public void Run()
{
using (var w = new GameWindow(720, 480, null, "ComGr", GameWindowFlags.Default, DisplayDevice.Default, 4, 0, OpenTK.Graphics.GraphicsContextFlags.ForwardCompatible))
{
var alpha = 0f;
var beta = 1f;
var gamma = 2f;
w.Load += (o, ea) =>
{
//set up opengl
GL.ClearColor(0.5f, 0.5f, 0.5f, 0);
//GL.ClearDepth(1);
GL.Enable(EnableCap.DepthTest);
GL.DepthMask(true);
//GL.DepthFunc(DepthFunction.Less);
GL.DepthRange(0, 50);
GL.Disable(EnableCap.CullFace);
GL.Enable(EnableCap.FramebufferSrgb);
GL.Enable(EnableCap.Blend);
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha);
_solidProgram = new GlProgram(@"Shaders\VertexShader.glsl", @"Shaders\FragmentShader.glsl");
_tranparentProgram = new GlProgram(@"Shaders\VertexShader.glsl", @"Shaders\FragmentShaderTransparen.glsl");
_transparentCube = Figures.CubeTransparent(_tranparentProgram);
_solidCube = Figures.Cube(_solidProgram);
//Textures
GL.PixelStore(PixelStoreParameter.UnpackAlignment, 1);
_imageTextureGlasses = new ImageTexture("Textures\\glasses.png");
_imageTextureSolid = new ImageTexture("Textures\\05.JPG");
{
//check for errors during all previous calls
var error = GL.GetError();
if (error != ErrorCode.NoError)
{
throw new Exception(error.ToString());
}
}
};
w.UpdateFrame += (o, fea) =>
{
alpha += 0.005f;
beta += 0.006f;
gamma += 0.008f;
};
w.RenderFrame += (o, fea) =>
{
//clear screen and z-buffer
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
DrawSolid(alpha, beta, gamma);
DrawTransparent(alpha, beta, gamma);
GL.DepthMask(true);
//display
w.SwapBuffers();
var error = GL.GetError();
if (error != ErrorCode.NoError)
{
throw new Exception(error.ToString());
}
};
w.Resize += (o, ea) =>
{
var r = w.Width / (float)w.Height;
_projection = Matrix4.CreatePerspectiveFieldOfView((float)Math.PI / 4, r, 0.1f, 50);
GL.Viewport(w.ClientRectangle);
};
w.Run();
}
}
public void Run()
{
using (var w = new GameWindow(720, 480, null, "ComGr", GameWindowFlags.Default, DisplayDevice.Default, 4, 0, OpenTK.Graphics.GraphicsContextFlags.ForwardCompatible))
{
var projection = Matrix4.CreatePerspectiveFieldOfView((float)Math.PI / 4, 1, 0.1f, 100);
var alpha = 0f;
var beta = 1f;
var gamma = 2f;
w.Load += (o, ea) =>
{
//set up opengl
GL.ClearColor(0.5f, 0.5f, 0.5f, 0);
//GL.ClearDepth(1);
GL.Enable(EnableCap.DepthTest);
//GL.DepthFunc(DepthFunction.Less);
GL.Disable(EnableCap.CullFace);
GL.Enable(EnableCap.FramebufferSrgb);
GL.Enable(EnableCap.Blend);
_program = new GlProgram(@"Shaders\VertexShader.glsl", @"Shaders\FragmentShader.glsl");
_cube = Figures.Cube(_program);
//Textures
GL.PixelStore(PixelStoreParameter.UnpackAlignment, 1);
_imageTexture = new ImageTexture("Textures\\05.JPG");
{
//check for errors during all previous calls
var error = GL.GetError();
if (error != ErrorCode.NoError)
{
throw new Exception(error.ToString());
}
}
};
w.UpdateFrame += (o, fea) =>
{
//perform logic
//time += fea.Time;
alpha += 0.01f;
beta += 0.02f;
gamma += 0.03f;
};
w.RenderFrame += (o, fea) =>
{
//clear screen and z-buffer
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
//switch to our shader
_program.Use();
GL.Uniform4(GL.GetUniformLocation(_program, "enviroment"), new Vector4(0.1f, 0.1f, 0.1f, 1));
GL.Uniform1(GL.GetUniformLocation(_program, "texture1"), _imageTexture);
GL.UniformMatrix4(GL.GetUniformLocation(_program, "p"), false, ref projection);
var rotaM = Matrix4x4.CreateFromYawPitchRoll(alpha, alpha, alpha).ToGlMatrix();
var translationM = Matrix4.CreateTranslation(0f, 0f, -10f);
var m = rotaM * translationM;
_cube.ViewModel = m;
_cube.Render(PrimitiveType.Triangles);
rotaM = Matrix4x4.CreateFromYawPitchRoll(beta, gamma, beta).ToGlMatrix();
m = rotaM * Matrix4.CreateTranslation(3f, 3f, -10f);
_cube.ViewModel = m;
_cube.Render(PrimitiveType.Triangles);
rotaM = Matrix4x4.CreateFromYawPitchRoll(gamma, alpha, gamma).ToGlMatrix();
m = rotaM * Matrix4.CreateTranslation(-3f, -3f, -10f);
_cube.ViewModel = m;
_cube.Render(PrimitiveType.Triangles);
//display
w.SwapBuffers();
var error = GL.GetError();
if (error != ErrorCode.NoError)
{
throw new Exception(error.ToString());
}
};
w.Resize += (o, ea) =>
{
var r = w.Width / (float)w.Height;
projection = Matrix4.CreatePerspectiveFieldOfView((float)Math.PI / 4, r, 0.1f, 100);
GL.Viewport(w.ClientRectangle);
};
w.Run();
}
}