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Improvements for 2.32

Version 2.32 will feature some internal improvements that ensures your games run their best when conditions get demanding. I've totally rewritten the vegetation rendering routines with a highly specialized quad tree algorithm. There's a lot more to it than that, and I could write ten pages about the technique, but the bottom line is its fast and dynamic. Rendering with many vegetation layers is much faster, and since the visibility determination routine is so optimized, the engine can perform
Josh

Josh

14

Best classic start menu for Windows 7

If you prefer the classic start menu like I do, there are several solutions available to get the classic start menu in Windows 7. My favorite is Classic Shell.   Classic Start Menu is a clone of the original start menu, which you can find in all versions of Windows from 95 to Vista. It has a variety of advanced features: Drag and drop to let you organize your applications Options to show Favorites, expand Control Panel, etc Shows recently used documents. The number of documents t
Josh

Josh

6

GEForce 470 and 480 specs released

480 stream processors on a single card. http://blogs.zdnet.com/gadgetreviews/?p=13422 http://www.hexus.net/content/item.php?item=23088   Thanks to CarlB of FoxConn for tipping me off on this.
Josh

Josh

3

Vegetation nation

I got my hands on the GDC showcase scene by Michael Betke, and it's much more beautiful than I thought. I used this scene to rewrite and test the vegetation rendering code. Collision isn't working yet, but it's built into the routine. The results speak for themselves.   Fortunately, Pure3D is soon offering a set of game-ready vegetation models, so you can create gorgeous landscapes like this.
Josh

Josh

14

GDC wrap up

I skipped the GDC for a couple of years, because I just wanted to focus on developing our technology. This was my first year back since our engine came to be. I was surprised how many people were familiar with our engine, and I got to talk to a few users (who probably aren't active on the forum). I also got to chat briefly with Tom Spilman, David Helgason, and Mike Wuetherick. It's really fun to see what everyone is up to, and how far they have come since a few years ago.   We met new frie
Josh

Josh

13

Fresh Blood

Dave Lee has joined the Leadwerks team. His job is to create a AAA game environment in Leadwerks Engine. Check out his work here.   (Influences of Crysis and S.T.A.L.K.E.R., how could I not hire him? )   Simon Benge, the lead artist from FPS Creator X, is also completing some animations for us.
Josh

Josh

10

Siggraph Contest

This might be worth submitting a demo to: http://www.siggraph.org/s2010/for_submitters/live_real-time_demos
Josh

Josh

4

2-17-2010

I dabbled in a lot of little things recently, like GUI code and networking, just to make sure things would work the way I want in the long run. The lighting optimizations weren't planned to come out yet, but were moved to the front due to one user who is finishing up a commercial game. I've also been helping Pure3D a little bit, but I can't say anything about that right now. Of course, our website is still in progress, and that will hopefully come together by the end of the month.   We'll h
Josh

Josh

7

Screen-space directional occlusion

Screen-space directional occlusion (SSDO) is the next logical step after simple screen-space ambient occlusion. This routine uses a raytracing approach to approximate global illumination. You can get my shader here.  
Josh

Josh

11

lgui screenshot

I got selection and rendering order working correctly, which is really the problem I wanted to solve with this. Here's a screenshot of the work in progress:  
Josh

Josh

9

lgui

I've never considered myself a fan of writing GUI code, but now that I have a small job I need to get it done for, I'm actually having a lot of fun with it. I've been tinkering around with Lua GUI code for two days, and I came up with a really neat system after lots of trial and error.   Controls A "control" is the name for a button, label, or other widget. A control is a Lua table. The programmer creates the controls they want and then inputs mouse coordinates and the left mouse butt
Josh

Josh

6

More lighting improvements

In Leadwerks Engine 2.3, two rendering paths are used for point lights. One uses a depth cubemap (for shader model 4 hardware). The SM3 fallback uses an unwrapped cubemap on a flat texture. On SM4 hardware, a depth cubemap was used because it allowed a point light to be rendered in one pass. However, when implementing my double-buffered technique for point lights, some problems arose. As a result, I changed the renderer to draw point lights as a series of six pyramidal volumes. This is how
Josh

Josh

5

Double-buffered shadow maps

I got my idea working with spot lights! You can simply use a shadow mode of 2 to indicate an object or light should be considered "static". A light that has the static mode set will use two shadow maps; one for static objects and one for dynamic objects. In the image below, the walls and room are static, and the oildrum has the regular dynamic shadow mode set. As you can see, redrawing the shadow only requires 650 triangles. Without this feature, the whole room and everything in it would ha
Josh

Josh

21

Lighting optimizations in version 2.31

I got the volume intersection tests working, and it won't be hard to extend this to make trigger and fluid volumes. The image below shows a point light divided up into six volumes. Each pyramidal volume represents the camera frustum of one face of the shadow cubemap. In version 2.3 and earlier, whenever an object moves within the spherical volume of the point light, the shadow is considered invalidated, and all six faces of the shadowmap are redrawn. This is why point lights are so expensive
Josh

Josh

6

OnLive Lives?

When OnLive was first announced, I thought it couldn't ever work, because of latency issues. After my recent networking work, I think it might actually be feasible. We had fast enough response times that we could play lagless games with server-controlled physics, which is similar to the way OnLive works. A lot of our tests were performed with intercontinental connections, and of course those will have significant latency. We found that when playing within 1000 miles of the server latency wa
Josh

Josh

6

Design Problem

I finished the collision editor, and now came across a pretty significant design issue. The approach the main editor has always taken is that by the time assets get into it, they are finished and ready for usage. Now I am making it so the model editor can change the structure of a model, save it, and have the main editor reload all instances of it. However, the Lua class scripts cause some problems with this. If I load a model with it's script enabled, the script might delete limbs fromt he
Josh

Josh

4

January 25, 2010

The networking code is pretty much done, but I don't think it's quite ready to release. We're redesigning the site to integrate the forum and community features together with the whole site, and an official documentation section is being created. In the meantime, I am going to start the model editor. This will be an app to replace the "Model Viewer" which will allow viewing and resaving of .gmf files. It will also include some editing features so you can adjust some of your meshes that might
Josh

Josh

7

Apple Adopting OpenGL3

This is great news. I was a bit worried about the state of OpenGL on the Mac, since they presently only support version 2.1. With OpenGL3 support, we can have a uniform graphics API on Macintosh, Linux, Windows XP, Windows Vista, and Windows 7. http://www.theinquirer.net/inquirer/news/1585830/apple-slowly-opengl
Josh

Josh

2

Next up...

There sure is a lot to do around here!   -Character animation example. I want to get the soldier model up and running with basic animations so everyone can use it. -Network improvements. I want to automate entity movement and some other features. -Scene graph improvements and vegetation collision. -Website and forum integration. -Revamping some of the tutorials.   Watch the character movement in this video. I want to set up something simple like that so we can run around and have fun:
Josh

Josh

7

Scenegraph Stuff

Discussing scene graphs in a game development or programming forum can be difficult, because I feel many people are very short-sighted about all the exceptions and complications that can arise in a flexible environment. In fact, there are many situations that will make rendering with a scene graph much slower than without. Many programmers have a tendency to ignore anticipated problems and assume it will work itself out somehow. It's also very hard to predict how bottlenecks will form and what "
Josh

Josh

4

Blog Bug Fixed

This should be working now. Looks like Y2K struck ten years late.
Josh

Josh

3
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