Skip to content

Fix tilemap UV rounding error #22449

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
mockersf merged 1 commit into from
Jan 11, 2026
+2 −2
Merged

Fix tilemap UV rounding error #22449

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 2 additions & 2 deletions crates/bevy_sprite_render/src/tilemap_chunk/tilemap_chunk_material.wgsl
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,7 @@ fn fragment(in: VertexOutput) -> @location(0) vec4<f32> {
let chunk_size = textureDimensions(tile_data, 0);
let tile_uv = in.uv * vec2<f32>(chunk_size);
var tile_coord = clamp(vec2<u32>(floor(tile_uv)), vec2<u32>(0), chunk_size - 1);
let local_uv = tile_uv - vec2<f32>(tile_coord);
tile_coord.y = chunk_size.y - 1 - tile_coord.y;

let tile = get_tile_data(tile_coord);
Expand All @@ -44,7 +45,6 @@ fn fragment(in: VertexOutput) -> @location(0) vec4<f32> {
discard;
}

let local_uv = fract(tile_uv);
let tex_color = textureSample(tileset, tileset_sampler, local_uv, tile.tileset_index);
let final_color = tex_color * tile.color;

Expand All @@ -53,4 +53,4 @@ fn fragment(in: VertexOutput) -> @location(0) vec4<f32> {
}

return final_color;
}
}