Giawa.com Website Review

This will be a quick one, because I’m knee de*p in refactoring some of the reflection code. I use occlusion culling on reflective surfaces to ensure that I only render the reflection when necessary. Unfortunately, occlusion querying requires the GPU to finish rendering the surface that is being tested against. This is basically equivalent to calling glFlush, which can stall the pipeline. On my previous GPU this didn’t appear to be a huge deal, but on my new GPU this is a big problem! Check out this screenshot from GPU PerfStudio What is my CPU so busy with? Lets dig into the OpenGL API calls using the same profiler: Ok, I think I’ve found the problem. Lets track down the offending C# code. Yaaaaa, that’s a problem. We can use the query results from the previous frame, incurring a single frame latency before the reflection will be rendered, but will anyone notice? It just takes a few lines to re-order the commands and draw the water based on the previous frame the query is ready and remove the bottle neck. This is all at the expense of one frame delay before updating the reflection. Looks like we’re back in business! Profiling is a very nice way to see what is impacting the performance of the application. Until next I ended up playing with my CNC machine longer than expected, so tonight will be a pretty quick blog post! I want to take a bit of time to chat about the Lua scripting language and how Summer Dawn (and LLF) interface to Lua. I use Lua as a scripting language to help enable the which are bindings and a wrapper for using Lua within the .NET framework. It makes interfacing with Lua pretty straight forward. After acquiring your copy of NLua (which is under the permissive MIT license) you have to create a Lua environment. values. There are probably more efficient ways to do this, but it gets the job done. We can then get a reference to this function and call it from C# code!     double? result = (double?)scriptFunc.Call(i).First();     Console.WriteLine(fibonacci({0}) = {1}, i, result);