Alembic (VFX Geometry Cache)
Open BetaXuất các tòa nhà 3D sang Alembic (.abc) — chuẩn ngành cho VFX và điện ảnh. Tối ưu cho các cảnh lớn với hàng triệu đa giác. Được dùng trong Houdini, Maya, Blender.
Tính năng chính
Giới thiệu về định dạng Alembic
Alembic (.abc) is an open format for exchanging baked geometry, created at Sony Pictures Imageworks and ILM. In film and at VFX studios it is used to pass scenes between packages: the file stores already computed vertices and polygons, without procedural dependencies or construction history, so it opens the same way in Houdini, Maya, Blender, Cinema 4D and Unreal.
A map is exported to Alembic when the city is needed as a ready asset in a heavy scene: a background for a shot, an environment for a camera fly-through, a base for a simulation. The format takes scenes with a large number of objects in its stride and does not drag along the materials and settings of a particular editor.
The output is a single .abc archive: every building is written as a separate polygonal mesh, with a flat base underneath them. The geometry is built in meters and centered on the selected area. There is no animation in the file: it is a static single-frame scene, and you set the camera and object motion yourself.
Chương trình nào mở được tệp Alembic
Các chương trình và ứng dụng sau có thể mở, chỉnh sửa và làm việc với tệp Alembic (VFX Geometry Cache) (.abc) được xuất từ OSM2CDR:
Format specifications
- Open standard
- 3D coordinates supported
- Lossless (no quality loss)
- Stores feature attributes
- Output: 1 file
- Alembic .abc (Sony / ILM open). VFX exchange format for geometry caches. Houdini, Maya, Blender, Unreal.
Ai sử dụng bản đồ Alembic
Cách xuất Alembic
Cách mở tệp sau khi xuất
- Blender — File → Import → Alembic (.abc); the scene arrives as a set of meshes, which are convenient to gather into a collection right away.
- Houdini — a File or Alembic node in the geometry context; from there the buildings can be split into groups and fed into your own procedures.
- Maya — Cache → Alembic Cache → Import Alembic; for large scenes choose the import as gpuCache so the viewport does not sag.
- Cinema 4D and Unreal Engine — import .abc out of the box; in Unreal pick Static Mesh mode, since there is no animation in the file.
- Materials — there are none in the file, assign your own: the geometry arrives clean, split into separate building objects.
Bản đồ phổ biến ở định dạng Alembic
Nhận bản đồ xuất ở định dạng Alembic (VFX Geometry Cache)
Tải bản đồ Alembic chuyên nghiệp từ OpenStreetMap. Tạo tức thì, bất kỳ khu vực nào.