Fix near zero precision error

TokisanGames · Sep 3, 2024 · 97a7bdb · 97a7bdb
1 parent 6191c8d
commit 97a7bdb
Showing 1 changed file with 5 additions and 10 deletions.
diff --git a/src/terrain_3d_storage.cpp b/src/terrain_3d_storage.cpp
@@ -453,11 +453,9 @@ void Terrain3DStorage::set_pixel(const MapType p_map_type, const Vector3 &p_glob
  return;
  }
  Vector2i global_offset = Vector2i(_region_offsets[region]) * _region_size;
- Vector3 descaled_position = p_global_position / _terrain->get_mesh_vertex_spacing();
- Vector2i img_pos = Vector2i(
- Vector2(descaled_position.x - global_offset.x,
- descaled_position.z - global_offset.y)
- .floor());
+ Vector3 descaled_pos = p_global_position / _terrain->get_mesh_vertex_spacing();
+ Vector2i img_pos = Vector2i(descaled_pos.x - global_offset.x, descaled_pos.z - global_offset.y);
+ img_pos = img_pos.clamp(Vector2i(), Vector2i(_region_size - 1, _region_size - 1));
  Ref<Image> map = get_map_region(p_map_type, region);
  map->set_pixelv(img_pos, p_pixel);
 }
@@ -473,11 +471,8 @@ Color Terrain3DStorage::get_pixel(const MapType p_map_type, const Vector3 &p_glo
  return COLOR_NAN;
  }
  Vector2i global_offset = Vector2i(_region_offsets[region]) * _region_size;
- Vector3 descaled_position = p_global_position / _terrain->get_mesh_vertex_spacing();
- Vector2i img_pos = Vector2i(
- Vector2(descaled_position.x - global_offset.x,
- descaled_position.z - global_offset.y)
- .floor());
+ Vector3 descaled_pos = p_global_position / _terrain->get_mesh_vertex_spacing();
+ Vector2i img_pos = Vector2i(descaled_pos.x - global_offset.x, descaled_pos.z - global_offset.y);
  img_pos = img_pos.clamp(Vector2i(), Vector2i(_region_size - 1, _region_size - 1));
  Ref<Image> map = get_map_region(p_map_type, region);
  return map->get_pixelv(img_pos);