private void RenderPatternCube()
{
PatternShaderProgram.Activate();
GL.PushMatrix();
GL.Scale(.35, .35, .35);
GLHelpers.Cube2D(1.99f);
GL.PopMatrix();
ShaderProgram.DisableShaders();
}
/// <summary>Setup the various GL crap</summary>
private void InitializeGL()
{
GLHelpers.ClearColor(ClearColor);
GL.Enable(EnableCap.DepthTest);
GL.Enable(EnableCap.Blend);
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha);
GL.ShadeModel(ShadingModel.Smooth);
GL.Enable(EnableCap.PolygonSmooth);
//transformInner.Location = new Vector3(0, 0, -4);
//transformInner.Scale = new Vector3(.8f, .8f, .8f);
InitializeView();
}
private void RenderTexturedPlane()
{
GL.PushAttrib(AttribMask.TextureBit | AttribMask.EnableBit);
LightingShaderProgram.Texture1 = FileTexture;
//FileTexture.Bind();
LightingShaderProgram.Activate();
GL.PushMatrix();
float width = FileTexture.Picture.Width / (float)FileTexture.Picture.Height;
GLHelpers.PlaneMesh(width, 1, 3, -0.25f);
GL.PopMatrix();
ShaderProgram.DisableShaders();
GL.PopAttrib();
}
private void GLElement_GLRenderStarted(object sender, EventArgs e)
{
#region FBO start
if (UseFrameBuffer)
{
FBO.Activate();
FBO.FBOInitializeView(GLElement1.PerspectiveProjection, TransformOuter.Location.Z);
}
else
{
FBO.Deactivate();
}
#endregion
RenderToBuffer();
#region FBO finish
if (UseFrameBuffer)
{
FBO.Deactivate();
GLElement1.InitializeView();
GL.ClearColor(0, .3f, .5f, 1);
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
GL.LoadIdentity();
// Now bind the texture to use it
GL.ActiveTexture(TextureUnit.Texture0);
FBO.Bind();
GLHelpers.Color4(Colors.Black); // to prevent it from being transparent
// Tranform
TransformOuter.Apply();
// Render with shader
LightingShaderProgram.Texture1 = FBO.Texture;
LightingShaderProgram.Activate();
//GLHelpers.Plane(1.3, 1.3, 0); // put it on a plane
GLHelpers.Cube2D(1.7); // put it on a cube
// Do some cleanup
TransformOuter.Remove();
Texture2D.Disable2DTextures();
ShaderProgram.DisableShaders();
}
#endregion
}
/// <summary>Render the inner scene</summary>
private void RenderToBuffer()
{
// transform
GL.MatrixMode(MatrixMode.Modelview);
GL.LoadIdentity();
GLElement1.TransformInner.Apply();
// set up
GLHelpers.ClearColor(GLElement1.ClearColor);
GLHelpers.Color4(Colors.White);
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
GL.Enable(EnableCap.DepthTest);
GL.Enable(EnableCap.Blend);
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha);
GL.ShadeModel(ShadingModel.Smooth);
GL.Enable(EnableCap.PointSmooth);
// render the content
if (chkSFM.IsChecked.HasValue && chkSFM.IsChecked.Value)
{
RenderSFM();
}
if (chkPatternCube.IsChecked.HasValue && chkPatternCube.IsChecked.Value)
{
RenderPatternCube();
}
if (chkTexturedCube.IsChecked.HasValue && chkTexturedCube.IsChecked.Value)
{
RenderTexturedCube(chkLightCubes.IsChecked.HasValue & chkLightCubes.IsChecked.Value);
}
if (chkTexturedPlane.IsChecked.HasValue && chkTexturedPlane.IsChecked.Value)
{
RenderTexturedPlane();
}
if (chkMouseControl.IsChecked.HasValue && chkMouseControl.IsChecked.Value)
{
DrawUserStudySelection();
}
// cleanup
GLElement1.TransformInner.Remove();
ShaderProgram.DisableShaders();
GL.ActiveTexture(TextureUnit.Texture0);
Texture2D.Disable2DTextures();
}
private void RenderTexturedCube(bool useShader)
{
GL.PushAttrib(AttribMask.TextureBit | AttribMask.EnableBit);
if (useShader)
{
GLHelpers.Color4(Colors.Transparent);
LightingShaderProgram.Texture1 = CirclesTexture;
LightingShaderProgram.Activate();
}
else
{
GLHelpers.Color4(Colors.Black);
GL.TexEnv(TextureEnvTarget.TextureEnv, TextureEnvParameter.TextureEnvMode, (int)TextureEnvMode.Replace);
//GL.TexEnv(TextureEnvTarget.TextureEnv, TextureEnvParameter.TextureEnvMode, (int)TextureEnvMode.Decal);
CirclesTexture.Bind();
}
var transformCube = new TransformGL(new Vector3(-.4f, -.4f, 0));
transformCube.Apply();
GLHelpers.Cube2D(.5);
transformCube.Remove();
transformCube.Location = new Vector3(0, 0, 0);
transformCube.Apply();
GLHelpers.Cube2D(.25);
transformCube.Remove();
transformCube.Location = new Vector3(.2f, .2f, 0);
transformCube.Apply();
GLHelpers.Cube2D(.125);
transformCube.Remove();
transformCube.Location = new Vector3(.3f, .3f, 0);
transformCube.Apply();
GLHelpers.Cube2D(.06125);
transformCube.Remove();
// cleanup
ShaderProgram.DisableShaders();
GL.PopAttrib();
}
/// <summary>
/// Creates the frame buffer.
/// </summary>
protected override void CreateFrameBuffer()
{
if (this.counter > 1)
{
return;
}
this.counter++;
if (this.isPaused)
{
return;
}
if (!UIDevice.CurrentDevice.CheckSystemVersion(8, 0) &&
(UIApplication.SharedApplication.StatusBarOrientation == UIInterfaceOrientation.LandscapeLeft || UIApplication.SharedApplication.StatusBarOrientation == UIInterfaceOrientation.LandscapeRight))
{
this.Bounds = new RectangleF(0, 0, (float)this.Bounds.Height, (float)this.Bounds.Width);
}
this.screenWidth = (int)(this.Bounds.Width * this.ContentScaleFactor);
this.screenHeight = (int)(this.Bounds.Height * this.ContentScaleFactor);
base.CreateFrameBuffer();
if (this.depthFramebuffer > 0)
{
GL.DeleteFramebuffers(1, ref this.depthFramebuffer);
this.depthFramebuffer = 0;
}
GL.BindFramebuffer(FramebufferTarget.Framebuffer, this.Framebuffer);
GL.GenRenderbuffers(1, out this.depthFramebuffer);
GL.BindRenderbuffer(RenderbufferTarget.Renderbuffer, this.depthFramebuffer);
GL.RenderbufferStorage(RenderbufferTarget.Renderbuffer, RenderbufferInternalFormat.DepthComponent16, this.screenWidth, this.screenHeight);
GL.FramebufferRenderbuffer(FramebufferTarget.Framebuffer, FramebufferSlot.DepthAttachment, RenderbufferTarget.Renderbuffer, this.depthFramebuffer);
GLHelpers.InitExtensionList();
}
public UnoGLControl()
{
Toolkit.Init(new ToolkitOptions
{
Backend = PlatformBackend.PreferNative
});
SetStyle(ControlStyles.Opaque, true);
SetStyle(ControlStyles.UserPaint, true);
SetStyle(ControlStyles.AllPaintingInWmPaint, true);
DoubleBuffered = false;
Dock = DockStyle.Fill;
_glWindow = Utilities.CreateWindowsWindowInfo(Handle);
_glContext = GLHelpers.CreateContext(_glWindow);
_glContext.SwapInterval = 0; // We do vsync in the form
CoreWindow = new WinFormsPlatformWindow(this);
CoreGC = new WinFormsGraphicsContext(this);
GL = new GL();
}
private void DrawUserStudySelection()
{
GL.LineWidth(4);
GLHelpers.Color4(Color.FromArgb(50, 255, 0, 0));
Texture2D.Disable2DTextures();
GL.PolygonMode(MaterialFace.FrontAndBack, PolygonMode.Line);
using (OpenGL.GLDraw.Begin(BeginMode.Quads))
{
GL.Vertex3(MouseQuadrant.Left, MouseQuadrant.Top, -.02f);
GL.Vertex3(MouseQuadrant.Right, MouseQuadrant.Top, -.02f);
GL.Vertex3(MouseQuadrant.Right, MouseQuadrant.Bottom, -.02f);
GL.Vertex3(MouseQuadrant.Left, MouseQuadrant.Bottom, -.02f);
}
GLHelpers.Color4(Color.FromArgb(50, 255, 0, 0));
GL.LineWidth(12);
using (OpenGL.GLDraw.Begin(BeginMode.Quads))
{
GL.Vertex3(SelectedQuadrant.Left, SelectedQuadrant.Top, -.01f);
GL.Vertex3(SelectedQuadrant.Right, SelectedQuadrant.Top, -.01f);
GL.Vertex3(SelectedQuadrant.Right, SelectedQuadrant.Bottom, -.01f);
GL.Vertex3(SelectedQuadrant.Left, SelectedQuadrant.Bottom, -.01f);
}
GL.PolygonMode(MaterialFace.FrontAndBack, PolygonMode.Fill);
}
