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AMD RX 6750 XT, v3.0.0-rc.3: outline on distant mountains, blocky patches on the waterfall mist, fps drop when a broken sign moves on water or grass #308

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opened 2026-11-13 21:06:23 +00:00 by canc1234 · 3 comments

canc1234 commented

2026-11-13 21:06:23 +00:00

Longshot version

v3.0.0-rc.3

Channel

Release candidate

What kind of problem

Low fps or stutter

What happened

First of all, thank you for continuing the work. It already runs a bit better than Hookshot for me. I'm attaching three screenshots and two logs (longshot_log.2.txt and longshot_log.3.txt).

Setup: Longshot v3.0.0-rc.3 (source cb01b5a3), AMD Radeon RX 6750 XT 12 GB (driver 26.10.1), Intel i7-11700F, 32 GB RAM, Windows 11, 2560x1440, the game's own upscaler.

Outline on distant mountains and objects (screenshots 2 and 3)
In Hyrule Field there is a dotted bright outline that follows the mountain ridges against the sky (screenshot 2, with the castle in the distance). In screenshot 3 the blue arrows point at a thin dotted line at the end of the path, near the cave entrance. It looks like the same kind of artifact on distant geometry. It was also there in Hookshot 2.1.0 on the same hardware.
Blocky patches on the waterfall (screenshot 1)
On the white water and mist of the waterfall there are large blocky, stair-stepped patches. It looks like a low resolution layer, maybe related to shadows or the mist, but I'm not sure.
Fps drop when a broken sign moves on water or grass
When I break a sign and it ends up on water or on grass and moves on them, the fps drop to 5-6 fps. I can reproduce it every time. I'm not sure if it is the water or grass effect, or the physics of the sign. In the logs I see a few windows with very low fps, and since I don't get such low fps anywhere else (I have not reached Castle Town yet), I think these windows are the sign tests. In both of them the GPU time is low but the replay on the CPU is very slow:

log 3, line 8905: 11.7 fps, GPU 16.1 ms, but dispatch replay 65.5 ms for 137 dispatches (normal is below 1 ms)
log 3, line 77440: 15.0 fps, GPU 10.0 ms, but draw replay 46.96 ms for only 271 draws (normal is about 2 ms)
So it seems to be the CPU side and not the GPU. I'm not 100% sure these are the sign tests, so I'll note the exact moment and send a log taken right after if that helps.

Performance in general
In Hyrule Field and Kakariko Village I get about 25-30 fps on average. Other places are better: the median of all the stats windows in the logs (120 presents each) is about 55 fps. One more thing I noticed in log 2 is a single draw that took 41 seconds ("slow submit: 41123.4 ms: draw 41119.4" at line 6684), with the game at 0.3 fps during that time.

I'm happy to test anything on AMD and send more logs.

Where in the game

Where I found it: the sign problem happens in Zora's Fountain, outside Jabu-Jabu's Belly, where I first noticed it. I see the outline in many outdoor places: Hyrule Field, Lake Hylia, the Fishing Pond and Death Mountain Trail (the path to Goron City). The blocky shadow in every water surface

How often

Every time

Graphics card and driver version

AMD Radeon RX 6750 XT 12 GB (driver 26.10.1)

CPU, RAM and operating system

Intel i7-11700F, 32 GB RAM, Windows 11

Changes from the defaults

2560x1440, the game's own upscaler.

longshot_log.txt

i'm attaching the logs

Screenshots or video

No response

Before you send it

The problem is still there on the newest release or nightly.
I searched the open issues for it.
I'm not attaching game files, keys, the game's executable, its .bin caches or saves.

### Longshot version v3.0.0-rc.3 ### Channel Release candidate ### What kind of problem Low fps or stutter ### What happened First of all, thank you for continuing the work. It already runs a bit better than Hookshot for me. I'm attaching three screenshots and two logs (longshot_log.2.txt and longshot_log.3.txt). Setup: Longshot v3.0.0-rc.3 (source cb01b5a3), AMD Radeon RX 6750 XT 12 GB (driver 26.10.1), Intel i7-11700F, 32 GB RAM, Windows 11, 2560x1440, the game's own upscaler. 1. Outline on distant mountains and objects (screenshots 2 and 3) In Hyrule Field there is a dotted bright outline that follows the mountain ridges against the sky (screenshot 2, with the castle in the distance). In screenshot 3 the blue arrows point at a thin dotted line at the end of the path, near the cave entrance. It looks like the same kind of artifact on distant geometry. It was also there in Hookshot 2.1.0 on the same hardware. 2. Blocky patches on the waterfall (screenshot 1) On the white water and mist of the waterfall there are large blocky, stair-stepped patches. It looks like a low resolution layer, maybe related to shadows or the mist, but I'm not sure. 3. Fps drop when a broken sign moves on water or grass When I break a sign and it ends up on water or on grass and moves on them, the fps drop to 5-6 fps. I can reproduce it every time. I'm not sure if it is the water or grass effect, or the physics of the sign. In the logs I see a few windows with very low fps, and since I don't get such low fps anywhere else (I have not reached Castle Town yet), I think these windows are the sign tests. In both of them the GPU time is low but the replay on the CPU is very slow: - log 3, line 8905: 11.7 fps, GPU 16.1 ms, but dispatch replay 65.5 ms for 137 dispatches (normal is below 1 ms) - log 3, line 77440: 15.0 fps, GPU 10.0 ms, but draw replay 46.96 ms for only 271 draws (normal is about 2 ms) So it seems to be the CPU side and not the GPU. I'm not 100% sure these are the sign tests, so I'll note the exact moment and send a log taken right after if that helps. 4. Performance in general In Hyrule Field and Kakariko Village I get about 25-30 fps on average. Other places are better: the median of all the stats windows in the logs (120 presents each) is about 55 fps. One more thing I noticed in log 2 is a single draw that took 41 seconds ("slow submit: 41123.4 ms: draw 41119.4" at line 6684), with the game at 0.3 fps during that time. I'm happy to test anything on AMD and send more logs. ### Where in the game Where I found it: the sign problem happens in Zora's Fountain, outside Jabu-Jabu's Belly, where I first noticed it. I see the outline in many outdoor places: Hyrule Field, Lake Hylia, the Fishing Pond and Death Mountain Trail (the path to Goron City). The blocky shadow in every water surface ### How often Every time ### Graphics card and driver version AMD Radeon RX 6750 XT 12 GB (driver 26.10.1) ### CPU, RAM and operating system Intel i7-11700F, 32 GB RAM, Windows 11 ### Changes from the defaults 2560x1440, the game's own upscaler. ### longshot_log.txt i'm attaching the logs ### Screenshots or video _No response_ ### Before you send it - [x] The problem is still there on the newest release or nightly. - [x] I searched the open issues for it. - [x] I'm not attaching game files, keys, the game's executable, its .bin caches or saves.

Screenshot 2026-11-13 214757.png

4.7 MiB

Screenshot 2026-11-13 214947.png

5.9 MiB

longshot_log.4.txt

1.5 MiB

Screenshot 2026-11-13 215004.png

6.2 MiB

longshot_log.3.txt

12 MiB

canc1234 added the

kind

bug

label

2026-11-13 21:06:23 +00:00

APusija04 referenced this issue

2026-11-14 05:05:21 +00:00

[RX 6600] Game crashes with GPU timeout #365

d4nkn3ss commented

2026-11-14 11:59:55 +00:00

Contributor

Hardware: RTX 3080 10 GB, NVIDIA 621.14, i9-12900K, 64 GB, Windows 11; 2560x1440, Auto settings. Build: nightly-34 (545618fc, the v3.0.0-rc.1 commit), so it is older than rc.3 and not new in a recent nightly.

I'll check the same spot on current main on this PC and add what it shows.

The waterfall-mist part of this happens on NVIDIA as well, so it isn't only AMD. A player here found it at the small waterfall in Hyrule Field just outside Zora's River (adult, night). Where the falls meet the ground, the splash and mist are drawn as a flat, pale pinkish-grey sheet with a sawtooth top edge, like a cut-out, instead of soft mist. It looked the same in both shots, about a minute apart. Hardware: RTX 3080 10 GB, NVIDIA 621.14, i9-12900K, 64 GB, Windows 11; 2560x1440, Auto settings. Build: **nightly-34 (545618fc, the v3.0.0-rc.1 commit)**, so it is older than rc.3 and not new in a recent nightly. ![The mist at the foot of the small waterfall outside Zora's River (nightly-34, RTX 3080)](https://git.magicbean.dev/attachments/97093d84-4c4c-42e1-ab93-e804f0c93366) ![The same spot a minute later](https://git.magicbean.dev/attachments/ba139959-b60c-4db4-8972-dd69547bac14) ![Zoomed: the mist as a flat sheet with a jagged top edge](https://git.magicbean.dev/attachments/b7a25761-de1f-49eb-a27a-6cd42bfe39aa) I'll check the same spot on current main on this PC and add what it shows.

zora-river-falls-1.png

2.6 MiB

zora-river-falls-2.png

2.6 MiB

zora-river-falls-2-zoom.png

707 KiB

d4nkn3ss commented

2026-11-14 13:31:31 +00:00

Contributor

Correction and the check on current main, about my comment above. Looking closer, the jagged top edge isn't the mist: it's the stalactites of a rock arch at the mouth of the Zora's River gorge, seen from Hyrule Field. What looks wrong is what fills the arch at night: a flat, uniform, fairly bright purple-pink haze with no sign of the gorge behind it, much lighter than the night outside, so from a distance the arch reads as a cut-out sheet. Current main (v3.0.0-rc.3-64-g5e072fc8, RTX 3080, NVIDIA 621.14, 2560x1440) shows the same at the same spot, so it isn't fixed since nightly-34. I can't tell from here whether that haze is the fog doing what it should for the gorge or the same fault as the waterfall-mist blocks above; it may be a separate thing from this issue's AMD artifacts.

mooki added the

gpu/amd

platform/windows

labels

2026-11-14 18:13:32 +00:00

BeanIssues commented

2026-11-15 16:00:48 +00:00

Collaborator

From AndreTheSeal#1138 on Discord:

Another affected setup: AMD Radeon RX 9070 (Adrenalin 26.11.1), Ryzen 7 7800X3D, 32 GB DDR5-6000, Windows 11. User reports the line artifact appears immediately after the opening cutscene. Attached screenshot shows thin bright lines across the scene; longshot_log.txt and two screenshots were provided, but the log attachment is too large to read here. Version/channel not provided in the message.

From [AndreTheSeal#1138 on Discord](https://discord.com/channels/1569849200047427645/1571457117758558218/1571457117758558218): Another affected setup: AMD Radeon RX 9070 (Adrenalin 26.11.1), Ryzen 7 7800X3D, 32 GB DDR5-6000, Windows 11. User reports the line artifact appears immediately after the opening cutscene. Attached screenshot shows thin bright lines across the scene; longshot_log.txt and two screenshots were provided, but the log attachment is too large to read here. Version/channel not provided in the message.