public void Draw(Camera camera, Action<ShaderProgram> draw, Viewport viewport = null)
{
var vp = viewport ?? game.MainViewport;
GBuffer.Use (shader => {
shader.Use (draw);
});
Framebuffer.Bind ();
GBuffer.fbo.BufferTextures[FboAttachment.DiffuseAttachment].Bind (TextureUnit.Texture0);
GBuffer.fbo.BufferTextures[FboAttachment.NormalAttachment].Bind (TextureUnit.Texture1);
GBuffer.fbo.BufferTextures[FboAttachment.SpecularAttachment].Bind (TextureUnit.Texture2);
GBuffer.fbo.BufferTextures[FboAttachment.DepthAttachment].Bind (TextureUnit.Texture3);
this.AmbientShader["u_diffuse"] = 0;
this.AmbientShader["ambient_color"] = this.AmbientColor;
vp.Draw (this.AmbientShader);
GL.Enable (EnableCap.Blend);
GL.BlendFunc (BlendingFactorSrc.One, BlendingFactorDest.One);
if (DirectionalLights.Count >= 1) {
this.DeferredDirectional["u_diffuse"] = 0;
this.DeferredDirectional["u_normal"] = 1;
this.DeferredDirectional["u_specular"] = 2;
this.DeferredDirectional["u_depth"] = 3;
this.DeferredDirectional["inverseCamera"] = camera.ViewProjectionMatrix.Inverted ();
this.DeferredDirectional["eye_pos"] = camera.Position;
foreach (DirectionalLight light in this.DirectionalLights) {
this.DeferredDirectional.SetDirectionalLight ("directionalLight", light);
vp.Draw (this.DeferredDirectional);
}
}
if (PointLights.Count >= 1) {
this.DeferredPoint["u_diffuse"] = 0;
this.DeferredPoint["u_normal"] = 1;
this.DeferredPoint["u_specular"] = 2;
this.DeferredPoint["u_depth"] = 3;
this.DeferredPoint["inverseCamera"] = camera.ViewProjectionMatrix.Inverted ();
this.DeferredPoint["eye_pos"] = camera.Position;
foreach (PointLight light in this.PointLights) {
this.DeferredPoint.SetPointLight ("pointLight", light);
vp.Draw (this.DeferredPoint);
}
}
GL.Disable (EnableCap.Blend);
this.Framebuffer.Unbind ();
vp.DrawTexture (Framebuffer.BufferTextures[FboAttachment.DiffuseAttachment]);
}
public void PreInitialize()
{
// Initialize the viewport
Viewport = new Viewport (new Resolution (this.Configuration.Width, this.Configuration.Height));
MainViewport = Viewport;
// Initialize the rendering pipeline
RenderingPipeline = new RenderingPipeline (this);
}