September proved to be a rather busy month, at work and home. It isn’t unusual for me, and I usually find time to throw a render or program together. As this month closed, I found myself in need of a program to share and not a lot of time. While cleaning up a few things on my laptop, I found this little test program I wrote last month that fit the need.
Back in the day I learned to program on school PDP-11 with a 6 teletypes and a CRT attached. I was still in computer club at the time, thinking the 8" floppies were pretty cool. To my despair, the poor thing died that Summer and, when I took my programming class, it was on an Atari 800. But the programs I wrote the previous year stuck with me. Printer Car harkens back to those days.
A retro blast from the past! The four chip Sinclair ZX81 was the first computer I owned and I thought it would be fun to build a LEGO version of it. The 2K of memory (in my US version) was pretty limited. An essential accessory was the 16K RAM which allowed you to fully use the screen and enjoy some fun, if blocky, games.
I haven’t added a new topic in awhile, but I ran into a bit of a problem lately. As an AFOL (Adult Fan of LEGO), I recently got back into building with real LEGO bricks. In doing so, I decided to start taking pictures of some of the sets of been building. Not content with building official sets, I started to build MOCs (My Own Creations) from both myself and others. I needed a place to share.
After finishing Tree Fall, I had an idea to turn it into a winter scene. I thought it would be easy to swap out a few parts with white ones, but my wife disagreed. She recommended some changes and, after some trial and error, I created Tree Winter!
Lately, I’ve been reflecting on my programming journey. It is hard to believe that it has been over nine years since I started writing my monthly articles. I’m nearing the end of my printouts, and thought I’d write about my ZX81 Dice Game.
Awhile back, I had an idea on a run for a little LEGO vignette. My vision included a small tree on a hill. Most often, my mind refocuses on my workout the vision fades. This time, the idea stuck and became reality as Tree Fall.
Having a healthy imagination and perchance for sci-fi, Spaceship is a bit of both. I assume I conjured up the idea as part of some playtime activity. Written in 1983, it was one of my earlier programs and lacked graphics. Yet, it was still a bit of fun.
I’ve been having a lot of fun in May, rendering images and trying out some new techniques when I can. I’ve also been trying to learn Blender, work on decorations for old models, and try out new sites. Although still learning, here are four of the renders I made during the middle of the month.
I have some sort of fascination with code breaking. A byproduct of all the spy movies I watched as a kid. A friend of my would make spy cases with Lego’s, and I had to build my own of course. I had a wallet with home made credentials and so on. Code Searcher is a bit of a homage to those golden age gadgets of the 60s and 70s.
As May kicked off, I got to work finishing the decorations for set 6444 Outback Airstrip. Because I had a few different decorations to finish, I got distracted. That distraction was with a much older LEGO Airplane. Both renders gave me a chance to revisit motion blur in Blender.
Shifting from POV-Ray back to Blender, I'm playing around with Mecabricks again. Taking a break from blogging about images, I decided to shift my focus. During the last week of April, I decided to clean up models and make new decorations. The journey weaved a bit, starting with an old model, but ending with something new. Below are the results of that virtual trip.
When I was a child, I remember going over to a friends house and playing Wizardry on his Apple. Leaving his house, I was super excited about the game I saw. Although my lowly ZX81 was no match, I had visions of creating my own games like it. My attempt, although a test, could have been so much more.
Following my Blender renders for 588, I started work on rendering the POV-Ray versions. Not quite the original versions, these renders use radiosity with an updated environment. Besides being a larger render, I turned on some of the features I usually don’t. The images came out pretty good, even if I’m always looking to improve them.
Last week, I shared my POV-Ray version of LEGO 590. Now, it seemed like a good time to build a Blender version. Starting in Mecabricks, I was fortunate to find that awesomo had recently built the model. Although missing a few parts, it gave me a shortcut into building a realistic render of the box art. Starting as a simple idea, my journey towards the final image wouldn’t be a straight one.
Not quite done trying things out, I spent time the futzing around with Blender the other night. Looking around for LEGO materials, I ran across a Blender importer for LDraw files. I didn’t know such a thing existed. Intrigued, it resulted in a night of experimentation and the results look pretty good.
On Monday, I decided to hack around with Blender a bit. I’d been playing with POV-Ray and looking for a way to convert my LEGO scenes to Blender. I was unable to export SDL to a mesh. Loading up LeoCad, I discovered that I could export my models and import them into Blender. Before I knew it, I’d spent the night futzing around with shaders and modifies. The results weren’t half bad.
Ah, can’t you smell sweet nostalgia of this LEGO set from 1979? One of my larger town sets as a child, 588 Police Headquarters was also one of the first ones I built in POV-Ray. Looking for something else, I ended decided to check if 588 was in Mecabricks. To my surprise, it wasn’t. This gave me two opportunities. The first to build the set again, and the second was to render it with Blender.
When I saw that the featured set of the day on Brickset was Engine Company No. 9, I was excited. LEGO set 590 is one of two large city sets I owned as a child, the other being the 588 Police Headquarters. Even better, I had built the set in POV-Ray some years back. Realizing I’d never published it, I decided it was time to right that wrong.
I can’t believe how many LEGO sets I built and rendered using POV-Ray. Over the years, starting in 1996, I’ve built 125 different models—yes I counted them. To note, that doesn’t include the variations or alternate scenes within each set. Around the same time, I started to share my models online. To my surprise, many of my models were never shared! It’s time for me to fix that!
Sometimes inspiration arrives from odd places. For years, I have subscribed to BrinkSet’s newsfeed which serves up a random set of the day. A recent airplane set got me interested in playing with Mecabricks again. Plus Scrubs had released an update for his Advanced Blender Script. How exciting is it to flip through your feeds and end the day creating something. Even better, it sparked more renders that allowed me to escape pandemic news, if only for a bit.
A bit cliche by 1985, but I was obviously still playing Frogger and the clones it spawned. With all its dodging and moving, the game is classic for good reason. Even in modern times, it has spawned the likes of Crossy Road and other in spirt games. My own attempt, called Sea Cross, finds you trying to get your family safely across the water and home. I doubt you’ll be able to.
The ZX81’s graphics be a lot of fun to program. Although I wasn’t a big fan of the PLOT command, I do have some examples of its use. My taken on the TS logo for the rock band Twisted Sister is one one example. Like a primitive screen saver, it can be fun to watch.
Okay, I’ll admit that I was a Star Trek junky. As a kid, I remember eagerly waiting each week to watch reruns of the original series with my family. When 1983 rolled around, I’d watched both of the original movies and owned the comic books that bridged the two. As such, creating a Star Trek game on my ZX81 should come as no surprise.
Over the weekend, Mecabricks released an overhaul of its parts system. As noted in his announcement, it culminates over six months of research and development. Not wanting to lose the opportunity, I took the time to model and render a couple of images using the new system. So far, I’m enjoying the changes.