naive vbo

gistfile1.txt

/*

referring to this link: https://www.khronos.org/opengl/wiki/Vertex_Specification_Best_Practices 
"Formatting VBO data":

does the following:

*/

GLuint v, n, c;

glGenBuffers(1, &v);
glBindBuffer(GL_ARRAY_BUFFER, v);
glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, nullptr);
glEnableVertexAttribArray(0);

glGenBuffers(1, &n);
glBindBuffer(GL_ARRAY_BUFFER, n);
glBufferData(GL_ARRAY_BUFFER, sizeof(normals), normals, GL_STATIC_DRAW);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 0, nullptr);
glEnableVertexAttribArray(1);

glGenBuffers(1, &c);
glBindBuffer(GL_ARRAY_BUFFER, c);
glBufferData(GL_ARRAY_BUFFER, sizeof(colors), colors, GL_STATIC_DRAW);
glVertexAttribPointer(2, 3, GL_FLOAT, GL_FALSE, 0, nullptr);
glEnableVertexAttribArray(2);

/* 
create

(VVVVNNNNCCCC)

or 

(VVVV) (NNNN) (CCCC)

*/