bare minimum vbo example

vbofun.cpp

		GLuint triangleVBO;

		//Vertices of a triangle (counter-clockwise winding)
		//float data[] = {1.0, 0.0, 1.0, 0.0, 0.0, -1.0, -1.0, 0.0, 1.0};
		float data[] = {0.0, 1.0, 0.0, -1.0, -1.0, 0.0, 1.0, -1.0, 0.0};// if the above doesn't work.

		//Create a new VBO and use the variable id to store the VBO id
		glGenBuffers(1, &triangleVBO);

		//Make the new VBO active
		glBindBuffer(GL_ARRAY_BUFFER, triangleVBO);

		//Upload vertex data to the video device
		glBufferData(GL_ARRAY_BUFFER, sizeof(data), data, GL_STATIC_DRAW);

		//Make the new VBO active. Repeat here incase changed since initialisation
		glBindBuffer(GL_ARRAY_BUFFER, triangleVBO);

		//Draw Triangle from VBO - do each time window, view point or data changes
		//Establish its 3 coordinates per vertex with zero stride in this array; necessary here
		glVertexPointer(3, GL_FLOAT, 0, NULL);

		//Establish array contains vertices (not normals, colours, texture coords etc)
		glEnableClientState(GL_VERTEX_ARRAY);

		//Actually draw the triangle, giving the number of vertices provided
		glDrawArrays(GL_TRIANGLES, 0, sizeof(data) / sizeof(float) / 3);