Question

I’ve made some rendering with out using VBO. Now i want to add VBO for more complex rendering. I’m just creating a VBO now, keeping the old rendering as it was and i render nothing with VBO now. Here is the code:

GLuint bufId;
glGenBuffers(1, &bufId);
glBindBuffer(type, bufId);
glBufferData(type, size, 0, GL_STATIC_DRAW);
//size = 100000;

That’s the only code about VBO. But if the last stroke is not commented then i get EXC_BAD_ACCESS in old rendering when drawing GL_TRIANGLE_STRIP. I’ve put glGetError() before this bad access and it returns 0. What is the problem? thanks

Answer 1

I’ve found the problem. You have to unbind VBO if you want to draw with out it:

glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);

after that everything worked