Paul Henderson

@fasogbon See the last two posts on #10 for the solution to that error.

So far as I understand it, order-independent transparency requires keeping track of all the fragments hitting a pixel, including their occlusion ordering, in order to calculate the blending correctly; as...

Unfortunately I don't have access to the notes just now -- they're handwritten papers sitting in a pile in another country! However, if you have any specific questions, I'm happy...

- There is no particular reason for choosing the Scharr operator in this case. Any choice is an approximation; Scharr gives better results in some contexts, but may provide no...

The particular error is with 'linking' the cuda and opengl contexts. It sometimes happens when a non-nvidia version of libEGL is found -- however your library paths look correct. Could...

It looks like there's a problem with your nvidia driver's install of GL libraries. There should be a `/usr/lib/x86_64-linux-gnu/libEGL_nvidia` alongside the `_mesa` version. Did you install the nvidia driver using...

See #17, you need to find `libEGL.so` and add to `CMAKE_LIBRARY_PATH`

The libraries you listed there are from mesa and/or other packages, not from the nvidia driver. Run `ls -l /usr/lib/*/*GL*`, and that should include some entries with `_nvidia` in the...

`ls -l /usr/lib/*/*GL*` should show the nvidia GL libraries, regardless of whether you used the ubuntu package or nvidia runfile installer. For the last problem, see the troubleshooting notes in...

For the NDEBUG change, you need to still have the original flags too. So change that line 40 to `set(CMAKE_CUDA_FLAGS "${CMAKE_CUDA_FLAGS} -arch=sm_30 --expt-relaxed-constexpr -DNDEBUG")` instead of commenting it.