/// <summary>
///
/// </summary>
/// <param name="controlMode">index buffer is accessable randomly or only by frame.</param>
/// <param name="transformFeedbackObj"></param>
public void Render(ControlMode controlMode, TransformFeedbackObject transformFeedbackObj)
{
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();
foreach (var vao in this.VertexArrayObjects)
{
transformFeedbackObj.Begin(vao.DrawCommand.Mode);
vao.Draw(controlMode);
transformFeedbackObj.End();
}
transformFeedbackObj.Unbind();
}
else
{
foreach (var vao in this.VertexArrayObjects)
{
vao.Draw(controlMode);
}
}
stateList.Off();
// 解绑shader
program.Unbind();
}
/// <summary>
///
/// </summary>
/// <param name="transformFeedbackObj"></param>
public void Render(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();
transformFeedbackObj.End();
transformFeedbackObj.Unbind();
}
else
{
this.VertexArrayObject.Draw();
}
stateList.Off();
// 解绑shader
program.Unbind();
}
/// <summary>
///
/// </summary>
/// <param name="transformFeedbackObj"></param>
public void Render(TransformFeedbackObject transformFeedbackObj = null)
{
ShaderProgram program = this.Program;
// 绑定shader
program.Bind();
program.PushUniforms();
this.StateList.On();
if (transformFeedbackObj != null)
{
transformFeedbackObj.Bind();
transformFeedbackObj.Begin(this.VertexArrayObject.IndexBuffer.Mode);
}
this.VertexArrayObject.Draw();
if (transformFeedbackObj != null)
{
transformFeedbackObj.End();
transformFeedbackObj.Unbind();
}
this.StateList.Off();
// 解绑shader
program.Unbind();
}
/// <summary>
///
/// </summary>
/// <param name="index"></param>
/// <param name="transformFeedbackObj"></param>
public void Render(int index, TransformFeedbackObject transformFeedbackObj = null)
{
if (index < 0 || this.Methods.Length <= index)
{
throw new System.IndexOutOfRangeException();
}
this.Methods[index].Render(transformFeedbackObj);
}
/// <summary>
///
/// </summary>
/// <param name="transformFeedbackObj"></param>
/// <param name="unit"></param>
public static void Draw(this TransformFeedbackObject transformFeedbackObj, RenderUnit unit)
{
if (transformFeedbackObj == null || unit == null)
{
throw new ArgumentNullException();
}
transformFeedbackObj.Draw(unit.Program, unit.VertexArrayObject, unit.StateList);
}
/// <summary>
///
/// </summary>
/// <param name="transformFeedbackObj"></param>
public void Render(TransformFeedbackObject transformFeedbackObj)
{
this.Render(ControlMode.ByFrame, transformFeedbackObj);
}
/// <summary>
///
/// </summary>
/// <param name="transformFeedbackObj"></param>
public void Render(TransformFeedbackObject transformFeedbackObj)
{
this.Render(IndexAccessMode.ByFrame, transformFeedbackObj);
}
