/// <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="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="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();
}