Bmesh: Where did the UV coords go?

Coding Python Support
1

I’m trying to update an script I wrote, but I can’t find how to set the UV coordinates. Help… please?

2

here is the first vertice of the first face.
bpy.context.object.data.uv_loo_layer[0].data[0].uv

3

So that is the equivalent of the old style uv1-4?

Meaning…


bpy.context.object.data.uv_loo_layer[0].data[0].uv #(used to be uv1)
bpy.context.object.data.uv_loo_layer[0].data[1].uv #(used to be uv2)
bpy.context.object.data.uv_loo_layer[0].data[2].uv #(used to be uv3)
bpy.context.object.data.uv_loo_layer[0].data[3].uv #(used to be uv4)

So can there be a bpy.context.object.data.uv_loo_layer[0].data[4].uv or higher index with bMesh?

4

Same problem here with vertexcolors.

5

Thanks, that worked, but it also exposed the extent of the damage that has been done to my script. Like correctly adding faces. I was hoping to fix it before the release, but it doesn’t look like that’s going to happen. :frowning:

Yeah, that too. Sigh.

6

Here is an excerpt from a custom obj importer that I wrote for MakeHuman. In all buttons, I start by checking if the Blender version is prior or later than the official 2.62 release:

def checkBMeshAware():
    global BMeshAware
    print("Blender r%s" % bpy.app.build_revision)
    BMeshAware = (int(bpy.app.build_revision) > 44136)

In the obj importer I collect texture verts and faces:

    if texverts:
        if BMeshAware:
            addUvLayerBMesh(obname, me, texverts, texfaces)
        else:
            addUvLayerNoBMesh(obname, me, texverts, texfaces)

Here are the two functions to add UV layers.

def addUvLayerBMesh(obname, me, texverts, texfaces):            
    uvtex = me.uv_textures.new(name=obname)
    uvloop = me.uv_loop_layers[-1]
    data = uvloop.data
    n = 0
    for tf in texfaces:
        data[n].uv = texverts[tf[0]]
        n += 1
        data[n].uv = texverts[tf[1]]
        n += 1
        data[n].uv = texverts[tf[2]]
        n += 1
        if len(tf) == 4:
            data[n].uv = texverts[tf[3]]
            n += 1
    return

def addUvLayerNoBMesh(obname, me, texverts, texfaces):            
        uvtex = me.uv_textures.new(name=obname)
        data = uvtex.data
        for n in range(len(texfaces)):
            tf = texfaces[n]
            data[n].uv1 = texverts[tf[0]]
            data[n].uv2 = texverts[tf[1]]
            data[n].uv3 = texverts[tf[2]]
            if len(tf) == 4:
                data[n].uv4 = texverts[tf[3]]