The 7 steps that OpenGL ES provides for caching:
1. Generate glGenBuffers() - Request OpenGL ES to generate a unique identifier for the graphics processor controlled cache.
2. Bind glBindBuffer() - tells OpenGL ES to use a cache for the next operation.
3. Buffered data glBufferData() or glBufferSubData() - Lets OpenGL ES initialize enough contiguous memory for the currently bound cache allocation (usually copying data from CPU-controlled memory to allocated memory).
4. Enable or disable glEnableVertexAttribArray() or glDisVertexAttribArray() - tells OpenGL ES whether to use the data in the cache in the next rendering.
5, set the pointer glVertexAttribPointer () - tell OpenGL ES the type of data in the cache and the memory offset value of all the data that needs to be accessed.
6. Draw glDrawArrays() or glDrawElements() - tells OpenGL ES to render the entire scene or part of a scene using the data in the buffer that is currently bound and enabled.
7, delete glDeleteBuffers () - tell OpenGL ES to delete the previously generated cache disease release related resources.
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