1
vote
1answer
314 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 ...
3
votes
0answers
406 views

How to achieve supersampling / anti-aliasing in pixel shaders?

I am trying to write a couple pixel shaders to apply to images similar to Photoshop effects. For example this effect: ...
1
vote
2answers
416 views

How to set multiple times, in a single spritebatch, the same pixel shader parameter

I make a test with Effect class in XNA and I want to set multiple times the same parameters (MyParameter in below code). My code is : [...] //In Engine class Effect ShaderEffect = ...
1
vote
1answer
739 views

XNA HLSL 2D outline shader

I have gotten into quite a bit of trouble getting my rendering correct in my tile based 2D game. This kind of shader is surprisingly annoying to write, I've heard (we used it in one of our 3D ...
0
votes
2answers
656 views

HLSL shader optimization [closed]

The following HLSL shader (without preprocessing) results in 65 arithmetic operations (see below). Can the same effect achieved with <=64 operations? // Center of "light" float x; float y; // ...
1
vote
1answer
724 views

How to set TextureFilter to Point to make example Bloom filter work?

I have simple app that renders some particles and now I am trying to apply the bloom shader from the xna samplers ( http://create.msdn.com/en-US/education/catalog/sample/bloom ) to it, but I am ...