10-08-2018, 09:30 PM
(This post was last modified: 10-09-2018, 12:53 AM by GuilhermeGB.)
I tested NFS Underground 2 with OpenGL (Hardware) and I noticed there's no blur motion issue as with Direct3D 11 or Direct3D 9. I checked the wiki and there's a recommendation to use Skipdraw with Direct3D 11 and there's nothing about OpenGL, also Skipdraw isn't too effective. The bad thing is that when it's raining there's a graphic issue that can disturb sometimes, and the performance is not as good as Direct3D 11.
OpenGL default (no motion blur issue)
Direct3D 11 default (motion blur issue)
Direct3D 11 Skipdraw 2 (motion blur is still exagerated)
OpenGL raining (in some spots this issue can disturb)
I also noticed the Blending Unit Accury emulation improves the reflection quality and lights effects a lot in this game when using higher values. It also adds a dark reddish filter (it's the PS2 version of "enhanced constrast" option on PC). With lower values there's almost no car reflection and lights effects are bad. In my opinion the reflection details on PS2 version is superior to PC. However the game runs 30-40 FPS with higher values, which is not playable.
Blending Basic
Blending Full
With Skipdraw 5, OpenGL and Blending Unit Accury in High, we have a nice graphic quality (better colors), the dark reddish filter is removed, I noticed a sharper graphic, probably the antialiasing is removed, some HUD textures are removed too. But all that until the rain starts, then we have another weird graphic issue.
Blending Basic Skipdraw 5
Blending Full Skipdraw 5
Blending Basic Skipdraw 5, raining
An now a comparison between Software rendered graphics and Hardware rendered with Full blending at native resolution, both OpenGL:
Hardware
Software
OpenGL default (no motion blur issue)
Direct3D 11 default (motion blur issue)
Direct3D 11 Skipdraw 2 (motion blur is still exagerated)
OpenGL raining (in some spots this issue can disturb)
I also noticed the Blending Unit Accury emulation improves the reflection quality and lights effects a lot in this game when using higher values. It also adds a dark reddish filter (it's the PS2 version of "enhanced constrast" option on PC). With lower values there's almost no car reflection and lights effects are bad. In my opinion the reflection details on PS2 version is superior to PC. However the game runs 30-40 FPS with higher values, which is not playable.
Blending Basic
Blending Full
With Skipdraw 5, OpenGL and Blending Unit Accury in High, we have a nice graphic quality (better colors), the dark reddish filter is removed, I noticed a sharper graphic, probably the antialiasing is removed, some HUD textures are removed too. But all that until the rain starts, then we have another weird graphic issue.
Blending Basic Skipdraw 5
Blending Full Skipdraw 5
Blending Basic Skipdraw 5, raining
An now a comparison between Software rendered graphics and Hardware rendered with Full blending at native resolution, both OpenGL:
Hardware
Software
PC: Intel Core i5 3470 3.2GHz / GTX 660 2GB GDDR5 192-bit / 8GB DDR3 1600MHz / Windows 10 Pro x64