/// <summary>
/// </summary>
/// <param name="arg"></param>
protected override void DoRender(RenderEventArgs arg)
{
// Set the projection matrix.(projection and view matrix actually.)
OpenGL.MatrixMode(OpenGL.GL_PROJECTION);
OpenGL.LoadIdentity();
arg.Camera.LegacyProjection();
// Set the modelview matrix.(just model matrix actually.)
OpenGL.MatrixMode(OpenGL.GL_MODELVIEW);
OpenGL.LoadIdentity();
this.LegacyTransform();
vec4 color = this.CurveColor.ToVec4();
OpenGL.Color(color.x, color.y, color.z, color.w);
this.CurveWidth.On();
//启用求值器
//必须在绘制顶点之前开启
OpenGL.Enable(OpenGL.GL_MAP2_VERTEX_3);
OpenGL.Enable(OpenGL.GL_AUTO_NORMAL);
// 计算网格
OpenGL.EvalMesh2(
(uint)this.MeshMode,
this.MinPercent.x, this.MaxPercent.x, this.MinPercent.y, this.MaxPercent.y);
this.CurveWidth.Off();
}
//int m_ParticleSize = 30;
/// <summary>
///
/// </summary>
protected override void SwitchOn()
{
int count = this.SwitchList.Count;
for (int i = 0; i < count; i++)
{
this.SwitchList[i].On();
}
OpenGL.Enable(OpenGL.GL_VERTEX_PROGRAM_POINT_SIZE);
OpenGL.Enable(OpenGL.GL_POINT_SPRITE_ARB);
OpenGL.TexEnv(OpenGL.GL_POINT_SPRITE_ARB, OpenGL.GL_COORD_REPLACE_ARB, OpenGL.GL_TRUE);
OpenGL.Hint(OpenGL.GL_POINT_SMOOTH_HINT, OpenGL.GL_NICEST);
//GL.GetDelegateFor<GL.glBlendEquation>()(GL.GL_FUNC_ADD_EXT);
//GL.GetDelegateFor<GL.glBlendFuncSeparate>()(GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA, GL.GL_ONE, GL.GL_ONE);
//float[] quadratic = { 1.0f, 0, 0, 1.0f };
//GL.PointParameter(GL.GL_POINT_DISTANCE_ATTENUATION_ARB, quadratic);
//GL.PointParameter(GL.GL_POINT_FADE_THRESHOLD_SIZE_ARB, 10.0f);
//GL.TexEnvf(GL.GL_POINT_SPRITE_ARB, GL.GL_COORD_REPLACE_ARB, GL.GL_TRUE);
//GL.PointParameter(GL.GL_POINT_SIZE_MIN_ARB, m_ParticleSize);
////GL.TexEnvi(GL.GL_POINT_SPRITE, GL.GL_COORD_REPLACE, GL.GL_TRUE);
//GL.PointParameter(GL.GL_POINT_SPRITE_COORD_ORIGIN, GL.GL_LOWER_LEFT);
}
/// <summary>
/// </summary>
/// <param name="arg"></param>
protected override void DoRender(RenderEventArgs arg)
{
// Set the projection matrix.(projection and view matrix actually.)
OpenGL.MatrixMode(OpenGL.GL_PROJECTION);
OpenGL.LoadIdentity();
arg.Camera.LegacyProjection();
// Set the modelview matrix.(just model matrix actually.)
OpenGL.MatrixMode(OpenGL.GL_MODELVIEW);
OpenGL.LoadIdentity();
this.LegacyTransform();
//必须在绘制顶点之前开启
OpenGL.Enable(OpenGL.GL_MAP1_VERTEX_3);
vec4 color = this.CurveColor.ToVec4();
OpenGL.Color(color.x, color.y, color.z, color.w);
this.CurveWidth.On();
OpenGL.Begin(this.CurveDrawMode);
float granularity = this.Granularity;
for (float i = this.MinPercent; i <= this.MaxPercent; i += granularity)
{
OpenGL.EvalCoord1f((float)i);
}
OpenGL.End();
this.CurveWidth.Off();
}
protected override void SwitchOff()
{
if (this.enableCapacityWhenSwitchOn)
{
if (!this.originalEnableCapacity)
{
OpenGL.Disable(Capacity);
}
}
else
{
if (this.originalEnableCapacity)
{
OpenGL.Enable(Capacity);
}
}
}
protected override void SwitchOn()
{
this.enableCapacityWhenSwitchOn = this.EnableCapacity;
this.originalEnableCapacity = OpenGL.IsEnabled(this.Capacity) != 0;
if (this.enableCapacityWhenSwitchOn)
{
if (!this.originalEnableCapacity)
{
OpenGL.Enable(Capacity);
}
}
else
{
if (this.originalEnableCapacity)
{
OpenGL.Disable(Capacity);
}
}
}
private void CreateRenderContext()
{
// Initialises OpenGL.
var renderContext = new FBORenderContext();
// Create the render context.
renderContext.Create(OpenGLVersion, Width, Height, 32, null);
this.renderContext = renderContext;
renderContext.MakeCurrent();
// Set the most basic OpenGL styles.
OpenGL.ShadeModel(OpenGL.GL_SMOOTH);
// 天蓝色背景
OpenGL.ClearColor(0x87 / 255.0f, 0xce / 255.0f, 0xeb / 255.0f, 0xff / 255.0f);
OpenGL.ClearDepth(1.0f);
OpenGL.Enable(OpenGL.GL_DEPTH_TEST);
OpenGL.DepthFunc(OpenGL.GL_LEQUAL);
OpenGL.Hint(OpenGL.GL_PERSPECTIVE_CORRECTION_HINT, OpenGL.GL_NICEST);
}
/// <summary>
///
/// </summary>
protected virtual void CreateRenderContext()
{
// Initialises OpenGL.
var renderContext = new FBORenderContext();
// Create the render context.
renderContext.Create(Width, Height, 32, null);
this.renderContext = renderContext;
renderContext.MakeCurrent();
// Set the most basic OpenGL styles.
OpenGL.ShadeModel(OpenGL.GL_SMOOTH);
OpenGL.ClearDepth(1.0f);
OpenGL.Enable(OpenGL.GL_DEPTH_TEST);
OpenGL.DepthFunc(OpenGL.GL_LEQUAL);
OpenGL.Hint(OpenGL.GL_PERSPECTIVE_CORRECTION_HINT, OpenGL.GL_NICEST);
if (this.designMode)
{
GLCanvasHelper.ResizeGL(this.Width, this.Height);
}
}
