public override void Draw(GraphicsDevice gd, TimeSpan time, Camera camera)
{
if (!IsVisible)
{
return;
}
ccwState = new RasterizerState
{
CullMode = CullMode.CullCounterClockwiseFace,
FillMode = ShowWireframe ? FillMode.WireFrame : FillMode.Solid,
};
gd.Textures[0] = sunTexture;
gd.Textures[1] = turbulence1Texture;
gd.Textures[2] = turbulence2Texture;
gd.Textures[3] = gradientTexture;
gd.SamplerStates[1] = SamplerState.AnisotropicWrap;
gd.SamplerStates[2] = SamplerState.AnisotropicWrap;
gd.SamplerStates[3] = SamplerState.LinearClamp;
//
// Pass 1, Sun map
//
var transform = Transform;
transform = Matrix.CreateScale((float)Scale) * transform;
shaderConstants.WorldMatrix = transform;
shaderConstants.WorldInverseTransposeMatrix = Matrix.Transpose(Matrix.Invert(transform));
shaderConstants.WorldViewProjectionMatrix = transform * camera.ViewTransform * camera.ProjectionTransform;
shaderConstants.ViewInverseMatrix = Matrix.Invert(camera.ViewTransform);
shaderConstants.TotalSeconds.X = (float)time.TotalSeconds;
shaderConstants.LightPos = new Vector4(LightPosition, 1);
gd.SetVertexShaderConstantFloat4(0, ref shaderConstants);
var showWireframe = new Vector4(ShowWireframe ? 1 : 0);
gd.SetPixelShaderConstantFloat4(0, ref showWireframe);
gd.SetVertexShader(sunVertexShader);
gd.SetPixelShader(sunPixelShader);
gd.DepthStencilState = depthState;
gd.BlendState = BlendState.Opaque;
gd.RasterizerState = ccwState;
// Perform refraction mapping
if (ReflectionTexture != null)
{
gd.Textures[0] = ReflectionTexture;
gd.SetPixelShader(refractionPixelShader);
}
mesh.Draw(gd);
}