62486c6e7c
FIX: Fix possible division by zero
...
- closes https://github.com/assimp/assimp/issues/4819
2022-12-02 09:24:51 +01:00
f578b15759
Merge branch 'master' into explspec
2022-11-30 14:03:09 +01:00
7d06d798af
[BlenderDNA.h] Declare explicit specializations
...
It is an ODR violation to use a template specialization for which an
explicit specialization is defined somewhere whose declaration is not
visible at the point of use.
Found via clang's -Wundefined-func-template warning.
2022-11-29 18:38:33 +00:00
8fb7ba3444
Merge branch 'master' into modernize-smartptrs-literals
2022-11-29 09:58:17 +01:00
5689ac7869
Add overfolow check for invalid data.
...
- closes https://github.com/assimp/assimp/issues/3422
2022-11-22 10:50:52 +01:00
1d1cd93371
Merge branch 'master' into KHR_materials_emissive_strength
2022-11-21 20:55:13 +01:00
08f2f0f82f
Don't hide out-of-memory during FBX import
2022-11-18 13:50:33 +01:00
95d98ec98b
fixed indentation error
2022-11-08 20:55:20 +02:00
49bc22ddb5
Merge branch 'master' into KHR_materials_emissive_strength
2022-11-08 20:51:20 +02:00
3730b7414f
Use make_shared in IFCBoolean
2022-11-08 11:30:53 -05:00
d635bc6914
Fix some indentation
2022-11-08 11:19:12 -05:00
ccfb175460
Apply various clang-tidy checks for smartprs and modern C++ types
2022-11-08 11:03:55 -05:00
97cb1c6b15
Fix perfect fowards
2022-11-07 11:01:16 -05:00
5a0df03d2b
Fix another missing move in glTFCommon.h
2022-11-07 09:34:00 -05:00
945d93b46a
fixed indentation
2022-11-04 09:37:28 -07:00
852ea8325c
Added support for KHR_materials_emissive_strength
...
according to spec https://github.com/KhronosGroup/glTF/tree/main/extensions/2.0/Khronos/KHR_materials_emissive_strength
2022-11-03 23:11:21 +02:00
899f8e1d17
Remove redundant ctor
2022-11-03 12:46:40 -04:00
02378b5e70
Add one more missing move
2022-11-03 12:36:58 -04:00
8da3d277c7
add missing std moves
2022-11-03 12:35:10 -04:00
99e515fbfd
Fix:Fix possible nullptr dereferencing + refactorings.
2022-10-29 17:08:26 +02:00
ac87b9ce7e
fixed error with trailing zero symbol as placeholder character
2022-10-19 09:30:32 +03:00
35136bc90c
Merge branch 'master' into master
2022-10-18 19:25:14 +02:00
07aef23d24
Fix: Add missing ahndling for double export in json
2022-10-18 19:05:04 +02:00
e17976e6e2
* fix bug reading ply file in case of presence of "end_header\n<BINARY_DATA>..." with <BINARY_DATA> starting by "\n"
2022-10-14 13:16:18 +02:00
e0fb1674d1
Merge branch 'clang-fix' of github.com:slinky55/assimp into clang-fix
2022-09-30 22:04:11 -04:00
38ccb7e6c9
Used sizeof for buffer sizes instead of hardcoding values
2022-09-30 22:03:59 -04:00
5f28370f7f
Merge branch 'master' into clang-fix
2022-09-30 21:57:32 -04:00
e2e45f7a14
Fixed issue with clang complaining about sprintf being depreciated
2022-09-30 00:34:33 -04:00
981677d4b9
Merge branch 'master' into MakeFBXParserResilientToMissingStreams
2022-09-30 00:13:45 +02:00
f6a590065c
Prefix symbols from stb_image.h
...
This makes it possible to link assimp statically into an executable with
another static library that includes stb_image.h without hiding its
symbols.
2022-09-23 04:08:21 +03:00
22494bde17
Don't include stm_image implementation if using stb library from Hunter
...
Hunter compiles its own stb library binaries. Currently a second copy is
compiled by defining STB_IMAGE_IMPLEMENTATION in Assimp.cpp. This may
cause hard to understand bugs if this compiled copy ever becomes
different from what Hunter supplies.
2022-09-23 04:08:20 +03:00
7eb9edf0b9
Make FBX parser resilient to missing data streams
2022-09-21 11:45:54 +02:00
6415c0bfc9
FIX: Use attribute to fix warning.
2022-09-20 21:39:09 +02:00
1f61f0c3de
FIX: Caculate buffer end pointer after initing all attributes
2022-09-20 21:35:44 +02:00
f1766c4bd5
FIX: Fix head overflow in MD5-parser.
2022-09-20 21:03:58 +02:00
b3c7bdbdd6
Add check for wall switch from cmake
2022-09-17 18:16:42 +02:00
e4c77aa4fa
Fix: Use ASCII treeview in assimp-cmd.
2022-09-16 21:55:14 +02:00
20755f4200
Perfect forward val to utMaybe
2022-09-09 10:55:45 -04:00
ad1d0fcb45
Merge branch 'master' into kimkulling/cleanup_after_review
2022-09-08 19:09:49 +02:00
3af53a42aa
Fix typo
2022-09-08 19:06:05 +02:00
fff977c0b5
Fix review findings.
2022-09-08 18:54:08 +02:00
4c9d270a5e
-Vertex export fix
2022-09-07 23:10:31 +02:00
8895ecf243
Merge branch 'master' into kimkulling/cleanup_after_review
2022-09-07 21:26:54 +02:00
362ff08855
Add doc + small unittest
2022-09-07 21:25:46 +02:00
d15b4ad7ef
add missing light data to assbin import/export
2022-09-05 16:09:24 +02:00
2a667cc637
Merge branch 'master' into patch-1
2022-09-04 09:52:42 +02:00
411171fa45
Apply some more modernize-use-emplace
2022-09-02 11:20:02 -04:00
e3b01e10db
apply fixes to more headers
2022-09-01 12:28:45 -04:00
4c6652f5b0
Add a handful of missing fixes
2022-09-01 11:37:53 -04:00
a22aa75bca
fix vertices being joined duplicating weights
...
This bug causes weights to duplicate, i.e. one bone will have several (equal) weights assigned to the same vertex - which then has the potential to cause even bigger problems when combined with `LimitBoneWeightsProcess`.
2022-08-31 22:27:34 +02:00
f527e56f22
Merge branch 'master' into explicitly-default-dtors
2022-08-30 22:21:06 +02:00
80ae9afe4e
Add missing documentation.
2022-08-30 21:55:52 +02:00
25d7510b8c
Merge branch 'master' into kimkulling/cleanup_after_review
2022-08-29 22:17:39 +02:00
e34becff62
Enable portable linkage to fix build
2022-08-29 11:43:32 +02:00
0571ee21fb
Introduce unittest for BaseProcess.
2022-08-28 20:58:52 +02:00
02e6c425f9
Fix ordering of initalizer list
2022-08-27 15:20:53 +02:00
e4c383324a
Use string for constexpr
2022-08-27 15:11:54 +02:00
14186bcd6b
Code cleanup and some new unittests for edgecases.
2022-08-27 14:07:45 +02:00
9cd723e282
Wrong object is created here!
...
If I'm not mistaken. Because this is originally push_back(aniMeshVertex) instead of push_back(v).
And the fact that aniMeshVertex is just getting created and destroyed for nothing.
It need to be replaced with this then? A Clang-tidy syntax to create the same aniMeshVertex.
I found this in pull request #4527 I think it may need to be reviewed too.
2022-08-26 19:12:11 -04:00
e93fa6699a
Manually fix up 100 more instances where it should be defaulted
2022-08-25 12:20:13 -04:00
6fa21dcc6e
Explicitly default all empty dtors
2022-08-25 11:32:59 -04:00
2b30b7e062
Merge branch 'master' into skylion007/modernize-use-emplace
2022-08-24 11:48:30 +02:00
659195d852
Fix the fixme
...
- Based on the implementation in top of the last one I guess I know how to fix that.
- Replacing push_back by emplace_back
2022-08-24 11:17:10 +02:00
0d8723a3eb
Add FIXME comment
2022-08-24 10:43:40 +03:00
654ae3af4e
Fix out of bounds access in X3D loader
2022-08-24 10:42:01 +03:00
25add7baa2
Merge branch 'master' into skylion007/modernize-use-emplace
2022-08-23 15:14:48 -04:00
87f601531c
Merge branch 'master' into master
2022-08-23 21:14:45 +02:00
b176061c41
Remove extra space in emplace insertions
2022-08-23 11:46:30 -04:00
27edb43600
Apply modernize-use-emplace clang-tidy rule
2022-08-23 11:41:49 -04:00
f890bc791f
Fix out of bounds write
2022-08-23 14:38:27 +03:00
68bc6a06b9
Use unique_ptr for aaiBones instead of explicit delete[]
2022-08-23 14:17:56 +03:00
03397d42e2
Use unique_ptr for aaiFaces instead of explicit delete[]
2022-08-23 14:15:06 +03:00
795c0abcc8
Apply modernize-loop-convert to the simplified loop
2022-08-23 14:10:23 +03:00
1ca44acebc
Simplify a for loop
2022-08-23 14:10:23 +03:00
712671e81a
Apply modernize-loop-convert again
2022-08-23 14:10:20 +03:00
5f28c51c03
Apply clang-tidy modernize-loop-convert transformation
2022-08-23 13:59:42 +03:00
2013ae114a
[WIP] Use ai_Real to write correct accuracy
...
- closes https://github.com/assimp/assimp/issues/4676
2022-08-18 17:41:07 +02:00
4c143eb581
Merge branch 'master' into master
2022-08-17 12:01:44 +03:00
1c59de42fc
Make some blender fields warn if missing instead of error
2022-08-17 11:42:32 +03:00
d2dc0401c3
Use weak pointer for ModifierData prev to avoid memory leak
2022-08-17 11:42:32 +03:00
30555282fe
Use weak pointer for ElemBase last to avoid memory leak
2022-08-17 11:42:32 +03:00
56b6446913
Use weak pointer for MirrorModifierData mirror_ob to avoid memory leak
2022-08-17 11:42:32 +03:00
90d1464405
Remove set but unused variables
2022-08-17 11:42:32 +03:00
2e64880abf
Inherit SubsurfModifierData and MirrorModifierData from SharedModifierData
...
This makes the cast in BlenderModifierShowcase::ApplyModifiers work
correctly and not invoke UB.
2022-08-17 11:42:32 +03:00
e43e3e11b9
Move SharedModifierData definition to BlenderScene.h
2022-08-17 11:42:32 +03:00
2c1943cd10
Improve BlenderDNA error message
2022-08-17 11:42:32 +03:00
89c4640744
Merge branch 'master' into master
2022-08-16 20:53:45 +02:00
d469c7b161
Remove exception on glTF 2.0 loading
2022-08-16 15:52:43 +03:00
baf14f6c16
Merge branch 'master' into master
2022-08-12 14:09:04 +02:00
4b85eb59c2
Fixes Heap-buffer-overflow READ in Assimp::ASE::Parser::ParseLV1SoftSkinBlock
2022-08-10 15:30:07 +01:00
253f8bfa62
Use unqualified uint32_t everywhere in FBXBinaryTokenizer
...
The use of qualified std::uint32_t requires including <cstdint> instead
of <stdint.h> on some implementations, and that breaks the build of Qt 6
on GCC 13. Just use the unqualified name everywhere.
2022-08-09 01:54:31 +03:00
5084a4d155
Use [[fallthrough]]; to mark whished fallthroughs
...
- closes https://github.com/assimp/assimp/issues/4654
2022-08-05 20:49:37 +02:00
eac0876c9b
Refactoring: Use correct prefix for attributes in ObjImport.
2022-07-31 20:54:58 +02:00
dddfb74902
Fix another mem-leak
2022-07-31 13:37:42 +02:00
c349035cd1
Fix face memleak.
2022-07-31 12:10:43 +02:00
85f86ec076
Revert using face as pod type
2022-07-30 21:52:33 +02:00
0513eff44f
Merge branch 'master' into kimkulling/waveform_obj_optimizations
2022-07-30 13:15:42 +02:00
f6bcb160d0
Improvements of obj-parsers.
2022-07-30 12:58:09 +02:00
340d800739
Merge branch 'master' into master
2022-07-29 20:42:56 +02:00
4f6640278a
Merge branch 'master' into fix/collada_parser_sid
2022-07-29 19:17:43 +02:00
b0210cb3cf
Merge branch 'master' into patch-1
2022-07-29 17:48:14 +02:00
7c75a4c59b
Merge branch 'master' into master
2022-07-24 12:31:36 -07:00
73542f3830
Merge branch 'master' into patch-2
2022-07-24 12:11:18 +02:00
f07bc2c5b9
Merge branch 'master' into patch-3
2022-07-18 15:19:27 +02:00
05ececc387
Merge branch 'master' into patch-4
2022-07-18 14:06:29 +02:00
9ddc3a64d7
Fixes Crash in Assimp::ObjFileMtlImporter::getFloatValue
2022-07-16 13:55:08 +01:00
772cfdc757
Fixes Heap-buffer-overflow in Assimp::ObjFileParser::getFace
2022-07-16 13:50:54 +01:00
94c0e9d890
Fixes Heap-buffer-overflow in std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<ch
2022-07-16 13:48:39 +01:00
a4274930e4
Fixes Heap-use-after-free in Assimp::DXFImporter::ExpandBlockReferences
2022-07-16 13:46:50 +01:00
0c07ea7c71
Fixes Heap-buffer-overflow in SuperFastHash
2022-07-16 13:44:46 +01:00
684909a691
Fix comments on PR
...
1) Use default instead of empty destructor
2) Remove debug code
2022-07-09 17:23:40 +02:00
3e424f8119
Merge branch 'assimp:master' into master
2022-07-09 17:17:01 +02:00
6ad8ea395a
Merge branch 'master' into fix_stl_for_over_4GB
2022-07-09 09:58:10 +02:00
e63426b89c
Fix collada parser fails on Mixamo exports
2022-07-08 23:42:41 +02:00
3890b5dff5
Add missing = operator
...
implicit assignment operator is depricated, these classes were missing
explicit definitions of this operator.
It is causing warnings, specifically -Werror=deprecated-copy
2022-07-08 18:16:02 +02:00
c3a89fd2d0
Fix non virtual destructor use
2022-07-08 18:16:02 +02:00
ae276987a0
Remove unnecessary const qualifiers
...
These changes are part of enable -Wall, this specific changes are for
-Werror=ignored-qualifiers
2022-07-08 18:16:02 +02:00
a10abe0283
Add fallthrough comment to switch case
...
This allows gcc to identify intentional fallthroughs, which are part all
-Wall. Specifically -Werror=implicit-fallthrough
2022-07-08 18:16:02 +02:00
8e062792cd
Build fix for compiling against minizip.
2022-07-08 12:46:27 +01:00
c23146bb20
Use size_t for the file size in cpp file
...
This pointer juggling in combination with STL files >4GB caused some nasty illegal memory access bugs here. So let's fix it.
2022-07-08 10:26:03 +02:00
c5dfcac08a
Update D3MFOpcPackage.cpp
2022-07-08 10:25:40 +02:00
24d110199a
Use size_t for file size instead of unsigned int
...
This is one step to help us open files with more then 4 GB size.
2022-07-08 10:19:50 +02:00
e254f80a3a
Fix memory leak in D3MFOpcPackage
...
- closes https://github.com/assimp/assimp/issues/4628
2022-07-08 10:17:11 +02:00
e59b8fb448
Fix typo
2022-07-08 09:50:04 +02:00
70b2db19a8
Remove assertion test
...
- Code cleanup
- closes https://github.com/assimp/assimp/issues/4626
2022-07-08 09:47:33 +02:00
e9b08f35b2
Merge branch 'master' into master
2022-07-07 13:21:08 +02:00
77a2cdee76
Fix texture fetch for embedded textures in 3mf-files.
2022-07-06 20:59:42 +02:00
eeae6eac26
Update Q3DLoader.cpp
2022-07-05 23:01:18 +02:00
2d994e1a28
Fix possible bad_alloc exception for invalid file
...
- Fuzzer finding
- closes https://github.com/assimp/assimp/issues/3417
2022-07-05 22:50:54 +02:00
90b75cd6e7
Merge branch 'master' into fix/collada_empty_animation_name
2022-07-05 20:39:19 +02:00
5bce9e8ce5
Update MDLMaterialLoader.cpp
2022-07-05 20:09:16 +02:00
a6b1a35748
Try to fix issue 4238
...
- Fix possible nullptr dereferencing.
- closes https://github.com/assimp/assimp/issues/4238
2022-07-05 20:05:10 +02:00
6d26e91fc1
Merge branch 'master' into fix/collada_empty_animation_name
2022-07-05 09:28:39 +02:00
636d8bffe5
Merge branch 'master' into kimkulling/fix_memleak_in_xmlparser
2022-07-02 21:32:24 +02:00
9063216893
Fix a memory leak
2022-07-02 21:21:31 +02:00
55625d1af5
Use mingw.include
2022-06-30 20:58:34 +02:00
0924c4710b
Fix nested animation name being lost in Collada
...
Signed-off-by: Luca Della Vedova <luca@openrobotics.org>
2022-06-29 11:09:54 +08:00
d3c8201614
Fix token match string checks.
2022-06-28 20:31:03 +02:00
5598356157
Merge branch 'master' into master
2022-06-24 09:56:09 +02:00
855537f232
Merge branch 'master' into master
2022-06-24 09:04:37 +02:00
be2e6a1b24
Merge branch 'master' into w32fix
2022-06-24 08:31:41 +02:00
b392ff5ad1
Merge branch 'master' into otore19/sandbox
2022-06-21 21:34:50 +03:00
4f06c41802
Fix: Collada header updated
2022-06-21 21:08:11 +03:00
bca5650578
fix windows 32 bit builds
2022-06-21 13:40:49 +02:00
fff74a4ac0
Merge branch 'master' into patch-2
2022-06-21 13:39:23 +02:00
c2060a1f7e
Deletion: Removed unnessary header
2022-06-20 23:48:00 +03:00
1b53f41787
Feature: Utilizes removeEmptyBones flag for Collada
2022-06-20 23:46:29 +03:00
2486a681c1
Remove unused variable.
2022-06-20 21:07:34 +02:00
487a9aca2f
Add support for GCC v12
2022-06-16 19:23:55 -04:00
079b7deb33
Merge branch 'master' of https://github.com/assimp/assimp into fix/collada_parser_sid
2022-06-13 10:20:46 +08:00
ce8081bd0a
Merge branch 'master' into master
2022-06-13 00:15:31 +04:00
5adea2dbcf
Merge branch 'master' into kimkulling/create_skeleton_data_issue_4015
2022-06-11 21:40:44 +02:00
aaa19903c6
Fix merge conflicts
2022-06-11 18:50:18 +02:00
02b0c89fa4
Fix usage of validation
2022-06-08 00:10:13 +02:00
4fb5cf4ba6
Fix possible nullptr exception
...
- closes https://github.com/assimp/assimp/issues/4418
2022-06-07 23:33:56 +02:00
e7daa5759b
Merge branch 'master' into master
2022-06-07 22:01:00 +02:00
aca02190a7
Merge branch 'master' into fix_FBXConverter_double_precision
2022-06-06 10:01:13 -04:00
680ea6b0e0
Merge branch 'master' into fix_fbx
2022-06-03 11:21:41 +02:00
39a4627519
Merge branch 'master' into kimkulling/create_skeleton_data_issue_4015
2022-06-02 21:47:29 +02:00
638fda66da
Merge branch 'master' into issue4516
2022-06-01 20:47:13 +02:00
96d2052ed0
Merge branch 'master' into fix_fbx
2022-06-02 02:31:32 +09:00
03532eaec3
Merge branch 'master' into msvcfix
2022-06-01 17:11:06 +02:00
17289985a4
Update comment
2022-06-01 12:45:40 +02:00
02e0d1d05c
Remove dllexport tags from static library builds.
2022-06-01 12:26:04 +02:00
681eb3e91e
Fix Import a specific FBX model
2022-06-01 17:41:27 +09:00
b7a70ac707
Add compiler switgxh for using static linkage for std_image
2022-05-31 23:24:31 +02:00
05867f4752
Merge branch 'kimkulling/link_stb_image_statically_issue_4467' of https://github.com/assimp/assimp into kimkulling/link_stb_image_statically_issue_4467
2022-05-31 20:08:39 +02:00
de4fe01c94
Fix clang build
2022-05-31 20:08:26 +02:00
e28becbaf5
Update Assimp.cpp
2022-05-31 19:17:08 +02:00
e5cd85ac0c
Update M3DWrapper.h
2022-05-31 19:16:46 +02:00
4b25eb6c4b
Update Assimp.cpp
2022-05-31 19:09:22 +02:00
c0e141a6a9
Update StbCommon.h
2022-05-31 19:08:46 +02:00
b00923ebcd
Update Assimp.cpp
2022-05-31 19:08:29 +02:00
4e22635406
Update PbrtExporter.cpp
2022-05-31 18:31:19 +02:00
472e15c405
Merge branch 'master' into kimkulling/link_stb_image_statically_issue_4467
2022-05-31 17:47:43 +02:00
234e55fbb1
Use size_t
2022-05-31 07:29:54 +02:00
f612865f22
fix msvc warnings-as-errors
2022-05-29 01:35:48 +02:00
26233f1b77
Fixed FBXConverter build error (warning as error) when ASSIMP_DOUBLE_PRECISION is defined
2022-05-26 15:06:23 -04:00
ddc63119b5
Using hex instead of decimal
2022-05-26 10:11:30 +02:00
efbcdccac9
Fix GNUC check on Windows (2nd attempt)
2022-05-25 09:18:42 -07:00
affa85a36b
Fix GNUC check on Windows
2022-05-25 07:59:01 -07:00
7ce447294f
I ran into an error while processing colored binary stl. Just a type but
...
better be fixed.
2022-05-24 19:47:24 +02:00
6b0a7a21a4
Store SID in SID field
...
Signed-off-by: Luca Della Vedova <luca@openrobotics.org>
2022-05-23 14:24:56 +08:00
ed3e218550
Bugfix: fix not initialized member attributes
2022-05-21 19:08:43 +02:00
002d6dc016
Inifinite loop on bad import files
...
I had an import file that caused an infinite loop. I don't exactly know how this algorithm works here but maybe we should change it more.
Probably calculate the amount of steps and chop linear.
2022-05-18 15:22:11 +02:00
58af6ba9db
Fix compier warning
2022-05-14 09:59:07 +02:00
deb1698cbe
Fixed formattings.
2022-05-14 09:56:38 +02:00
78dbef8711
Merge branch 'master' into master
2022-05-13 20:15:55 +01:00
36d730fc4e
add more comments
2022-05-13 20:10:19 +01:00
5d8b1649a4
Revert "use unordered_set to accelerate the vertix merging"
...
This reverts commit 0ffb91fbf1
2022-05-13 19:59:16 +01:00
0ffb91fbf1
use unordered_set to accelerate the vertix merging
2022-05-13 18:14:49 +01:00
9e4fc9a40c
Merge branch 'master' into assimp_resource
2022-05-12 10:38:03 +02:00
0f780fe141
Merge branch 'master' into MMD_Fixes
2022-05-12 10:00:00 +02:00
787fcc160a
Clang-Tidy performance fixes
2022-05-11 14:03:45 -04:00
85d47dc359
Merge branch 'master' into assimp_resource
2022-05-07 18:03:44 +04:00
f86700f6f4
Merge branch 'master' into assimp_resource
2022-05-04 02:12:08 +04:00
936cc791f2
Move `ASSIMP_WARNINGS_AS_ERRORS` check
2022-05-03 13:01:20 -07:00
e97e7574ae
Merge branch 'master' into assimp_warnings_as_errors
2022-05-03 23:24:52 +04:00
3dd2dbd916
Merge branch 'master' into master
2022-05-03 17:19:06 +02:00
1d3d5c4bb6
Rename TextureTypeToString() to aiTextureTypeToString()
...
Closes: https://github.com/assimp/assimp/issues/4493
2022-05-01 13:27:42 +02:00
Kim Kulling
Thomas Köppe
Jan Krassnigg
Adam Beili
Aaron Gokaslan
Adam Beili
Kim Kulling
Sergey
François Lozes
slinky55
slinky55
Povilas Kanapickas
Florian Born
Kim Kulling
HiMemX
Gargaj
J.G.Adams
Turo Lamminen
Aaron Gokaslan
vkaytsanov
vkaytsanov
Aleks L
Ville Voutilainen
Engin Manap
Robert Osfield
tanolino
Luca Della Vedova
Onur Berk Töre
kovacsv
PercentBoat4164
hgdagon
Matthew Clendening
nsg
Underdisc
Piroska Gabor
motazmuhammad
IOhannes m zmölnig