RenderTexture.cs :  » Game » RealmForge » Axiom » Graphics » C# / CSharp Open Source

using System;
using Axiom.Core;
using Axiom.Media;

namespace Axiom.Graphics{
  /// <summary>
  ///    Custom RenderTarget that allows for rendering a scene to a texture.
  /// </summary>
  public abstract class RenderTexture : RenderTarget {
        #region Fields

        /// <summary>
        ///    The texture object that will be accessed by the rest of the API.
        /// </summary>
        protected Texture texture;

        #endregion Fields

        #region Constructors

        public RenderTexture(string name, int width, int height) : 
            this(name, width, height, TextureType.TwoD) {}

    public RenderTexture(string name, int width, int height, TextureType type) {
            this.name = name;
            this.width = width;
            this.height = height;
            // render textures are high priority
            this.priority = RenderTargetPriority.High;
            texture = TextureManager.Instance.CreateManual(name, type, width, height, 0, PixelFormat.R8G8B8, TextureUsage.RenderTarget);
            TextureManager.Instance.Load(texture, 1);
    }

        #endregion Constructors

        #region Methods

        protected override void OnAfterUpdate() {
            base.OnAfterUpdate();

            CopyToTexture();
        }

        /// <summary>
        ///    
        /// </summary>
        protected abstract void CopyToTexture();

        /// <summary>
        ///    Ensures texture is destroyed.
        /// </summary>
        public override void Dispose() {
            base.Dispose();

            TextureManager.Instance.Unload(texture);
        }

        #endregion Methods
  }
}