July 21, 2006
So my GDNet+ subscription will be expiring fairly soon, and I don't think I'll renew immediately. I want to be in a position where I can acutally make consistent journal updates with at least SOME content in them.
I have done some more work on my virtual texturing project in the last couple months, …
I have done some more work on my virtual texturing project in the last couple months, …
March 12, 2006
Not much to talk about today. I've got affine texture coordinates working, and I'm definitely sure now that they'll be sufficient for my purposes. Also, I brainstormed a bit on how to manage block requests, and I've got a solution that should work fairly well. Today was a fairly unproductive week t…
March 04, 2006
So, I'm now mostly done my rewritten scanline rasterizer. There isn't much more that I can really optimize that I can see. Right now it's fairly straightforward and simple; I don't do that many tricks to speed it up. Probably the biggest trick is the one-time calculation of edge data (e.g. dx/dy/dz…
February 25, 2006
Nothing to talk about this week. I'm redoing most of my software renderer right now, including but not limited to, switching from halfspace checking to scanline checking. Next week I'll have that finished I think, so I'll share some performance numbers then. In the meantime, here are some completel…
February 18, 2006
Two parts to this: Software rasterizer update, and the rant of procedural textures.
The software rasterizing has gone well. I now have hierarchical block culling in. Basically how it works is that first for a 32x32 block it'll figure out if the block is entirely in the triangle, entirely out, or par…
The software rasterizing has gone well. I now have hierarchical block culling in. Basically how it works is that first for a 32x32 block it'll figure out if the block is entirely in the triangle, entirely out, or par…
February 11, 2006
Well, I've been working mainly on the software rasterizer that I'll need for this project, and that's going well so far. It's the first time I've ever done one, and was going in with about zero experience in that area. However, it's going very well right now. jpetrie has been a marvelous help, as h…
February 04, 2006
So, I've decided to try out full texture memory virtualization of a scene, as opposed to just the terrain (which was ending up being a lot like clipmaps, really). I figure I'll talk about it a bit, and then discuss how I'm going to go about it. Note that I will not be referring to D3D10 in this dis…
February 02, 2006
You can't believe everything that you read, but the right information is just a page away.
(I've got a loose sketch in my head how I'm going to go about my little proof-of-concept demo. This weekend, if I can get a lot of work done on it, I'll unveil what I'm working on [wink])
(I've got a loose sketch in my head how I'm going to go about my little proof-of-concept demo. This weekend, if I can get a lot of work done on it, I'll unveil what I'm working on [wink])
February 01, 2006
Well, first off, the introduction to aniso filtering that I promised Yemen. In the past graphics only had textures that were filtered with just nearest point magnification (many pixels for one texel) and minification (many texels for one pixel). For magnification, we can now simply do linear filter…
January 27, 2006
I've been doing more work/experiments on my RFBTexture experiment recently, although that's hard to do when you practically get about 2-3 hours a day to work on it. Anyways, I've mainly been spending the last week figuring out anisotropic filtering (as well as practicing the pronounciation: an-eye-…
January 19, 2006
So, really (freak)in' big textures.
Here's my idea for how to handle RFB textures:
Let's say we have a texture for terrain that is 8kx8k, split into 512x512 textures with mipmaps, plus a 16x16 mipmapped texture for the mips that the 512 ones don't get (reasoning behind this is that the 512 mips will …
Here's my idea for how to handle RFB textures:
Let's say we have a texture for terrain that is 8kx8k, split into 512x512 textures with mipmaps, plus a 16x16 mipmapped texture for the mips that the 512 ones don't get (reasoning behind this is that the 512 mips will …
January 19, 2006
So, it turns out I basically won't be able to get my hands on Vista as a D3D10 dev platform, so I'm probably going to just take a break from that stuff.
There are two graphics things on my mind though that I've been thinking of and trying to come up with solutions for: area lighting and memory virtu…
There are two graphics things on my mind though that I've been thinking of and trying to come up with solutions for: area lighting and memory virtu…
December 16, 2005
I've decided to pause my game for awhile (which is about the same as putting the brakes on a car moving at 1km/h...) due to finals and something better than finding the Holy Grail inside the Arc of the Covenant: Direct3D 10.
Since the docs were released tuesday, I've been looking them up and down, a…
Since the docs were released tuesday, I've been looking them up and down, a…
December 11, 2005
In between studying for finals I'm still working on the particle system (and now the game). The particle system doesn't handle multiple textures yet, but got a nice speedup thanks to a suggestion by Reltham to split the primitives into batches of ten thousand or something, instead of spitting out a…
December 03, 2005
Since I've started doing a bit more relevant game programming, I might as well give a quick update on this stuff.
For those who don't go to #graphicsdev, I guess I might as well fill you in on what I've been doing since my last journal entry. The majority of the time was spent making a new algorithm…
For those who don't go to #graphicsdev, I guess I might as well fill you in on what I've been doing since my last journal entry. The majority of the time was spent making a new algorithm…
August 17, 2005
Just a quickie thought: Would it be feasible to do raytracing in the pixel shader in SM3.0? Like, render a fullscreen quad and basically run a raytracing program on each pixel like one would do on the CPU?
August 15, 2005
I guess it's been awhile since I've updated this, huh...
Okay, well, life update: I've moved into an oncampus university residence for two weeks (I'm in Edmonton, on a co-op work term. Hometown is Calgary, ~300km away) to top off my term, and then it's back to Calgary. I'll finally get around to fin…
Okay, well, life update: I've moved into an oncampus university residence for two weeks (I'm in Edmonton, on a co-op work term. Hometown is Calgary, ~300km away) to top off my term, and then it's back to Calgary. I'll finally get around to fin…
August 05, 2005
(note: I have not researched at all on BSSRDFs, so pardon me if I'm reinventing the wheel to a ridiculous extent)
So, I decided to contemplate some more on translucent surfaces. One thing I've noticed early on in my education on light was how some translucent things can scatter light. For example, l…
So, I decided to contemplate some more on translucent surfaces. One thing I've noticed early on in my education on light was how some translucent things can scatter light. For example, l…
August 03, 2005
So right now in my demo I've got some fairly nice perpixel Blinn lighting going on, and some additional effects like Fresnel to modify the specular coefficient. However, as I observe the real world more and more, I've noticed the huge significance environment mapping can have. I recently decided to…
August 02, 2005
Greetings. I've just finished a ~85% complete verison of my skewbe mapping paper, which includes most of the content, but the writing is still fairly poor. I thought that before making a big release I'd post it here first to get thoughts from you guys on some things in it (aside from improving the …
August 01, 2005
Hey, I figured I'd throw in an update regarding my skewbe map paper.
Doles helped me get the various demo images I needed for quality comparisons, so I'm grateful for that, and that's done. I've also done the menial tasks regarding naming and such. I plan on having all of the content done tomorrow, …
Doles helped me get the various demo images I needed for quality comparisons, so I'm grateful for that, and that's done. I've also done the menial tasks regarding naming and such. I plan on having all of the content done tomorrow, …
July 28, 2005
Just got GDNet+, so here's my first journal entry. I'll mainly be posting in here various graphics-related thoughts. I've done very little research on them, mainly just buzzwords, so if I reinvent the wheel a couple times, just let me know. Anyways, right now I'm mainly researching/developing reali…
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