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;
}
