Question

I want to draw using gldrawarray in opengl es with a vertex array of 33 numbers, which is 11 points in 3D. And I also want to add the points into the vertex array by 33*n, so I need to draw many same shapes using each 11 points in the vertex array which contains more than 11 points. How can I do that?

Answer 1

Use the first and count parameters to issue multiple draw calls, one per object:

int verticesPerObject = 11;
for(int i = 0; i < totalVerticesInArray; i += verticesPerObject)
{
    glDrawArrays(GL_LINE_LOOP, i, verticesPerObject);
}