opengl cheatsheet - Serbipunk/notes GitHub Wiki

• glGenVertexArrays — generate vertex array object names - 生成（多少个）顶点对象

• glGenBuffers - generate buffer object names - 生成（多少个）Buffer对象

• glBindVertexArray — bind a vertex array object -- 绑定（GLuint）顶点对象

• glBindBuffer (GLenum target, GLuint buffer) — bind a named buffer object -- 绑定buffer对象

• glBufferData — creates and initializes a buffer object's data store. -- 创建buffer中的数据存储 (GLenum target, GLsizeiptr size, const void * data, GLenum usage)

• glEnableVertexAttribArray — Enable or disable a generic vertex attribute array -- 启用或禁用通用顶点属性数组 (GLuint index)

• glVertexAttribPointer — define an array of generic vertex attribute data -- 定义通用顶点属性数据的数组 (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void * pointer)

• glGenFramebuffers — generate framebuffer object names -- 创建帧缓冲对象名字 (GLsizei n, GLuint *ids)

• glBindFramebuffer -- bind a framebuffer to a framebuffer target -- 将帧缓冲区绑定到帧缓冲区目标 (GLenum target, GLuint framebuffer) target 3 cases: GL_DRAW_FRAMEBUFFER, GL_READ_FRAMEBUFFER or GL_FRAMEBUFFER

• glGenTextures -- generate texture names. -- 生成纹理名称 ( GLsizei n, GLuint * textures)

• glActiveTexture — select active texture unit -- 选择活跃的纹理单元

• glGenTextures

• glBindTexture

• glPixelStorei

• glTexImage2D

(1 channel example: glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, m_nWidth, m_nHeight, GL_RED, GL_UNSIGNED_BYTE, m_skinMaskArray[nFaceIndex].data());)

(4 channels example: ``)

• glTexSubImage2D

• glTexParameterf

• glGenBuffers(GLsizei n, GLuint * buffers) -- 在buffers中返回2个buffer object names。不能保证名称形成一组连续的整数；但是，可以保证在调用 glGenBuffers 之前没有立即使用返回的名称。

• glUniform1i -- Specify the value of a uniform variable for the current program object -- 指定一个统一变量(uniform variable)的值，为当前的程序对象(program object) -- (GLint location, GLint v0)

• glGetUniformLocation -- 获取着色器程序中统一变量的位置 (GLuint program, const GLchar* name) -> integer that represents the location of a specific uniform variable within a program object

• glPolygonMode --