// Build a shader for all supported feature levels and save its
// bytecode to the shader library.
private static void saveToLibrary(PlanetShaderKey k)
{
var planetShader = new PlanetShader11(k);
foreach (var level in ShaderLibrary.ShaderLevels)
{
planetShader.BuildShader(level.vertexProfile, level.pixelProfile);
}
}
public static void CompileAndSaveShaders()
{
PlanetShaderKey k = new PlanetShaderKey(PlanetSurfaceStyle.Emissive, false, 0);
saveToLibrary(k);
k.textures = PlanetShaderKey.SurfaceProperty.Diffuse;
saveToLibrary(k);
for (int lightCount = 0; lightCount < 2; ++lightCount)
{
int maxShadows = Math.Min(lightCount, 1);
for (int shadowCount = 0; shadowCount < maxShadows; ++shadowCount)
{
for (int tex = 0; tex < 2; ++tex)
{
k.eclipseShadowCount = shadowCount;
k.lightCount = lightCount;
k.textures = tex == 0 ? PlanetShaderKey.SurfaceProperty.None : PlanetShaderKey.SurfaceProperty.Diffuse;
k.style = PlanetSurfaceStyle.Diffuse;
saveToLibrary(k);
k.style = PlanetSurfaceStyle.Sky;
saveToLibrary(k);
k.style = PlanetSurfaceStyle.Specular;
saveToLibrary(k);
k.style = PlanetSurfaceStyle.SpecularPass;
saveToLibrary(k);
k.style = PlanetSurfaceStyle.PlanetaryRings;
saveToLibrary(k);
k.style = PlanetSurfaceStyle.DiffuseAndNight;
saveToLibrary(k);
}
}
}
}
/// <summary>
/// Get the planet shader for the specified shader key. The shader is created
/// if it's not already in the shader library.
/// </summary>
/// <param name="device">Direct3D device</param>
/// <param name="key">Planet surface shader key</param>
/// <returns>A Direct3D shader to produce the requested effect.</returns>
public static PlanetShader11 GetPlanetShader(Device device, PlanetShaderKey key)
{
PlanetShader11 shader;
if (shaderLibrary == null || regenerateShaders)
{
shaderLibraryComparer = new PlanetShaderKeyComparer();
shaderLibrary = new Dictionary<PlanetShaderKey, PlanetShader11>(shaderLibraryComparer);
regenerateShaders = false;
}
// Retrieve the shader from the library of compiled shaders;
// if the shader isn't in the shader library, create it and
// add it.
if (!shaderLibrary.TryGetValue(key, out shader))
{
if (shader == null)
{
// Shader was not retrieved from the cache of precompiled shaders
shader = new PlanetShader11(key);
shader.BuildShader(RenderContext11.VertexProfile, RenderContext11.PixelProfile);
shader.Realize(device);
shaderLibrary[key] = shader;
}
}
return shader;
}
public void Render(RenderContext11 renderContext, float opacity)
{
if (dirty && !(ISSLayer))
{
Reload();
}
Matrix3d oldWorld = renderContext.World;
Vector3 offset = mesh.BoundingSphere.Center;
float unitScale = 1.0f;
if (mesh.BoundingSphere.Radius > 0.0f)
{
unitScale = 1.0f / mesh.BoundingSphere.Radius;
}
renderContext.World = Matrix3d.Translation(-offset.X, -offset.Y, -offset.Z) * Matrix3d.Scaling(unitScale, unitScale, unitScale) * oldWorld;
Matrix3d worldView = renderContext.World * renderContext.View;
Vector3d v = worldView.Transform(Vector3d.Empty);
double scaleFactor = Math.Sqrt(worldView.M11 * worldView.M11 + worldView.M22 * worldView.M22 + worldView.M33 * worldView.M33) / unitScale;
double dist = v.Length();
double radius = scaleFactor;
// Calculate pixelsPerUnit which is the number of pixels covered
// by an object 1 AU at the distance of the planet center from
// the camera. This calculation works regardless of the projection
// type.
int viewportHeight = (int)renderContext.ViewPort.Height;
double p11 = renderContext.Projection.M11;
double p34 = renderContext.Projection.M34;
double p44 = renderContext.Projection.M44;
double w = Math.Abs(p34) * dist + p44;
float pixelsPerUnit = (float)(p11 / w) * viewportHeight;
float radiusInPixels = (float)(radius * pixelsPerUnit);
if (radiusInPixels < 0.5f)
{
// Too small to be visible; skip rendering
return;
}
// These colors can be modified by shadows, distance from planet, etc. Restore
// the original values after rendering.
var savedSunlightColor = renderContext.SunlightColor;
var savedReflectedColor = renderContext.ReflectedLightColor;
var savedHemiColor = renderContext.HemisphereLightColor;
if (Properties.Settings.Default.SolarSystemLighting)
{
SetupLighting(renderContext);
renderContext.AmbientLightColor = System.Drawing.Color.FromArgb(11, 11, 11);
}
else
{
// No lighting: set ambient light to white and turn off all other light sources
renderContext.SunlightColor = System.Drawing.Color.Black;
renderContext.ReflectedLightColor = System.Drawing.Color.Black;
renderContext.HemisphereLightColor = System.Drawing.Color.Black;
renderContext.AmbientLightColor = System.Drawing.Color.White;
}
SharpDX.Direct3D11.Device device = renderContext.Device;
if (mesh == null)
{
return;
}
//Object3dLayer.sketch.DrawLines(renderContext, 1.0f, System.Drawing.Color.Red);
renderContext.DepthStencilMode = DepthStencilMode.ZReadWrite;
renderContext.BlendMode = BlendMode.Alpha;
int count = meshMaterials.Count;
mesh.beginDrawing(renderContext);
if (count > 0)
{
for (int i = 0; i < meshMaterials.Count; i++)
{
if (meshMaterials[i].Default)
{
Material mat = meshMaterials[i];
mat.Diffuse = Color;
mat.Ambient = Color;
meshMaterials[i] = mat;
}
// Set the material and texture for this subset
renderContext.SetMaterial(meshMaterials[i], meshTextures[i], meshSpecularTextures[i], meshNormalMaps[i], opacity);
renderContext.PreDraw();
renderContext.setSamplerState(0, renderContext.WrapSampler);
mesh.drawSubset(renderContext, i);
}
}
else
{
renderContext.PreDraw();
for (int i = 0; i < meshTextures.Count; i++)
{
var key = new PlanetShaderKey(PlanetSurfaceStyle.Diffuse, false, 0);
renderContext.SetupPlanetSurfaceEffect(key, 1.0f);
if (meshTextures[i] != null)
{
renderContext.MainTexture = meshTextures[i];
}
renderContext.PreDraw();
mesh.drawSubset(renderContext, i);
}
}
renderContext.setSamplerState(0, renderContext.ClampSampler);
renderContext.setRasterizerState(TriangleCullMode.CullClockwise);
renderContext.World = oldWorld;
renderContext.SunlightColor = savedSunlightColor;
renderContext.ReflectedLightColor = savedReflectedColor;
renderContext.HemisphereLightColor = savedHemiColor;
renderContext.AmbientLightColor = System.Drawing.Color.Black;
}
private PlanetShader11(PlanetShaderKey k)
{
key = k;
constants = new PlanetShaderConstants();
}
// Returns a shader used to draw the planet surface (or null if no shader was used)
public PlanetShader11 SetupPlanetSurfaceEffect(PlanetShaderKey key, float opacity)
{
return SetupPlanetSurfaceEffectShader(key, opacity);
}
private PlanetShader11 SetupPlanetSurfaceEffectShader(PlanetShaderKey key, float opacity)
{
PlanetShader11 shader = PlanetShader11.GetPlanetShader(Device, key);
// If we've got a shader, make it active on the device and set the
// shader constants.
if (shader != null)
{
shader.use(Device.ImmediateContext);
// Set the combined world/view/projection matrix in the shader
Matrix3d worldMatrix = World;
Matrix3d viewMatrix = View;
Matrix wvp = (worldMatrix * viewMatrix * Projection).Matrix;
shader.WVPMatrix = wvp;
shader.DiffuseColor = new Vector4(1.0f, 1.0f, 1.0f, 1.0f);
Matrix3d invWorld = worldMatrix;
invWorld.Invert();
// For view-dependent lighting (e.g. specular), we need the position of the camera
// in the planet-fixed coordinate system.
Matrix3d worldViewMatrix = worldMatrix * viewMatrix;
Matrix3d invWorldView = worldViewMatrix;
invWorldView.Invert();
shader.WorldViewMatrix = worldViewMatrix.Matrix;
Vector3d cameraPositionObj = Vector3d.TransformCoordinate(new Vector3d(0.0, 0.0, 0.0), invWorldView);
shader.CameraPosition = cameraPositionObj.Vector3;
}
Shader = shader;
return shader;
}
// Set up a shader for the specified material properties and the
// current lighting environment.
public void SetMaterial(Material material, Texture11 diffuseTex, Texture11 specularTex, Texture11 normalMap, float opacity)
{
PlanetSurfaceStyle surfaceStyle = PlanetSurfaceStyle.Diffuse;
if (material.Specular != System.Drawing.Color.Black)
{
surfaceStyle = PlanetSurfaceStyle.Specular;
}
// Force the emissive style when lighting is disabled
if (!lightingEnabled)
{
surfaceStyle = PlanetSurfaceStyle.Emissive;
}
PlanetShaderKey key = new PlanetShaderKey(surfaceStyle, false, 0);
if (reflectedLightColor != System.Drawing.Color.Black)
{
key.lightCount = 2;
}
key.textures = 0;
if (diffuseTex != null)
{
key.textures |= PlanetShaderKey.SurfaceProperty.Diffuse;
}
if (specularTex != null)
{
key.textures |= PlanetShaderKey.SurfaceProperty.Specular;
}
if (normalMap != null)
{
key.textures |= PlanetShaderKey.SurfaceProperty.Normal;
}
key.TwoSidedLighting = twoSidedLighting;
SetupPlanetSurfaceEffect(key, material.Opacity * opacity);
shader.DiffuseColor = new Vector4(material.Diffuse.R / 255.0f, material.Diffuse.G / 255.0f, material.Diffuse.B / 255.0f, material.Opacity*opacity);
if (surfaceStyle == PlanetSurfaceStyle.Specular || surfaceStyle == PlanetSurfaceStyle.SpecularPass)
{
shader.SpecularColor = new Vector4(material.Specular.R / 255.0f, material.Specular.G / 255.0f, material.Specular.B / 255.0f, 0.0f);
shader.SpecularPower = material.SpecularSharpness;
}
if (diffuseTex != null)
{
shader.MainTexture = diffuseTex.ResourceView;
}
if (specularTex != null)
{
shader.SpecularTexture = specularTex.ResourceView;
}
if (normalMap != null)
{
shader.NormalTexture = normalMap.ResourceView;
}
}
public void SetupBasicEffect(BasicEffect e, float opacity, System.Drawing.Color color)
{
Vector4 correctedColor;
if (sRGB)
{
// sRGB correction for alpha. Even though alpha should be linear, we apply a
// gamma correction because it's multiplied with color values. The right thing
// to do is probably to use pre-multiplied alpha throughout WWT and not gamma
// correct alpha.
opacity = (float)Math.Pow(opacity, 2.2);
correctedColor = new Vector4((float)Math.Pow(color.R / 255.0f, 2.2),
(float)Math.Pow(color.G / 255.0f, 2.2),
(float)Math.Pow(color.B / 255.0f, 2.2), opacity);
}
else
{
correctedColor = new Vector4(color.R / 255.0f, color.G / 255.0f, color.B / 255.0f, opacity);
}
switch (e)
{
case BasicEffect.TextureOnly:
{
PlanetShaderKey key = new PlanetShaderKey(PlanetSurfaceStyle.Emissive, false, 0);
SetupPlanetSurfaceEffect(key, opacity);
Shader.DiffuseColor = new Vector4(1.0f, 1.0f, 1.0f, opacity);
}
break;
case BasicEffect.ColorOnly:
{
PlanetShaderKey key = new PlanetShaderKey(PlanetSurfaceStyle.Emissive, false, 0);
key.textures = 0;
SetupPlanetSurfaceEffect(key, opacity);
Shader.DiffuseColor = correctedColor;
}
break;
case BasicEffect.TextureColorOpacity:
{
PlanetShaderKey key = new PlanetShaderKey(PlanetSurfaceStyle.Emissive, false, 0);
SetupPlanetSurfaceEffect(key, opacity);
Shader.DiffuseColor = correctedColor;
}
break;
case BasicEffect.ColoredText:
{
PlanetShaderKey key = new PlanetShaderKey(PlanetSurfaceStyle.Emissive, false, 0);
key.AlphaTexture = true;
SetupPlanetSurfaceEffect(key, opacity);
Shader.DiffuseColor = correctedColor;
}
break;
default:
Shader = null;
break;
}
}
private static PlanetShader11 SetupPlanetSurfaceEffectShader(RenderContext11 renderContext, PlanetShaderKey key, float opacity)
{
var shader = PlanetShader11.GetPlanetShader(renderContext.Device, key);
// If we've got a shader, make it active on the device and set the
// shader constants.
if (shader != null)
{
shader.use(renderContext.devContext);
// Set the combined world/view/projection matrix in the shader
var worldMatrix = renderContext.World;
var viewMatrix = renderContext.View;
var wvp = (worldMatrix * viewMatrix * renderContext.Projection).Matrix11;
shader.WVPMatrix = wvp;
shader.DiffuseColor = new Vector4(1.0f, 1.0f, 1.0f, 1.0f);
var invWorld = worldMatrix;
invWorld.Invert();
// For view-dependent lighting (e.g. specular), we need the position of the camera
// in the planet-fixed coordinate system.
var worldViewMatrix = worldMatrix * viewMatrix;
var invWorldView = worldViewMatrix;
invWorldView.Invert();
var cameraPositionObj = Vector3d.TransformCoordinate(new Vector3d(0.0, 0.0, 0.0), invWorldView);
shader.CameraPosition = cameraPositionObj.Vector311;
}
renderContext.Shader = shader;
return shader;
}
static void DrawSphere(RenderContext11 renderContext, Texture11 texture, int planetID, int sphereIndex, bool noMultires, bool drawLayers, PlanetShaderKey shaderKey)
{
var useMultires = Settings.Active.SolarSystemMultiRes && !noMultires;
// Let an override layer take the place of the standard layer
IImageSet defaultLayer = null;
var defaultLayerColor = Color.White;
if (drawLayers)
{
var referenceFrameName = Enum.GetName(typeof(SolarSystemObjects), (SolarSystemObjects)planetID);
foreach (var layer in LayerManager.AllMaps[referenceFrameName].Layers)
{
if (layer.Enabled && layer is ImageSetLayer)
{
if (((ImageSetLayer)layer).OverrideDefaultLayer)
{
defaultLayer = ((ImageSetLayer)layer).ImageSet;
defaultLayerColor = layer.Color;
useMultires = true;
break;
}
}
}
}
if (useMultires)
{
renderContext.DepthStencilMode = DepthStencilMode.ZReadWrite;
if (sphereIndex < 4)
{
IImageSet planet = null;
if (defaultLayer != null)
{
planet = defaultLayer;
}
else
{
var planetName = GetNameFrom3dId(planetID);
var imageSetName = planetName == "Mars" ? "Visible Imagery" : planetName;
planet = Earth3d.MainWindow.GetImagesetByName(imageSetName);
}
if (planet != null)
{
var normColor = new Vector4(defaultLayerColor.R, defaultLayerColor.G, defaultLayerColor.B, defaultLayerColor.A) * (1.0f / 255.0f);
if (RenderContext11.sRGB)
{
normColor.X = (float) Math.Pow(normColor.X, 2.2);
normColor.Y = (float)Math.Pow(normColor.Y, 2.2);
normColor.Z = (float)Math.Pow(normColor.Z, 2.2);
}
renderContext.Shader.DiffuseColor = normColor;
renderContext.setRasterizerState(TriangleCullMode.CullClockwise);
Earth3d.MainWindow.DrawTiledSphere(planet, 100, Color.White);
if (planetID == (int)SolarSystemObjects.Earth && Settings.Active.ShowClouds)
{
if (CloudTexture != null)
{
var cloudShaderKey = new PlanetShaderKey(PlanetSurfaceStyle.Diffuse, Settings.Active.ShowEarthSky, 0);
cloudShaderKey.eclipseShadowCount = shaderKey.eclipseShadowCount;
cloudShaderKey.HasAtmosphere = shaderKey.HasAtmosphere;
if (!Settings.Active.SolarSystemLighting)
{
cloudShaderKey.style = PlanetSurfaceStyle.Emissive;
}
SetupPlanetSurfaceEffect(renderContext, cloudShaderKey, 1.0f);
SetAtmosphereConstants(renderContext, planetID, 1.0f, CalcSkyGeometryHeight(planetID));
renderContext.MainTexture = CloudTexture;
var savedWorld = renderContext.World;
var cloudScale = 1.0 + (EarthCloudHeightMeters) / 6378100.0;
renderContext.World = Matrix3d.Scaling(cloudScale, cloudScale, cloudScale) * renderContext.World;
renderContext.setRasterizerState(TriangleCullMode.CullCounterClockwise);
renderContext.DepthStencilMode = DepthStencilMode.Off;
renderContext.BlendMode = BlendMode.Alpha;
DrawFixedResolutionSphere(renderContext, sphereIndex);
renderContext.World = savedWorld;
renderContext.DepthStencilMode = DepthStencilMode.ZReadWrite;
renderContext.BlendMode = BlendMode.None;
}
}
return;
}
}
}
renderContext.MainTexture = texture;
renderContext.Device.ImmediateContext.InputAssembler.PrimitiveTopology = PrimitiveTopology.TriangleList;
renderContext.Device.ImmediateContext.InputAssembler.InputLayout = renderContext.Shader.inputLayout(PlanetShader11.StandardVertexLayout.PositionNormalTex2);
renderContext.PreDraw();
renderContext.SetVertexBuffer(sphereVertexBuffers[sphereIndex]);
renderContext.SetIndexBuffer(sphereIndexBuffers[sphereIndex]);
renderContext.devContext.DrawIndexed(sphereIndexBuffers[sphereIndex].Count, 0, 0);
}
// Various input layouts used in 3D solar system mode
// TODO Replace with an input layout cache
static void DrawRings(RenderContext11 renderContext)
{
renderContext.setRasterizerState(TriangleCullMode.Off);
var ringsKey = new PlanetShaderKey(PlanetSurfaceStyle.PlanetaryRings, false, 0);
SetupPlanetSurfaceEffect(renderContext, ringsKey, 1.0f);
renderContext.Shader.MainTexture = RingsMap.ResourceView;
renderContext.devContext.InputAssembler.PrimitiveTopology = PrimitiveTopology.TriangleStrip;
renderContext.Device.ImmediateContext.InputAssembler.InputLayout = renderContext.Shader.inputLayout(PlanetShader11.StandardVertexLayout.PositionNormalTex);
renderContext.PreDraw();
renderContext.SetVertexBuffer(ringsVertexBuffer);
renderContext.devContext.Draw((triangleCountRings+2), 0);
renderContext.setRasterizerState(TriangleCullMode.CullCounterClockwise);
}
private static void DrawPlanet3d(RenderContext11 renderContext, int planetID, Vector3d centerPoint, float opacity)
{
// Assume that KML is only used for Earth
KmlLabels kmlMarkers = null;
if (planetID == (int)SolarSystemObjects.Earth)
{
kmlMarkers = Earth3d.MainWindow.KmlMarkers;
if (kmlMarkers != null)
{
kmlMarkers.ClearGroundOverlays();
}
}
var matOld = renderContext.World;
var matOldBase = renderContext.WorldBase;
var matOldNonRotating = renderContext.WorldBaseNonRotating;
var radius = GetAdjustedPlanetRadius(planetID);
SetupPlanetMatrix(renderContext, planetID, centerPoint, true);
LayerManager.PreDraw(renderContext, 1.0f, false, Enum.GetName(typeof(SolarSystemObjects), (SolarSystemObjects)planetID), true);
float planetWidth = 1;
if (planetID == (int)SolarSystemObjects.Saturn)
{
planetWidth = 3;
}
if (IsPlanetInFrustum(renderContext, planetWidth))
{
// Save all matrices modified by SetupMatrix...
var matOld2 = renderContext.World;
var matOldBase2 = renderContext.WorldBase;
var matOldNonRotating2 = renderContext.WorldBaseNonRotating;
renderContext.World = matOld;
renderContext.WorldBase = matOldBase;
renderContext.WorldBaseNonRotating = matOldNonRotating;
SetupMatrixForPlanetGeometry(renderContext, planetID, centerPoint, true);
var loc = planet3dLocations[planetID] - centerPoint;
loc.Subtract(renderContext.CameraPosition);
var dist = loc.Length();
var sizeIndexParam = (2 * Math.Atan(.5 * (radius / dist))) / Math.PI * 180;
// Calculate pixelsPerUnit which is the number of pixels covered
// by an object 1 AU at the distance of the planet center from
// the camera. This calculation works regardless of the projection
// type.
var viewportHeight = renderContext.ViewPort.Height;
var p11 = renderContext.Projection.M11;
var p34 = renderContext.Projection.M34;
var p44 = renderContext.Projection.M44;
var w = Math.Abs(p34) * dist + p44;
var pixelsPerUnit = (float)(p11 / w) * viewportHeight;
var planetRadiusInPixels = (float)(radius * pixelsPerUnit);
var sizeIndex = 0;
if (sizeIndexParam > 10.5)
{
sizeIndex = 0;
}
else if (sizeIndexParam > 3.9)
{
sizeIndex = 1;
}
else if (sizeIndexParam > .72)
{
sizeIndex = 2;
}
else if (sizeIndexParam > 0.057)
{
sizeIndex = 3;
}
else
{
sizeIndex = 4;
}
var eclipseShadowCount = 0;
var hasRingShadowsOnPlanet = false;
// No shadows should be drawn if Solar System Lighting is OFF
if (Settings.Active.SolarSystemLighting)
{
// Eclipse shadow setup for Earth
if (planetID == (int)SolarSystemObjects.Earth)
{
if (sizeIndex < 2)
{
var width = Settings.Active.SolarSystemScale * .00001f;
SetupShadow(renderContext, centerPoint, width, SolarSystemObjects.Moon, 0);
eclipseShadowCount = 1;
}
}
// Eclipse shadow setup for Jupiter
// Shadow widths based only on moon diameter in relation to Moon diameter
if (planetID == (int)SolarSystemObjects.Jupiter && sizeIndex < 3)
{
var p = 0;
float width;
if (planetLocations[(int)SolarSystemObjects.Callisto].Shadow)
{
width = Settings.Active.SolarSystemScale * .0000139f;
SetupShadow(renderContext, centerPoint, width, SolarSystemObjects.Callisto, p++);
}
if (planetLocations[(int)SolarSystemObjects.Ganymede].Shadow)
{
width = Settings.Active.SolarSystemScale * .0000152f;
SetupShadow(renderContext, centerPoint, width, SolarSystemObjects.Ganymede, p++);
}
if (planetLocations[(int)SolarSystemObjects.Io].Shadow)
{
width = Settings.Active.SolarSystemScale * .0000105f;
SetupShadow(renderContext, centerPoint, width, SolarSystemObjects.Io, p++);
}
if (planetLocations[(int)SolarSystemObjects.Europa].Shadow)
{
width = Settings.Active.SolarSystemScale * .000009f;
SetupShadow(renderContext, centerPoint, width, SolarSystemObjects.Europa, p++);
}
eclipseShadowCount = p;
}
// Ring shadows on Saturn
if (planetID == (int)SolarSystemObjects.Saturn && Settings.Active.SolarSystemLighting)
{
hasRingShadowsOnPlanet = true;
}
//ShadowStuff end
}
// Get the position of the Sun relative to the planet center; the position is
// in the world coordinate frame.
var sunPosition = (planet3dLocations[0] - planet3dLocations[planetID]);
renderContext.SunPosition = sunPosition;
if (sizeIndex < 4)
{
var atmosphereOn = (planetID == 19 || planetID == 3) && Settings.Active.ShowEarthSky;
if (planetID == 0 && sizeIndex > 1)
{
//todo11
//device.RenderState.Clipping = false;
DrawPointPlanet(renderContext, new Vector3d(0, 0, 0), (float)Math.Min(1.6, sizeIndexParam) * 2, planetColors[planetID], true, opacity);
//todo11
//device.RenderState.Clipping = true;
}
var surfaceStyle = PlanetSurfaceStyle.Diffuse;
if (planetID == (int)SolarSystemObjects.Sun || !Settings.Active.SolarSystemLighting)
{
surfaceStyle = PlanetSurfaceStyle.Emissive;
}
else if (planetID == (int)SolarSystemObjects.Moon || planetID == (int)SolarSystemObjects.Mercury)
{
// Use Lommel-Seeliger photometric model for regolith covered bodies
// surfaceStyle = PlanetSurfaceStyle.LommelSeeliger;
}
var skyGeometryHeight = CalcSkyGeometryHeight(planetID);
var shaderKey = new PlanetShaderKey(surfaceStyle, atmosphereOn, eclipseShadowCount);
shaderKey.HasRingShadows = hasRingShadowsOnPlanet;
if (kmlMarkers != null)
{
shaderKey.overlayTextureCount = Math.Min(kmlMarkers.GroundOverlayCount, PlanetShader11.MaxOverlayTextures);
}
SetupPlanetSurfaceEffect(renderContext, shaderKey, opacity);
renderContext.LocalCenter = Vector3d.Empty;
// Set up any overlay textures
if (shaderKey.overlayTextureCount > 0)
{
if (renderContext.ShadersEnabled)
{
kmlMarkers.SetupGroundOverlays(renderContext);
}
}
if (shaderKey.eclipseShadowCount > 0)
{
renderContext.Shader.EclipseTexture = PlanetShadow.ResourceView;
}
if (shaderKey.HasRingShadows)
{
renderContext.Shader.RingTexture = RingsMap.ResourceView;
}
if (atmosphereOn)
{
SetAtmosphereConstants(renderContext, planetID, 1.0f, skyGeometryHeight);
}
// Disable overlays after we're done rendering the planet surface (i.e. we don't want
// them on any rings, sky shell, or cloud layer.)
shaderKey.overlayTextureCount = 0;
renderContext.setRasterizerState(TriangleCullMode.CullCounterClockwise);
if (planetID == 19 && !Settings.Active.SolarSystemMultiRes && Settings.Active.SolarSystemLighting)
{
shaderKey.style = PlanetSurfaceStyle.DiffuseAndNight;
SetupPlanetSurfaceEffect(renderContext, shaderKey, opacity);
if (atmosphereOn)
{
SetAtmosphereConstants(renderContext, planetID, 1.0f, skyGeometryHeight);
}
// Set eclipse constants
var eclipseShadowWidth = Settings.Active.SolarSystemScale * .00001f;
if (shaderKey.eclipseShadowCount > 0)
{
SetupShadow(renderContext, centerPoint, eclipseShadowWidth, SolarSystemObjects.Moon, 0);
renderContext.Shader.EclipseTexture = PlanetShadow.ResourceView;
}
renderContext.Shader.NightTexture = planetTexturesMaps[20].ResourceView;
renderContext.BlendMode = BlendMode.None;
DrawSphere(renderContext, planetTexturesMaps[planetID], planetID, sizeIndex, false, false, shaderKey);
// Set up for rendering specular pass
shaderKey.style = PlanetSurfaceStyle.SpecularPass;
SetupPlanetSurfaceEffect(renderContext, shaderKey, opacity);
if (shaderKey.eclipseShadowCount > 0)
{
SetupShadow(renderContext, centerPoint, eclipseShadowWidth, SolarSystemObjects.Moon, 0);
renderContext.Shader.EclipseTexture = PlanetShadow.ResourceView;
}
if (atmosphereOn)
{
SetAtmosphereConstants(renderContext, planetID, 1.0f, skyGeometryHeight);
}
// Set up specular properties; this should eventually be abstracted by RenderContext
renderContext.Shader.SpecularPower = 50.0f;
renderContext.Shader.SpecularColor = new Vector4(0.5f, 0.5f, 0.5f, 0.0f);
renderContext.BlendMode = BlendMode.Additive;
DrawSphere(renderContext, planetTexturesMaps[21], planetID, sizeIndex, false, true, shaderKey);
renderContext.BlendMode = BlendMode.None;
}
else
{
renderContext.DepthStencilMode = DepthStencilMode.ZReadWrite;
renderContext.PreDraw();
DrawSphere(renderContext, planetTexturesMaps[planetID], planetID, sizeIndex, false, true, shaderKey);
}
// Render the sky geometry. This is a sphere slightly larger than the planet where the
// only light is from atmospheric scattering. We'll render inside of the sphere only.
if (atmosphereOn)
{
// The sky geometry needs to be slightly larger than the planet itself, so adjust the
// world matrix by a scale factor a bit greater than 1.0
var savedWorld = renderContext.World;
var world = renderContext.World;
var skyRadius = skyGeometryHeight + 1.0f;
world.ScalePrepend(new Vector3d(skyRadius, skyRadius, skyRadius));
renderContext.World = world;
shaderKey.style = PlanetSurfaceStyle.Sky;
var atmosphereShader = SetupPlanetSurfaceEffect(renderContext, shaderKey, 1.0f);
renderContext.Shader = atmosphereShader;
// Set the shadow texture if there's an eclipse
if (shaderKey.eclipseShadowCount > 0)
{
atmosphereShader.EclipseTexture = PlanetShadow.ResourceView;
}
// Atmosphere height is relative to the size of the sphere being rendered. Since we're
// actually rendering the shell geometry here, we just use a value of 0 for the height
// and a lower value for the zero height.
SetAtmosphereConstants(renderContext, planetID, 1.0f + skyGeometryHeight, 0.0f);
// We're rendering just the atmosphere; there's no contribution from a surface, so set the
// diffuse color to black.
atmosphereShader.DiffuseColor = new Vector4(0.0f, 0.0f, 0.0f, 0.0f);
atmosphereShader.Opacity = 0.0f;
//renderContext.BlendMode = BlendMode.Alpha;
// Fade out the sky geometry as its screen size gets thin; this prevents terrible
// aliasing that occurs.
var skyShellPixels = (float)(skyGeometryHeight * radius * pixelsPerUnit);
var blendFactor = Math.Min(3.0f, skyShellPixels) / 3.0f;
renderContext.BlendMode = BlendMode.BlendFactorInverseAlpha;
renderContext.BlendFactor = new Color4(blendFactor, blendFactor, blendFactor, 1.0f);
renderContext.DepthStencilMode = DepthStencilMode.ZReadOnly;
//Render the _inside_ of the sphere. No need for multires or layers when drawing the sky
renderContext.setRasterizerState(TriangleCullMode.CullClockwise);
DrawSphere(renderContext, planetTexturesMaps[planetID], planetID, 0/*sizeIndex*/, true, false, shaderKey);
// Reset device state
renderContext.setRasterizerState(TriangleCullMode.CullCounterClockwise);
renderContext.DepthStencilMode = DepthStencilMode.ZReadWrite;
renderContext.BlendMode = BlendMode.None;
// Restore the world matrix
renderContext.World = savedWorld;
}
RestoreDefaultMaterialState(renderContext);
if (planetID == 5)
{
var ringsKey = new PlanetShaderKey(PlanetSurfaceStyle.PlanetaryRings, false, 0);
SetupPlanetSurfaceEffect(renderContext, ringsKey, 1.0f);
DrawRings(renderContext);
RestoreDefaultMaterialState(renderContext);
}
}
else
{
if (planetID == 0)
{
DrawPointPlanet(renderContext, new Vector3d(0, 0, 0), (float)(10 * planetDiameters[planetID]), planetColors[planetID], true, opacity);
}
else if (planetID < (int)SolarSystemObjects.Moon || planetID == (int)SolarSystemObjects.Earth)
{
var size = (float)(800 * planetDiameters[planetID]);
DrawPointPlanet(renderContext, new Vector3d(0, 0, 0), (float)Math.Max(.05, Math.Min(.1f, size)), planetColors[planetID], true, opacity);
}
else if (sizeIndexParam > .002)
{
var size = (float)(800 * planetDiameters[planetID]);
DrawPointPlanet(renderContext, new Vector3d(0, 0, 0), (float)Math.Max(.05, Math.Min(.1f, size)), planetColors[planetID], true, opacity);
}
}
// Restore all matrices modified by SetupMatrix...
renderContext.World = matOld2;
renderContext.WorldBase = matOldBase2;
renderContext.WorldBaseNonRotating = matOldNonRotating2;
}
{
var sunPosition = (planet3dLocations[0] - centerPoint);
var planetPosition = planet3dLocations[planetID] - centerPoint;
renderContext.SunPosition = sunPosition;
renderContext.ReflectedLightPosition = planetPosition;
if (planetID == (int)SolarSystemObjects.Earth)
{
renderContext.ReflectedLightColor = Color.FromArgb(50, 70, 90);
renderContext.HemisphereLightColor = Color.FromArgb(100, 100, 100);
}
else
{
renderContext.ReflectedLightColor = Color.Black;
renderContext.HemisphereLightColor = Color.Black;
}
renderContext.OccludingPlanetPosition = planetPosition;
renderContext.OccludingPlanetRadius = planetDiameters[planetID] / 2.0;
}
LayerManager.Draw(renderContext, 1.0f, false, Enum.GetName(typeof(SolarSystemObjects), (SolarSystemObjects)planetID), true, false);
// Reset render context state
renderContext.ReflectedLightColor = Color.Black;
renderContext.HemisphereLightColor = Color.Black;
renderContext.World = matOld;
Earth3d.MainWindow.MakeFrustum();
RestoreDefaultMaterialState(renderContext);
renderContext.setRasterizerState(TriangleCullMode.CullClockwise);
}
// Returns a shader used to draw the planet surface (or null if no shader was used)
public static PlanetShader11 SetupPlanetSurfaceEffect(RenderContext11 renderContext, PlanetShaderKey key, float opacity)
{
return SetupPlanetSurfaceEffectShader(renderContext, key, opacity);
}
