本文整理匯總了C#中SharpGL.OpenGL.GetInteger方法的典型用法代碼示例。如果您正苦於以下問題：C# OpenGL.GetInteger方法的具體用法？C# OpenGL.GetInteger怎麽用？C# OpenGL.GetInteger使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類SharpGL.OpenGL的用法示例。
在下文中一共展示了OpenGL.GetInteger方法的6個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的C#代碼示例。
示例1: Render
public override void Render(OpenGL gl, RenderMode renderMode)
{
// Do the ordinary polygon drawing.
base.Render(gl, renderMode);
// Now we do our own.
PushGeometricTransformation(gl);
// Get the viewport.
int[] viewport = new int[4];
gl.GetInteger(OpenGL.GL_VIEWPORT, viewport);
int index = 0;
// Here we're going to go through every vertex..
foreach(Vertex vertex in Vertices)
{
// Convert the vertex into a coord.
Vertex screen = gl.Project(vertex);
// Get the OpenGL coord as a GDI coord.
float x = screen.X;
float y = viewport[3] - screen.Y;
/*todoif(gl.GDIGraphics != null)
{
// Label the vertex.
gl.GDIGraphics.DrawString(index.ToString(), new System.Drawing.Font(FontFamily.GenericSansSerif, 10, FontStyle.Bold),
Brushes.Red, new PointF(x, y));
}*/
index++;
}
PopGeometricTransformation(gl);
}示例2: DrawText
/// <summary>
/// Draws the text.
/// </summary>
/// <param name="gl">The gl.</param>
/// <param name="x">The x.</param>
/// <param name="y">The y.</param>
/// <param name="r">The r.</param>
/// <param name="g">The g.</param>
/// <param name="b">The b.</param>
/// <param name="faceName">Name of the face.</param>
/// <param name="fontSize">Size of the font.</param>
/// <param name="text">The text.</param>
public void DrawText(OpenGL gl, int x, int y, float r, float g, float b, string faceName, float fontSize, string text)
{
// Get the font size in pixels.
var fontHeight = (int)(fontSize * (16.0f / 12.0f));
// Do we have a font bitmap entry for this OpenGL instance and face name?
var result = (from fbe in fontBitmapEntries
where fbe.HDC == gl.RenderContextProvider.DeviceContextHandle
&& fbe.HRC == gl.RenderContextProvider.RenderContextHandle
&& String.Compare(fbe.FaceName, faceName, StringComparison.OrdinalIgnoreCase) == 0
&& fbe.Height == fontHeight
select fbe).ToList();
// Get the FBE or null.
var fontBitmapEntry = result.FirstOrDefault();
// If we don't have the FBE, we must create it.
if (fontBitmapEntry == null)
fontBitmapEntry = CreateFontBitmapEntry(gl, faceName, fontHeight);
double width = gl.RenderContextProvider.Width;
double height = gl.RenderContextProvider.Height;
// Create the appropriate projection matrix.
gl.MatrixMode(OpenGL.GL_PROJECTION);
gl.PushMatrix();
gl.LoadIdentity();
int[] viewport = new int[4];
gl.GetInteger(OpenGL.GL_VIEWPORT, viewport);
gl.Ortho(0, width, 0, height, -1, 1);
// Create the appropriate modelview matrix.
gl.MatrixMode(OpenGL.GL_MODELVIEW);
gl.PushMatrix();
gl.LoadIdentity();
gl.Color(r, g, b);
gl.RasterPos(x, y);
gl.PushAttrib(OpenGL.GL_LIST_BIT | OpenGL.GL_CURRENT_BIT |
OpenGL.GL_ENABLE_BIT | OpenGL.GL_TRANSFORM_BIT);
gl.Color(r, g, b);
gl.Disable(OpenGL.GL_LIGHTING);
gl.Disable(OpenGL.GL_TEXTURE_2D);
gl.Disable(OpenGL.GL_DEPTH_TEST);
gl.RasterPos(x, y);
// Set the list base.
gl.ListBase(fontBitmapEntry.ListBase);
// Create an array of lists for the glyphs.
var lists = text.Select(c => (byte) c).ToArray();
// Call the lists for the string.
gl.CallLists(lists.Length, lists);
gl.Flush();
// Reset the list bit.
gl.PopAttrib();
// Pop the modelview.
gl.PopMatrix();
// back to the projection and pop it, then back to the model view.
gl.MatrixMode(OpenGL.GL_PROJECTION);
gl.PopMatrix();
gl.MatrixMode(OpenGL.GL_MODELVIEW);
}示例3: IntialiseFromSerial
/// <summary>
/// Call this function to iniatilise a scene loaded from a file.
/// </summary>
/// <param name="ctrl">The OpenGLCtrl.</param>
/// <param name="sceneType">The scene type.</param>
public virtual void IntialiseFromSerial(int width, int height, SceneType sceneType)
{
// Create OpenGL.
gl = new OpenGL();
gl.Create(width, height);
// Find out how many lights OpenGL can support.
int [] umaxlights = new int[1];
gl.GetInteger(OpenGL.MAX_LIGHTS, umaxlights);
// Re-create as many openGL lights as we can.
for(uint u = 0; u < umaxlights[0]; u++)
{
if(u < Lights.Count)
{
Light light = lights[(int)u];
light.GLCode = OpenGL.LIGHT0 + u;
}
}
// Re-create all the quadrics
foreach(Quadric quadric in quadrics)
quadric.Create(gl);
// Set the scene type.
SetSceneType(sceneType);
// Initialise stock drawing.
gl.InitialiseStockDrawing();
// Set the Scene OpenGL for the quadrics.
Quadric.SceneOpenGL = OpenGL;
}示例4: Create
/// <summary>
/// This function creates the texture from an image file.
/// </summary>
/// <param name="gl">The OpenGL object.</param>
/// <param name="path">The path to the image file.</param>
/// <returns>True if the texture was successfully loaded.</returns>
public virtual bool Create(OpenGL gl, string path)
{
// Create the underlying OpenGL object.
Create(gl);
// Try and load the bitmap. Return false on failure.
Bitmap image = new Bitmap(path);
if (image == null)
return false;
// Get the maximum texture size supported by OpenGL.
int[] textureMaxSize = { 0 };
gl.GetInteger(OpenGL.GL_MAX_TEXTURE_SIZE, textureMaxSize);
// Find the target width and height sizes, which is just the highest
// posible power of two that'll fit into the image.
int targetWidth = textureMaxSize[0];
int targetHeight = textureMaxSize[0];
for (int size = 1; size <= textureMaxSize[0]; size *= 2)
{
if (image.Width < size)
{
targetWidth = size / 2;
break;
}
if (image.Width == size)
targetWidth = size;
}
for (int size = 1; size <= textureMaxSize[0]; size *= 2)
{
if (image.Height < size)
{
targetHeight = size / 2;
break;
}
if (image.Height == size)
targetHeight = size;
}
// If need to scale, do so now.
if (image.Width != targetWidth || image.Height != targetHeight)
{
// Resize the image.
Image newImage = image.GetThumbnailImage(targetWidth, targetHeight, null, IntPtr.Zero);
// Destory the old image, and reset.
image.Dispose();
image = (Bitmap)newImage;
}
// Create an array of pixels the correct size.
pixelData = new byte[image.Width * image.Height * 4];
int index = 0;
// TODO: The loop below is staggeringly slow and needs speeding up.
// Go through the pixels backwards, this seems to be how OpenGL wants the data.
for (int y = image.Height - 1; y >= 0; y--)
{
for (int x = 0; x < image.Width; x++)
{
Color pixel = image.GetPixel(x, y);
pixelData[index++] = pixel.R;
pixelData[index++] = pixel.G;
pixelData[index++] = pixel.B;
pixelData[index++] = pixel.A;
}
}
// Set the width and height.
width = image.Width;
height = image.Height;
// Dispose of the image file.
image.Dispose();
// Bind our texture object (make it the current texture).
gl.BindTexture(OpenGL.GL_TEXTURE_2D, TextureName);
// Set the image data.
gl.TexImage2D(OpenGL.GL_TEXTURE_2D, 0, (int)OpenGL.GL_RGBA,
width, height, 0, OpenGL.GL_RGBA, OpenGL.GL_UNSIGNED_BYTE,
pixelData);
// Set linear filtering mode.
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);
// We're done!
return true;
}示例5: BeforeRendering
protected void BeforeRendering(OpenGL gl, RenderMode renderMode)
{
IScientificCamera camera = this.camera;
if (camera != null)
{
if (camera.CameraType == CameraTypes.Perspecitive)
{
IPerspectiveViewCamera perspective = camera;
this.projectionMatrix = perspective.GetProjectionMat4();
this.viewMatrix = perspective.GetViewMat4();
}
else if (camera.CameraType == CameraTypes.Ortho)
{
IOrthoViewCamera ortho = camera;
this.projectionMatrix = ortho.GetProjectionMat4();
this.viewMatrix = ortho.GetViewMat4();
}
else
{ throw new NotImplementedException(); }
}
modelMatrix = glm.scale(mat4.identity(), new vec3(1, 1, this.ZAxisScale));
gl.Enable(OpenGL.GL_VERTEX_PROGRAM_POINT_SIZE);
gl.Enable(OpenGL.GL_POINT_SPRITE_ARB);
gl.TexEnv(OpenGL.GL_POINT_SPRITE_ARB, OpenGL.GL_COORD_REPLACE_ARB, OpenGL.GL_TRUE);
gl.Enable(OpenGL.GL_POINT_SMOOTH);
gl.Hint(OpenGL.GL_POINT_SMOOTH_HINT, OpenGL.GL_NICEST);
gl.Enable(OpenGL.GL_BLEND);
gl.BlendEquation(OpenGL.GL_FUNC_ADD_EXT);
gl.BlendFuncSeparate(OpenGL.GL_SRC_ALPHA, OpenGL.GL_ONE_MINUS_SRC_ALPHA, OpenGL.GL_ONE, OpenGL.GL_ONE);
ShaderProgram shaderProgram = this.shaderProgram;
int[] viewport = new int[4];
gl.GetInteger(OpenGL.GL_VIEWPORT, viewport);
shaderProgram.Bind(gl);
shaderProgram.SetUniformMatrix4(gl, "projectionMatrix", projectionMatrix.to_array());
shaderProgram.SetUniformMatrix4(gl, "viewMatrix", viewMatrix.to_array());
shaderProgram.SetUniformMatrix4(gl, "modelMatrix", modelMatrix.to_array());
shaderProgram.SetUniform1(gl, "canvasWidth", viewport[2] + 0.0f);
shaderProgram.SetUniform1(gl, "canvasHeight", viewport[3] + 0.0f);
shaderProgram.SetUniform1(gl, "opacity", this.Opacity);
this.texture.Bind(gl);
shaderProgram.SetUniform1(gl, "tex", this.texture.TextureName);
shaderProgram.SetUniform1(gl, "brightness", this.Brightness);
}示例6: DrawText
/// <summary>
/// Draws the text.
/// </summary>
/// <param name="gl">The gl.</param>
/// <param name="x">The x.</param>
/// <param name="y">The y.</param>
/// <param name="r">The r.</param>
/// <param name="g">The g.</param>
/// <param name="b">The b.</param>
/// <param name="faceName">Name of the face.</param>
/// <param name="fontSize">Size of the font.</param>
/// <param name="text">The text.</param>
public void DrawText(OpenGL gl, int x, int y, float r, float g, float b, string faceName, float fontSize, string text)
{
// Get the font size in pixels.
int fontHeight = (int)(fontSize * (16.0f / 12.0f));
// Do we have a font bitmap entry for this OpenGL instance and face name?
var result = from fbe in fontBitmapEntries
where fbe.HDC == gl.RenderContextProvider.DeviceContextHandle
&& fbe.HRC == gl.RenderContextProvider.RenderContextHandle
&& string.Compare(fbe.FaceName, faceName, true) == 0
&& fbe.Height == fontHeight
select fbe;
// Get the FBE or null.
FontBitmapEntry fontBitmapEntry = result == null || result.Count() == 0 ? null : result.First();
// If we don't have the FBE, we must create it.
if (fontBitmapEntry == null)
fontBitmapEntry = CreateFontBitmapEntry(gl, faceName, fontHeight);
double width = gl.RenderContextProvider.Width;
double height = gl.RenderContextProvider.Height;
double aspect_ratio = width / height;
// Create the appropriate projection matrix.
gl.MatrixMode(OpenGL.GL_PROJECTION);
gl.PushMatrix();
gl.LoadIdentity();
int[] viewport = new int[4];
gl.GetInteger(OpenGL.GL_VIEWPORT, viewport);
//gl.Ortho2D(viewport[0], viewport[2], viewport[1], viewport[3]);
gl.Ortho(0, width, 0, height, -1, 1);
// Create the appropriate modelview matrix.
gl.MatrixMode(OpenGL.GL_MODELVIEW);
gl.PushMatrix();
gl.LoadIdentity();
//gl.Translate(0, 0, -5);
//gl.RasterPos(x, y);
gl.Color(r, g, b);
gl.RasterPos(x, y);
gl.PushAttrib(OpenGL.GL_LIST_BIT | OpenGL.GL_CURRENT_BIT |
OpenGL.GL_ENABLE_BIT | OpenGL.GL_TRANSFORM_BIT);
gl.Color(r, g, b);
gl.Disable(OpenGL.GL_LIGHTING);
gl.Disable(OpenGL.GL_TEXTURE_2D);
gl.Disable(OpenGL.GL_DEPTH_TEST);
gl.RasterPos(x, y);
/** gl.Enable(OpenGL.GL_BLEND);
gl.BlendFunc(OpenGL.GL_SRC_ALPHA, OpenGL.GL_ONE_MINUS_SRC_ALPHA); */
// Set the list base.
gl.ListBase(fontBitmapEntry.ListBase);
// Create an array of lists for the glyphs.
List<byte> lists = new List<byte>();
foreach(char c in text)
lists.Add((byte)c);
// Call the lists for the string.
gl.CallLists(lists.Count, lists.ToArray());
gl.Flush();
// Reset the list bit.
gl.PopAttrib();
// Pop the modelview.
gl.PopMatrix();
// back to the projection and pop it, then back to the model view.
gl.MatrixMode(OpenGL.GL_PROJECTION);
gl.PopMatrix();
gl.MatrixMode(OpenGL.GL_MODELVIEW);
}