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图形学笔记 -- Irrlicht OpenGL 扩展支持 整理文档

Posted on January 22, 2021 (珠海)
图形学  OpenGL  Irrlicht 

\[NV/AMD/ATI \leadsto EXT \leadsto ARB \leadsto GL\]

一个 3D 引擎为了更好的性能，就只能适配这些不同的硬件。Irrlicht 用到的 284 个 API。 这些 API 就像后山上的野花， 一簇一簇的 ，这个也是 状态机 C 风格函数接口的特点。

开始觉得很难，学了一段时间的 OpenGL，觉得也就那样，尝试改造 3D 引擎，发现一千多个 API，常用的 284 个，而且 OpenGL & OpenGL ES 存在巨大差异，不同硬件之间还存在差异，唏嘘不已。

OpenGL ES & OpenGL 存在大量 API 交叉的情况，为了兼容，很多 API 采用 wglGetProcAddress 函数指针的形式。包含厂商后缀的都是 wglGetProcAddress，\(\color{pink}{ogladdr}\)。分了五类：

  • 只支持 GLES: \(\color{blue}{gles}\)（大概 36 个）
  • 只支持 OpenGL & wglGetProcAddress: \(\color{pink}{ogladdr}\)（大概 140 个）
  • 只支持 OpenGL: \(\color{red}{ogl}\)（大概 43 个）
  • 两个都支持 OpenGL & wglGetProcAddress: \(\color{blue}{gles}\&\color{pink}{ogladdr}\)（大概 27 个）
  • 两个都支持：\(\color{blue}{gles}\&\color{red}{ogl}\)（大概 38 个）

{'\(\color{blue}{gles}\)': 36, '\(\color{blue}{gles}\&\color{pink}{ogladdr}\)': 27, '\(\color{pink}{ogladdr}\)': 140, '\(\color{red}{ogl}\)': 43, '\(\color{blue}{gles}\&\color{red}{ogl}\)': 38}

遮挡查询 occlusion query

  • glBeginOcclusionQueryNV , glBeginQueryARB \(\bbox[yellow]{Queries}\) \(\color{pink}{ogladdr}\) // extGlBeginQuery
  • glDeleteOcclusionQueriesNV , glDeleteQueriesARB \(\bbox[yellow]{Queries}\) \(\color{pink}{ogladdr}\) // extGlDeleteQueries
  • glEndOcclusionQueryNV , glEndQueryARB \(\bbox[yellow]{Queries}\) \(\color{pink}{ogladdr}\) // extGlEndQuery
  • glGenOcclusionQueriesNV , glGenQueriesARB \(\bbox[yellow]{Queries}\) \(\color{pink}{ogladdr}\) // extGlGenQueries
  • glGetOcclusionQueryivNV , glGetQueryObjectivARB \(\bbox[yellow]{Queries}\) \(\color{pink}{ogladdr}\) // extGlGetQueryObjectiv
  • glGetOcclusionQueryuivNV , glGetQueryObjectuivARB \(\bbox[yellow]{Queries}\) \(\color{pink}{ogladdr}\) // extGlGetQueryObjectuiv
  • glGetQueryivARB \(\bbox[yellow]{Queries}\) \(\color{pink}{ogladdr}\) // extGlGetQueryiv
  • glIsOcclusionQueryNV , glIsQueryARB \(\bbox[yellow]{Queries}\) \(\color{pink}{ogladdr}\) // extGlIsQuery

OpenGL WGL

  • wglCreateContext \(\color{red}{ogl}\)
  • wglDeleteContext \(\color{red}{ogl}\)
  • wglGetCurrentDC \(\color{red}{ogl}\)
  • wglGetProcAddress \(\color{red}{ogl}\)
  • wglMakeCurrent \(\color{red}{ogl}\)
  • wglChoosePixelFormatARB \(\color{pink}{ogladdr}\) // ? 请求并选择一个匹配的像素格式
  • wglCreateContextAttribsARB \(\color{pink}{ogladdr}\) // ? 创建和使用 OpenGL
  • wglGetExtensionsStringARB \(\color{pink}{ogladdr}\) // ? 检查是否支持 WGL_ARB_extensions_string 扩展
  • wglSwapIntervalEXT \(\color{pink}{ogladdr}\) // extGlSwapInterval 是否启用垂直同步

GLES EGL

  • eglBindAPI \(\color{blue}{gles}\)
  • eglChooseConfig \(\color{blue}{gles}\)
  • eglCreateContext \(\color{blue}{gles}\)
  • eglCreateWindowSurface \(\color{blue}{gles}\)
  • eglDestroyContext \(\color{blue}{gles}\)
  • eglDestroySurface \(\color{blue}{gles}\)
  • eglGetConfigAttrib \(\color{blue}{gles}\)
  • eglGetConfigs \(\color{blue}{gles}\)
  • eglGetDisplay \(\color{blue}{gles}\)
  • eglGetError \(\color{blue}{gles}\)
  • eglInitialize \(\color{blue}{gles}\)
  • eglMakeCurrent \(\color{blue}{gles}\)
  • eglSwapBuffers \(\color{blue}{gles}\)
  • eglSwapInterval \(\color{blue}{gles}\)
  • eglTerminate \(\color{blue}{gles}\)

glUniform 系列

  • glUniform1fv \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\)
  • glUniform1iv \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\)
  • glUniform1uiv \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\)
  • glUniform2fv \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\)
  • glUniform2iv \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\)
  • glUniform2uiv \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\)
  • glUniform3fv \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\)
  • glUniform3iv \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\)
  • glUniform3uiv \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\)
  • glUniform4fv \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\)
  • glUniform4iv \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\)
  • glUniform4uiv \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\)
  • glUniformMatrix2fv \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\)
  • glUniformMatrix2x3fv \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\)
  • glUniformMatrix2x4fv \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\)
  • glUniformMatrix3fv \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\)
  • glUniformMatrix3x2fv \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\)
  • glUniformMatrix3x4fv \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\)
  • glUniformMatrix4fv \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\)
  • glUniformMatrix4x2fv \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\)
  • glUniformMatrix4x3fv \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\)
  • glUniform1fvARB \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\) // extGlUniform1fv
  • glUniform1ivARB \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\) // extGlUniform1iv
  • glUniform2fvARB \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\) // extGlUniform2fv
  • glUniform2ivARB \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\) // extGlUniform2iv
  • glUniform3fvARB \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\) // extGlUniform3fv
  • glUniform3ivARB \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\) // extGlUniform3iv
  • glUniform4fvARB \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\) // extGlUniform4fv
  • glUniform4ivARB \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\) // extGlUniform4iv
  • glUniformMatrix2fvARB \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\) // extGlUniformMatrix2fv
  • glUniformMatrix3fvARB \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\) // extGlUniformMatrix3fv
  • glUniformMatrix4fvARB \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\) // extGlUniformMatrix4fv
  • glGetActiveUniformARB \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\) // extGlGetActiveUniformARB
  • glGetUniformLocationARB \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\) // extGlGetUniformLocationARB
  • glGetActiveUniform \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
  • glGetUniformLocation \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)

模板测试

  • glClearStencil \(\bbox[yellow]{Rendering}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
  • glStencilFunc \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
  • glStencilMask \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
  • glStencilOp \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
  • glStencilFuncSeparate \(\bbox[yellow]{State Management}\) \(\color{pink}{ogladdr}\)
  • glStencilOpSeparate \(\bbox[yellow]{State Management}\) \(\color{pink}{ogladdr}\)
  • glStencilFuncSeparateATI \(\bbox[yellow]{State Management}\) \(\color{pink}{ogladdr}\) // extGlStencilFuncSeparate
  • glStencilOpSeparateATI \(\bbox[yellow]{State Management}\) \(\color{pink}{ogladdr}\) // extGlStencilOpSeparate

general functions

  • glActiveTexture \(\bbox[yellow]{Textures}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
  • glCompressedTexImage2D \(\bbox[yellow]{Textures}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
  • glCompressedTexSubImage2D \(\bbox[yellow]{Textures}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
  • glActiveTextureARB \(\bbox[yellow]{Textures}\) \(\color{pink}{ogladdr}\) // irrGlActiveTexture
  • glClientActiveTextureARB \(\bbox[yellow]{GL2 Textures}\) \(\color{pink}{ogladdr}\) // irrGlClientActiveTexture
  • glPointParameterfARB \(\bbox[yellow]{State Management}\) \(\color{pink}{ogladdr}\) // extGlPointParameterf
  • glPointParameterfvARB \(\bbox[yellow]{State Management}\) \(\color{pink}{ogladdr}\) // extGlPointParameterfv

shader programming

  • glGenProgramsNV , glGenProgramsARB \(\color{pink}{ogladdr}\) // extGlGenPrograms
  • glBindProgramNV , glBindProgramARB \(\color{pink}{ogladdr}\) // extGlBindProgram
  • glLoadProgramNV \(\color{pink}{ogladdr}\) // extGlLoadProgram
  • glProgramStringARB \(\color{pink}{ogladdr}\) // extGlProgramString, 貌似跟上面一个用途一样
  • glDeleteProgramsNV , glDeleteProgramsARB \(\color{pink}{ogladdr}\) // extGlDeletePrograms
  • glProgramLocalParameter4fvARB \(\color{pink}{ogladdr}\) // extGlProgramLocalParameter4fv
  • glCreateProgramObjectARB \(\color{pink}{ogladdr}\) // extGlCreateProgramObject
  • glCreateShaderObjectARB \(\color{pink}{ogladdr}\) // extGlCreateShaderObject
  • glCreateProgram \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
  • glDeleteProgram \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
  • glLinkProgram \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
  • glUseProgram \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
  • glCreateShader \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
  • glDeleteShader \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
  • glCompileShader \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
  • glAttachShader \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
  • glGetAttachedShaders \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
  • glGetProgramInfoLog \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\) // extGlGetProgramInfoLog
  • glGetShaderInfoLog \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
  • glGetProgramiv \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\) // extGlGetProgramiv
  • glGetShaderiv \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
  • glShaderSource \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
  • glShaderSourceARB \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\) // extGlShaderSourceARB
  • glCompileShaderARB \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\) // extGlCompileShaderARB
  • glLinkProgramARB \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\) // extGlLinkProgramARB
  • glGetInfoLogARB \(\color{pink}{ogladdr}\) // extGlGetInfoLog
  • glGetObjectParameterivARB \(\color{pink}{ogladdr}\) // extGlGetObjectParameteriv
  • glUseProgramObjectARB \(\color{pink}{ogladdr}\) // extGlUseProgramObject
  • glAttachObjectARB \(\color{pink}{ogladdr}\) // extGlAttachObject
  • glDeleteObjectARB \(\color{pink}{ogladdr}\) // extGlDeleteObject
  • glGetAttachedObjectsARB \(\color{pink}{ogladdr}\) // extGlGetAttachedObjects

framebuffer objects

  • glGenFramebuffers \(\bbox[yellow]{Frame Buffers}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
  • glBindFramebuffer \(\bbox[yellow]{Frame Buffers}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
  • glCheckFramebufferStatus \(\bbox[yellow]{Frame Buffers}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
  • glFramebufferTexture2D \(\bbox[yellow]{Frame Buffers}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
  • glDeleteFramebuffers \(\bbox[yellow]{Frame Buffers}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\) // irrGlDeleteFramebuffers
  • glGenerateMipmap \(\bbox[yellow]{Frame Buffers}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
  • glGenFramebuffersEXT \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\) // irrGlGenFramebuffers
  • glBindFramebufferEXT \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\) // irrGlBindFramebuffer
  • glCheckFramebufferStatusEXT \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\) // irrGlCheckFramebufferStatus
  • glFramebufferTexture2DEXT \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\) // irrGlFramebufferTexture2D
  • glDeleteFramebuffersEXT \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\) // irrGlDeleteFramebuffers
  • glBindRenderbuffer \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\)
  • glDeleteRenderbuffers \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\)
  • glGenRenderbuffers \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\)
  • glRenderbufferStorage \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\)
  • glFramebufferRenderbuffer \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\)
  • glFramebufferTexture \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\)
  • glBindRenderbufferEXT \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\) // irrGlBindRenderbuffer
  • glDeleteRenderbuffersEXT \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\) // irrGlDeleteRenderbuffers
  • glGenRenderbuffersEXT \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\) // irrGlGenRenderbuffers
  • glRenderbufferStorageEXT \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\) // irrGlRenderbufferStorage
  • glFramebufferRenderbufferEXT \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\) // irrGlFramebufferRenderbuffer
  • glGenerateMipmapEXT \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\) // irrGlGenerateMipmap
  • glDrawBuffer \(\bbox[yellow]{Rendering}\) \(\color{red}{ogl}\)
  • glDrawBuffersATI \(\bbox[yellow]{Frame Buffers}\) , glDrawBuffersARB \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\) // irrGlDrawBuffers

vertex buffer object

  • glGenBuffers \(\bbox[yellow]{Buffer Objects}\) \(\color{blue}{gles}\)
  • glBindBuffer \(\bbox[yellow]{Buffer Objects}\) \(\color{blue}{gles}\)
  • glBufferData \(\bbox[yellow]{Buffer Objects}\) \(\color{blue}{gles}\)
  • glBufferSubData \(\bbox[yellow]{Buffer Objects}\) \(\color{blue}{gles}\)
  • glDeleteBuffers \(\bbox[yellow]{Buffer Objects}\) \(\color{blue}{gles}\)
  • glGenBuffersARB \(\bbox[yellow]{Buffer Objects}\) \(\color{pink}{ogladdr}\) // extGlGenBuffers
  • glBindBufferARB \(\bbox[yellow]{Buffer Objects}\) \(\color{pink}{ogladdr}\) // extGlBindBuffer
  • glBufferDataARB \(\bbox[yellow]{Buffer Objects}\) \(\color{pink}{ogladdr}\) // extGlBufferData
  • glDeleteBuffersARB \(\bbox[yellow]{Buffer Objects}\) \(\color{pink}{ogladdr}\) // extGlDeleteBuffers
  • glBufferSubDataARB \(\bbox[yellow]{Buffer Objects}\) \(\color{pink}{ogladdr}\) // extGlBufferSubData
  • glGetBufferSubDataARB \(\bbox[yellow]{Buffer Objects}\) \(\color{pink}{ogladdr}\) // extGlGetBufferSubData
  • glMapBufferARB \(\bbox[yellow]{Buffer Objects}\) \(\color{pink}{ogladdr}\) // extGlMapBuffer
  • glUnmapBufferARB \(\bbox[yellow]{Buffer Objects}\) \(\color{pink}{ogladdr}\) // extGlUnmapBuffer
  • glIsBufferARB \(\bbox[yellow]{Buffer Objects}\) \(\color{pink}{ogladdr}\) // extGlIsBuffer
  • glGetBufferParameterivARB \(\bbox[yellow]{Buffer Objects}\) \(\color{pink}{ogladdr}\) // extGlGetBufferParameteriv
  • glGetBufferPointervARB \(\bbox[yellow]{Buffer Objects}\) \(\color{pink}{ogladdr}\) // extGlGetBufferPointerv
  • glProvokingVertexEXT \(\bbox[yellow]{Buffer Objects}\) \(\color{pink}{ogladdr}\) // extGlProvokingVertex
  • glProvokingVertex \(\bbox[yellow]{Buffer Objects}\) \(\color{pink}{ogladdr}\)
    • specifiy the vertex to be used as the source of data for flat shaded varyings。
    • 指定哪个点的数据作为平面着色的数据源。from
  • glProgramParameteriEXT \(\bbox[yellow]{Shaders}\) , glProgramParameteriARB \(\bbox[yellow]{Shaders}\) \(\color{pink}{ogladdr}\) // extGlProgramParameteri
    • glProgramParameteri — specify a parameter for a program object。

纹理

  • glTextureSubImage2D \(\bbox[yellow]{Textures}\) , glTexSubImage2D \(\bbox[yellow]{Textures}\) \(\color{pink}{ogladdr}\)
    • specify a two-dimensional texture subimage.
  • glTextureStorage2D \(\bbox[yellow]{Textures}\) , glTexStorage2D \(\bbox[yellow]{Textures}\) \(\color{pink}{ogladdr}\)
    • glTexStorage2D, glTextureStorage2D — simultaneously specify storage for all levels of a two-dimensional or one-dimensional array texture.
  • glTextureStorage3D \(\bbox[yellow]{Textures}\) , glTexStorage3D \(\bbox[yellow]{Textures}\) \(\color{pink}{ogladdr}\)
    • glTexStorage3D, glTextureStorage3D — simultaneously specify storage for all levels of a three-dimensional, two-dimensional array or cube-map array texture.
  • glGetTextureImage \(\bbox[yellow]{Textures}\) \(\color{pink}{ogladdr}\)
    • 红宝书 p206 获取纹理数据。
    • 从纹理 texture 中获取图像数据。level 表示细节层次的层数。format 和 type 表示所需数据的像素格式和数据类型。pixels 可以被理解为用户内存中的一个地址，用来存储图像数据，或者如果当前有缓存对象绑定到 GL_PIXEL_PACK_BUFFER，这里设置的就是图像数据传递到缓存对象时的数据偏移地址。
  • glGetTexImage \(\bbox[yellow]{Textures}\) \(\color{red}{ogl}\)
    • glGetTexImage — return a texture image.
  • glTextureStorage2DEXT \(\bbox[yellow]{Textures}\) \(\color{pink}{ogladdr}\) // extGlTextureStorage2D
  • glTextureSubImage2DEXT \(\bbox[yellow]{Textures}\) \(\color{pink}{ogladdr}\) // extGlTextureSubImage2D
  • glTextureStorage3DEXT \(\bbox[yellow]{Textures}\) \(\color{pink}{ogladdr}\) // extGlTextureStorage3D
  • glGetTextureImageEXT \(\bbox[yellow]{Textures}\) \(\color{pink}{ogladdr}\) // extGlGetTextureImage
  • glNamedFramebufferTexture \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\)
    • glFramebufferTexture — attach a level of a texture object as a logical buffer of a framebuffer object。
  • glNamedFramebufferTextureEXT \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\) // extGlNamedFramebufferTexture
  • glTextureParameterf \(\bbox[yellow]{Textures}\) \(\color{pink}{ogladdr}\)
    • set texture parameters。
  • glTextureParameterfv \(\bbox[yellow]{Textures}\) \(\color{pink}{ogladdr}\)
  • glTextureParameteri \(\bbox[yellow]{Textures}\) \(\color{pink}{ogladdr}\)
  • glTextureParameteriv \(\bbox[yellow]{Textures}\) \(\color{pink}{ogladdr}\)
    • set texture parameters。
  • glCreateTextures \(\bbox[yellow]{Textures}\) \(\color{pink}{ogladdr}\)
    • create texture objects。Create a new 2D texture object。
  • glCreateFramebuffers \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\)
    • create framebuffer objects。
  • glBindTextures \(\bbox[yellow]{Textures}\) \(\color{pink}{ogladdr}\)
    • bind one or more named textures to a sequence of consecutive texture units。
  • glGenTextures \(\bbox[yellow]{Textures}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • generate texture names。
    • 生成纹理的函数。函数根据纹理参数返回 n 个纹理索引。纹理名称集合不必是一个连续的整数集合。
  • glBindTexture \(\bbox[yellow]{Textures}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • bind a named texture to a texturing target。
    • 允许建立一个绑定到目标纹理的有名称的纹理。
  • glDeleteTextures \(\bbox[yellow]{Textures}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • delete named textures。
  • glGenerateTextureMipmap \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\)
  • glGenerateTextureMipmapEXT \(\bbox[yellow]{Frame Buffers}\) \(\color{pink}{ogladdr}\) // extGlGenerateTextureMipmap
    • glGenerateMipmap, glGenerateTextureMipmap — generate mipmaps for a specified texture object。

深度测试

  • glClearDepthf \(\bbox[yellow]{Rendering}\) \(\color{blue}{gles}\)
    • specify the clear value for the depth buffer。
  • glClearDepth \(\bbox[yellow]{Rendering}\) \(\color{red}{ogl}\)
    • specify the clear value for the depth buffer。
    • 设置深度缓存的清除值。
  • glDepthFunc \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • specify the value used for depth buffer comparisons。
    • 通过目标像素与当前像素在 z 方向上值大小的比较是否满足参数指定的条件，来决定在深度（z 方向）上是否绘制该目标像素。该函数只有启用“深度测试”时才有效，参考 glEnable(GL_DEPTH_TEST) 和 glDisable(GL_DEPTH_TEST)。
  • glDepthMask \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • enable or disable writing into the depth buffer。

颜色混合 Blend indexed

  • glDisableIndexedEXT \(\color{pink}{ogladdr}\) // irrGlDisableIndexed
  • glEnableIndexedEXT \(\color{pink}{ogladdr}\) // irrGlEnableIndexed
  • glColorMaskIndexedEXT \(\color{pink}{ogladdr}\) // irrGlColorMaskIndexed
    • glColorMask — enable and disable writing of frame buffer color components。
  • glBlendFuncIndexedAMD , glBlendFunciARB \(\bbox[yellow]{State Management}\) \(\color{pink}{ogladdr}\) // irrGlBlendFuncIndexed
  • glBlendFuncSeparateIndexedAMD , glBlendFuncSeparateiARB \(\bbox[yellow]{State Management}\) \(\color{pink}{ogladdr}\) // irrGlBlendFuncSeparateIndexed
  • glBlendEquationIndexedAMD , glBlendEquationiARB \(\bbox[yellow]{State Management}\) \(\color{pink}{ogladdr}\) // irrGlBlendEquationIndexed
  • glBlendEquationSeparateIndexedAMD , glBlendEquationSeparateiARB \(\bbox[yellow]{State Management}\) \(\color{pink}{ogladdr}\) // irrGlBlendEquationSeparateIndexed
  • glBlendEquationEXT \(\bbox[yellow]{State Management}\) \(\color{pink}{ogladdr}\) // irrGlBlendEquation
  • glBlendEquationSeparateEXT \(\bbox[yellow]{State Management}\) \(\color{pink}{ogladdr}\) // ?
  • glBlendFuncSeparateEXT \(\bbox[yellow]{State Management}\) \(\color{pink}{ogladdr}\) // irrGlBlendFuncSeparate
  • glBlendEquation \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
    • specify the equation used for both the RGB blend equation and the Alpha blend equation。
    • 设置 BLEND 方程式。
  • glBlendEquationSeparate \(\bbox[yellow]{State Management}\) \(\color{pink}{ogladdr}\)
    • 对 RGB 和 Alpha 分别设置 BLEND 方程式。
  • glBlendFuncSeparate \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{pink}{ogladdr}\)
    • specify pixel arithmetic for RGB and alpha components separately。
    • 对 RGB 和 Alpha 分别设置 BLEND 函数。
  • glBlendFunc \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • 设置 BLEND 函数。

GLES Only

  • glBindAttribLocation \(\bbox[yellow]{Shaders}\) \(\color{blue}{gles}\)
    • Associates a generic vertex attribute index with a named attribute variable。
    • 指定属性变量名和通用属性索引之间的关联。
  • glDisableVertexAttribArray \(\bbox[yellow]{Buffer Objects}\) \(\color{blue}{gles}\)
    • 禁用 index 指定的通用顶点属性数组。
    • Enable or disable a generic vertex attribute array。
  • glEnableVertexAttribArray \(\bbox[yellow]{Buffer Objects}\) \(\color{blue}{gles}\)
    • Enable or disable a generic vertex attribute array。
  • glVertexAttribPointer \(\bbox[yellow]{Buffer Objects}\) \(\color{blue}{gles}\)
    • define an array of generic vertex attribute data。

OpenGL Only

  • glDisableClientState \(\bbox[yellow]{Client Arrays}\) \(\color{red}{ogl}\)
    • enable or disable client-side capability。
    • The glEnableClientState and glDisableClientState functions enable and disable arrays respectively.
  • glEnableClientState \(\bbox[yellow]{Client Arrays}\) \(\color{red}{ogl}\)
    • enable or disable client-side capability。
  • glClipPlane \(\bbox[yellow]{GL2 Rasterization}\) \(\color{red}{ogl}\)
    • 定义一个裁剪平面。
    • specify a plane against which all geometry is clipped。
  • glColor4ub \(\bbox[yellow]{Immediate Mode}\) \(\color{red}{ogl}\)
    • Sets the current color.
  • glColorMaterial \(\bbox[yellow]{Fixed Function}\) \(\color{red}{ogl}\)
    • cause a material color to track the current color。
  • glColorPointer \(\bbox[yellow]{Client Arrays}\) \(\color{red}{ogl}\)
    • define an array of colors。
  • glFogf \(\bbox[yellow]{GL2 Rasterization}\) \(\color{red}{ogl}\)
    • The glFogf and function specifies fog parameters.
  • glFogfv \(\bbox[yellow]{GL2 Rasterization}\) \(\color{red}{ogl}\)
    • The glFogfv function specifies fog parameters.
  • glFogi \(\bbox[yellow]{GL2 Rasterization}\) \(\color{red}{ogl}\)
    • The glFogi function specifies fog parameters.
  • glLightModelfv \(\bbox[yellow]{Fixed Function}\) \(\color{red}{ogl}\)
    • The glLightModelfv function sets lighting model parameters.
  • glLightModeli \(\bbox[yellow]{Fixed Function}\) \(\color{red}{ogl}\)
    • The glLightModeli function sets lighting model parameters.
  • glLightf \(\bbox[yellow]{Fixed Function}\) \(\color{red}{ogl}\)
    • The glLightf function returns light source parameter values.
  • glLightfv \(\bbox[yellow]{Fixed Function}\) \(\color{red}{ogl}\)
    • The glLightfv function returns light source parameter values.
  • glNormalPointer \(\bbox[yellow]{Client Arrays}\) \(\color{red}{ogl}\)
    • define an array of normals。
  • glPointSize \(\bbox[yellow]{State Management}\) \(\color{red}{ogl}\)
    • specify the diameter of rasterized points。
  • glPolygonMode \(\bbox[yellow]{State Management}\) \(\color{red}{ogl}\)
    • select a polygon rasterization mode。
  • glRectf \(\bbox[yellow]{GL2 Rasterization}\) \(\color{red}{ogl}\)
    • draw a rectangle。
  • glAlphaFunc \(\bbox[yellow]{Fixed Function}\) \(\color{red}{ogl}\)
    • specify the alpha test function。
  • glVertexPointer \(\bbox[yellow]{Client Arrays}\) \(\color{red}{ogl}\)
    • define an array of vertex data。
  • glTranslatef \(\bbox[yellow]{Matrix State}\) \(\color{red}{ogl}\)
    • multiply the current matrix by a translation matrix。
  • glTexCoordPointer \(\bbox[yellow]{Client Arrays}\) \(\color{red}{ogl}\)
    • define an array of texture coordinates。
  • glTexEnvf \(\bbox[yellow]{Fixed Function}\) \(\color{red}{ogl}\)
    • The glTexEnvf function sets a texture environment parameter.
  • glTexEnvi \(\bbox[yellow]{Fixed Function}\) \(\color{red}{ogl}\)
    • set texture environment parameters。
  • glTexGeni \(\bbox[yellow]{Fixed Function}\) \(\color{red}{ogl}\)
    • control the generation of texture coordinates。
  • glShadeModel \(\bbox[yellow]{Fixed Function}\) \(\color{red}{ogl}\)
    • select flat or smooth shading。
  • glPushAttrib \(\bbox[yellow]{Fixed Function}\) \(\color{red}{ogl}\)
    • push and pop the server attribute stack。
  • glPushMatrix \(\bbox[yellow]{Matrix State}\) \(\color{red}{ogl}\)
    • push and pop the current matrix stack。
  • glPopAttrib \(\bbox[yellow]{Fixed Function}\) \(\color{red}{ogl}\)
    • push and pop the server attribute stack。
  • glPopMatrix \(\bbox[yellow]{Matrix State}\) \(\color{red}{ogl}\)
    • push and pop the current matrix stack。
  • glLoadIdentity \(\bbox[yellow]{Matrix State}\) \(\color{red}{ogl}\)
    • replace the current matrix with the identity matrix。
  • glLoadMatrixf \(\bbox[yellow]{Matrix State}\) \(\color{red}{ogl}\)
    • replace the current matrix with the specified matrix。
  • glMaterialf \(\bbox[yellow]{Immediate Mode}\) \(\color{red}{ogl}\)
    • specify material parameters for the lighting model。
  • glMaterialfv \(\bbox[yellow]{Immediate Mode}\) \(\color{red}{ogl}\)
    • 指定用于光照计算的当前材质属性。
  • glMatrixMode \(\bbox[yellow]{Matrix State}\) \(\color{red}{ogl}\)
    • specify which matrix is the current matrix。
  • glMultMatrixf \(\bbox[yellow]{Matrix State}\) \(\color{red}{ogl}\)
    • multiply the current matrix with the specified matrix。

都支持的基本 API

  • glReadBuffer \(\bbox[yellow]{Rendering}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • select a color buffer source for pixels。
  • glReadPixels \(\bbox[yellow]{Rendering}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • read a block of pixels from the frame buffer。
  • glDrawArrays \(\bbox[yellow]{Buffer Objects}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • render primitives from array data。
  • glDrawElements \(\bbox[yellow]{Buffer Objects}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • render primitives from array data。
  • glEnable \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • enable or disable server-side GL capabilities。
  • glDisable \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • enable or disable server-side GL capabilities。
  • glIsEnabled \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • test whether a capability is enabled。
  • glClear \(\bbox[yellow]{Rendering}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • clear buffers to preset values。
  • glClearColor \(\bbox[yellow]{Rendering}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • specify clear values for the color buffers。
  • glFrontFace \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • define front- and back-facing polygons。
  • glCullFace \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • specify whether front- or back-facing facets can be culled。
  • glFlush \(\bbox[yellow]{Rendering}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • 强制刷新缓冲。
    • force execution of GL commands in finite time。
  • glViewport \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • set the viewport。
  • glGetString \(\bbox[yellow]{Utility}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • return a string describing the current GL connection。
  • glGetError \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • return error information。
  • glGetFloatv \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • return the value or values of a selected parameter。
  • glGetIntegerv \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • return the value or values of a selected parameter。
  • glHint \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • specify implementation-specific hints。
    • 指定特定于实现的提示。
  • glTexParameterf \(\bbox[yellow]{Textures}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • set texture parameters。
    • 纹理过滤函数。
  • glTexParameteri \(\bbox[yellow]{Textures}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • set texture parameters。
    • 纹理过滤函数。
  • glLineWidth \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • specify the width of rasterized lines。
    • 设置线段的宽度。
  • glScissor \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • define the scissor box。
    • 剪裁测试用于限制绘制区域。
  • glCopyTexSubImage2D \(\bbox[yellow]{Textures}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • copy a two-dimensional texture subimage。
    • 复制二维纹理子图像。
  • glColorMask \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • enable and disable writing of color buffer components。
    • 启用和禁用帧缓冲区颜色分量的写入。
  • glPolygonOffset \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • set the scale and units used to calculate depth values。
    • 设置计算深度值的拉伸比和单位。
  • glPixelStorei \(\bbox[yellow]{State Management}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • set pixel storage modes。
    • 设置像素存储模式。
  • glTexImage2D \(\bbox[yellow]{Textures}\) \(\color{blue}{gles}\&\color{red}{ogl}\)
    • specify a two-dimensional texture image。
    • 指定一个二维的纹理图片。

JS CODE for docs.gl

var lip = $("li");
for (var i = 0; i < lip.length; i++) {
    var span = $(lip[i]).find("span");
    if (!span.length) continue;
    var subli = $(lip[i]).find("li");
    console.log("#", span.text(), subli.length);
    for (var j = 0; j < subli.length; j++) {
        var li = $(subli[j]);
        console.log(li.text(), span.text());
    }
}

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