(Ctrl + F can help you :])
Tips:
*~ When you make a new mesh, don't forgot: the texture sizes supported are 1, 2, 4 ,8, 16, 32, 64, 128, 512 and 1024 pixels. Invalid sizes of textures can result in black/brown meshes in game!
No-tutorial, but they're useful links:
Sims 3 Object Catalog by TSRwiki
Meshing (and Milkshape): Troubleshooting & Tips by orangemittens(MTS)
About Smoothing Groups by Cyclonesue(TSR)
Assign mesh vertices to joints by Cyclonesue(TSR)
UV Mapping by Cyclonesue(TSR)
Unwrapping(UVmaps) by Cyclonesue(TSR)
UV maps size by Cyclonesue(TSR)
About textures for plants leaves by riccinumbers(TSR)
Some 3D modeling softwares
Tutorials:
Landscaping Mega Tutorial by Qbuilderz(MTS) with game/world tool
Modifying Recolorable Areas by Jynx(CustomSims3) with S3PE
How To Clone A Painting And Change the Texture by Xanathon(SimsWiki) with S3PE
Custom Paintings with EA Meshes by Vanilla Sim(TSR) with TSRW
Multicolor Makeup Tutorial by Gosik(TSR) with TSRW
Adding / Editing Slots by Flabaliki(TSSupply) with TSRW
Bone Assignments by Flabaliki(TSSupply) with milkshape
Quick Meshing: Advanced Steps by daluved1(TSSupply) with milkshape
In Depth Meshing (Part 1) by Flabaliki(TSSupply) with TSRW
In Depth Meshing (Part 2) by Flabaliki (TSSupply) with TSRW
Multi-Part Meshes by daluved1(TSSupply) with milkshape
Quick Meshing Part 1 by daluved1(TSSupply) with milkshape and CAStextureUnitool
Quick Meshing Part 2 by daluved1(TSSupply) with milkshape and CAStextureUnitool
Texturing Your "Quick Mesh" by daluved1(TSSupply) with milkshape and CAStextureUnitool
Meshing in TSR Workshop by Flabaliki(TSSupply) with TSRW
DDS Files for plant meshing by riccinumbers(TSR) with TSRW
In Depth Clothing Re-Texturing by Sinastra(TSR) with TSRW
Creating Paintings with Multiple Images Part1 by cmomoney(MTS) with S3PE
Creating Paintings with Multiple Images Part2 by cmomoney(MTS) with S3PE
Making of : Texturing and Mapping in details by anouschka(MTS) with milkshape and TS3PE
TS3 Basic HowTo Mesh Guide by EllaCharm3d(MTS) with S3OC
Object Creation Part 1: The Beginner's Guide To by riccinumbers(TSR) with TSRW(need download, PDF file)
Object Creation Part 2: Object Textures by Cyclonesue(TSR) with TSRW(need download, PDF file)
basic hair meshing by ulker(TSR) with TSRW
Autogenerate Sunshadows Tutorial by Murano(TSR) with TSRW
How to create a RGBA stencil mask by Murano(TSR) with Photoshop
A Beginners Guide on How to Mesh for The Sims 3, From Start to Finish (inc. pics) by Flabaliki(MTS) with S3OC and Milkshape
Preparing Mesh Files for Workshop by Jonesi(Black Pearl Sims) with Milkshape and TSRW
Sims 3 Pose Creation or [LINK](SimsWiki) with Milkshape or Blender, AnimTool and S3PE
How to make your own patterns for Sims 3(KelinPaige) with Paint.NET and Delphys Pattern Maker
Sims 3 Create A Pattern Tool Tutorial(joshesully) with Create a Pattern Tool
Editando/Criando Objetos no TSR Workshop by Nandonalt(KachuSims) with TSRW and Milkshape
Utilizando a ferramenta Create-A-Pattern by ABProduções(KachuSims) with Create a Pattern Tool
Criando roupas e cabelos para o The Sims 3(Em Modelagem) by felipevip(KachuSims) with Milkshape and TSRW
Criando quadros no The Sims 3 by Nandonalt(KachuSims) with Adobe Photoshop, S3PE, S3OC
Criando Padrões - Iniciante - Photoshop by Nandonalt(KachuSims) with Adobe Photoshop and TSRW
