCamera.ReferenceCenter.X,
(float)-drawArgs.WorldCamera.ReferenceCenter.Y,
(float)-drawArgs.WorldCamera.ReferenceCenter.Z
);
bool doHighResolution = (drawArgs.WorldCamera.Altitude < 300000);
Frustum frustum = new Frustum();
frustum.Update(
Matrix.Multiply(drawArgs.device.Transform.World,
Matrix.Multiply(drawArgs.device.Transform.View, drawArgs.device.Transform.Projection)));
if (!World.Settings.ForceCpuAtmosphere && m_canDoShaders)
{
Effect shader = null;
// Update Sun
UpdateLightVector();
if (vCamera.Length() >= m_fOuterRadius)
shader = skyFromSpaceEffect;
else
shader = skyFromAtmosphere;
shader.Technique = "Sky";
shader.SetValue("v3CameraPos", new Vector4(vCamera.X, vCamera.Y, vCamera.Z, 0));
shader.SetValue("v3LightPos", Vector4.Normalize(new Vector4(m_vLightDirection.X, m_vLightDirection.Y, m_vLightDirection.Z, 0)));
shader.SetValue("WorldViewProj", Matrix.Multiply(drawArgs.device.Transform.World, Matrix.Multiply(drawArgs.device.Transform.View, drawArgs.device.Transform.Projection)));
shader.SetValue("v3InvWavelength", new Vector4(1.0f / m_fWavelength4[0], 1.0f / m_fWavelength4[1], 1.0f / m_fWavelength4[2], 0));
shader.SetValue("fCameraHeight", vCamera.Length());
shader.SetValue("fCameraHeight2", vCamera.LengthSq());
shader.SetValue("fInnerRadius", m_fInnerRadius);
shader.SetValue("fInnerRadius2", m_fInnerRadius * m_fInnerRadius);
shader.SetValue("fOuterRadius", m_fOuterRadius);
shader.SetValue("fOuterRadius2", m_fOuterRadius * m_fOuterRadius);
shader.SetValue("fKrESun", m_Kr * m_ESun);
shader.SetValue("fKmESun", m_Km * m_ESun);
shader.SetValue("fKr4PI", m_Kr4PI);
shader.SetValue("fKm4PI", m_Km4PI);
shader.SetValue("fScale", 1.0f / (m_fOuterRadius - m_fInnerRadius));
shader.SetValue("fScaleDepth", m_fRayleighScaleDepth);
shader.SetValue("fScaleOverScaleDepth", (1.0f / (m_fOuterRadius - m_fInnerRadius)) / m_fRayleighScaleDepth);
shader.SetValue("g", m_g);
shader.SetValue("g2", m_g * m_g);
shader.SetValue("nSamples", m_nSamples);
shader.SetValue("fSamples", m_nSamples);
for (int i = 0; i < m_meshList.Count; i++)
{
if (!frustum.Intersects(m_meshList[i].BoundingBox))
continue;
int numPasses = shader.Begin(0);
for (int j = 0; j < numPasses; j++)
{
shader.BeginPass(j);
if (doHighResolution)
drawArgs.device.DrawIndexedUserPrimitives(PrimitiveType.TriangleList, 0, m_meshList[i].HigherResolutionVertices.Length, m_indicesHighResolution.Length / 3, m_indicesHighResolution, true, m_meshList[i].HigherResolutionVertices);
else
drawArgs.device.DrawIndexedUserPrimitives(PrimitiveType.TriangleList, 0, m_meshList[i].Vertices.Length, m_indices.Length / 3, m_indices, true, m_meshList[i].Vertices);
shader.EndPass();
}
shader.End();
}
}
else
{
/*for (int i = 0; i < m_meshList.Count; i++)
{
if (!frustum.Intersects(m_meshList[i].BoundingBox))
continue;
UpdateColor(drawArgs, m_meshList[i], doHighResolution);
if (doHighResolution)
drawArgs.device.DrawIndexedUserPrimitives(PrimitiveType.TriangleList, 0, m_meshList[i].HigherResolutionVertices.Length, m_indicesHighResolution.Length / 3, m_indicesHighResolution, true, m_meshList[i].HigherResolutionVertices);
else
drawArgs.device.DrawIndexedUserPrimitives(PrimitiveType.TriangleList, 0, m_meshList[i].Vertices.Length, m_indices.Length / 3, m_indices, true, m_meshList[i].Vertices);
} */
// Update Sun
UpdateLightVector();
// Use SkyGradient geometry
UpdateSkyMesh(drawArgs, horizonSpan);
drawArgs.device.RenderState.CullMode = Cull.Clockwise;
skyMesh.DrawSubset(0);
}
drawArgs.device.Transform.World = drawArgs.WorldCamera.WorldMatrix;
}
}
catch (Exception ex)
{
Log.Write(ex);
}
}
private void RenderSun(DrawArgs drawArgs)
{
Point3d sunPosition = -SunCalculator.GetGeocentricPosition(TimeKeeper.CurrentTimeUtc);
Point3d sunSpherical = MathEngine.CartesianToSphericalD(sunPosition.X, sunPosition.Y, sunPosition.Z);
sunPosition = MathEngine.SphericalToCartesianD(
Angle.FromRadians(sunSpherical.Y),
Angle.FromRadians(sunSpherical.Z),
150000000000);
Vector3 sunVector = new Vector3((float)sunPosition.X, (float)sunPosition.Y, (float)sunPosition.Z);
Frustum viewFrustum = new Frustum();
float aspectRatio = (float)drawArgs.WorldCamera.Viewport.Width / drawArgs.WorldCamera.Viewport.Height;
Matrix projectionMatrix = Matrix.PerspectiveFovRH((float)drawArgs.WorldCamera.Fov.Radians, aspectRatio, 1.0f, 300000000000);
viewFrustum.Update(
Matrix.Multiply(drawArgs.WorldCamera.AbsoluteWorldMatrix,
Matrix.Multiply(drawArgs.WorldCamera.AbsoluteViewMatrix,
projectionMatrix)));
if (!viewFrustum.ContainsPoint(sunVector))
return;
Vector3 translationVector = new Vector3(
(float)(sunPosition.X - drawArgs.WorldCamera.ReferenceCenter.X),
(float)(sunPosition.Y - drawArgs.WorldCamera.ReferenceCenter.Y),
(float)(sunPosition.Z - drawArgs.WorldCamera.ReferenceCenter.Z));
Vector3 projectedPoint = drawArgs.WorldCamera.Project(translationVector);
if (m_sunTexture == null)
{
m_sunTexture = ImageHelper.LoadTexture(Path.GetDirectoryName(System.Windows.Forms.Application.ExecutablePath) + "\\Data\\sun.dds");
m_sunSurfaceDescription = m_sunTexture.GetLevelDescription(0);
}
if (m_sprite == null)
{
m_sprite = new Sprite(drawArgs.device);
}
m_sprite.Begin(SpriteFlags.AlphaBlend);
// Render icon
float xscale = (float)m_sunWidth / m_sunSurfaceDescription.Width;
float yscale = (float)m_sunHeight / m_sunSurfaceDescription.Height;
m_sprite.Transform = Matrix.Scaling(xscale, yscale, 0);
m_sprite.Transform *= Matrix.Translation(projectedPoint.X, projectedPoint.Y, 0);
m_sprite.Draw(m_sunTexture,
new Vector3(m_sunSurfaceDescription.Width >> 1, m_sunSurfaceDescription.Height >> 1, 0),
Vector3.Empty,
System.Drawing.Color.FromArgb(253, 253, 200).ToArgb());
// Reset transform to prepare for text rendering later
m_sprite.Transform = Matrix.Identity;
m_sprite.End();
}
internal void Render(DrawArgs drawArgs)
{
try
{
if (m_meshList.Count > 0 && m_opticalDepthBuffer1 != null)
{
double horizonSpan = HorizonSpan(drawArgs);
if (horizonSpan == 0) return; // Check if horizon visible (PM 2006-11-28)
if (skyFromSpaceEffect == null)
{
drawArgs.device.DeviceReset += new EventHandler(device_DeviceReset);
device_DeviceReset(drawArgs.device, null);
}
vCamera.X = (float)drawArgs.WorldCamera.Position.X;
vCamera.Y = (float)drawArgs.WorldCamera.Position.Y;
vCamera.Z = (float)drawArgs.WorldCamera.Position.Z;
drawArgs.device.VertexFormat = CustomVertex.PositionColored.Format;
drawArgs.device.TextureState[0].ColorOperation = TextureOperation.Disable;
if (drawArgs.device.RenderState.Lighting)
drawArgs.device.RenderState.Lighting = false;
drawArgs.device.Transform.World = Matrix.Translation(
(float)-drawArgs.WorldCamera.ReferenceCenter.X,
(float)-drawArgs.WorldCamera.ReferenceCenter.Y,
(float)-drawArgs.WorldCamera.ReferenceCenter.Z
);
Frustum frustum = new Frustum();
frustum.Update(
Matrix4d.Multiply(ConvertDX.ToMatrix4d(drawArgs.device.Transform.World),
Matrix4d.Multiply(ConvertDX.ToMatrix4d(drawArgs.device.Transform.View), ConvertDX.ToMatrix4d(drawArgs.device.Transform.Projection))));
// Update Sun
UpdateLightVector();
// Use SkyGradient geometry
UpdateSkyMesh(drawArgs, horizonSpan);
drawArgs.device.RenderState.CullMode = Cull.Clockwise;
skyMesh.DrawSubset(0);
drawArgs.device.Transform.World = ConvertDX.FromMatrix4d(drawArgs.WorldCamera.WorldMatrix);
}
}
catch (Exception ex)
{
Log.Write(ex);
}
}