/// <summary>
///
/// </summary>
protected override void DoInitialize()
{
base.DoInitialize();
this.RenderUnit.Initialize();
{
var bitmap = this.bitmap;
bitmap.RotateFlip(System.Drawing.RotateFlipType.Rotate180FlipX);
var texture = new Texture(TextureTarget.Texture2D,
new TexImage2D(TexImage2D.Target.Texture2D, 0, (int)GL.GL_RGBA, bitmap.Width, bitmap.Height, 0, GL.GL_BGRA, GL.GL_UNSIGNED_BYTE, new ImageDataProvider(bitmap)));
texture.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureWrapS, (int)GL.GL_CLAMP_TO_EDGE));
texture.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureWrapT, (int)GL.GL_CLAMP_TO_EDGE));
texture.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureWrapR, (int)GL.GL_CLAMP_TO_EDGE));
texture.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureMinFilter, (int)GL.GL_LINEAR));
texture.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureMagFilter, (int)GL.GL_LINEAR));
texture.Initialize();
if (this.autoDispose)
{
bitmap.Dispose();
}
this.bitmap = null;
RenderMethod method = this.RenderUnit.Methods[0];
method.Program.SetUniform("tex", texture);
}
}
private Framebuffer CreateFramebuffer(int width, int height)
{
//Renderbuffer colorBuffer = Renderbuffer.CreateColorbuffer(width, height, GL.GL_RGBA);
//Renderbuffer depthBuffer = Renderbuffer.CreateDepthbuffer(width, height, DepthComponentType.DepthComponent24);
var framebuffer = new Framebuffer(width, height);
framebuffer.Bind();
//framebuffer.Attach(colorBuffer);//0
//this.BindingTexture = framebuffer.Attach(TextureAttachment.DepthAttachment);//1
var texture = new Texture(new TexImage2D(TexImage2D.Target.Texture2D, GL.GL_DEPTH_COMPONENT32, width, height, GL.GL_DEPTH_COMPONENT, GL.GL_FLOAT),
// 设置默认滤波模式
new TexParameteri(TexParameter.PropertyName.TextureMinFilter, (int)GL.GL_LINEAR),
new TexParameteri(TexParameter.PropertyName.TextureMagFilter, (int)GL.GL_LINEAR),
// 设置深度比较模式
new TexParameteri(TexParameter.PropertyName.TextureCompareMode, (int)GL.GL_COMPARE_REF_TO_TEXTURE),
new TexParameteri(TexParameter.PropertyName.TextureCompareFunc, (int)GL.GL_LEQUAL),
// 设置边界截取模式
new TexParameteri(TexParameter.PropertyName.TextureWrapS, (int)GL.GL_CLAMP_TO_EDGE),
new TexParameteri(TexParameter.PropertyName.TextureWrapT, (int)GL.GL_CLAMP_TO_EDGE));
texture.Initialize();
framebuffer.Attach(FramebufferTarget.Framebuffer, texture, AttachmentLocation.Depth);
this.BindingTexture = texture;
//framebuffer.Attach(depthBuffer);// special
//framebuffer.SetDrawBuffers(GL.GL_COLOR_ATTACHMENT0 + 1);// as in 1 in framebuffer.Attach(texture);//1
//framebuffer.SetDrawBuffers(GL.GL_NONE);
framebuffer.SetDrawBuffer(GL.GL_NONE);
//framebuffer.SetReadBuffer(GL.GL_NONE);
this.BindingTexture.Bind();
framebuffer.CheckCompleteness();
this.BindingTexture.Unbind();
framebuffer.Unbind();
return(framebuffer);
}
private Framebuffer CreateFramebuffer(int width, int height)
{
var framebuffer = new Framebuffer(width, height);
framebuffer.Bind();
{
var texture = new Texture(new TexImageBitmap(width, height),
new TexParameteri(TexParameter.PropertyName.TextureWrapS, (int)GL.GL_REPEAT),
new TexParameteri(TexParameter.PropertyName.TextureWrapT, (int)GL.GL_REPEAT),
new TexParameteri(TexParameter.PropertyName.TextureWrapR, (int)GL.GL_REPEAT),
new TexParameteri(TexParameter.PropertyName.TextureMinFilter, (int)GL.GL_LINEAR),
new TexParameteri(TexParameter.PropertyName.TextureMagFilter, (int)GL.GL_LINEAR));
texture.Initialize();
framebuffer.Attach(FramebufferTarget.Framebuffer, texture, 0u);// 1
this.BindingTexture = texture;
}
{
var renderbuffer = new Renderbuffer(width, height, GL.GL_DEPTH_COMPONENT24);
framebuffer.Attach(FramebufferTarget.Framebuffer, renderbuffer, AttachmentLocation.Depth);// special
}
//framebuffer.SetDrawBuffer(GL.GL_COLOR_ATTACHMENT0 + 1);// as in 1 in framebuffer.Attach(FramebufferTarget.Framebuffer, texture, 1u);// 1
framebuffer.CheckCompleteness();
framebuffer.Unbind();
return(framebuffer);
}
/// <summary>
///
/// </summary>
protected override void DoInitialize()
{
this.RenderUnit.Initialize();
{
var bitmap = this.bitmap;
bitmap.RotateFlip(System.Drawing.RotateFlipType.Rotate180FlipX);
var texImageBitmap = new TexImageBitmap(bitmap);
var texture = new Texture(texImageBitmap);
texture.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureWrapS, (int)GL.GL_CLAMP_TO_EDGE));
texture.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureWrapT, (int)GL.GL_CLAMP_TO_EDGE));
texture.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureWrapR, (int)GL.GL_CLAMP_TO_EDGE));
texture.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureMinFilter, (int)GL.GL_LINEAR));
texture.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureMagFilter, (int)GL.GL_LINEAR));
texture.Initialize();
if (this.autoDispose)
{
bitmap.Dispose();
}
this.bitmap = null;
RenderMethod method = this.RenderUnit.Methods[0];
method.Program.SetUniform("tex", texture);
}
}
/// <summary>
/// load a volume from the given raw data file and generates an OpenGL 3D texture from it
/// </summary>
/// <returns></returns>
public static Texture Load()
{
var bytes = new byte[XDIM * YDIM * ZDIM];
// read the volume data file
using (var file = new System.IO.FileStream(volume_file, System.IO.FileMode.Open))
{
file.Read(bytes, 0, bytes.Length);
}
// generate OpenGL texture
var dataProvider = new ArrayDataProvider <byte>(bytes);
var storage = new TexImage3D(TexImage3D.Target.Texture3D, GL.GL_RED, 1, 0, XDIM, YDIM, ZDIM, GL.GL_RED, GL.GL_UNSIGNED_BYTE, dataProvider);
var texture = new Texture(
TextureTarget.Texture3D, storage, new MipmapBuilder(),
new TexParameteri(TexParameter.PropertyName.TextureWrapR, (int)GL.GL_CLAMP),
new TexParameteri(TexParameter.PropertyName.TextureWrapS, (int)GL.GL_CLAMP),
new TexParameteri(TexParameter.PropertyName.TextureWrapT, (int)GL.GL_CLAMP),
new TexParameteri(TexParameter.PropertyName.TextureMinFilter, (int)GL.GL_LINEAR_MIPMAP_LINEAR),
new TexParameteri(TexParameter.PropertyName.TextureMagFilter, (int)GL.GL_LINEAR),
new TexParameteri(TexParameter.PropertyName.TextrueBaseLevel, 0),
new TexParameteri(TexParameter.PropertyName.TextureMaxLevel, 4));
texture.Initialize();
return(texture);
}
/// <summary>
/// load a volume from the given raw data file and generates an OpenGL 3D texture from it
/// </summary>
/// <returns></returns>
public static Texture Load(Bitmap image)
{
var bytes = new byte[length * length * length];
if (image.Width != length || image.Height != length)
{
image = (Bitmap)image.GetThumbnailImage(length, length, null, IntPtr.Zero);
}
image.RotateFlip(RotateFlipType.Rotate180FlipX);
FillByteArray(bytes, image);
// generate OpenGL texture
var dataProvider = new ArrayDataProvider <byte>(bytes);
var storage = new TexImage3D(TexImage3D.Target.Texture3D, GL.GL_RED, length, length, length, GL.GL_RED, GL.GL_UNSIGNED_BYTE, dataProvider);
var texture = new Texture(storage, new MipmapBuilder(),
new TexParameteri(TexParameter.PropertyName.TextureWrapR, (int)GL.GL_CLAMP),
new TexParameteri(TexParameter.PropertyName.TextureWrapS, (int)GL.GL_CLAMP),
new TexParameteri(TexParameter.PropertyName.TextureWrapT, (int)GL.GL_CLAMP),
new TexParameteri(TexParameter.PropertyName.TextureMinFilter, (int)GL.GL_LINEAR_MIPMAP_LINEAR),
new TexParameteri(TexParameter.PropertyName.TextureMagFilter, (int)GL.GL_LINEAR),
new TexParameteri(TexParameter.PropertyName.TextrueBaseLevel, 0),
new TexParameteri(TexParameter.PropertyName.TextureMaxLevel, 4));
texture.Initialize();
return(texture);
}
private Framebuffer CreateFramebuffer(int width, int height)
{
var texture = new Texture(TextureTarget.Texture2D,
new NullImageFiller(width, height, GL.GL_RGBA, GL.GL_RGBA, GL.GL_UNSIGNED_BYTE),
new SamplerParameters(
TextureWrapping.Repeat,
TextureWrapping.Repeat,
TextureWrapping.Repeat,
TextureFilter.Linear,
TextureFilter.Linear));
texture.Initialize();
this.BindingTexture = texture;
Renderbuffer colorBuffer = Renderbuffer.CreateColorbuffer(width, height, GL.GL_RGBA);
Renderbuffer depthBuffer = Renderbuffer.CreateDepthbuffer(width, height, DepthComponentType.DepthComponent24);
var framebuffer = new Framebuffer();
framebuffer.Bind();
framebuffer.Attach(colorBuffer); //0
framebuffer.Attach(texture); //1
framebuffer.Attach(depthBuffer); // special
framebuffer.SetDrawBuffers(GL.GL_COLOR_ATTACHMENT0 + 1); // as in 1 in framebuffer.Attach(texture);//1
framebuffer.CheckCompleteness();
framebuffer.Unbind();
return(framebuffer);
}
/// <summary>
/// Attach a texture.
/// <para>Bind() this framebuffer before invoking this method.</para>
/// </summary>
/// <param name="type"></param>
/// <returns></returns>
public Texture Attach(TextureAttachment type)
{
const int level = 0;
Texture result = null;
switch (type)
{
case TextureAttachment.ColorAttachment:
result = new Texture(TextureTarget.Texture2D,
new TexImage2D(TexImage2D.Target.Texture2D, 0, (int)GL.GL_RGBA, this.Width, this.Height, 0, GL.GL_BGRA, GL.GL_UNSIGNED_BYTE));
result.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureWrapS, (int)GL.GL_REPEAT));
result.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureWrapT, (int)GL.GL_REPEAT));
result.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureWrapR, (int)GL.GL_REPEAT));
result.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureMinFilter, (int)GL.GL_LINEAR));
result.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureMagFilter, (int)GL.GL_LINEAR));
result.Initialize();
glFramebufferTexture(GL.GL_FRAMEBUFFER, attachment_id[nextColorAttachmentIndex++], result.Id, level);
break;
case TextureAttachment.DepthAttachment:
result = new Texture(TextureTarget.Texture2D,
new TexImage2D(TexImage2D.Target.Texture2D, 0, (int)GL.GL_DEPTH_COMPONENT32, this.Width, this.Height, 0, GL.GL_DEPTH_COMPONENT, GL.GL_FLOAT));
// 设置默认滤波模式
result.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureMinFilter, (int)GL.GL_LINEAR));
result.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureMagFilter, (int)GL.GL_LINEAR));
// 设置深度比较模式
result.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureCompareMode, (int)GL.GL_COMPARE_REF_TO_TEXTURE));
result.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureCompareFunc, (int)GL.GL_LEQUAL));
// 设置边界截取模式
result.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureWrapS, (int)GL.GL_CLAMP_TO_EDGE));
result.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureWrapT, (int)GL.GL_CLAMP_TO_EDGE));
result.Initialize();
glFramebufferTexture(GL.GL_FRAMEBUFFER, GL.GL_DEPTH_ATTACHMENT, result.Id, level);
//glFramebufferTexture(GL.GL_FRAMEBUFFER, GL.GL_DEPTH_STENCIL_ATTACHMENT, result.Id, level);
//glFramebufferTexture2D(GL.GL_FRAMEBUFFER, GL.GL_DEPTH_ATTACHMENT, GL.GL_TEXTURE_2D, result.Id, level);
//glFramebufferTexture2D(GL.GL_FRAMEBUFFER, GL.GL_DEPTH_STENCIL_ATTACHMENT, GL.GL_TEXTURE_2D, result.Id, level);// error
break;
case TextureAttachment.StencilAttachment:
throw new NotImplementedException();
break;
case TextureAttachment.DepthStencilAttachment:
throw new NotImplementedException();
break;
default:
throw new NotImplementedException();
}
return(result);
}
private static Texture GenerateTexture(Bitmap[] bitmaps)
{
var storage = new TexImageBitmaps(bitmaps);
var texture = new Texture(TextureTarget.Texture2DArray, storage,
new TexParameteri(TexParameter.PropertyName.TextureWrapT, (int)GL.GL_REPEAT),
new TexParameteri(TexParameter.PropertyName.TextureWrapS, (int)GL.GL_REPEAT),
//new TexParameteri(TexParameter.PropertyName.TextureWrapR, (int)GL.GL_REPEAT),
new TexParameteri(TexParameter.PropertyName.TextureMinFilter, (int)GL.GL_LINEAR),
new TexParameteri(TexParameter.PropertyName.TextureMagFilter, (int)GL.GL_LINEAR));
texture.Initialize();
return(texture);
}
protected override void DoInitialize()
{
base.DoInitialize();
Bitmap bitmap;
if (string.IsNullOrEmpty(this.bitmapFilename))// display a cursor as default.
{ bitmap = ManifestResourceLoader.LoadBitmap(@"Resources\cursor_gold.png"); }
else
{ bitmap = new Bitmap(this.bitmapFilename); }
var texture = new Texture(TextureTarget.Texture2D, bitmap, new SamplerParameters());
texture.Initialize();
bitmap.Dispose();
this.SetUniform("tex", texture);
}
protected override void DoInitialize()
{
base.DoInitialize();
Bitmap bitmap = this.codedColors.GetBitmap(1024);
var texture = new Texture(TextureTarget.Texture1D, bitmap, new SamplerParameters());
this.codedColors = null;
texture.Initialize();
this.Sampler = texture;
bitmap.Dispose();
var renderer = this.Renderer as Renderer;
renderer.SetUniform("codedColorSampler", new samplerValue(TextureTarget.Texture1D,
texture.Id, 0));
}
/// <summary>
/// Gets an instance of <see cref="FontTexture"/>.
/// </summary>
/// <param name="fontBitmap"></param>
/// <param name="parameters"></param>
/// <param name="mipmapFiltering"></param>
/// <returns></returns>
public static FontTexture GetFontTexture(this FontBitmap fontBitmap,
SamplerParameters parameters = null,
MipmapFilter mipmapFiltering = MipmapFilter.LinearMipmapLinear)
{
var texture = new Texture(fontBitmap.GlyphBitmap,
parameters, mipmapFiltering);
texture.Initialize();
var result = new FontTexture();
result.GlyphFont = fontBitmap.GlyphFont;
result.GlyphHeight = fontBitmap.GlyphHeight;
result.TextureSize = fontBitmap.GlyphBitmap.Size;
result.GlyphInfoDictionary = fontBitmap.GlyphInfoDictionary;
result.TextureObj = texture;
return(result);
}
/// <summary>
/// Provides a <see cref="Texture"/> object generated from specified bitmap file.
/// </summary>
/// <param name="filename"></param>
public BitmapTextureSource(string filename)
{
var bmp = new System.Drawing.Bitmap(filename);
bmp.RotateFlip(System.Drawing.RotateFlipType.Rotate180FlipX);
var storage = new TexImageBitmap(bmp);
texture = new Texture(storage);
texture.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureWrapS, (int)GL.GL_CLAMP_TO_EDGE));
texture.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureWrapT, (int)GL.GL_CLAMP_TO_EDGE));
texture.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureWrapR, (int)GL.GL_CLAMP_TO_EDGE));
texture.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureMinFilter, (int)GL.GL_LINEAR));
texture.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureMagFilter, (int)GL.GL_LINEAR));
texture.Initialize();
bmp.Dispose();
}
protected override void DoInitialize()
{
base.DoInitialize();
Bitmap bitmap;
if (string.IsNullOrEmpty(this.bitmapFilename))// display a cursor as default.
{
bitmap = ManifestResourceLoader.LoadBitmap(@"Resources\cursor_gold.png");
}
else
{
bitmap = new Bitmap(this.bitmapFilename);
}
var texture = new Texture(TextureTarget.Texture2D, bitmap, new SamplerParameters());
texture.Initialize();
bitmap.Dispose();
this.SetUniform("tex", texture);
}
protected override void DoInitialize()
{
base.DoInitialize();
var bmp = new Bitmap(@"KleinBottle.png");
var texture = new Texture(new TexImage1D(GL.GL_RGBA, bmp.Width, GL.GL_BGRA, GL.GL_UNSIGNED_BYTE, new ImageDataProvider(bmp)));
texture.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureWrapS, (int)GL.GL_CLAMP_TO_EDGE));
texture.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureWrapT, (int)GL.GL_CLAMP_TO_EDGE));
texture.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureWrapR, (int)GL.GL_CLAMP_TO_EDGE));
texture.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureMinFilter, (int)GL.GL_LINEAR));
texture.BuiltInSampler.Add(new TexParameteri(TexParameter.PropertyName.TextureMagFilter, (int)GL.GL_LINEAR));
texture.Initialize();
bmp.Dispose();
var method = this.RenderUnit.Methods[0];
ShaderProgram program = method.Program;
program.SetUniform("tex", texture);
}
protected override void DoInitialize()
{
base.DoInitialize();
Bitmap bitmap;
if (string.IsNullOrEmpty(this.bitmapFilename))// display a cursor as default.
{
bitmap = ManifestResourceLoader.LoadBitmap(@"Resources\cursor_gold.png");
}
else
{
bitmap = new Bitmap(this.bitmapFilename);
}
var texture = new Texture(bitmap);
texture.Initialize();
bitmap.Dispose();
this.SetUniform("tex", new samplerValue(BindTextureTarget.Texture2D,
texture.Id, OpenGL.GL_TEXTURE0));
}
