ifi | IFi - the interactive firewall | Firewall library

I'm trying to write a bare minimum GPU raycaster using compute shaders in OpenGL. I'm confident the raycasting itself is functional, as I've gotten clean outlines of bounding boxes via a ray-box intersection algorithm.

However, when attempting ray-triangle intersection, I get strange artifacts. My shader is programmed to simply test for a ray-triangle intersection, and color the pixel white if an intersection was found and black otherwise. Instead of the expected behavior, when the triangle should be visible onscreen, the screen is instead filled with black and white squares/blocks/tiles which flicker randomly like TV static. The squares are at most 8x8 pixels (the size of my compute shader blocks), although there are dots as small as single pixels as well. The white blocks generally lie in the expected area of my triangle, although sometimes they are spread out across the bottom of the screen as well.

Here is a video of the artifact. In my full shader the camera can be rotated around and the shape appears more triangle-like, but the flickering artifact is the key issue and still appears in this video which I generated from the following minimal version of my shader code:

I have problems with Kerberising my NiFi.

My setup is such that I have Docker and in it two containers: apache/nifi and gcavalcante8808/krb5-server. NiFi is already secured with HTTPS and Initial admin identity so I can log in with certificate to become admin without problem. So far so good.

Then if I pull up NiFi UI from browser without admin certificate in nifi-user.log appears message Kerberos ticket login not supported by this NiFi (stacktrace was shortened):

I'm trying to generate something similar to this as in wavy text. How would I go about doing it? The thing I tried was simply using a for loop to incresae the amount of invisible spaces before each line. the result was linear, and although that is somewhat of what I am looking for, I'm more looking for something smoother, like in the pastebin. I thought about multiplying by 0.75 or 1.25 each time, but with data types and that you can't have a half of a character and all of that stuff in java it got really confusing really quick. Any ideas on how to do this?

This is what i've got so far, the linear examlple

I am trying to get results from a json file fetched from openstreetmap.org. When entering the url into the browser I see the json file beeing returned inside the browser. IfI try to read the json using a php script, then nothing happens. Not if I use file_get_contents, but also not if I use curl.

string formatting supports implicit strifying. However, string format specifiers don't appear to be compatible with this, only explicit str objects (regardless of using type=s). I cannot find this behavior documented anywhere without pulling up the cpython code. default ubuntu 20.04 python3.8 install. using an explicit str() call is workable but it's not very clean especially in my use case where it now liters the code.

Below is a simple example of what I'm currently working with: a websocket stream which does some asynchronous calls as part of the logic when consuming the incoming data. I'm mimicking async calls with a Promise-ified setTimeout function:

I'm trying to recursively map through an array of objects, which could have the same type of objects nested in themselves.

i.e.,

I'm new to groovy and struggling to modify (or copy) and existing xml file, compressing parts that belongs to the same ID. That is the sample source XML:

When querying my MySQL database, I use the line