public UniformBufferObject CreateUniformBlock(string uniformBlockName, BufferObjectHint hint)
{
UniformBlockBinding uniformBlockBinding = GetUniformBlock(uniformBlockName);
if (uniformBlockBinding == null)
{
throw new ArgumentException("no uniform block with such name", "uniformBlockName");
}
UniformBufferObject uniformBuffer = new UniformBufferObject(hint);
uniformBuffer.Create(uniformBlockBinding.DataSize);
return(uniformBuffer);
}
public void CreateUniformBlock(string uniformBlockName, UniformBufferObject uniformBuffer)
{
if (uniformBuffer == null)
{
throw new ArgumentNullException("uniformBuffer");
}
UniformBlockBinding uniformBlockBinding = GetUniformBlock(uniformBlockName);
if (uniformBlockBinding == null)
{
throw new ArgumentException("no uniform block with such name", "uniformBlockName");
}
// Create/Update
uniformBuffer.Create(uniformBlockBinding.DataSize);
}
/// <summary>
/// Set uniform state variable (floating-point 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="Single"/> holding the uniform variabile data.
/// </param>
public void SetUniformBlock(GraphicsContext ctx, string uniformBlockName, UniformBufferObject uniformBuffer)
{
if (ctx == null)
{
throw new ArgumentNullException("ctx");
}
if (uniformBuffer == null)
{
throw new ArgumentNullException("uniformBuffer");
}
UniformBlockBinding uniformBlockBinding = GetUniformBlock(uniformBlockName);
if (uniformBlockBinding == null)
{
throw new ArgumentException("no uniform block with such name", "uniformBlockName");
}
// Select a binding point
ctx.Bind(uniformBuffer);
// Link the uniform buffer
Gl.UniformBlockBinding(ObjectName, uniformBlockBinding.Index, uniformBuffer.BindingIndex);
}