== Linux ==
-* Run the application you want to trace as
+Run the application you want to trace as
LD_PRELOAD=/path/to/glxtrace.so /path/to/application
directory. You can specify the written trace filename by setting the
TRACE_FILE envirnment variable before running.
-* View the trace with
+View the trace with
/path/to/tracedump application.trace | less -R
-* Replay the trace with
+Replay the trace with
/path/to/glretrace application.trace
+The LD_PRELOAD mechanism should work with most applications. There are some
+applications, e.g., Unigine Heaven, which global function pointers with the
+same name as GL entrypoints, living in a shared object that wasn't linked with
+-Bsymbolic flag, so relocations to those globals function pointers get
+overwritten with the address to our wrapper library, and the application will
+segfault when trying to write to them. For these applications it is possible
+to trace by using glxtrace.so as an ordinary libGL.so and injecting into
+LD_LIBRARY_PATH:
+
+ ln -s glxtrace.so libGL.so
+ ln -s glxtrace.so libGL.so.1
+ ln -s glxtrace.so libGL.so.1.2
+ export LD_LIBRARY_PATH=/path/to/directory/where/glxtrace/is:$LD_LIBRARY_PATH
+ export TRACE_LIBGL=/path/to/real/libGL.so.1
+ /path/to/application
+
+
== Windows ==
* Copy opengl32.dll, d3d8.dll, or d3d9.dll from build/wrappers directory to the