public GLTexture Process(Action <GLShader> Action)
{
RenderTarget.BindUnbind(() =>
{
GL.glClearStencil(0);
GL.glClearDepthf(0f);
GL.glClearColor(0, 0, 0, 1);
GL.glClear(GL.GL_COLOR_CLEAR_VALUE | GL.GL_DEPTH_CLEAR_VALUE | GL.GL_STENCIL_CLEAR_VALUE);
Shader.GetAttribute("a_position").NoWarning().SetData <float>(PositionBuffer, 2);
Shader.GetAttribute("a_texcoords").NoWarning().SetData <float>(TexcoordsBuffer, 2);
Shader.GetUniform("u_textureSize").NoWarning().Set(new Vector4f(Width, Height, 0, 0));
Shader.GetUniform("u_pixelSize").NoWarning()
.Set(new Vector4f(1.0f / Width, 1.0f / Height, 0, 0));
Shader.Draw(GLGeometry.GL_TRIANGLE_STRIP, 4, () => { Action(Shader); });
});
return(RenderTarget.TextureColor);
}
/// <summary>
/// Copies a RenderTarget from one to another
/// </summary>
/// <param name="From"></param>
/// <param name="To"></param>
public static void CopyFromTo(GLRenderTarget From, GLRenderTarget To)
{
Contract.Assert(From != null);
Contract.Assert(To != null);
From.BindUnbind(() =>
{
To.TextureColor?.BindUnbind(() =>
{
GL.glCopyTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGBA4, 0, 0, From.Width, From.Height, 0);
});
To.TextureDepth?.BindUnbind(() =>
{
GL.glCopyTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_DEPTH_COMPONENT, 0, 0, From.Width,
From.Height, 0);
});
});
}
/// <summary>
/// Copies a RenderTarget from one to another
/// </summary>
/// <param name="From"></param>
/// <param name="To"></param>
public static void CopyFromTo(GLRenderTarget From, GLRenderTarget To)
{
Contract.Assert(From != null);
Contract.Assert(To != null);
From.BindUnbind(() =>
{
if (To.TextureColor != null)
{
To.TextureColor.BindUnbind(() =>
{
GL.glCopyTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGBA4, 0, 0, From.Width, From.Height, 0);
});
}
if (To.TextureDepth != null)
{
To.TextureDepth.BindUnbind(() =>
{
GL.glCopyTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_DEPTH_COMPONENT, 0, 0, From.Width, From.Height, 0);
});
}
});
}