Yamyam: 1版をインポートしました

2018-06-28T21:08:49Z

1版をインポートしました

wiki>Bloutiouf: Create page with usage, video, notes

2014-06-20T17:50:01Z

Create page with usage, video, notes

新規ページ

{{ScriptInfo
|name= Reproject image
|tooltip= Reproject UV coords based on image plane
|menu= UV unwrap > Reproject image
|usage= Pin the reference plane's vertices (in UV Editor), select the vertices that you want to reproject along with the reference vertices (in 3D View), and execute Reproject image
|version= 1.0
|blender= >= 2.70
|category= UV
|author= Jonathan Giroux (Bloutiouf)
|license= MIT License
|distribution= Extern
|exe= uv_reproject_image.py
|download= [https://raw.githubusercontent.com/Bloutiouf/uv_reproject_image/master/uv_reproject_image.py Latest version on Github]
|link= [https://github.com/Bloutiouf/uv_reproject_image Github]
}}

This addon reprojects UV coords based on a reference image plane. It is intended to work with [[Extensions:2.6/Py/Scripts/Add_Mesh/Planes_from_Images|Import as planes]] when you want to retopologize an image.

When your planes are axis-aligned and your retopologized mesh doesn't exceed the reference image, [[Doc:2.6/Manual/Textures/Mapping/UV/Unwrapping#Project_From_View|UV unwrap > Project from view (Bounds)]] may suffice. Otherwise, this addon will help you.

== Usage ==

<youtube>GKWtmlR1Uak</youtube>

You have imported an image as a plane ('''reference''') and you have retopologized it by creating a new mesh ('''target'''). They have to be in the same ''mesh datablock''. The goal is to make the target vertices to use correct, interpolated UV coordinates.

# Switch to the ''UV Editing'' view at the top of the window, because you'll need a ''3D View'' and a ''UV/Image Editor'' together.
# In the ''3D View'', select the '''reference''' plane. In the ''UV/Image Editor'', select the four vertices of the plane ({{shortcut|A}}) and pin them (''UVs > Pin'' or {{shortcut|P}}).
# In the ''3D View'', select the '''target''' mesh (i.e. the vertices that you want to reassign interpolated UV). In the ''UV/Image Editor'', you'll notice that they aren't linked with any texture, therefore select the correct texture in the dropdown.
# In the ''3D View'', select the '''reference''' and '''target''' meshes ({{shortcut|A}} twice), and execute ''UV unwrap > Reproject image'' (''Mesh > UV Unwrap...'' or {{shortcut|U}}).

Your '''target''' mesh is now reprojected according to the '''reference''' plane!

== Notes ==

When you follow the previous steps, you'll see a warning message:

The reference plane is defined by more than 3 points, incoherencies may arise.

Basically, this message is a reminder that you should keep your reference plane as a rectangle. Indeed, you have pinned 4 vertices, but only 3 are needed to define a plane. The algorithm will always reproject according to three vertices, and you usually don't know which ones they are. If you have kept it as a rectangle, this is good, ignore the message.

The '''reference''' and '''target''' meshes may have any position and rotation in space. You don't need to align the view to make it work.

Step 3. is theoretically optional. Blender has this strange behavior of differentiating the texture used in the 3D view and the texture used for the rendering. So even if you don't select an image to use, the '''target''' mesh will anyway render the proper texture. But you'll find yourself manipulating a gray mesh in the editor, which is not reasonable.

== License ==

MIT License

← 古い版	2018年6月28日 (木) 21:08時点における版
(相違点なし)

Extensions:2.6/Py/Scripts/UV/Reproject image - 版の履歴

Yamyam: 1版 をインポートしました

wiki>Bloutiouf: Create page with usage, video, notes

Yamyam: 1版をインポートしました