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G3D B290 script: fix importing mesh with 0 size first frame 

Script use to always use the first frame as the "basis" mesh.
But this caused problems because sometimes the first mesh had a
size 0 i.e. all the verts are the same. This is fixed by adding
a step to search for a frame with the largest number of verts in
different positions. This frame is then used as the basis mesh.
Errors could still happen if the mesh doesn't have any frames
without overlapping verts.
This commit is contained in:
Jammyjamjamman 2021-04-12 01:34:02 +01:00
parent 69b379201c
commit 133a1fc8b5
1 changed files with 38 additions and 24 deletions
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62
source/tools/glexemel/g3d_support_b290.py
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@ -390,15 +390,45 @@ def createMesh(filename, header, data, toblender, operator):
vertsCO = []
vertsNormal = []
# Get the Vertices into an empty mesh. This is difficult because
# we have to pick a frame in the mesh where all the verts are
# different values. Otherwise it loses verts.
# TODO: It's possible to create a mesh where all the verts aren't
# different values in any frame. That could still cause problems.
# Figure out a better solution :p (e.g. moving verts to random
# different positions).
header_most_diff = 0 # This is the header we will use to define the mesh.
n_max_diff = 0 # Max number of "different" vertices found in a frame so far.
for x in range(0, header.framecount):
n_diff_verts = 0 # Current number of "different" vertices.
# Find nubmer of different verts
for i in range(0, header.vertexcount * 3, 3):
vert_cmp = data.vertices[x * header.vertexcount * 3 + i:x * header.vertexcount * 3 + i + 3]
vert_diff = True
for j in range(i + 3, header.vertexcount * 3, 3):
if (data.vertices[x * header.vertexcount * 3 + j:x * header.vertexcount * 3 + j + 3] == vert_cmp):
vert_diff = False
break
n_diff_verts += vert_diff
if n_diff_verts == header.vertexcount:
# if we've found a frame where all the verts are different, we don't need to do anymore searching.
header_most_diff = x
n_max_diff = n_diff_verts # Currently not needed, may be useful when improving this code.
break
if n_diff_verts > n_max_diff:
# If the number of different verts is greater than
# the previous match, this frame is the new max.
n_max_diff = n_diff_verts
header_most_diff = x
# Get the Vertices and Normals into empty Mesh
for x in range(0, header.vertexcount * 3, 3):
vertsCO.extend([(data.vertices[x], data.vertices[x + 1],
data.vertices[x + 2])])
vertsCO.append(tuple(data.vertices[header_most_diff*header.vertexcount*3+x:header_most_diff*header.vertexcount*3+x+3]))
vertsNormal.extend([(data.normals[x], data.normals[x + 1],
data.normals[x + 2])])
# vertsCO.extend([(data.vertices[x+(header.framecount-1)*header.vertexcount*3],data.vertices[x+(header.framecount-1)*header.vertexcount*3+1],data.vertices[x+(header.framecount-1)*header.vertexcount*3+2])])
# vertsNormal.extend([(data.normals[x+(header.framecount-1)*header.vertexcount*3],data.normals[x+(header.framecount-1)*header.vertexcount*3+1],data.normals[x+(header.framecount-1)*header.vertexcount*3+2])])
# mesh.vertices.add(len(vertsCO))
faces = []
faceuv = []
@ -498,31 +528,15 @@ def createMesh(filename, header, data, toblender, operator):
countm = 0
psktexname = "psk" + str(countm)
mesh.uv_layers.new(name=psktexname)
# mesh.tessface_uv_textures.new(name=psktexname)
if (len(faceuv) > 0):
uv_dat = mesh.uv_layers[psktexname].data
for i in range(len(faceuv)):
for j in range(3):
uv_dat[i*3+j].uv = faceuv[i][0][j]
# for countm in range(len(mesh.tessface_uv_textures)):
# uvtex = mesh.tessface_uv_textures[countm] # add one uv texture
# for i, face in enumerate(mesh.tessfaces):
# blender_tface = uvtex.data[i] # face
# mfaceuv = faceuv[i]
# if countm == faceuv[i][1]:
# face.material_index = faceuv[i][1]
# blender_tface.uv1 = mfaceuv[0][0] # uv = (0,0)
# blender_tface.uv2 = mfaceuv[0][1] # uv = (0,0)
# blender_tface.uv3 = mfaceuv[0][2] # uv = (0,0)
# blender_tface.image = img_diffuse
# else:
# blender_tface.uv1 = [0, 0]
# blender_tface.uv2 = [0, 0]
# blender_tface.uv3 = [0, 0]
imported.append(meshobj) # Add to Imported Objects
sk = meshobj.shape_key_add()
for x in range(
1, header.framecount): # Put in Vertex Positions for Keyanimation
for x in range(0, header.framecount): # Put in Vertex Positions for Keyanimation
sk = meshobj.shape_key_add()
for i in range(0, header.vertexcount * 3, 3):
sk.data[i // 3].co[0] = data.vertices[x * header.vertexcount * 3 +
@ -533,7 +547,7 @@ def createMesh(filename, header, data, toblender, operator):
i + 2]
# activate one shapekey per frame
for i in range(1, header.framecount):
for i in range(0, header.framecount):
shape = mesh.shape_keys.key_blocks[i]
shape.value = 0.0
shape.keyframe_insert("value", frame=i)