Interesting LOD and Texture Filtering with 8.97 Betas and SSAA/AdaptiveAA

[Bat_Zonko]

In my quest to figure out why my AA settings no longer took in Kingdom of Amalur with the newest driver sets, I discover some wild LOD and texture filtering going when forcing AdaptiveAA (and would assume SSAA) on my 7950.

I did most all my testing in Ettinmere on KoA because it hit the hardest with all the foliage and shadows.

• FXAA is disabled for all shots. I am running the 8.97 Betas.
• Running RadeonPro and turned my normal LOD settings off (Set to Zero).
• AF is forced to 16x in RadeonPro
• Texture Filtering and MipMap are at High Quality
• FlipQueue at 1
• Surface Format Optimizations are disabled.
• The AA Compatibility on RadeonPro is set to SingleGPU Only (that was the only way I could get forced AA to work with the title).
• Straight Multisampling, No Edge Detect.

All are 1920x1080 on Win7 with a Sapphire 7950 OC (1050/1450) with a I7-2600k (My sig machine is my current machine)

1) No AA. Set to Use Application AA

http://i.minus.com/ibyin3bHOSbpzx.png

2) Straight 4x AA.

http://i.minus.com/iONcFtFG5MqbA.png


3) 2X Eq AA Adaptive. Notice the texture detail on the table legs.

http://i.minus.com/izM5zI1InSHTS.png


4) 4x AA Adaptive. Again, massive LOD on the textures. In particular, look at the wood texture on the cooking spit to left of the table now.

http://i.minus.com/if7N1BcstRTod.png


That is some wild texture filtering. Now, is something wrong with the default texture filtering in this game, or in the driver? Or, is the new LOD routine used in the SSAA/Adaptive routine very aggresive?

If this is new LOD settings that takes effect when I enable Adaptive, then I might just learn to live with 2xAA Adaptive and use SMAA/FXAA to clean up some leftovers. Though it is pretty damn aggressive.

Pretty massive FPS hit (4xAA Adapt at that same area is 43FPS) And uses up a bit more memory. For the heck of it I did a 8x EqAA Adapt and had 90%+ GPU usage. That is about double of normal GPU in that area. Good way to test my overclock, I guess

Bats