Debugging Tools
In this section
Test Value
When developing shaders, new rendering techniques, VFX or materials, it's often useful to perform A/B testing of different code paths in a shader or rendering pipeline. To do it, engine contains Graphics.TestValue command value as debug utility to control visual or rendering features during development. For example, can be used to branch different code paths in shaders for A/B testing (perf or quality). The value of it can be changed via console or from code (even in non-Debug builds).
RenderDoc
RenderDoc is free MIT licensed stand-alone graphics debugger that allows quick and easy single-frame capture and detailed introspection. Launch editor with -shaderdebug command line to enable debugging data generation for shaders without shader compiler optimizations. Use -shaderprofile to run shaders with all optimizations but additional data generated for advanced performance profiling (works in non-Release game builds too).
Profiler
Graphics profiling can be done via external tools or right inside the engine via Profiler or ProfilerGPU.Dump command. It profiles next frame(s) rendering performance and dumps the results to the log (as a hierarchy structure). When using more than 1 frame, the results are averaged for more accurate profiling (especially for A/B testing).