When replacing .obj after retopo, all cameras are discarded #1870

retsyn · 2023-01-16T16:07:19Z

retsyn
Jan 16, 2023

I would think that more people would have this issue than myself, but I can't find anything.

I'd retopo my mesh, (I tried an automated retopo in Instant Meshes and a manual retopo in Maya) and when I returned to meshroom, and replaced the mesh path and ran texturing once again, I'd notice the output was all black.
I figured it was because initially I was missing UVs on my retopo, so I generated them properly and returned to meshroom again, but I continue to get solid black textures.

Some notable warnings I'm seeing are:

[10:52:20.741106][warning] Alembic LOAD: NO OBSERVATIONS_WITH_FEATURES: , mvg_visibilityFeatId: 0, mvg_visibilityFeatPos: 0, OBSERVATIONS_WITH_FEATURES flag: false

And also, it's reporting that all cameras are being skipped:

[10:52:29.089269][info] - camera 2119626265 (95/95) unused.

Pouring over discussions and tutorials, I can't really lock onto what step I'm missing or gumming up.
Otherwise, the experience with the software has been great so far!

The texture node log is this:

Program called with the following parameters:
 * angleHardThreshold = 90
 * bestScoreThreshold = 0.1
 * correctEV = 0
 * downscale =  Unknown Type "unsigned int"
 * fillHoles = 1
 * flipNormals = 0
 * forceVisibleByAllVertices = 0
 * imagesFolder = "c:/3DDev/Dickens/MeshroomCache/PrepareDenseScene/5085fc1ec8d6155f75c0224394bdbe7c8a537188"
 * input = "c:/3DDev/Dickens/MeshroomCache/Meshing/cd71ae05f98439e16dc8493ade31dba479c00b8c/densePointCloud.abc"
 * inputMesh = "C:/3DDev/Dickens/reduce_test/reduce_best_3.obj"
 * multiBandDownscale =  Unknown Type "unsigned int"
 * multiBandNbContrib =  Unknown Type "class std::vector<int,class std::allocator<int> >"
 * output = "c:/3DDev/Dickens/MeshroomCache/Texturing/2c32d09665a7bf8191cec4bc3b814ca11ff84d2d"
 * outputTextureFileType = "png"
 * padding =  Unknown Type "unsigned int"
 * processColorspace = "sRGB"
 * subdivisionTargetRatio = 0.8
 * textureSide =  Unknown Type "unsigned int"
 * unwrapMethod = "Basic"
 * useScore = 1
 * useUDIM = 1
 * verboseLevel = "info"
 * visibilityRemappingMethod = "PullPush"

[10:52:20.669881][info] Load dense point cloud.
[10:52:20.741106][warning] Alembic LOAD: NO OBSERVATIONS_WITH_FEATURES: , mvg_visibilityFeatId: 0, mvg_visibilityFeatPos: 0, OBSERVATIONS_WITH_FEATURES flag: false
[10:52:21.882865][info] Found 1 image dimension(s): 
[10:52:21.882865][info] 	- [1920x1080]
[10:52:21.990002][info] Overall maximum dimension: [1920x1080]
[10:52:21.990002][info] Load input mesh.
[10:52:21.990002][info] Loading mesh from obj file: C:/3DDev/Dickens/reduce_test/reduce_best_3.obj
[10:52:22.188047][info] 	- # vertices: 79548
	- # normals: 311200
	- # uv coordinates: 111439
	- # triangles: 155572
[10:52:22.901449][info] Mesh loaded: 
	- #points: 79548
	- # triangles: 155572
[10:52:22.902449][info] Convert dense point cloud into ref mesh
[10:52:23.098988][info] Writing obj and mtl file.
[10:52:23.314661][info] Writing done: 
	- obj file: c:/3DDev/Dickens/MeshroomCache/Texturing/2c32d09665a7bf8191cec4bc3b814ca11ff84d2d\texturedMesh.obj
	- mtl file: c:/3DDev/Dickens/MeshroomCache/Texturing/2c32d09665a7bf8191cec4bc3b814ca11ff84d2d\texturedMesh.mtl
[10:52:23.314661][info] Subdivide mesh.
[10:52:23.314661][info] nb pts init: 79548
[10:52:23.314661][info] nb tris init: 155600
[10:52:23.314661][info] nb points in refMesh: 368584
[10:52:23.314661][info] targetNbPts: 294867
[10:52:23.850920][info] 	- # triangles to subdivide: 65815
[10:52:23.850920][info] 	- # pts to add: 81220
[10:52:24.776127][info] 	- # triangles to subdivide: 92168
[10:52:24.776127][info] 	- # pts to add: 67471
[10:52:26.047915][info] 	- # triangles to subdivide: 8488
[10:52:26.047915][info] 	- # pts to add: 4257
[10:52:27.306749][info] 	- # triangles to subdivide: 2
[10:52:27.306749][info] 	- # pts to add: 1
[10:52:27.333756][info] Nb points after subdivision: 232497
[10:52:27.333756][info] Nb tris after subdivision: 461387
[10:52:27.333756][info] Number of triangle subdivisions: 166473
[10:52:27.333756][info] updateAtlases
[10:52:27.426775][info] remapMeshVisibility based on triangles start.
[10:52:28.546820][info] remapMeshVisibility done.
[10:52:28.551821][info] Generate textures.
[10:52:28.551821][info] Texturing: Use multiband blending with the following contributions per band:
[10:52:28.551821][info]   - 1
[10:52:28.551821][info]   - 5
[10:52:28.551821][info]   - 10
[10:52:28.551821][info] Texturing in sRGB colorspace.
[10:52:28.552821][info] Images loaded from cache with: no exposure correction
[10:52:28.552821][info] nbAtlas: 1
[10:52:28.552821][info] availableRam: 5735
[10:52:28.552821][info] availableMem: 5551
[10:52:28.552821][info] memoryPerAtlas: 3164
[10:52:28.552821][info] nbAtlasMax (after rounding): 1
[10:52:28.552821][info] Total amount of available RAM: 5735 MB.
[10:52:28.552821][info] Total amount of memory remaining for the computation: 5551 MB.
[10:52:28.552821][info] Total amount of an image in memory: 23 MB.
[10:52:28.552821][info] Total amount of an atlas pyramid in memory: 3072 MB.
[10:52:28.552821][info] Processing 1 atlases by chunks of 1
[10:52:28.552821][info] Generating texture for atlases 1 to 1
[10:52:28.552821][info] Generating texture for atlas 1/1 (0 triangles).
[10:52:28.552821][info] Reading pixel color.
[10:52:29.088269][info] - camera 7978122 (1/95) unused.
[10:52:29.088269][info] - camera 9881711 (2/95) unused.
[10:52:29.088269][info] - camera 12936773 (3/95) unused.
[10:52:29.088269][info] - camera 15893909 (4/95) unused.
[10:52:29.088269][info] - camera 80374639 (5/95) unused.
[10:52:29.088269][info] - camera 85266268 (6/95) unused.
[10:52:29.088269][info] - camera 90704364 (7/95) unused.
[10:52:29.088269][info] - camera 94435058 (8/95) unused.
[10:52:29.088269][info] - camera 139433800 (9/95) unused.
[10:52:29.088269][info] - camera 144272646 (10/95) unused.
[10:52:29.088269][info] - camera 151279423 (11/95) unused.
[10:52:29.088269][info] - camera 157255425 (12/95) unused.
[10:52:29.088269][info] - camera 170791455 (13/95) unused.
[10:52:29.088269][info] - camera 171863973 (14/95) unused.
[10:52:29.088269][info] - camera 179430686 (15/95) unused.
[10:52:29.088269][info] - camera 203507946 (16/95) unused.
[10:52:29.088269][info] - camera 219059597 (17/95) unused.
[10:52:29.088269][info] - camera 225321029 (18/95) unused.
[10:52:29.088269][info] - camera 230930360 (19/95) unused.
[10:52:29.088269][info] - camera 245605436 (20/95) unused.
[10:52:29.088269][info] - camera 270990535 (21/95) unused.
[10:52:29.088269][info] - camera 303590840 (22/95) unused.
[10:52:29.088269][info] - camera 343731542 (23/95) unused.
[10:52:29.089269][info] - camera 378554694 (24/95) unused.
[10:52:29.089269][info] - camera 382087115 (25/95) unused.
[10:52:29.089269][info] - camera 388438835 (26/95) unused.
[10:52:29.089269][info] - camera 391902012 (27/95) unused.
[10:52:29.089269][info] - camera 407353103 (28/95) unused.
[10:52:29.089269][info] - camera 415040111 (29/95) unused.
[10:52:29.089269][info] - camera 421508076 (30/95) unused.
[10:52:29.089269][info] - camera 454681633 (31/95) unused.
[10:52:29.089269][info] - camera 482978010 (32/95) unused.
[10:52:29.089269][info] - camera 573022991 (33/95) unused.
[10:52:29.089269][info] - camera 594716796 (34/95) unused.
[10:52:29.089269][info] - camera 630516152 (35/95) unused.
[10:52:29.089269][info] - camera 632446084 (36/95) unused.
[10:52:29.089269][info] - camera 635219495 (37/95) unused.
[10:52:29.089269][info] - camera 644827106 (38/95) unused.
[10:52:29.089269][info] - camera 673297818 (39/95) unused.
[10:52:29.089269][info] - camera 682039567 (40/95) unused.
[10:52:29.089269][info] - camera 709409301 (41/95) unused.
[10:52:29.089269][info] - camera 744958951 (42/95) unused.
[10:52:29.089269][info] - camera 863158905 (43/95) unused.
[10:52:29.089269][info] - camera 872540557 (44/95) unused.
[10:52:29.089269][info] - camera 880263278 (45/95) unused.
[10:52:29.089269][info] - camera 882234759 (46/95) unused.
[10:52:29.089269][info] - camera 928412433 (47/95) unused.
[10:52:29.089269][info] - camera 947009815 (48/95) unused.
[10:52:29.089269][info] - camera 953996803 (49/95) unused.
[10:52:29.089269][info] - camera 987750651 (50/95) unused.
[10:52:29.089269][info] - camera 1006869937 (51/95) unused.
[10:52:29.089269][info] - camera 1038564640 (52/95) unused.
[10:52:29.089269][info] - camera 1065842601 (53/95) unused.
[10:52:29.089269][info] - camera 1070676237 (54/95) unused.
[10:52:29.089269][info] - camera 1089616145 (55/95) unused.
[10:52:29.089269][info] - camera 1174707742 (56/95) unused.
[10:52:29.089269][info] - camera 1178080718 (57/95) unused.
[10:52:29.089269][info] - camera 1191953678 (58/95) unused.
[10:52:29.089269][info] - camera 1228912368 (59/95) unused.
[10:52:29.089269][info] - camera 1241796252 (60/95) unused.
[10:52:29.089269][info] - camera 1272543465 (61/95) unused.
[10:52:29.089269][info] - camera 1298704020 (62/95) unused.
[10:52:29.089269][info] - camera 1310789238 (63/95) unused.
[10:52:29.089269][info] - camera 1326309105 (64/95) unused.
[10:52:29.089269][info] - camera 1351741423 (65/95) unused.
[10:52:29.089269][info] - camera 1403646002 (66/95) unused.
[10:52:29.089269][info] - camera 1481484130 (67/95) unused.
[10:52:29.089269][info] - camera 1481502378 (68/95) unused.
[10:52:29.089269][info] - camera 1526730078 (69/95) unused.
[10:52:29.089269][info] - camera 1538686464 (70/95) unused.
[10:52:29.089269][info] - camera 1693408603 (71/95) unused.
[10:52:29.089269][info] - camera 1703575467 (72/95) unused.
[10:52:29.089269][info] - camera 1734737131 (73/95) unused.
[10:52:29.089269][info] - camera 1744786564 (74/95) unused.
[10:52:29.089269][info] - camera 1750098097 (75/95) unused.
[10:52:29.089269][info] - camera 1766760809 (76/95) unused.
[10:52:29.089269][info] - camera 1818403939 (77/95) unused.
[10:52:29.089269][info] - camera 1836809760 (78/95) unused.
[10:52:29.089269][info] - camera 1846638104 (79/95) unused.
[10:52:29.089269][info] - camera 1857553229 (80/95) unused.
[10:52:29.089269][info] - camera 1902183064 (81/95) unused.
[10:52:29.089269][info] - camera 1907479426 (82/95) unused.
[10:52:29.089269][info] - camera 1912386519 (83/95) unused.
[10:52:29.089269][info] - camera 1930815412 (84/95) unused.
[10:52:29.089269][info] - camera 1937586384 (85/95) unused.
[10:52:29.089269][info] - camera 1980625806 (86/95) unused.
[10:52:29.089269][info] - camera 2011284500 (87/95) unused.
[10:52:29.089269][info] - camera 2020930396 (88/95) unused.
[10:52:29.089269][info] - camera 2029934919 (89/95) unused.
[10:52:29.089269][info] - camera 2031141672 (90/95) unused.
[10:52:29.089269][info] - camera 2034184684 (91/95) unused.
[10:52:29.089269][info] - camera 2060795009 (92/95) unused.
[10:52:29.089269][info] - camera 2073577888 (93/95) unused.
[10:52:29.089269][info] - camera 2104745377 (94/95) unused.
[10:52:29.089269][info] - camera 2119626265 (95/95) unused.
[10:52:29.089269][info] Create texture 1
[10:52:29.089269][info]   - Computing final (average) color.
[10:52:29.432349][info]   - Filling texture holes.
[10:52:34.497856][info]   - Downscaling texture (2x).
[10:52:36.535653][info]   - Writing texture file: c:/3DDev/Dickens/MeshroomCache/Texturing/2c32d09665a7bf8191cec4bc3b814ca11ff84d2d\texture_1001.png
[10:52:37.611074][info] Task done in (s): 16.943000

Answered by natowi

Jan 16, 2023

Take a look at https://github.com/alicevision/Meshroom/wiki/Texturing-after-external-re-topology

Did you rotate and export your model with this rotation from Maya?

View full answer

natowi · 2023-01-16T21:21:07Z

natowi
Jan 16, 2023
Collaborator

Take a look at https://github.com/alicevision/Meshroom/wiki/Texturing-after-external-re-topology

Did you rotate and export your model with this rotation from Maya?

1 reply

retsyn Jan 16, 2023
Author

Ah ha-- I thought I accounted for this, but it seems I'm incorrect. I knew and realized they must be in the same spot for the projection to work correctly. My intent was to move it while preserving the transform data, so I could move it back into place accurately. Somehow I messed this up, and I confirmed they aren't in the same spot.

Since I just confirmed it's got a differing transform, your guess is very likely correct!

Thanks for your fast response. I'll be more careful!

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When replacing .obj after retopo, all cameras are discarded #1870

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When replacing .obj after retopo, all cameras are discarded #1870

retsyn Jan 16, 2023

Replies: 1 comment · 1 reply

natowi Jan 16, 2023 Collaborator

retsyn Jan 16, 2023 Author

retsyn
Jan 16, 2023

Replies: 1 comment 1 reply

natowi
Jan 16, 2023
Collaborator

retsyn Jan 16, 2023
Author