diff options
Diffstat (limited to 'shaders/lightmap.cpp')
| -rw-r--r-- | shaders/lightmap.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/shaders/lightmap.cpp b/shaders/lightmap.cpp index c676808e..43f71243 100644 --- a/shaders/lightmap.cpp +++ b/shaders/lightmap.cpp @@ -45,6 +45,7 @@ constexpr auto half_neighbors = (int)poor_mans_ceil(neighbor_count/2.f); constexpr auto image_size = TILE_SIZE2 * TILE_MAX_DIM * neighbor_count; constexpr auto chunk_size = TILE_SIZE2 * TILE_MAX_DIM; +constexpr auto chunk_offset = TILE_SIZE2/2; constexpr auto clip_start = Vector2{-1, -1}; constexpr auto clip_scale = 2/image_size; @@ -240,7 +241,7 @@ void lightmap_shader::add_light(Vector2 neighbor_offset, const light_s& light) range *= tile_size; range = std::fmax(0.f, range); - auto center_fragcoord = light.center + neighbor_offset * chunk_size; // window-relative coordinates + auto center_fragcoord = light.center + neighbor_offset * chunk_size + chunk_offset; // window-relative coordinates auto center_clip = clip_start + center_fragcoord * clip_scale; // clip coordinates float alpha = light.color.a() / 255.f; @@ -304,7 +305,7 @@ int lightmap_shader::iter_bounds() void lightmap_shader::add_rect(Vector2 neighbor_offset, Vector2 min, Vector2 max) { - auto off = neighbor_offset*chunk_size; + auto off = neighbor_offset*chunk_size + chunk_offset; min += off; max += off; |