I am DVDKOURIL. This is my blog.

A trip to the zoo

I’m writing a diary on my computer that comes in real handy when I write things for the blog. It usually seems that there’s not much happened and I have nothing to write about. Then I look at the diary and see all kinds of stuff I did, or things I thought about…and bang, there’s your blogpost.

Like this week, we had a jam session with colleagues. Apparently, a lot of researchers play some musical instrument (myself included). So we got together and made some noise. We also drank which didn’t go well with the playing that much.

I experienced a little bit of crisis this week too. I felt like I didn’t really get a brake ever since I finished school (and the sprint to that was taxing by itself), and even though I was working on a lot of things, I didn’t really have much to show for it. That was my impression at least. Of course that’s not true, but in the moment it was an overwhelming feeling. I’m really looking forward for our vacation in Greece in 22 days.

I like being disconnected. That’s when I get into the right headspace and think about important things, ask important questions, and figure out what’s important to me. This get’s easily lost in the day-to-day, when the stress and emotions are the primary drivers.

I got a bit of taste of that this weekend when we visited my parents in Czech Republic. We went to the zoo and just chilled. Of course the two days were enough for me to want to go back and work on things. But I take it as a good thing.

Heatwave 2: The Sweating Continues

The extreme temperatures continued this week.

We had a little bit of crisis in our relationship on Wednesday. I’m not gonna go into detail but we had to talk about certain things and figure out how to solve them if we would continue being together.

Luckily everything ended up well.

I took Thursday and Friday off, to spend some time with Gabi and also chill out for a bit. Our vacation is still one month away.

We went for a swim in Alte Donau and for a walk.

I really need to spend more time outside of the apartment. When I have nothing to do I’m just easily bored. There’s only so much work I can do in a day and when I have all the free time I can I don’t use it very well.

Being outside makes everything feel better. I don’t know if I can describe the feeling…it’s like you are a part of it, part of the city, part of the world. You are actually doing shit instead of just looking out of window and trying to figure out what to do.

Also: I cooked this deliciousness:

In the middle of a hot summer in Vienna

It’s consistently hot in Central Europe. I definitely like it better than winter (I hate being cold) but sometimes it’s annoying when you sweat through a t-shirt just walking few steps to a store. Our apartment doesn’t have air conditioning—it’s not very common in Czech Republic and Austria—so we are experiencing the heat wave pretty intensively. In the office we do have AC, but it’s 3 of us there and it’s hard to keep the most comfortable temperature for everyone. It makes me wish I had an office for myself a little bit.

Most of the people from work are on vacations. On Wednesday I had to go to Brno to get my Master’s and Bachelor’s diplomas translations. Ticket machine broke while printing my public transport tickets, then the bus back to Vienna had more than an hour delay. But I got the translations so I would say it was a success.

On Thursday I finally submitted the PhD admission (that what I needed the diploma translations for). I almost left the study department because there’s been such a long line of people waiting. But fortunately it moved pretty fast and I submitted everything successfully. Now I have to wait few weeks for the answer if I can do the PhD at TU Wien.

On Saturday we went on a small bike trip/hike. There’s a hill with a castle, or a church or something, that you can see from the city. I’ve wanted to go there since I got here and we finally did that. The route we took was pretty steep but the view from the top was worth it.
Looks like our vacation plans are forming! Gabi has been going through flights and booking.com and she’s basically the one planning the whole thing. She found some quite cheap plane tickets to Kalamata and we bought them. Just like the last year, we will pick the accommodation later, rent a car, and just go on our own.

Talking about vacation makes me realize that it’s almost a year since I started writing the blog. That’s cool. And although I’m not breaking any view records, I have no plan to stop. Looking back, seeing the photos, and reading about the things that we’ve done, or what I’ve been thinking, is just too much fun!

The week when I was sick

I was sick this week. I wrote about that already. It means however that there’s not much to say about my week other than that. I stayed home and I slept a lot.

The weather has been extremely hot, 35 °C at some point. It’s hard to say if it was good or bad that I didn’t go anywhere and was at home the whole days. I guess it was a good thing. Although the amount of sweating I did…

I remember last year when I was sick like this. It was very similar—also in summer (right before our vacation in fact) and I was also hit so hard that I could barely move. And the same as last year, I didn’t drink any coffee and I’m thinking about continuing with that. I haven’t had any coffee since Monday and I kinda like it. But I have to say that being at home makes it very easy to have a nap after lunch (instead of the cup of coffee).

The only thing about drinking coffee that I don’t like is that I don’t want to be dependent on something so much. I want to be able to focus and work whenever I want, without the need to get some caffeine before I dive into something (that’s a state of mind that I’ve been gravitating towards lately). I guess I’ll try to not drink it for a while and see how long I can do it.


On Friday we went to Donauinselfest. It’s a free music festival that takes place on the island in Vienna. We wanted to see Cro. We did and it was awesome! I really really liked it. Although being sober at this type of an event is not that much fun.

I’ve got to say that I’m very much looking forward to going back to my normal functioning routine.

How not to look for bugs in your code

In the project at work I basically have data that I’m rendering with a very sophisticated rendering pipeline. I was not getting exactly correct results so this week I had to look into that. From my point of view, there were two parts where things could go wrong: the data loading or the sophisticated, complex, error-prone rendering routine. I’ve spent two days going through every single part of the rendering, making sure that everything does exactly what I need it to. Of course everything was fine. The problem was in a code which loads the data from a text file. At some point I thought that this might be the problem but I dismissed it because it was “too much work” to debug.

It was just a gentle reminder of how much I still have to learn. Sometimes I get really hyped up and I’m excited to deliver things. But then I get stuck for few days on one thing and I’m reminded how hard software development actually is. It kinda makes me appreciate higher-level programming languages and other people’s libraries.

I was at my colleague’s “proficiency evaluation” this Friday. It’s a new kind of exam at TU Wien for PhD students. You are supposed to do it some where in the middle of your PhD and basically you show what you’ve already done and what’s your plan for the rest of the PhD. He was the first one to do it in the Vis Group and even though he passed, it wasn’t 100%. I took a lot of notes and I’m going to make sure that I have a better plan for my PhD.

This week were also notifications for IEEE Vis 2017 conference and quite a few papers got through! The one that I was participating on too! That’s good news because more people are going to go to Phoenix this autumn.