a computer program that runs on graphics hardware and provides a high degree of control over how scenes are rendered
16
votes
11answers
3k views
What are some good resources for learning HLSL?
The last time I tried learning HLSL, I made a few shaders and mostly understood what I was doing, but I still felt like I was stumbling in the dark. Most of what I learned I got from various blog ...
12
votes
6answers
2k views
Modern Shader Book?
I'm interested in learning about Shaders: What are they, when/for what would I use them, and how to use them. (Specifically I'm interested in Water and Bloom effects, but I know close to 0 about ...
14
votes
1answer
2k views
The practical cost of swapping effects
I use XNA for my projects and on those forums I sometimes see references to the fact that swapping an effect for a mesh has a relatively high cost, which surprises me as I thought to swap an effect ...
1
vote
1answer
506 views
2d game view camera zoom, rotation & offset using 'Filter' / 'Shader' processing?
I wish to add the ability to zoom-in, zoom-out, rotate and move the view in a top-down view over a collection of points and lines in a large 2d map. I split the map into a grid so I only need to ...
35
votes
1answer
2k views
How can I reduce aliasing in my outline glow effect?
I'm trying to replicate the glowing outline effect in the Left 4 Dead game. The effect causes an objects outline to glow, even when the object is occluded. Here is a screenshot of the effect:
I'm ...
16
votes
4answers
8k views
Using multiple shaders
I'm currently studying opengl shaders but I can't figure out something: how to apply different shaders to the objects, for example, a teapot rendered using toon shader and another one in the same ...
18
votes
3answers
4k views
For voxel rendering, what is more efficient: pre-made VBO or a geometry shader?
Given a fairly static voxel array, what is more efficient: using the CPU to pre-generate a VBO to render the voxel faces (ignoring more advanced forms of rendering like marching cubes for now) or ...
12
votes
2answers
11k views
OpenGL ES 2.0: Setting up 2D Projection
This article describes in general, how to draw sharp OpenGL 2D graphics, using fixed function pipeline.
http://basic4gl.wikispaces.com/2D+Drawing+in+OpenGL
Because OpenGL ES 2.0 has some ES 1.x ...
7
votes
5answers
1k views
What rendering techniques would I use to draw a drop shadow effect for cards in a card game?
What type of shading algorithm might be used to create shadows like these?
the one I'm making is similar but it is all done with a 2D drawing API powered by OpenGL so there is no Z coordinate.
In ...
7
votes
2answers
2k views
GLSL Shader Editors for Linux
Are there any good IDE's for linux that lets us edit GLSL shaders and visualize their effect?
Note : Shader Designer By Typhoon Labs is a good option but I am looking for alternatives as this ...
10
votes
2answers
2k views
Efficient skeletal animation
I am looking at adopting a skeletal animation format (as prompted here) for an RTS game. The individual representation of each model on-screen will be small but there will be lots of them!
In ...
8
votes
4answers
1k views
Fixed-Function vs Shaders: Which for beginner?
I'm currently going to college for computer science. Although I do plan on utilizing an existing engine at some point to create a small game, my aim right now is towards learning the fundamentals: ...
7
votes
4answers
1k views
glsl demo suggestions?
In a lot of places I interviewed recently, I have been asked many a times if I have worked with shaders. Even though, I have read and understand the pipeline, the answer to that question has been no. ...
11
votes
4answers
691 views
Is there any Shaders Directory? [closed]
There are many tutorials to learn GLSL, Cg, HLSL... with classical samples as bump mapping, toon-shading...
But is there a shaders directory?
a website where i can share my shaders
search shader by ...
6
votes
2answers
596 views
Rendering collections of light sources
I have a small test environment where small point lights are scattered. Players should able to collect them.
The collectible lights are rendered using a simple billboard technique where two triangles ...
