May 25, 2006
After finding several bugs in my Parallax Occlusion Mapping effect file, I think I finally have it working properly now. It actually took much longer than I thought it would to get all of the theory figured out for exactly how it works and all, but I have a good handle on it now.
It doesn't look ve…
It doesn't look ve…
May 20, 2006
Holy smokes, did I find a crazy error a couple of days ago.
I was trying to get my parallax occlusion mapping shader to run a dynamically determined number of height-map samples to speed up the overall effect. Basically I based the number of samples on dot(N,V), so that the more straight on the vie…
I was trying to get my parallax occlusion mapping shader to run a dynamically determined number of height-map samples to speed up the overall effect. Basically I based the number of samples on dot(N,V), so that the more straight on the vie…
May 16, 2006
I have been experimenting with Parallax Occlusion Mapping over the last couple of days. It is a very interesting algorithm for reducing geometry processing by encoding the surface information into a texture and the details are figured out in the pixel shader.
This of course reduces vertex cost and …
This of course reduces vertex cost and …
May 10, 2006
I have been really (too!) busy lately, but have found some time recently to work on Heiroglyph. It never ceases to amaze me how good it can feel to make progress on your pet projects...
In a general sense, Heiroglyph was originally developed as a 'graphics first' and 'everything else second' kind o…
In a general sense, Heiroglyph was originally developed as a 'graphics first' and 'everything else second' kind o…
April 17, 2006
My article has finally been uploaded to gamedev.net! It has been a long time coming, but it feels really good to see my name on the home page. Hopefully people will get some good use out of the article.
If you have any comments on the article I'd be very interested in hearing them!
If you have any comments on the article I'd be very interested in hearing them!
March 17, 2006
I submitted an article on Dual Paraboloid Mapping nearly 7 weeks ago, and haven't gotten a decent response on where it is at in the publishing process. So I decided to put it up here to at least let those that are interested check it out. You can get them here:
Article
Effect file for generating pa…
Article
Effect file for generating pa…
February 16, 2006
Maybe someone out there can clue me in on the article submission process. I submitted an article 4 weeks ago tomorrow. Immediately after submitting it, I got an automated response saying that my entry was received and a link to a fogbugz entry for my article.
After two weeks, I sent an email to th…
After two weeks, I sent an email to th…
January 03, 2006
So after tweaking my gooch shader I started thinking about how to make the contrast even better and possibly add a little bit of flair to the basic effect.
The normal gooch shading essentially interpolates from the warm to the cool colors based on the dot product of the model normal and the light …
The normal gooch shading essentially interpolates from the warm to the cool colors based on the dot product of the model normal and the light …
January 02, 2006
Next up for our little Stanford Bunny is some non-photorealistic rendering. From the first time that I saw this paper I have been interested in different forms of NPR. So as a small tribute, the next effect that I am implementing will be based on that paper by Bruce and Amy Gooch.
The 'big' idea o…
The 'big' idea o…
December 30, 2005
I guess to be complete I should start out with a basic ambient diffuse and specular effect. It's not the most exciting, but there is still value in going back over older material to see if you gain any new insights into the various techniques. So here we go...
The effect that I am implementing will…
The effect that I am implementing will…
December 26, 2005
The set of data that is available in my bunny.ply data is essentially just a list of vertices followed by a list of faces that index into the list of vertices. So, the first thing I needed to do to develop some of the effects that I want is to generate a set of per vertex normals for the model.
Alt…
Alt…
December 23, 2005
After spending quite a bit of time working on adding dynamic lighting to Lunar Rift (it has been at least a month of testing and tweaking on my pixel shader bound fx5200), I have decided to take a small excursion from it altogether. Actually, since I started working on my engine about 2+ years ago…
December 18, 2005
Implementing some small utilities for testing my rendering pipeline was actually easier than I thought it would be. All along I have had some basic statistics built into the renderer, like frames per second, triangles per frame, and draw primitive calls per frame.
These three pieces of data are use…
These three pieces of data are use…
December 15, 2005
I am a pretty big nVidia fan. I actually specifically bought a laptop with an nVidia GPU to support the cause (plus I bought some stock in them[smile]).
But wouldn't you know it, Dell doesn't update their video drivers very often and I have been trying to use nVPerfHud with my GeForce fx go5200. I…
But wouldn't you know it, Dell doesn't update their video drivers very often and I have been trying to use nVPerfHud with my GeForce fx go5200. I…
December 09, 2005
Here is a brief overview of the class hierarchy for the object system in my engine. The majority of the design is taken from Dave Eberly's Wild Magic engine, which you can check out here.
However, there are certain things which I do differently than Dave for a number of reasons. I will be explai…
However, there are certain things which I do differently than Dave for a number of reasons. I will be explai…
December 08, 2005
The day has finally come - I am writing my first journal entry. I have been around gamedev for around 2 years, lurking in the shadows, asking questions, and slowly building my engine. I finally think that the engine is far enough along that I may be able to share some of what I have learned, so t…
Advertisement
Popular Blogs
Advertisement