Question about Interpolation

[whitegentleman]

My Question is about Interpolation.
If i resize an Image, which Interpolation algo. uses SFML 2.0 as default?
Nearest neighbor interpolation ? or Bilinear interpolation? or Bicubic interpolation?
and how can i change it?

Thx in advance  .

[Laurent]

If you zoom or stretch a sf::Texture, the interpolation mode is either:
- nearest pixel if the texture is not smoothed (texture.setSmooth(false)) -- the default
- bilinear if the texture is smoothed (texture.setSmooth(true))

[whitegentleman]

Thx for the fast reply
My last question would be, will sfml get Bicubic interpolation?

[Laurent]

OpenGL (which SFML is based on) only provides linear and nearest pixel interpolations. If you want bicubic interpolation, you must implement it yourself with a shader.

You can take a look at this article:
http://www.codeproject.com/Articles/236394/Bi-Cubic-and-Bi-Linear-Interpolation-with-GLSL