/// <summary>
/// Initialises the scene.
/// </summary>
/// <param name="gl">The OpenGL instance.</param>
/// <param name="width">The width of the screen.</param>
/// <param name="height">The height of the screen.</param>
public void Initialise(OpenGL gl, float width, float height)
{
// Set a blue clear colour.
gl.ClearColor(0.4f, 0.6f, 0.9f, 0.0f);
// Create the shader program.
var vertexShaderSource = ManifestResourceLoader.LoadTextFile("Shader.vert");
var fragmentShaderSource = ManifestResourceLoader.LoadTextFile("Shader.frag");
shaderProgram = new ShaderProgram();
shaderProgram.Create(gl, vertexShaderSource, fragmentShaderSource, null);
shaderProgram.BindAttributeLocation(gl, attributeIndexPosition, "in_Position");
shaderProgram.BindAttributeLocation(gl, attributeIndexColour, "in_Color");
shaderProgram.AssertValid(gl);
// Create a perspective projection matrix.
const float rads = (60.0f / 360.0f) * (float)Math.PI * 2.0f;
projectionMatrix = glm.perspective(rads, width / height, 0.1f, 100.0f);
// Create a view matrix to move us back a bit.
viewMatrix = glm.translate(new mat4(1.0f), new vec3(0.0f, 0.0f, -5.0f));
// Create a model matrix to make the model a little bigger.
modelMatrix = glm.scale(new mat4(1.0f), new vec3(2.5f));
// Now create the geometry for the square.
CreateVerticesForSquare(gl);
}
private void openGLControl1_OpenGLInitialized(object sender, EventArgs e)
{
OpenGL gl = this.openGLControl1.OpenGL; //Сохраним контекст для отрисовки
Camera.Init(); //Проинициализируем камеру стандартными настройками
Sun.Init(); //Проинициализируем Солнце стандартными настройками
hMap = new HeightMap("Map.png"); //Получим карту высот из файла, сожержащего шум Перлина
/*
* Настроим свет
* */
gl.Light(OpenGL.GL_LIGHT0, OpenGL.GL_AMBIENT, Sun.Ambient);
gl.Light(OpenGL.GL_LIGHT0, OpenGL.GL_DIFFUSE, Sun.Diffuse);
gl.Light(OpenGL.GL_LIGHT0, OpenGL.GL_SPECULAR, Sun.Specular);
gl.LightModel(OpenGL.GL_LIGHT_MODEL_TWO_SIDE, OpenGL.GL_TRUE);
gl.Enable(OpenGL.GL_LIGHTING);
gl.Enable(OpenGL.GL_LIGHT0);
gl.ShadeModel(OpenGL.GL_SMOOTH);
gl.ClearColor(
1.0f * Color.SkyBlue.R / 255,
1.0f * Color.SkyBlue.G / 255,
1.0f * Color.SkyBlue.B / 255,
0
);
gl.Enable(OpenGL.GL_DEPTH_TEST);
/*
* Включим обработку текстур
* */
gl.Enable(OpenGL.GL_TEXTURE_2D);
texture.Create(gl, new Bitmap("Rock.jpg")); //зададим текстуру (по стандарту - камень)
gl.MatrixMode(OpenGL.GL_PROJECTION); //установим матрицу проекции
// Единичная матрица для последующих преобразований
gl.LoadIdentity();
// Преобразование
gl.Perspective(
60.0f,
(double)Width / (double)Height,
0.01,
Math.Max(hMap.Map.GetLength(0), hMap.Map.GetLength(1)) * STEP);
// Зададим модель отображения
gl.MatrixMode(OpenGL.GL_MODELVIEW);
texture.Bind(gl);
}
public void Initialise(OpenGL gl)
{
// Create the per pixel shader.
shaderPerPixel = new ShaderProgram();
shaderPerPixel.Create(gl,
ManifestResourceLoader.LoadTextFile(@"Shaders\PerPixel.vert"),
ManifestResourceLoader.LoadTextFile(@"Shaders\PerPixel.frag"), null);
shaderPerPixel.BindAttributeLocation(gl, VertexAttributes.Position, "Position");
shaderPerPixel.BindAttributeLocation(gl, VertexAttributes.Normal, "Normal");
gl.ClearColor(0f,0f, 0f, 1f);
// Immediate mode only features!
gl.Enable(OpenGL.GL_TEXTURE_2D);
}
public void ResetOpenGL()
{
SharpGL.OpenGL gl = this.openGLControl1.OpenGL;
gl.Viewport(0, 0, openGLControl1.Width, openGLControl1.Height);
gl.ClearColor(0.0f, 0.0f, 0.0f, 0.0f);
gl.MatrixMode(MatrixMode.Projection);
gl.LoadIdentity();
gl.Ortho(0, openGLControl1.Width, openGLControl1.Height, 0, -10, 10);
gl.MatrixMode(MatrixMode.Modelview);
}
private void openGLControl1_OpenGLDraw(object sender, PaintEventArgs e)
{
SharpGL.OpenGL gl = this.openGLControl1.OpenGL;
gl.Viewport(0, 0, openGLControl1.Width, openGLControl1.Height);
gl.ClearColor(0.0f, 0.0f, 0.0f, 0.0f);
gl.MatrixMode(MatrixMode.Projection);
gl.LoadIdentity();
gl.Ortho(0, openGLControl1.Width, openGLControl1.Height, 0, -10, 10);
gl.MatrixMode(MatrixMode.Modelview);
DrawGrid();
}
private void DrawSound()
{
gl.Clear(OpenGL.GL_COLOR_BUFFER_BIT | OpenGL.GL_DEPTH_BUFFER_BIT);
float[] spectrum = new float[256];
float[] wavedata = new float[512];
Player.getWaveData(ref wavedata, 256, 0);
Player.getSpectrum(ref spectrum, 256, 0);
DateTime currentDate = DateTime.Now;
float time = (float)currentDate.Ticks / (float)TimeSpan.TicksPerSecond;
gl.Uniform1(timeLoc, time);
gl.Uniform1(sampleLoc, 256, spectrum);
gl.Uniform1(waveLoc, 256, wavedata);
gl.ClearColor(0.0f, 0.0f, 0.0f, 1.0f);
gl.Clear(OpenGL.GL_COLOR_BUFFER_BIT);
gl.DrawArrays(OpenGL.GL_TRIANGLES, 0, 6);
}
public void Initialize(OpenGL gl)
{
this.gl = gl;
gl.Enable(OpenGL.GL_DEPTH_TEST);
gl.DepthFunc(DepthFunction.LessThanOrEqual);
gl.ClearDepth(1.0);
gl.ClearColor(0.0f, 0.0f, 0.0f, 0.0f);
gl.Hint(HintTarget.PerspectiveCorrection, HintMode.Nicest);
gl.Hint(HintTarget.LineSmooth, HintMode.Nicest);
gl.Hint(HintTarget.PointSmooth, HintMode.Nicest);
gl.Hint(HintTarget.PolygonSmooth, HintMode.Nicest);
gl.Enable(OpenGL.GL_SMOOTH);
gl.Enable(OpenGL.GL_LINE_SMOOTH);
gl.Enable(OpenGL.GL_POINT_SMOOTH);
gl.Enable(OpenGL.GL_MULTISAMPLE);
gl.MinSampleShading(4.0f);
}
private void openGLControl1_OpenGLInitialized(object sender, EventArgs e)
{
SharpGL.OpenGL gl = this.openGLControl1.OpenGL;
gl.ClearColor(0.0f, 0.0f, 0.0f, 1.0f);
gl.ClearDepth(1.0f);
// Setup lightning
gl.Enable(OpenGL.GL_LIGHTING);
gl.Enable(OpenGL.GL_LIGHT0);
gl.Enable(OpenGL.GL_LIGHT1);
gl.Enable(OpenGL.GL_COLOR_MATERIAL);
gl.Light(OpenGL.GL_LIGHT0, OpenGL.GL_AMBIENT, new float[] { 0.8f, 0.8f, 0.8f });
gl.Light(OpenGL.GL_LIGHT0, OpenGL.GL_DIFFUSE, new float[] { 1f, 1f, 1f });
gl.Light(OpenGL.GL_LIGHT0, OpenGL.GL_POSITION, lightPos0);
gl.Light(OpenGL.GL_LIGHT0, OpenGL.GL_SPOT_CUTOFF, 45);
gl.Light(OpenGL.GL_LIGHT0, OpenGL.GL_SPOT_EXPONENT, 15);
gl.Light(OpenGL.GL_LIGHT0, OpenGL.GL_SPOT_DIRECTION, new float[] { 1f, 1f, 1f });
gl.Material(OpenGL.GL_FRONT_AND_BACK, OpenGL.GL_DIFFUSE, new float[] { 1, 1, 1, 1 });
gl.Material(OpenGL.GL_FRONT_AND_BACK, OpenGL.GL_AMBIENT, new float[] { 1, 1, 1, 1 });
textureImage = new Bitmap("texture.bmp");
gl.Enable(OpenGL.GL_TEXTURE_2D);
// Get one texture id, and stick it into the textures array.
gl.GenTextures(1, textures);
gl.BindTexture(OpenGL.GL_TEXTURE_2D, textures[0]);
// Set texture data.
gl.TexImage2D(OpenGL.GL_TEXTURE_2D, 0, 3, textureImage.Width, textureImage.Height, 0, OpenGL.GL_BGR, OpenGL.GL_UNSIGNED_BYTE,
textureImage.LockBits(new Rectangle(0, 0, textureImage.Width, textureImage.Height),
ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb).Scan0);
// Specify linear filtering.
gl.TexParameter(OpenGL.GL_TEXTURE_2D, OpenGL.GL_TEXTURE_MIN_FILTER, OpenGL.GL_LINEAR);
gl.TexParameter(OpenGL.GL_TEXTURE_2D, OpenGL.GL_TEXTURE_MAG_FILTER, OpenGL.GL_LINEAR);
}
public void SetClearColor(OpenGL _context, Color _color)
{
_context.ClearColor(_color.R, _color.G, _color.B, _color.A);
}
public override void OnRender(OpenGL gl)
{
gl.Clear(OpenGL.GL_COLOR_BUFFER_BIT | OpenGL.GL_DEPTH_BUFFER_BIT);
gl.ClearColor(0.137f, 0.121f, 0.125f, 0f);
_graph.Render();
}
/// <summary>
/// Create device and renderbuffer, initialize NV_DX_interop and start rendering.
/// </summary>
private void StartRendering()
{
_gl = new OpenGL();
_hwnd = new HwndSource(0, 0, 0, 0, 0, "test", IntPtr.Zero).Handle;
_gl.Create(SharpGL.Version.OpenGLVersion.OpenGL2_1, RenderContextType.HiddenWindow, 1, 1, 32, _hwnd);
// Set the most basic OpenGL styles.
_gl.ShadeModel(OpenGL.GL_SMOOTH);
_gl.ClearColor(0.0f, 0.0f, 0.0f, 1.0f);
_gl.ClearDepth(1.0f);
_gl.Enable(OpenGL.GL_BLEND);
_gl.Disable(OpenGL.GL_DEPTH_TEST);
_gl.Enable(OpenGL.GL_TEXTURE_2D);
_gl.TexEnv(OpenGL.GL_TEXTURE_ENV, OpenGL.GL_TEXTURE_ENV_MODE, OpenGL.GL_REPLACE);
_gl.BlendFunc(OpenGL.GL_SRC_ALPHA, OpenGL.GL_ONE_MINUS_SRC_ALPHA);
//_gl.Enable(OpenGL.GL_MULTISAMPLE);
//_gl.Enable(OpenGL.GL_MULTISAMPLE_ARB);
_gl.Hint(0x8534, OpenGL.GL_FASTEST);
ResizeRendering();
// leverage the Rendering event of WPF's composition target to
// update the custom D3D scene
CompositionTarget.Rendering += OnRenderOpenGL;
if (GLInitialize != null)
GLInitialize(this, new EventArgs());
}
public override void OnRender(OpenGL gl)
{
gl.Clear(OpenGL.GL_COLOR_BUFFER_BIT | OpenGL.GL_DEPTH_BUFFER_BIT);
gl.ClearColor(0.137f, 0.121f, 0.125f, 0f);
_graph.Render();
gl.Disable(OpenGL.GL_DEPTH_TEST);
using (new Bind(_shader))
{
gl.UniformMatrix4(_modelUniform, 1, false, Mat4.Identity.ToColumnMajorArray());
gl.PointSize(10f);
gl.Begin(BeginMode.Points);
gl.Vertex(6, 0);
gl.End();
}
gl.PointSize(5f);
_points.Render();
gl.Enable(OpenGL.GL_DEPTH_TEST);
}
