To give you some more choices of libraries out there: Polyboolean. I never tried this one, but it looks promising: http://www.complex-a5.ru/polyboolean/index.html General Polygon Clipper. This one works very well in practice and does triangulation as well as clipping and holes holes: http://www.cs.man.ac.uk/~toby/alan/software/ My personal recommendation: Use the tesselation from the GLU (OpenGL Utility Library). The … Read more
Think of DX12 as “DirectX without training wheels, without brakes, and at the moment maybe without tires”. It will be more than a ‘few months’ for DirectX 12 to have a rich set of tutorials, support libraries, best practices, rock-solid drivers, and widely deployed support in the operating system on end-users machines. It’s “bleed edge” … Read more
Each shader stage has its own frequency of invocations. I will use the OpenGL terminology, but D3D works the same way (since they’re both modelling the same hardware relationships). Vertex Shaders These are the second most complicated. They execute once for every input vertex… kinda. If you are using non-indexed rendering, then the ratio is … Read more
What is it about shaders that even potentially makes if statements performance problems? It has to do with how shaders get executed and where GPUs get their massive computing performance from. Separate shader invocations are usually executed in parallel, executing the same instructions at the same time. They’re simply executing them on different sets of … Read more
In the most general sense, no. OpenGL and Direct3D only allow one index per vertex; the index fetches from each stream of vertex data. Therefore, every unique combination of components must have its own separate index. So if you have a cube, where each face has its own normal, you will need to replicate the … Read more