Hookshot graphics glitches

Field shadows and AMD textures

Issue 468 tracks striped shadows across Hyrule Field and includes a short recording on the issue itself. I link the issue rather than rehosting that clip, because GitHub attachments move. AMD block textures, a sky that turns into a solid rectangle, and a courtyard that goes unusually dark are issues 57 and 1006. The variable those threads share is RX_VK_ASTC_RGBA8=1. It stores the textures as a heavier format, so video memory use goes up and the frame can stall. I would try it only after the driver is current, and I would turn it off if the stall is worse than the blocks.

Stutter, old cards, handheld HUD

The first time you enter a new area, shaders compile and the frame time jumps. The readme calls that expected, and the second visit is the one to judge. If an NVIDIA card stutters on every launch after shaders were already prepared, the same note points at the driver shader cache size and suggests Unlimited or 10 GB.

Cards without mesh shaders, in issue 1001, lose terrain and the cartoon outline, pick up color noise, and sit around 0 to 10 fps. That is a capability gap, not a sharpness slider. Handheld AMD reports add a stretched button prompt for one frame, a flickering map, missing hearts in issues 739 and 798, and orange polygon spikes in issue 837. Issue 151 describes water flickering once video memory is full. Those are separate from the Hyrule Field stripes, so I do not offer one switch for all of them.

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