Piko3D

Hi Peeps!

We’re back at it! It’s not that we haven’t been working on anything. Its just that we haven’t posted about it 🙂
Time to make up for it! We’ve created another video about some work Micron has been doing on Inverse Kinematics. It’s not completely done yet, but it’s a nice bit of progress to show you.

This video shows how our character tries to reach for the red cube while observing the limits of his left arm, and the joints-limits in his wrists and elbows.

We’ll try to be a bit more active over here! We already have another video planned 😉
Hope you like the video!

Regards,
Wracky

Hey everyone!

Time for another update!

I’ve implemented spotlights, and optimized the light rendering a bit. Point- and spotlights now have proper falloff, and can be animated.
We’ve put a video together for thisone, showing you the state of our renderer up until now.
It is possible to set the “shininess” for separate object, so you might notice our little spaceship to be a bit more shiny than the rest
of the scene.

This is all just simple test models and geometry I had laying around. Perhaps for our next video, we’ll have some more eye candy models,
and I hope proper textures, to show you. 😉
Next up: Shadows and Transparencies!

Until next time!
Wracky.

P.S. Oh yeah, and we’re all kinda hooked on minecraft.. so progress is slow atm 😛

Hey everyone!

Here’s another progress report!
Got some basic shaders to work! Actually the shaders weren’t that much work, But Piko3D now has a proper resource management system around them too!
I’m currently working on an OpenGL renderer, but if we ever build a DirectX one too, it should be possible to switch between OpenGL and DirectX in runtime!

Anywayz, next up for me is testing, and pushing parameters to the shaders. I’m currently working in OpenGL 3 which allows me to phase out static functions gradually. This means that I can set up a static function pipeline, and than swap out the shader pipeline bit by bit, which makes testing a breeze 🙂 When everything is done, I’ll switch to OpenGL 4.2 entirely.

The little video you see here is basically a fragment shader “Hello World” that was made a bit fancier 😉 It renders BRICKS!

Anywayz, Talk to you later!

Wracky.

Hey Everyone!

Seriva, Micron, ParaMike and I got together this friday/saturday for a little Piko3D development LAN! We worked together on various subsystems and made good progress! Micron started on support for bone animation and ragdolls, Seriva did some more prep-work for the OpenGL 3.x renderer and ParaMike and me worked on some minor fixes and a cool scene graph video!

I actually spend some time in blender again and created a little space ship to use in our tests and demos. We call him pete, and you can see a whole bunch of him flying by in the video as our dynamic octree tries to keep up 😉 The video is devided in two parts. The top part shows you the action, while the bottom part shows the scene graph and objects as they move by 🙂

Piko3D uses space partitioning (in this case an Octree) to be able to quickly determine different things, like what objects are in view right now, and which objects are getting so close together that physics should start worrying about collisions!

The Octree you see in the video is fully dynamic. There is no need to tell the system ANYTHING about how many objects there are in the world, how big they are and how they move around. Each node in the octree is autonomous and together they determine where a new root, new nodes or leaves need to be created, and who gets to be the root! This means that the entire octree can move around as it is needed. This is demonstrated in the video which shows a couple of hundred of space ships all moving right at the same time. Note that only the nodes that contain objects are drawn in the video, to keep things clear 😉

Till next time!

Regards, Wracky.

Hey everone!

Here it is. I’ve been adding support for ODE joints and motors to Piko3D. Joints come in many types, and can be used to create hinges, balljoints, universal joints, pistons, sliders etc. ODE gives us the option to add motors to joints. which can be used to make things move.

I’ve made a little video again that shows a small car driving through a set of doors and crashing into a wall. Took me some time to set it all up so I hope you like it 😉 enjoy!

Regards,
Wracky.

Update: Click here for the alternate version

Very happy to tell you that Paramike has been working hard on Piko3D’s physics implementation these days! The initial ODE implementation is being cleaned up and extended.

Now it’s possible to do time scaling. This means that time can be scaled in any world, which causes it to seem like it’s running in high speed, or in slow motion, and everything will continue to be simulated as normal. Physics frames are interpolated to keep them consistent and smooth even in slow motion!

Ofcourse, credit where credit is due, the idea came from Glenn Fiedler, see http://gafferongames.com/game-physics/fix-your-timestep/.

Here’s a new video showing some “bullet time”-like action in Piko3D. Still with boxes for now 😉
Be sure to check out the Piko3DEngine youtube channel here.

Hope you enjoy this little video 🙂

Regards,

Wracky