struct RENDER
{
    /*Program*/
    PFNGLCREATEPROGRAMPROC glCreateProgram;
    PFNGLDELETEPROGRAMPROC glDeleteProgram;
    PFNGLUSEPROGRAMPROC glUseProgram;
    PFNGLATTACHSHADERPROC glAttachShader;
    PFNGLDETACHSHADERPROC glDetachShader;
    PFNGLLINKPROGRAMPROC glLinkProgram;
    PFNGLGETPROGRAMIVPROC glGetProgramiv;
    PFNGLGETSHADERINFOLOGPROC glGetShaderInfoLog;
    PFNGLGETUNIFORMLOCATIONPROC glGetUniformLocation;
    PFNGLUNIFORM1IPROC glUniform1i;
    PFNGLUNIFORM1IVPROC glUniform1iv;
    PFNGLUNIFORM2IVPROC glUniform2iv;
    PFNGLUNIFORM3IVPROC glUniform3iv;
    PFNGLUNIFORM4IVPROC glUniform4iv;
    PFNGLUNIFORM1FPROC glUniform1f;
    PFNGLUNIFORM1FVPROC glUniform1fv;
    PFNGLUNIFORM2FVPROC glUniform2fv;
    PFNGLUNIFORM3FVPROC glUniform3fv;
    PFNGLUNIFORM4FVPROC glUniform4fv;
    PFNGLUNIFORMMATRIX4FVPROC glUniformMatrix4fv;
    PFNGLVERTEXATTRIB1FPROC glVertexAttrib1f;
    PFNGLVERTEXATTRIB1FVPROC glVertexAttrib1fv;
    PFNGLVERTEXATTRIB2FVPROC glVertexAttrib2fv;
    PFNGLVERTEXATTRIB3FVPROC glVertexAttrib3fv;
    PFNGLVERTEXATTRIB4FVPROC glVertexAttrib4fv;
    PFNGLENABLEVERTEXATTRIBARRAYPROC glEnableVertexAttribArray;
    PFNGLBINDATTRIBLOCATIONPROC glBindAttribLocation;

    /*Shader*/
    PFNGLCREATESHADERPROC glCreateShader;
    PFNGLDELETESHADERPROC glDeleteShader;
    PFNGLSHADERSOURCEPROC glShaderSource;
    PFNGLCOMPILESHADERPROC glCompileShader;
    PFNGLGETSHADERIVPROC glGetShaderiv;

    /*VBO*/
    PFNGLGENBUFFERSPROC glGenBuffers;
    PFNGLBINDBUFFERPROC glBindBuffer;
    PFNGLBUFFERDATAPROC glBufferData;
    PFNGLVERTEXATTRIBPOINTERPROC glVertexAttribPointer;
};