public override void Draw(int viewPortWidth, int viewPortHeight)
{
UserProgram(_program);
Gl.ClearColor(0.0f, 0.5f, 1.0f, 1.0f);
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
Gl.BindTexture(TextureTarget.Texture2d, _texture1);
base.Draw(viewPortWidth, viewPortHeight);
Gl.BindVertexArray(_vertexAttrObject);
Gl.DrawArrays(PrimitiveType.Triangles, 0, _figureResult.Figure.Length);
}
static void WindowRefreshCallback(Glfw.Window window)
{
var slot = m_Slots[window];
Log("{0} to {1} at {2}: Window refresh",
m_Counter++, slot.Number, Glfw.GetTime());
Glfw.MakeContextCurrent(window);
Gl.Clear(ClearBufferMask.ColorBufferBit);
Glfw.SwapBuffers(window);
}
private void RenderFramebufferToScreen()
{
Gl.Viewport(0, 0, Constants.windowWidth, Constants.windowHeight);
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
Gl.ClearDepth(1.0f);
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
framebufferRenderShader.SetFloat("exposure", Constants.exposure);
framebufferRenderPlane.Draw(framebufferRenderShader, mainFramebuffer.ColorTexture);
}
public void ClearFrameBuffer(float r, float g, float b, float a)
{
FrameBuffer.Bind();
Gl.ClearColor(r, g, b, a);
Gl.ClearDepth(1.0f);
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
FrameBuffer.Unbind();
}
private void SurfaceView_Render(object sender, GlSurfaceViewEventArgs e)
{
GLSurfaceView glSurfaceView = (GLSurfaceView)sender;
Gl.Viewport(0, 0, glSurfaceView.Width, glSurfaceView.Height);
Gl.ClearColor(0.0f, 0.0f, 0.0f, 1.0f);
Gl.Clear(ClearBufferMask.ColorBufferBit);
Es2_Render();
}
private static void OnRenderFrame()
{
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
a += 0.008f;
DrawChessBoard(0, 0, 0, 90.6f, 90.6f, ChessboardTexrute); //Chessboard
DrawBox(21.5f, 0.0f, -18.92f, 5.73f, 2.2f, 5.32f, Matrix4.Identity, panelTexture); //1
Draw3Corner(26.54f, 2.3f, -18.38f, 4.1f, 5.1f, 5.0f, //2
Matrix4.CreateFromAxisAngle(Vector3.UnitY, -(float)Math.PI / 2), //
panelTexture, cornerTexture); //
DrawBox(22.03f, 0.0f, -7.39f, 5.12f, 1.9f, 4.51f, Matrix4.Identity, panelTexture); //3
DrawBox(23.9f, 1.9f, -6.85f, 2.87f, 3.89f, 2.05f, Matrix4.Identity, panelTexture); //4
DrawBox(13.6f, 0.0f, -18.46f, 4.3f, 2.1f, 4.51f, Matrix4.Identity, panelTexture); //5
DrawBox(14.5f, 2.1f, -17.82f, 3.0f, 3.4f, 2.87f, Matrix4.Identity, panelTexture); //6
DrawBox(12.91f, 0.0f, -6.76f, 4.7f, 1.9f, 4.51f, Matrix4.Identity, panelTexture); //7
DrawBox(23.14f, 0.0f, 23.14f, 4.71f, 1.64f, 4.5f, Matrix4.Identity, panelTexture); //8
DrawBox(22.84f, 1.64f, 24.24f, 4.51f, 3.8f, 3.28f, Matrix4.Identity, panelTexture); //9
DrawBox(25.6f, 0.0f, 31.33f, 3.69f, 1.8f, 5.32f, Matrix4.Identity, panelTexture); //10
Draw3Corner(27.85f, 1.8f, 32.97f, 4.1f, 5.1f, 5.0f, //11
Matrix4.CreateFromAxisAngle(Vector3.UnitY, (float)Math.PI), //
panelTexture, cornerTexture); //
DrawCross(12.3f, 1.9f, -6.2f, 4.8f, 5f, 3.3f, //12
Matrix4.Identity, //
panelTexture, crossTexture); //
DrawCross(12.3f, 1.9f, 23.2f, 4.8f, 5f, 3.3f, //13
Matrix4.Identity, //
panelTexture, crossTexture); //
DrawBox(7.5f, 0.0f, 31.33f, 3.69f, 6.3f, 5.32f, Matrix4.Identity, panelTexture); //14
DrawBox(13.2f, 0.0f, 31.33f, 3.69f, 5.5f, 5.32f, Matrix4.Identity, panelTexture); //15
DrawBox(2.9f, 0.0f, 1.3f, 4.7f, 1.9f, 4.51f, Matrix4.Identity, panelTexture); //16
DrawBox(3.6f, 1.9f, 2.1f, 4.9f, 5.0f, 3.3f, Matrix4.Identity, panelTexture); //17
DrawBox(4.0f, 6.9f, 3.5f, 4.0f, 3.0f, 2.7f, //18
Matrix4.CreateFromAxisAngle(Vector3.UnitY, (float)Math.PI / 4), panelTexture); //
DrawBox(3.6f, 1.7f, 12.8f, 4.9f, 5.0f, 3.3f, Matrix4.Identity, panelTexture); //19
DrawBox(4.0f, 6.7f, 14.2f, 4.0f, 3.0f, 2.7f, //20
Matrix4.CreateFromAxisAngle(Vector3.UnitY, (float)Math.PI / 4), panelTexture); //
DrawBox(-7.4f, 0.0f, 1.3f, 5.7f, 1.9f, 6.5f, Matrix4.Identity, panelTexture); //21
DrawCylinder(-4.55f, 1.9f, 4.55f, 2.35f, 5, 30, //22
Matrix4.CreateFromAxisAngle(Vector3.UnitY, -(float)Math.PI / 2), //
cyrcleTexture, panelTexture); //
DrawBox(-7.4f, 0.0f, 11.0f, 5.7f, 1.9f, 6.5f, Matrix4.Identity, panelTexture); //23
DrawCylinder(-4.55f, 1.9f, 13.95f, 2.35f, 5, 30, //24
Matrix4.CreateFromAxisAngle(Vector3.UnitY, -(float)Math.PI / 2), //
cyrcleTexture, panelTexture); //
DrawSphere(-4.55f, 8.5f, 4.55f, 1.9f, n, //25
Matrix4.CreateFromAxisAngle(Vector3.UnitY, -(float)Math.PI), sphereTexture); //
DrawSphere(-4.55f, 8.5f, 14.1f, 1.9f, n, //26
Matrix4.CreateFromAxisAngle(Vector3.UnitY, -(float)Math.PI), sphereTexture); //
DrawBox(-23f, 0.0f, 20.2f, 4.3f, 2.1f, 4.51f, Matrix4.Identity, panelTexture); //27
DrawBox(-22f, 2.1f, 20.2f, 3.0f, 3.4f, 2.87f, Matrix4.Identity, panelTexture); //28
DrawBox(-22f, 2.1f, 25.2f, 5.5f, 4.5f, 2.87f, Matrix4.Identity, panelTexture); //28
//DrawSphere(20, 5, -30, 3, n, Matrix4.CreateFromAxisAngle(Vector3.UnitY, -a), sphereTexture);
Glut.glutSwapBuffers();
}
public override void Draw(int viewPortWidth, int viewPortHeight)
{
UserProgram(_program);
Gl.ClearColor(0.0f, 0.5f, 1.0f, 1.0f);
Gl.Clear(ClearBufferMask.ColorBufferBit);
base.Draw(viewPortWidth, viewPortHeight);
int vertexCount = _figureResult.Figure.Length / _figureResult.VertexPerLineCount;
Gl.BindVertexArray(_vertexAttrObject);
Gl.DrawArrays(PrimitiveType.Triangles, 0, vertexCount);
}
/// <summary>
/// Clears the render context with a certain color and alpha value. Since this also
/// clears the stencil buffer, the stencil reference value is also reset to '0'.
/// </summary>
public void Clear(uint rgb = 0, float alpha = 0.0f)
{
ApplyRenderTarget();
float red = ColorUtil.GetR(rgb) / 255.0f;
float green = ColorUtil.GetG(rgb) / 255.0f;
float blue = ColorUtil.GetB(rgb) / 255.0f;
Gl.ClearColor(red, green, blue, alpha);
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.StencilBufferBit | ClearBufferMask.DepthBufferBit);
}
// Render loop
private void NativeWindow_Render(object sender, NativeWindowEventArgs e)
{
OpenGL.CoreUI.NativeWindow nativeWindow = (OpenGL.CoreUI.NativeWindow)sender;
Gl.Viewport(0, 0, (int)nativeWindow.Width, (int)nativeWindow.Height);
Gl.Clear(ClearBufferMask.ColorBufferBit);
ERROR_CODE err = ERROR_CODE.FAILURE;
if (viewer.isAvailable() && zedCamera.Grab(ref runtimeParameters) == ERROR_CODE.SUCCESS)
{
if (zedMat.IsInit())
{
// Retrieve left image
err = zedCamera.RetrieveImage(zedMat, sl.VIEW.LEFT, sl.MEM.CPU);
// Update pose data (used for projection of the mesh over the current image)
tracking_state = zedCamera.GetPosition(ref cam_pose);
if (tracking_state == POSITIONAL_TRACKING_STATE.OK)
{
timer++;
if (userAction.hit)
{
Vector2 imageClick = new Vector2((float)userAction.hitCoord.X * (float)zedCamera.ImageWidth, (float)userAction.hitCoord.Y * (float)zedCamera.ImageHeight);
findPlaneStatus = zedCamera.findPlaneAtHit(ref plane, imageClick);
if (findPlaneStatus == ERROR_CODE.SUCCESS)
{
zedCamera.convertHitPlaneToMesh(planeMeshVertices, planeMeshTriangles, out nbVertices, out nbTriangles);
}
userAction.clear();
}
//if 500ms have spend since last request (for 60fps)
if (timer % 30 == 0 && userAction.pressSpace)
{
// Update pose data (used for projection of the mesh over the current image)
Quaternion priorQuat = Quaternion.Identity;
Vector3 priorTrans = Vector3.Zero;
findPlaneStatus = zedCamera.findFloorPlane(ref plane, out float playerHeight, priorQuat, priorTrans);
if (findPlaneStatus == ERROR_CODE.SUCCESS)
{
zedCamera.convertFloorPlaneToMesh(planeMeshVertices, planeMeshTriangles, out nbVertices, out nbTriangles);
}
userAction.clear();
}
}
if (findPlaneStatus == ERROR_CODE.SUCCESS)
{
viewer.updateMesh(planeMeshVertices, planeMeshTriangles, nbVertices, nbTriangles, plane.Type, plane.Bounds, userAction);
}
viewer.updateImageAndState(zedMat, cam_pose, tracking_state);
viewer.render();
}
}
}
protected override void OnDraw()
{
// Clear Depth Buffer
Gl.Clear(ClearBufferMask.DepthBufferBit);
// Get camera matrix
Camera camera = SceneManager.Instance.CurrentScene.CurCamera;
Matrix4f cameraMatrix = camera.Perspective * camera.View;
DrawEntities(cameraMatrix);
}
private static void OnRenderFrame()
{
// set up the OpenGL viewport and clear both the color and depth bits
Gl.Viewport(0, 0, Window.Width, Window.Height);
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
// draw the user interface after everything else
OpenGL.UI.UserInterface.Draw();
// finally, swap the back buffer to the front so that the screen displays
Window.SwapBuffers();
}
// method called when Render is requested via Invalidate
private void glControl1_Render(object sender, OpenGL.GlControlEventArgs e)
{
Control senderControl = (Control)sender;
Gl.Viewport(0, 0, senderControl.ClientSize.Width, senderControl.ClientSize.Height);
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
GraphicsHandler.SetDrawingColor1();
GcodeHandler.RedrawFullPicture();
GraphicsHandler.SetDrawingColor2();
GcodeHandler.RedrawCompletedPicture();
}
private void NativeWindow_Render(object sender, NativeWindowEventArgs e)
{
using (var lastFrame = visualizerData.TakeFrameWithOwnership())
{
if (lastFrame == null)
{
return;
}
NativeWindow nativeWindow = (NativeWindow)sender;
Gl.Viewport(0, 0, (int)nativeWindow.Width, (int)nativeWindow.Height);
Gl.Clear(ClearBufferMask.ColorBufferBit);
// Update model/view/projective matrices in shader
var proj = Matrix4x4.CreatePerspectiveFieldOfView(ToRadians(65.0f), (float)nativeWindow.Width / nativeWindow.Height, 0.1f, 150.0f);
var view = Matrix4x4.CreateLookAt(Vector3.Zero, Vector3.UnitZ, -Vector3.UnitY);
SphereRenderer.View = view;
SphereRenderer.Projection = proj;
CylinderRenderer.View = view;
CylinderRenderer.Projection = proj;
PointCloudRenderer.View = view;
PointCloudRenderer.Projection = proj;
PointCloud.ComputePointCloud(lastFrame.Capture.Depth, ref pointCloud);
PointCloudRenderer.Render(pointCloud, new Vector4(1, 1, 1, 1));
for (uint i = 0; i < lastFrame.NumberOfBodies; ++i)
{
var skeleton = lastFrame.GetBodySkeleton(i);
var bodyId = lastFrame.GetBodyId(i);
var bodyColor = BodyColors.GetColorAsVector(bodyId);
for (int jointId = 0; jointId < (int)JointId.Count; ++jointId)
{
var joint = skeleton.GetJoint(jointId);
// Render the joint as a sphere.
const float radius = 0.024f;
SphereRenderer.Render(joint.Position / 1000, radius, bodyColor);
if (JointConnections.JointParent.TryGetValue((JointId)jointId, out JointId parentId))
{
// Render a bone connecting this joint and its parent as a cylinder.
CylinderRenderer.Render(joint.Position / 1000, skeleton.GetJoint((int)parentId).Position / 1000, bodyColor);
}
}
}
}
}
private static void OnRenderFrame()
{
watch.Stop();
float deltaTime = (float)watch.ElapsedTicks / System.Diagnostics.Stopwatch.Frequency;
watch.Restart();
// set up the viewport and clear the previous depth and color buffers
Gl.Viewport(0, 0, width, height);
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
// make sure the shader program and texture are being used
Gl.UseProgram(program.ProgramID);
Gl.BindTexture(particleTexture);
// update our particle list
for (int i = 0; i < particles.Count; i++)
{
particles[i].Update(deltaTime);
//if (particles[i].Life < 0) particles[i] = new Particle(Vector3.Zero);
if (particles[i].Life < 0)
{
particles[i] = new Particle(new Vector3((float)generator.NextDouble() * 200 - 100, 6, 0));
}
particlePositions[i] = particles[i].Position;
}
// delete our previous particle positions (if applicable) and then create a new VBO
if (particleVertices != null)
{
particleVertices.Dispose();
}
particleVertices = new VBO <Vector3>(particlePositions);
// bind the VBOs to their shader attributes
Gl.BindBufferToShaderAttribute(particleVertices, program, "vertexPosition");
Gl.BindBufferToShaderAttribute(particleColors, program, "vertexColor");
Gl.BindBuffer(particlePoints);
// enable point sprite mode (which enables the gl_PointCoord value)
Gl.Enable(EnableCap.PointSprite);
Gl.DrawElements(BeginMode.Points, particlePoints.Count, DrawElementsType.UnsignedInt, IntPtr.Zero);
Gl.Disable(EnableCap.PointSprite);
// bind the font program as well as the font texture
Gl.UseProgram(fontProgram.ProgramID);
Gl.BindTexture(font.FontTexture);
// draw the tutorial information, which is static
information.Draw();
Glut.glutSwapBuffers();
}
private void GraphicsControl_Draw(object sender, GraphicsControlEventArgs e)
{
GraphicsContext ctx = e.Context;
IGraphicsSurface fb = e.Framebuffer;
Gl.Viewport(0, 0, (int)fb.Width, (int)fb.Height);
Gl.Clear(ClearBufferMask.ColorBufferBit);
ctx.Bind(_Program);
_Program.SetUniform(ctx, "hal_ModelViewProjection", new OrthoProjectionMatrix(0.0f, 1.0f, 0.0f, 1.0f, 0.0f, 1.0f));
_VertexArray.Draw(ctx, _Program);
}
public void Run()
{
while (GLFW.WindowShouldClose(window) == 0)
{
Gl.ClearColor(0.0f, 0.0f, 0.0f, 0.0f);
Gl.Clear(ClearBufferMask.ColorBufferBit);
// Drawing
GLFW.SwapBuffers(window);
GLFW.PollEvents();
}
}
public void RenderFramebuffer()
{
var cameraComponent = MainCamera.GetComponent <CameraComponent>();
Gl.Viewport(0, 0, GameSettings.GameResolutionX, GameSettings.GameResolutionY);
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
Gl.ClearDepth(1.0f);
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
framebufferRenderShader.SetFloat("exposure", RenderManager.Instance.exposure);
framebufferRenderShader.SetInt("tonemapOperator", (int)RenderManager.Instance.tonemapOperator);
framebufferRenderPlane.Draw(framebufferRenderShader, cameraComponent.Framebuffer.ColorTexture);
}
private void glControl_Render(object sender, GlControlEventArgs e)
{
Gl.Clear(ClearBufferMask.ColorBufferBit);
Gl.Begin(PrimitiveType.Polygon);
Gl.Color3(1.0f, 0.0f, 0.0f); Gl.Vertex2(0.5f, 0.1f);
Gl.Color3(1.0f, 1.0f, 0.0f); Gl.Vertex2(0.333333f, 0.333333f);
Gl.Color3(0.0f, 1.0f, 0.0f); Gl.Vertex2(0.333333f, 0.666666f);
Gl.Color3(0.0f, 1.0f, 1.0f); Gl.Vertex2(0.5f, 0.9f);
Gl.Color3(0.0f, 0.0f, 1.0f); Gl.Vertex2(0.666666f, 0.666666f);
Gl.Color3(1.0f, 0.0f, 1.0f); Gl.Vertex2(0.666666f, 0.333333f);
Gl.End();
}
public static void Tick(FrameState state)
{
Gl.Clear(Gl.ClearBufferMask.Color);
Gl.DrawArrays(Gl.PrimitiveType.Triangles, 0, 3);
Sdl.Gl.SwapWindow(Application.window);
/*
* if (Application.inputs.Mouse.Left.IsPressed)
* {
* Console.WriteLine("left mouse button is pressed");
* }
*/
}
static void Main()
{
try {
string envDebug = Environment.GetEnvironmentVariable("DEBUG");
if (envDebug == "GL")
{
KhronosApi.Log += delegate(object sender, KhronosLogEventArgs e) {
Console.WriteLine(e.ToString());
};
KhronosApi.LogEnabled = true;
}
// RPi runs on EGL
Egl.IsRequired = true;
if (Egl.IsAvailable == false)
{
throw new InvalidOperationException("EGL is not available. Aborting.");
}
using (VideoCoreWindow nativeWindow = new VideoCoreWindow()) {
using (DeviceContext eglContext = DeviceContext.Create(nativeWindow.Display, nativeWindow.Handle)) {
eglContext.ChoosePixelFormat(new DevicePixelFormat(32));
IntPtr glContext = eglContext.CreateContext(IntPtr.Zero);
eglContext.MakeCurrent(glContext);
Initialize();
Gl.Viewport(0, 0, 1920, 1080);
Gl.ClearColor(0.0f, 0.0f, 0.0f, 1.0f);
while (true)
{
Gl.Clear(ClearBufferMask.ColorBufferBit);
Draw();
eglContext.SwapBuffers();
break;
}
System.Threading.Thread.Sleep(10000);
Terminate();
eglContext.DeleteContext(glContext);
}
}
} catch (Exception exception) {
Console.WriteLine(exception.ToString());
}
}
private static void OnRenderFrame()
{
watch.Stop();
float deltaTime = (float)watch.ElapsedTicks / System.Diagnostics.Stopwatch.Frequency;
watch.Restart();
// perform rotation of the cube depending on the keyboard state
if (autoRotate)
{
xangle += deltaTime / 2;
yangle += deltaTime;
}
if (right)
{
yangle += deltaTime;
}
if (left)
{
yangle -= deltaTime;
}
if (up)
{
xangle -= deltaTime;
}
if (down)
{
xangle += deltaTime;
}
// set up the viewport and clear the previous depth and color buffers
Gl.Viewport(0, 0, width, height);
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
// make sure the shader program and texture are being used
Gl.UseProgram(program);
Gl.BindTexture(glassTexture);
// set up the model matrix and draw the cube
program["model_matrix"].SetValue(Matrix4.CreateRotationY(yangle) * Matrix4.CreateRotationX(xangle));
program["enable_lighting"].SetValue(lighting);
Gl.BindBufferToShaderAttribute(cube, program, "vertexPosition");
Gl.BindBufferToShaderAttribute(cubeNormals, program, "vertexNormal");
Gl.BindBufferToShaderAttribute(cubeUV, program, "vertexUV");
Gl.BindBuffer(cubeQuads);
Gl.DrawElements(BeginMode.Quads, cubeQuads.Count, DrawElementsType.UnsignedInt, IntPtr.Zero);
Glut.glutSwapBuffers();
}
private static void NativeWindow_Render(object sender, NativeWindowEventArgs e)
{
NativeWindow nativeWindow = (NativeWindow)sender;
Gl.Viewport(0, 0, (int)nativeWindow.Width, (int)nativeWindow.Height);
Gl.Clear(ClearBufferMask.ColorBufferBit);
Gl.UseProgram(_CubeEdgeProgram);
// Compute MVP
PerspectiveProjectionMatrix proj = new PerspectiveProjectionMatrix(60.0f, (float)nativeWindow.Width / nativeWindow.Height, 0.5f, 1e6f);
ModelMatrix view = new ModelMatrix();
ModelMatrix model = new ModelMatrix();
model.RotateY(_Angle);
model.RotateZ(_Angle);
view.LookAtTarget(Vertex3f.One * 7.0f, Vertex3f.Zero, Vertex3f.UnitY);
Gl.BindVertexArray(_CubeVao);
Gl.UniformMatrix4(_CubeEdgeProgram_Location_uMVP, false, (proj * view * model).ToArray());
foreach (float scale4d in new float[] { 64.0f, 32.0f, 16.0f, 8.0f, 4.0f, 2.0f, 1.0f, 0.5f, 0.25f, 0.125f })
{
Gl.Uniform1(_CubeEdgeProgram_Location_uScale4D, scale4d * _Zooom);
Gl.Uniform4(_CubeEdgeProgram_Location_uColor, 0.0f, 0.3f, 1.0f, Math.Min(1.0f, scale4d * _Zooom / 2.0f));
Gl.DrawElements(PrimitiveType.Lines, _CubeEdges.Length, DrawElementsType.UnsignedShort, IntPtr.Zero);
}
_Angle += 360.0f / (25.0f * 5);
_Zooom -= 0.025f;
if (_Zooom < 0.5f)
{
_Zooom = 1.0f;
}
// Save PNG frame
if (_FrameNo < 125)
{
using (Bitmap bitmap = new Bitmap((int)nativeWindow.Width, (int)nativeWindow.Height, System.Drawing.Imaging.PixelFormat.Format24bppRgb)) {
BitmapData bitmapData = bitmap.LockBits(new Rectangle(Point.Empty, bitmap.Size), ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
Gl.ReadPixels(0, 0, (int)nativeWindow.Width, (int)nativeWindow.Height, OpenGL.PixelFormat.Bgr, PixelType.UnsignedByte, bitmapData.Scan0);
bitmap.Save(String.Format("Frame_{0:D3}.png", _FrameNo++));
}
}
}
private static void OnRender()
{
//Set up the OpenGL viewport
Gl.Viewport(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);
//Clear both the color and depth bits
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
BkgRender();
CubeRender();
//Flush buffer to display
Gl.Flush();
//Glut.glutSwapBuffers();
}
protected override void OnUpdateFrame(FrameEventArgs e)
{
base.OnUpdateFrame(e);
if (IsFrameReady())
{
//Trace.WriteLine("Frame done.");
//break;
return;
}
var sw = Stopwatch.StartNew();
RayTrace();
sw.Stop();
mTimeElapsed += (float)(sw.Elapsed.TotalSeconds);
mNumFrames++;
mNumRaysTraced += RaysTracedPerFrame;
sw.Restart();
if (mTimeElapsed >= 0.25f)
{
float raysPerSec = mNumRaysTraced / mTimeElapsed;
raysPerSec /= 1000.0f * 1000.0f;
mText = string.Format("ray-trace: {0:.00} ms : {1:.00} MRays/sec {2}", mTimeElapsed / mNumFrames * 1000.0f, raysPerSec, GetStats());
mTimeElapsed = 0.0f;
mNumFrames = 0;
mNumRaysTraced = 0;
}
GL.Clear(ClearBufferMask.ColorBufferBit);
// Initialize state
Gl.MatrixMode(MatrixMode.Projection);
Gl.LoadIdentity();
Gl.Ortho(0, 1, 0, 1, -1, 1);
Gl.MatrixMode(MatrixMode.Modelview);
Gl.LoadIdentity();
Gl.Viewport(0, 0, Width, Height);
Gl.ClearColor(BackBufferColor.X, BackBufferColor.Y, BackBufferColor.Z, 1);
Gl.Clear(ClearBufferMask.ColorBufferBit);
Display();
System.Threading.Thread.Sleep(10);
DrawText(15, 15, mText);
this.Title = mText;
sw.Stop();
mTimeDelta = (float)(sw.Elapsed.TotalSeconds);
}
public void GameLoop()
{
// Initialize OpenGL and GLFW
Gl.Initialize();
Glfw.Init();
// Set Window Hints
Glfw.WindowHint(Hint.ClientApi, ClientApi.OpenGL);
Glfw.WindowHint(Hint.ContextVersionMajor, 4);
Glfw.WindowHint(Hint.ContextVersionMinor, 6);
Glfw.WindowHint(Hint.OpenglProfile, Profile.Core);
Glfw.WindowHint(Hint.Doublebuffer, true);
Glfw.WindowHint(Hint.Decorated, true);
Window = Glfw.CreateWindow(Width, Height, WindowTitle,
Monitor.None, Window.None
);
if (Window == Window.None)
{
Console.Error.WriteLine("Failed to create GLFW Window");
Glfw.Terminate();
Environment.Exit(1001);
}
Glfw.MakeContextCurrent(Window);
Glfw.SwapInterval(1);
Gl.Viewport(0, 0, Width, Height);
Glfw.SetFramebufferSizeCallback(Window, OnResizeCallback);
Init();
while (!Glfw.WindowShouldClose(Window))
{
PreUpdate();
Gl.ClearColor(BackgroundColor.red, BackgroundColor.green,
BackgroundColor.blue, BackgroundColor.alpha);
Gl.Clear(ClearBufferMask.ColorBufferBit);
Draw();
Update();
Glfw.SwapBuffers(Window);
Glfw.PollEvents();
}
Quit();
Glfw.Terminate();
}
private void Render_Render(object sender, GlControlEventArgs e)
{
//System.Diagnostics.Debug.WriteLine("render");
//code executed to render the update iguess
//not sure how this is different to onupdate
//fill the viewport with a color
//basically wipe it clean for a new rendering frame
Gl.Clear(ClearBufferMask.ColorBufferBit);
//its a matrix. but you dont need to know how matrixes work.
//the gist of it is that when you multiply a bunch of stuff together you can make 3D
//opengl does all that hard stuff, you just need to know how to use the function calls
//the projection matrix turns the 3D space into what your camera sees
//this particular function tells OpenGL to turn its 3D world into a flat 2D image
// that has these dimensions:
// 100%
// 100% 100%
// 100%
//aka it takes up all of our rendering window.
Matrix4x4f projection = Matrix4x4f.Ortho2D(-1.0f, 1.0f, -1.0f, 1.0f);
//the translated matrix moves the model around in 3D space
//so we'll take our triangle model and move it
//to apply multiple matrices to something, you just multiple them together
//so we're multiplying that by a matrix that rotates the model on the Z axis
Matrix4x4f model = Matrix4x4f.RotatedZ(angleZ) * Matrix4x4f.RotatedY(angleY) * Matrix4x4f.RotatedX(angleX) * Matrix4x4f.Translated(-0.5f, -0.5f, 0.0f);
//tell OpenGL to use this shader
Gl.UseProgram(shaderProgram.ProgramID);
//send a matrix to our shader program. it will send it to the variable in the shader that we located and
// saved into attribUniformLoc
//a uniform is just a variable in the shader that we manually send data to, instead of the shader
// reading that data from a buffer in the gpu vram
//the matrix we're sending is our projection matrix multiplied by our model matrix
//the model matrix puts the triangle in the right spot in our 3D world, the projection matrix
// makes it draw to the camera properly
Gl.UniformMatrix4f(shaderProgram.attribUniformLoc, 1, false, model * projection);
//tell OpenGL to use the state data saved in this Vertex Array Object
Gl.BindVertexArray(vao.VAO_ID);
//draw the vertexes
//it takes the data from the activated buffers and processes it according to how we've told it to interpret it
//we want to draw triangles, so it will connect every set of 3 vertex data points
//we're starting from position 0 in the buffers, and processing 3 vertexes
Gl.DrawArrays(PrimitiveType.Triangles, 0, 12);
//unbind the vao. its good practice to do this, so you dont accidentally change your vao's state
Gl.BindVertexArray(0);
}
/// <summary>
/// Runs the engine
/// </summary>
public void RunEngine()
{
Initialise();
Start();
OnStart();
Debug.InitialiseDebug();
// The variables for the delta time
DateTime t1, t2;
t1 = t2 = DateTime.Now;
while (running)
{
// Calculate the delta time
t2 = DateTime.Now;
float elapsedDelta = (float)(t2 - t1).TotalSeconds;
t1 = t2;
// Set delta and fos
Time.DeltaTime = elapsedDelta;
Time.FPS = (int)(1.0f / elapsedDelta);
// Clear color and depth buffer | Set the clear color for each frame
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
Gl.ClearColor(0f, 0f, 0.7f, 1.0f);
OnUpdate();
Update();
// Render here
Draw();
running = !window.ShouldWindowClose();
if (Debug.DoDebug)
{
ErrorCode glError = Gl.GetError();
if (glError != ErrorCode.NoError)
{
Debug.Log("Opengl Error: " + glError + glError.ToString(), Debug.DebugLayer.Render, Debug.DebugLevel.Error);
}
}
}
window.Destroy();
}
public static void Draw()
{
if (Model == null)
{
return;
}
Roller.Update();
if (ViewportIsDirty)
{
Gl.Viewport(0, 0, ViewportWidth, ViewportHeight);
CameraDistance = CAMERA_DISTANCE_RATIO * Model.BoundingRadius;
ViewportCanonicalScale = 2f / Math.Min(ViewportWidth, ViewportHeight);
var s = (double)Model.BoundingRadius * ViewportCanonicalScale / 2;
Gl.MatrixMode(MatrixMode.Projection);
Gl.LoadIdentity();
Gl.Frustum(-ViewportWidth * s, ViewportWidth * s, -ViewportHeight * s, ViewportHeight * s, CameraDistance - Model.BoundingRadius, CameraDistance + Model.BoundingRadius);
//Gl.Ortho(-ViewportWidth * s, ViewportWidth * s, -ViewportHeight * s, ViewportHeight * s, distance - MeshRadious, distance + MeshRadious);
Gl.Translate(0f, 0f, -CameraDistance);
}
Gl.ClearColor(0.0f, 0.0f, 0.0f, 1.0f);
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
Gl.MatrixMode(MatrixMode.Modelview);
Gl.LoadIdentity();
Gl.Disable(EnableCap.Normalize);
Gl.Enable(EnableCap.Multisample);
Gl.Disable(EnableCap.Blend);
Gl.Disable(EnableCap.Dither);
Gl.BlendFunc(BlendingFactor.SrcAlpha, BlendingFactor.OneMinusSrcAlpha);
Gl.Enable(EnableCap.Lighting);
Gl.Enable(EnableCap.Light0);
Gl.Light(LightName.Light0, LightParameter.Ambient, new[] { 0.8f, 0.8f, 0.8f, 1.0f });
Gl.Light(LightName.Light0, LightParameter.Specular, new[] { 0.5f, 0.5f, 0.5f, 1.0f });
Gl.Light(LightName.Light0, LightParameter.Diffuse, new[] { 1.0f, 1.0f, 1.0f, 1.0f });
Gl.Light(LightName.Light0, LightParameter.Position, new[] { 0.3f, 0.5f, 1.0f, 0.0f });
Gl.MultMatrix(Roller.getMatrix().ToArray());
Model.Draw();
}
public void RenderShadows()
{
Gl.Disable(EnableCap.CullFace);
Gl.Viewport(0, 0, (int)light.ShadowMap.Resolution.x, (int)light.ShadowMap.Resolution.y);
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, light.ShadowMap.DepthMapFbo);
Gl.Clear(ClearBufferMask.DepthBufferBit);
light.Render();
testModel.DrawShadows(light, depthShader);
Gl.Enable(EnableCap.CullFace);
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
}
private void RenderScene(object sender, GlControlEventArgs e)
{
if (!this.initialized)
{
if (this.BeforeRenderInitialize != null)
{
this.BeforeRenderInitialize();
}
Gl.Initialize();
Gl.ShadeModel(ShadingModel.Flat);
Gl.Disable(EnableCap.Lighting);
Gl.Enable(EnableCap.DepthTest);
Gl.DepthMask(true);
Gl.Hint(HintTarget.PerspectiveCorrectionHint, HintMode.Fastest);
Gl.Hint(HintTarget.PolygonSmoothHint, HintMode.Fastest);
Gl.Hint(HintTarget.PointSmoothHint, HintMode.Fastest);
Gl.Hint(HintTarget.LineSmoothHint, HintMode.Fastest);
Gl.Hint(HintTarget.TextureCompressionHint, HintMode.Fastest);
Gl.DepthFunc(DepthFunction.Lequal);
Gl.BlendFunc(BlendingFactor.SrcAlpha, BlendingFactor.OneMinusSrcAlpha);
Gl.Enable(EnableCap.Blend);
if (this.AfterRenderInitialize != null)
{
this.AfterRenderInitialize();
}
this.initialized = true;
}
#region Begin Render
Gl.Viewport(0, 0, this.openGlControl.Width, this.openGlControl.Height);
Gl.ClearColor(this.ClearColor.Rf, this.ClearColor.Gf, this.ClearColor.Bf, this.ClearColor.Af);
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
Gl.MatrixMode(MatrixMode.Projection);
Gl.LoadIdentity();
Gl.Ortho(-1.0, 1.0, 1.0, -1.0, -1.0, 1.0);
Gl.MatrixMode(MatrixMode.Modelview);
Gl.LoadIdentity();
#endregion
if (this.RenderFrame != null)
{
this.RenderFrame();
}
this.renderPanel.SuspendLayout();
this.renderPanel.Image = this.CaptureScaledBitmap(this.renderPanel.Width, this.renderPanel.Height);
this.renderPanel.ResumeLayout();
}