What are Shaders?
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Re: What are Shaders?
Posted by xaveri on Sat Feb 19th at 11:34am 2005


I've heard the term "Shader" many times and I havent put too many attention to it. But on the latest Steam Update, Valve mentions the capacity for us to create our own shaders. So if anyone can answer me, What are Shaders?



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Re: What are Shaders?
Posted by RaPtoR on Sat Feb 19th at 12:11pm 2005


AHHHRRRGG!! I wrote a realy good and long reply to this post!!! AND THEN SOURCE SDK UPDATED, LOST GAMEINFO.TXT AND OPENED A HELP PAGE HERE ABOUT IT AND MY REPLY WHERE LOST!!!!!!! GHAAAARRRRR!!!!!!!!
[addsig]




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Re: What are Shaders?
Posted by brett5010 on Sat Feb 19th at 12:26pm 2005


ha.a.ahah.hah




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Re: What are Shaders?
Posted by Orpheus on Sat Feb 19th at 12:47pm 2005


brett, you are not being helpful.. most of us have had this happen a few times, and it loses its uniqueness after the first 1/2 dozen or so. [addsig]



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Re: What are Shaders?
Posted by Dred_furst on Sat Feb 19th at 1:10pm 2005


Shaders are unique ways of representing textures?

So proper cellshade can be done?
[addsig]




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Re: What are Shaders?
Posted by Forceflow on Sat Feb 19th at 1:49pm 2005


Take a look at it this way: you put textures on your brushes, but want to add an effect. The floor has to reflect certain things, or it has to look wet and slippery ... that's where shaders come in. They add certain effects to textures.


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A procedural plug-in, loaded into the mental ray rendering software in the form of a shader library, that defines the surfaces of objects in a certain way. Originally, shaders computed only surface shading, but the term stuck as new types of shaders were invented that had nothing to do with shading. Shaders are grouped as the following types: contour, displacement, environment, lens, light, light photon, output, photon, shadow, surface, texture, volume, and volume photon.

? quote:
A shader defines the final surface properties of an object. For example, a shader can define the color, reflectivity, and transluscency of a surface.
[addsig]




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Re: What are Shaders?
Posted by parakeet on Sat Feb 19th at 2:19pm 2005


oooh evamod will have a field day with that = p propper cell shaders wow ^_^ ! sounds like fun !
[addsig]




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Re: What are Shaders?
Posted by LAzerMANiac on Sun Feb 20th at 12:46am 2005


are they still working on it?
[addsig]




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Re: What are Shaders?
Posted by xaveri on Sun Feb 20th at 11:03am 2005


I get it. It's like when you have a texture for clear glass and one for darkened glass, both are trnaslucent but the dark glass reflects more than the clear one. In the past, on the Quake engine they used to simulate the effect of water, sludge and lava using movement on the texture.

Thanks for the info Forceflow.





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Re: What are Shaders?
Posted by wil5on on Mon Feb 21st at 4:43am 2005


Source SDK FAQ says shaders define the equations used to work out the colour of each pixel. So, this is a coding thing... but that allows for some cool modding capabilities, like cel shading, and... other cool stuff i cant think of at the moment. [addsig]




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