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HQx rendering is rougher in devbuilds

Posted: Mon Jul 28, 2014 16:22
by plums
Here is a screenshot from 1.8.02, using HQ3x scaling and bilinear filtering:
Image

Here is one from the current build with the same settings:
Image

The edges of the pistol look much rougher in the second shot to me. This change is even more apparent when enemies and other sprites are up close (harder to get a direct comparison shot though).

I believe that gzdoom-G1.9pre-502-g0aba6e0.7z was the first devbuild where this change was noticeable, making https://github.com/coelckers/gzdoom/pull/6 the likely cause.

Re: HQx rendering is rougher in devbuilds

Posted: Tue Jul 29, 2014 10:11
by plums
To add to this: it appears that the HQx code at https://code.google.com/p/hqx/ actually produces different results than the original algorithm - much worse IMHO.