public void Render(Cloud cloud, Matrix view, Matrix proj, Vector3 sunDir, Vector3 sunlightColor)
{
device.SetRenderTarget(lightingTarget);
device.Clear(Color.Transparent);
effectLight.Parameters["sunDir"].SetValue(sunDir);
effectLight.Parameters["color"].SetValue(sunlightColor);
effectLight.Parameters["scatteredMin"].SetValue(ScatteredMin);
effectLight.Parameters["scatteredMax"].SetValue(ScatteredMax);
effectLight.Parameters["dirMin"].SetValue(DirectionalMin);
effectLight.Parameters["dirMax"].SetValue(DirectionalMax);
effectLight.Parameters["dirExp"].SetValue(DirectionalExp);
effectLight.Parameters["constant"].SetValue(Constant);
//device.DepthStencilState = DepthStencilState.Default;
foreach (var sphere in cloud.Spheres)
{
Matrix world = Matrix.CreateScale(sphere.radius) * Matrix.CreateTranslation(sphere.position);
effectLight.Parameters["worldViewProj"].SetValue(world * view * proj);
effectLight.Parameters["worldView"].SetValue(world);
mesh.Meshes[0].MeshParts[0].Effect = effectLight;
mesh.Meshes[0].Draw();
}
device.BlendState = BlendState.AlphaBlend;
device.SetRenderTarget(blurVTarget);
device.Clear(Color.Transparent);
effectPostprocess.Parameters["cloudLight"].SetValue(lightingTarget);
effectPostprocess.Parameters["offset"].SetValue(1.0f / (float)targetResolution);
effectPostprocess.CurrentTechnique.Passes[0].Apply();
device.SetVertexBuffer(fullscreenQuad);
device.DrawPrimitives(PrimitiveType.TriangleStrip, 0, 2);
device.SetRenderTarget(BypassDistortion ? null : blurHTarget);
if (!BypassDistortion)
device.Clear(Color.Transparent);
effectPostprocess.Parameters["cloudLight"].SetValue(blurVTarget);
effectPostprocess.Parameters["offset"].SetValue(1.0f / (float)targetResolution);
effectPostprocess.CurrentTechnique.Passes[1].Apply();
device.SetVertexBuffer(fullscreenQuad);
device.DrawPrimitives(PrimitiveType.TriangleStrip, 0, 2);
if (!BypassDistortion)
{
device.SetRenderTarget(null);
effectPostprocess.Parameters["cloudLight"].SetValue(blurHTarget);
effectPostprocess.Parameters["offset"].SetValue(1.0f / (float)targetResolution);
effectPostprocess.Parameters["distortion"].SetValue(distortion);
effectPostprocess.Parameters["hardness"].SetValue(Hardness);
effectPostprocess.Parameters["frequency"].SetValue(DistortionFreq);
effectPostprocess.Parameters["amplitude"].SetValue(DistortionAmp);
effectPostprocess.CurrentTechnique.Passes[2].Apply();
device.SetVertexBuffer(fullscreenQuad);
device.DrawPrimitives(PrimitiveType.TriangleStrip, 0, 2);
}
device.BlendState = BlendState.Opaque;
}
public CloudLayer()
{
Clouds = new List<Cloud>();
Cloud c = new Cloud();
c.Spheres.Add(new Sphere(new Vector3(0.6f), 0.1f));
c.Spheres.Add(new Sphere(new Vector3(0.8f, 0.7f, 0.6f), 0.1f));
c.Spheres.Add(new Sphere(new Vector3(-2.0f, 1.0f, -2.0f), 0.2f));
c.Spheres.Add(new Sphere(new Vector3(-2.2f, 1.05f, -1.95f), 0.2f));
c.Spheres.Add(new Sphere(new Vector3(-1.95f, 0.99f, -2.01f), 0.2f));
c.Spheres.Add(new Sphere(new Vector3(-1.9f, 1.1f, -2.01f), 0.2f));
Clouds.Add(c);
}
public void generateClouds(int n)
{
while (Clouds.Count < n)
{
Random rand = new Random();
double theta = 90.0 - 30.0 * rand.NextDouble();
double phi = 360.0 * rand.NextDouble();
float x = (float) (Math.Cos(theta) * Math.Cos(phi));
float z = (float) (Math.Cos(theta) * Math.Sin(phi));
float y = (float) (1.0 + rand.NextDouble());
Cloud c = new Cloud();
c.Spheres.Add(new Sphere(new Vector3(x, y, z), 0.2f));
c.Spheres.Add(new Sphere(new Vector3(x-0.1f, y, z+0.1f), 0.2f));
c.Spheres.Add(new Sphere(new Vector3(x-0.2f, y, z-0.1f), 0.2f));
Clouds.Add(c);
}
while (Clouds.Count > n)
{
Clouds.RemoveAt(Clouds.Count - 1);
}
}
