Storypost | 2019.01.27

Everyones Gone to the Rapture kilroy was here

2019 has been all work and all play.

Project needs dictated that I can take a quick trip out east, so I squeezed in a stop at J's place for some video games, brew tasting, and quality time with the fam.

San Diego airport Karl Strauss broken lamp incident of 2019

The NFC championship started as I got to the airport and Patriots-Chiefs game finished as I was getting to J's place. The games were exciting enough that the dude next to me took out a light while celebrating a Goff interception.

Fire Emblem space dragon

On the flight I completed off the last chapter of Fire Emblem Fates/Revelation. The chapter was, of course, a two-parter with a multi-stage final boss. I guess my squad build was good enough, I was able vanquish Anankos without any retries.

Compared to previous endgames, this one was actually somewhat easy. My gold production engine ensured I could raise the level cap on a handful of characters, putting them well above anything that spawned in. And while grinding levels yields diminishing returns, the daily refresh of challenge levels throughout the campaign meant I could get into the endgame with topped out characters.

The endgame segments were nothing too exciting; a simple map with constantly respawning enemies that you have to fend off while plinking away at Anankos. Naturally, most skills are completely useless against the boss - he can't be insta-killed, poisoned, attribute-sealed, etc. Anankos hit hard enough to two-hit all but my tanks, so they were on damage dealing while everyone else performed crowd control. Astra - five sequential hits at partial damage - was especially clutch as it did plenty of regular damage and built up defensive shields for paired units.

The story ended with the usual "everybody's happy", but this one is super happy because kingdoms you choose between in the first two branches instead make peace with each other.

Divinity Original Sin combat bomb lava

After an uneventful landing and beltway drive, I got to J's place to start on the Divinity: Original Sin endgame that we had queued up from our previous remote session. We had actually witnessed most of the game's plot in our final few hours of play time, having neglected the giant bloodstone quest that unlocks 90% of the rooms in Homestead/End of Time.

Divinity Original Sin character respec

To our dismay, the Homestead areas we opened would have been rather useful if we had been able to access them when the designers intended (though they, of course, clearly also intended for you to be able to shoot yourself in the foot). High level vendors, respec stations, an explosion of miniature imps... all would have been very helpful throughout the playthrough. Of course, we didn't really have much difficulty with any part of the game that didn't involve or extremely obscure puzzles.

So we quickly caught up on the plot, which was somewhat disappointing after the quirky and inventive side quests sprinkled throughout the game. Two ancient generals (surprisingly reincarnated as the main characters), failed to defend an artifact and release some sort of dragon upon the world. Pretty standard fantasy fare.

Divinity Original Sin screenshot Raalzen Ax aroth

After reading that the endgame was about an hour, we fought our way through several hours of pre-bosses and puzzles to get to the mighty void dragon.

Divinity Original Sin final void dragon battle screenshot

The void dragon battle was pretty epic, much like Fire Emblem it featured an extremely tough boss and a continuous stream of minions. It was nice to have a final fight that required burning most of the items we'd saved up over the course of the game. It was not an easy fight, but in the end we prevailed...

Divinity Original Sin game over screen DOS meta weird

... on our second try. Deep into the first attempt, the dragon wailed on an NPC ally and forced an instant failure that kicked off a strange and probably-not-as-clever-as-originally-though game over screen. Windows, smh.

Beer bottle Hoptimization

Our tasting adventures took us to Rocket Frog and Crooked Run. I was pretty optimistic; both breweries had board games available and Rocket Frog even had the Pipeline Masters on. The lineups looked good - IPAs with a few other good looking porters and such. Crooked Run had a taco shop inside the tasting room with some pretty decent street tacos. On the downside, neither of us much liked any of the beers we tried. There were too many hazy brews and the IPAs tasted flat and flavorless. The stouts and porters weren't terrible but just heavy enough to not be worth more than a 4oz pour. Suffice it to say, rather than filling the growler we instead stopped at Wegmans for mix and match sixers.

Black Flag Brewery Maryland posters Star Wars Life Aquatic

The work portion of the trip was pretty much the usual - we capped a nine hour meeting at Black Flag.
Far Cry

FarCry 5 settlement liberated flag fireworks cheesy

After finishing Divinity, J and I wandered the Montana countryside, jumping ATVs and liberating the oppressed.

FarCry 5 screenshot plane hit rocket launcher pilot

We've stepped up our equipment game with the unlockables that you get throughout the main quest. The helo with rocket pods is particularly useful.

thumbnail Far Cry 5 helicopter rocket launcher thumbnail Far Cry 5 sniper scope cougar thumbnail Far Cry 5 Joseph thumbnail Far Cry 5 Joseph mushroom cloud thumbnail Far Cry 5 tricked out sniper rifle
thumbnail Far Cry 5 helicopter cliff thumbnail Far Cry 5 map right to bear arms thumbnail Far Cry 5 rpg helicopter

Like the last installment, the game's pace seems just about right. There are just enough outposts to liberate, side quests to do, and main quest segments. And with a healthy dose of unlockables and collectibles, you always feel like you're doing something worthwhile, even if it's strafing elk.

FarCry 5 helicopter landed on bear wtf

PUBG Vikendi space shuttle

The squad got its first Vikendi chicken dinner a little while back. We're still getting the occasional royale session in.
Everyone's Gone to the Rapture

Everyones Gone to the Rapture screenshot church

Since it was a free ps+ game, I downloaded Everyone's Gone to the Rapture. I thought it'd be a good one to play with Jes one a cold weeknight; a story-driven game that doesn't demand dual stick mastery. It certainly was a dialogue-driven walking simulator with some eerie qualities. But it was a bit slow/sparse to really keep our attention.
Deep Rock Galactic

Deep Rock Galactic space dwarfing glowing rocks screenshot

The lolbaters squad is doing some Deep Rock Galactic - a (still in development?) co-op space dwarfing gaming.

Basically, you drop in to a cavern and explore destructible terrain filled with hostile creatures to ultimately accomplish some sort of mining objective. Once you've finished your task, you scram to the drop pod. Stuff you pick up on the way helps with equipment and leveling.

Deep Rock Galactic screenshot sentries squad space dwarf

There are character classes with distinct combat abilities and tools that help you get around the mines.

Inevitably, an alien swarm is unleashed on you and it becomes a full-on shooter for a couple minutes.

Deep Rock Galactic flora Deep Rock Galactic minigun cave flamethrower Deep Rock Galactic Glyphid Praetorian Deep Rock Galactic refueling

CattleDecapitation's xmas Steam gift to the 'baters was Ubermosh, a simple arcadey survival shooter with great music.

You have a gun and use a sword to slice bullets. Yup.

There are a few other classes as well.
Viscera Cleanup Detail

Viscera Cleanup Detail arm incinerator

Mark's gift was basically what happens in the aftermath of an ubermosh.

I guess if people play Farming Simulator and Flight Simulator and Desert Bus, there's a niche here. For most of us, it's just work and trolling your squadmates.

Viscera Cleanup Detail incinerator Viscera Cleanup Detail scissor lift Viscera Cleanup Detail mop Viscera Cleanup Detail torso bloody bodypart

Charterstone board game final board

We finally finished Charterstone. It was a pretty amazing experience with a rather dark ending - at least, the ending we got. Though heavy minmaxing, I managed to edge Corey out by a few VPs for the victory. Hooray, I am [spoilers]!

Gloomhaven miniature Plagueherald Harold scenario traps

Gloomhaven has been on a bit of a hiatus, so we're all jonesing to get back into it. I'm making the Quartermaster class work well, I think.

In spite of all the travel and cozying up by the gaming rigs, we've gotten out a couple times. Jessica took me to David Sedaris, and there was a thing at Second Chance.

David Sedaris Naked signed book Second Chance Brewery cornhole
Renovation and redecoration

Restoration Hardware bed Bedroom fisheye Bedroom baseboard

We upgraded the bed in the master and had the bedrooms recarpeted.
Ear surgery, take two

Dog weimaraner trail hike

After draining and waiting on Kaf's ear, as it was nearly back to normal it suddenly filled up with blood again.

Dog weimaraner surgery bandages ear

So we took him for urgent surgery and sutures. Fingers crossed that it's a permanent fix.
Back at DL4J

FarCry 5 neural style transfer flag fireworks

I kind of meandered and stalled a bit after my first foray into the Java Deep Learning library DL4J. One of the main blocking issues was matrix math exceptions way down in the ND4J math library that I assumed were due to my network not being set up correctly. The stack traces were pretty intimidating and I didn't have the source loaded into my IDE. I stumbled upon the answer when trying a fresh problem - some critical portion of the code was simply not thread safe. Or so I ascertained from toggling my asynchronous GUI updater. Huh. Could have avoided a lot of headscratching.

Possibly repeating myself here, but I was experimenting with the library partially to have fun and partially to come up with a neat graphics processing tool. A few examples:
I started again with the Mona Lisa drawer (x, y -> rgb), expanding the input to an n-by-n grid that would train on an output image. The network would quickly memorize the image and produce it regardless of input, as one might expect. I then threw randomized snippets of images and noise at an n-by-n, hoping that I could train a network to be a passthrough - produce whatever image was given to it - as a baseline for making graphical mods.

While I never got close to a passthrough (more on that in a second), it was a crash corse in network configuration which I had previously been simply lifting from examples. I found that learning rate and momentum are serious business and based on input/network size. You can easily underflow your weight values and basically dead-end your training. I frequently had to adjust these values by a factor of 10 and visually check for changing/learning output. Loss function, too, has a significant impact on network behavior.

Neural network activation functions TanH ArcTan ReLU PReLU ELU

Activation functions are important and application specific. In the most general sense, they tolerate positive and negative numbers differently. I eventually went from representing my color space with [-1.0, 1.0] to [0.0, 1.0].

After many unsuccessful attempts, I found out I was aiming to create an autoencoder:

An autoencoder is often trained using one of the many variants of backpropagation (such as conjugate gradient method, steepest descent, etc.). Though these are often reasonably effective, there are fundamental problems with the use of backpropagation to train networks with many hidden layers. Once errors are backpropagated to the first few layers, they become minuscule and insignificant. This means that the network will almost always learn to reconstruct the average of all the training data. Though more advanced backpropagation methods (such as the conjugate gradient method) can solve this problem to a certain extent, they still result in a very slow learning process and poor solutions. This problem can be remedied by using initial weights that approximate the final solution. The process of finding these initial weights is often referred to as pretraining.

Aha, I was indeed recreating the average of all training data. So maybe an autoencoder implementation will give me an image recreation capability I can tweak to accomplish graphics processing.

Related - internal

Some posts from this site with similar content.


Neural fails

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Related - external

Risky click advisory: these links are produced algorithmically from a crawl of the subsurface web (and some select mainstream web). I haven't personally looked at them or checked them for quality, decency, or sanity. None of these links are promoted, sponsored, or affiliated with this site. For more information, see this post.

Growing Bonsai Networks with RNNs - Casey Primozic's Homepage

A summary of my research and experiments on growing sparse computational graphs by training small RNNs. This post describes the architecture, training process, and pruning method used to create the graphs and then examines some of the learned solutions to a variety of objectives.

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