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Overview

OpenGL Profiler collects trace and statistics for applications that use OpenGL. A trace is an ordered list of the OpenGL calls made by an application. Each entry in a trace shows a function name and the values of the parameters passed to the function. Statistics show cumulative totals, by function, for the number of times an application calls a function and the execution time of the function. You can also see the average execution time for a function, the percentage of time a function is used by OpenGL, and the percentage of time a function is used by the application.

The OpenGL functions that you’ll see in the trace and statistics include those defined by the OpenGL specification (see http://www.opengl.org) as well as the functions that are part of the low-level Mac OS X OpenGL programming interfaces—CGL. (See CGL Reference.)

OpenGL Profiler is also useful for inspecting and controlling various aspects of your application. For example, you can:

• View the OpenGL resources your application uses, such as textures, vertex programs, and shaders.

• View buffer contents, such as the depth and back buffers

• Set breakpoints on specific OpenGL functions and view the call stack

• Attach a script of OpenGL commands that executes at a breakpoint

• Enable or disable individual OpenGL commands

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