/// <summary>
///
/// </summary>
/// <param name="controlMode">index buffer is accessable randomly or only by frame.</param>
/// <param name="transformFeedbackObj"></param>
public void Render(IndexBuffer.ControlMode controlMode = IndexBuffer.ControlMode.ByFrame, TransformFeedbackObject transformFeedbackObj = null)
{
ShaderProgram program = this.Program;
GLStateList stateList = this.StateList;
// 绑定shader
program.Bind();
program.PushUniforms(); // push new uniform values to GPU side.
stateList.On();
if (transformFeedbackObj != null)
{
transformFeedbackObj.Bind();
transformFeedbackObj.Begin(this.VertexArrayObject.IndexBuffer.Mode);
this.VertexArrayObject.Draw(controlMode);
transformFeedbackObj.End();
transformFeedbackObj.Unbind();
}
else
{
this.VertexArrayObject.Draw(controlMode);
}
stateList.Off();
// 解绑shader
program.Unbind();
}
/// <summary>
///
/// </summary>
/// <param name="index"></param>
/// <param name="controlMode">index buffer is accessable randomly or only by frame.</param>
/// <param name="transformFeedbackObj"></param>
public void Render(int index, IndexBuffer.ControlMode controlMode, TransformFeedbackObject transformFeedbackObj = null)
{
if (index < 0 || this.Methods.Length <= index)
{
throw new System.IndexOutOfRangeException();
}
this.Methods[index].Render(controlMode, transformFeedbackObj);
}
/// <summary>
/// 执行一次渲染的过程。
/// <para>Execute rendering command.</para>
/// </summary>
/// <param name="controlMode">index buffer is accessable randomly or only by frame.</param>
/// <param name="temporaryIndexBuffer">render by a temporary index buffer</param>
public void Draw(IndexBuffer.ControlMode controlMode, IndexBuffer temporaryIndexBuffer = null)
{
this.Bind();
if (temporaryIndexBuffer != null)
{
temporaryIndexBuffer.Draw(controlMode);
}
else
{
this.IndexBuffer.Draw(controlMode);
}
this.Unbind();
}
/// <summary>
///
/// </summary>
/// <param name="controlMode">index buffer is accessable randomly or only by frame.</param>
public void Render(IndexBuffer.ControlMode controlMode = IndexBuffer.ControlMode.ByFrame)
{
this.Render(controlMode, null);
}
