hedge-dev
MSAA Affects the Water Distortion Shader when it shouldn't
Validation
- [x] I have checked the Issues page to see if my problem has already been reported
- [ ] I have confirmed that this bug does not occur in the original game running on original Xbox 360 hardware
If you have DLC installed, please specify which ones you have.
- [x] Apotos & Shamar Adventure Pack
- [x] Chun-nan Adventure Pack
- [x] Empire City & Adabat Adventure Pack
- [x] Holoska Adventure Pack
- [x] Mazuri Adventure Pack
- [x] Spagonia Adventure Pack
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Optional Improvements Refined Sonic Controls Generic QTE Buttons
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All Fixes, (Unleash out of Control Drain, Eggmanland event gallery transition) Allow Unleash Cancel Save Score at Checkpoints Use Official Title on Title Bar Disable Auto Save Warning and DLC Icon Toggle UI with F8
Describe the Bug
It Seems as though MSAA interacts with the water when it shouldn't.
Steps to Reproduce
- Enable MSAA
- Go to any level with water
- Position the camera so an object is rendered above of the water
Expected Behavior
Water Shader isn't affected by MSAA
Footage
It might not show up well, it is very subtle
https://github.com/user-attachments/assets/e28069ad-ba28-4526-904f-372375238fa9
System Specifications
Renderer: Vulkan (Might Matter, not sure) CPU: i3 4160 GPU: r9 280 3GB (1150 MHz OC) GPU Driver: Radeon 22.6.1 (Latest) OS: Windows 10 22H2 Version: 1.0.3
Additional Context
I am unable to test DirectX 12 as my GPU doesn't support Shader Model 6.0 or full DX12 (11.1)
Video Settings (Probably Doesn't Matter):
AspectRatio = "16:9"
ResolutionScale = 1
Fullscreen = true
VSync = false
TripleBuffering = "Auto"
FPS = 241
ShowFPS = true
MaxFrameLatency = 2
Brightness = 0.29999998
AntiAliasing = Both 8x MSAA and None
TransparencyAntiAliasing = false
AnisotropicFiltering = 16
ShadowResolution = "4096"
GITextureFiltering = "Bicubic"
DepthOfFieldQuality = "Auto"
MotionBlur = "Off"
XboxColorCorrection = false
CutsceneAspectRatio = "Unlocked"
UIAlignmentMode = "Edge"
[Update]
LastChecked = 1743811810
This report is very hard to understand and compressed video footage is a really bad choice to show what you're talking about. I don't really understand what "interacts with the water when it shouldn't" means and what exactly you're basing this on.
I don't really understand how to explain it. When there is an actor that isn't affected by the water shader, the AA looks like it affects it, and a thin line around the object is rendered and affected by the water shader. I'll remove the video and replace it with two screenshots when I have access to my computer again, which is probably what I should have done in the first place.
The distortion will make outlines appear due to MSAA having more than one depth sample, yes. But this happens on original hardware as well.
Had a feeling it was, I'm not entirely sure how to add issue types (or if it's a contributor only thing), so feel free to place the "Original Game Bug" type on here.
The distortion will make outlines appear due to MSAA having more than one depth sample, yes. But this happens on original hardware as well.
Some sample images from real hardware showing the described the same artifcating
