A program running on one of the last stages of the pipeline in a graphics card. Geometry information (usually vertex information) from the earlier stages of the pipeline goes through the rasterizer stage and becomes input to the pixel shader which then generates a single color value as output - the ...
2
votes
1answer
246 views
How to access the nth element in a 2d texture from a pixel shader in XNA
How can I access the nth element in a texture2d from a pixel shader? For example if I wanted to get the 5th vector4 from 10 x 10 texture2d
1
vote
1answer
107 views
Pixel Shader - apply a mask (XNA)
I'd like to apply a simple few masks to few images.
The first mask I'd like to implement is mask like:
XXXOOO
I mean, that on the right everything is masked (to black), and on the left everything ...
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 ...
2
votes
1answer
215 views
How to use Pixel Bender (pbj) in ActionScript3 on large Vectors to make fast calculations?
Remember my old question: 2d game view camera zoom, rotation & offset using 'Filter' / 'Shader' processing?
I figured I could use a Pixel Bender Shader to do the computation for ...
2
votes
0answers
350 views
2D Line drawing with Pixel Shaders
Recently I asked a question, what is the fastest way to render 2D lines using DirectX, and one of the answers mentioned this paper on Fast Prefiltered Lines which uses Pixel Shaders to accomplish ...
0
votes
2answers
230 views
What does tex1D do with a 2d texture?
If I call tex1d from my pixel shader on a texture that has been initialized as a texture2d will it treat the data as a one dimensional array and then just take the element at whichever position you ...
