public ColorRGBA(ColorRGBA c)
{
Red = c.Red;
Green = c.Green;
Blue = c.Blue;
Alpha = c.Alpha;
}
/// <summary>
/// Set uniform state variable (vec4 variable).
/// </summary>
/// <param name="ctx">
/// A <see cref="GraphicsContext"/> used for operations.
/// </param>
/// <param name="uniformName">
/// A <see cref="String"/> that specify the variable name in the shader source.
/// </param>
/// <param name="v">
/// A <see cref="ColorRGBA"/> holding the uniform variabile data.
/// </param>
public void SetVariantUniform(GraphicsContext ctx, string uniformName, ColorRGBA v)
{
if (v == null)
throw new ArgumentNullException("v");
SetUniform(ctx, uniformName, v.Red, v.Green, v.Blue, v.Alpha);
}