private void DrawSphere(Sphere sphere)
{
// get frustum camera position in planet space
Camera frustumCamera = cameraManager.ActiveFrustumCamera;
Position3 frustumCameraPosition = frustumCamera.Position - sphere.Position;
// update sphere, allowing it to split
sphere.Update(frustumCameraPosition, MathHelper.ToRadians(frustumCamera.FieldOfView));
//GraphicsDevice.VertexDeclaration = positionNormalTextureHeight;
GraphicsDevice.DepthStencilState = DepthStencilState.Default;
GraphicsDevice.BlendState = BlendState.Opaque;
GraphicsDevice.RasterizerState = currentRasterizerState;
CalculateProjection(sphere);
Camera camera = mainCamera;
// get frustum camera position in planet space
Position3 cameraPosition = camera.Position - sphere.Position;
// calculate horizon angle, using camera position in planet space
float horizonAngle = sphere.CalculateHorizonAngle(cameraPosition);
Globals.DrawLevel = 0;
Globals.DrawCount = 0;
Globals.HorizonCullCount = 0;
Globals.FrustumCullCount = 0;
DrawTerrainNode(sphere.Front, cameraPosition, horizonAngle, sphere, camera);
DrawTerrainNode(sphere.Back, cameraPosition, horizonAngle, sphere, camera);
DrawTerrainNode(sphere.Left, cameraPosition, horizonAngle, sphere, camera);
DrawTerrainNode(sphere.Right, cameraPosition, horizonAngle, sphere, camera);
DrawTerrainNode(sphere.Top, cameraPosition, horizonAngle, sphere, camera);
DrawTerrainNode(sphere.Bottom, cameraPosition, horizonAngle, sphere, camera);
}
private void DrawAtmosphere(Sphere sphere)
{
// get frustum camera position in planet space
Camera frustumCamera = cameraManager.ActiveFrustumCamera;
Position3 frustumCameraPosition = frustumCamera.Position - sphere.Position;
// update sphere, allowing it to split
sphere.Update(frustumCameraPosition, MathHelper.ToRadians(frustumCamera.FieldOfView));
if (fillMode == FillMode.Solid)
GraphicsDevice.RasterizerState = CullClockwiseSolid;
else
GraphicsDevice.RasterizerState = CullClockwiseWireFrame;
GraphicsDevice.DepthStencilState = DepthNoWrite;
GraphicsDevice.BlendState = BlendState.NonPremultiplied;
//CalculateProjection(sphere);
Camera camera = mainCamera;
// get frustum camera position in planet space
Position3 cameraPosition = camera.Position - sphere.Position;
// calculate horizon angle, using camera position in planet space
float horizonAngle = sphere.CalculateHorizonAngle(cameraPosition);
Globals.DrawLevel = 0;
Globals.DrawCount = 0;
Globals.HorizonCullCount = 0;
Globals.FrustumCullCount = 0;
DrawAtmosphereNode(sphere.Front, cameraPosition, horizonAngle, sphere, camera);
DrawAtmosphereNode(sphere.Back, cameraPosition, horizonAngle, sphere, camera);
DrawAtmosphereNode(sphere.Left, cameraPosition, horizonAngle, sphere, camera);
DrawAtmosphereNode(sphere.Right, cameraPosition, horizonAngle, sphere, camera);
DrawAtmosphereNode(sphere.Top, cameraPosition, horizonAngle, sphere, camera);
DrawAtmosphereNode(sphere.Bottom, cameraPosition, horizonAngle, sphere, camera);
}