Genetica Viewer
Genetica Viewer is a free seamless texture rendering application that allows artists to make use of textures that are saved in Genetica's powerful texture format. Genetica Viewer is capable of rendering textures at any resolution up to 3,000 x 3,000. ... Genetica Viewer can make a number of adjustments to each material, such as re-randomizing the texture, zooming the texture while maintaining seamless edges, and color adjustments. ... With hundreds of included textures of all types, automatic seamlessness, resolution-independence, and unprecedented flexibility, Genetica Viewer will help...
http://www.spiralgraphics.biz/viewer/Genetica_Viewer_Setup.exe - 3Mb - Download - Screenshot

Texture Maker
Texture Maker is a seamless texture generator and designer. The application contains everything needed to create seamless textures for use in 3D rendering packages, game development, web graphics, image and video editing. Texture Maker can create procedural and hand painted textures from... The animation recorder can process and create texture sequences. ... Texture Maker features standard operations like filters, color correction, distortion and emboss effects, that are designed to work with seamless textures.
http://www.texturemaker.com/getfile.php?file=TextureMaker3Setup.exe - 4Mb - Download - Screenshot

Wood Workshop
The Wood Workshop is a free seamless texture editor that specializes in the creation of seamless wood textures. It helps 3D artists of all types quickly and easily take their wood and floor textures to a new level of realism. Over 100 fully editable preset textures come included in the Wood... The program contains well over 200 sliders and selectable options, making it the most powerful wood texture generator you'll ever use. ... Download now and see why this application has taken the 3D graphics community by storm!
http://www.spiralgraphics.biz/Wood_Workshop_Setup.exe - 2Mb - Download - Screenshot

Genetica
Genetica 2 is an innovative node-based seamless texture editor for professional 3D artists that comes with over 500 realistic seamless texture presets. New in this version is a Substance Lab that helps streamline the process of creating new textures from scratch, a new Weather Lab that makes it... With over 500 finished texture presets of all types, automatic seamlessness, resolution-independence, and unprecedented flexibility, Genetica 2 will help you revolutionize your textures. ... Also comes in a Pro edition with additional functionality.
http://www.spiralgraphics.biz/Genetica_2_Setup.exe - 5Mb - Download - Screenshot

Illusionae
RenderSoft Illusionae is a powerful texture-generation engine for making realistic 3D textures. It creates textures using an algorithmic approach, manipulating formulae and displaying them in the graphical form. It gives you the freedom to explore the generated textures, and change them... Because of the mathematical nature of the textures, RenderSoft's powerful engine is able to provide an unlimited number of possibilities.
http://www.atomixbuttons.com/illusionae/rsl.zip - 450Kb - Download - Screenshot

HyperTyle
HyperTyle is a sophisticated filter plugin for generating texture, surface, paint, erosion, transparency, edge, frame and shadow effects. These main effects are based on seamless textures, so there are unlimited variations possible. Additionally there are also zoom, rotation, metal, chrome,... The dialog of HyperTyle is skinned and consists of a large preview on the left side and a tab sheet control with all filter parameters on the right side. ... HyperTyle is fairly easy and intuitive to use. ... A preset feature lets you save effect settings and reuse them later.
http://graphicsgalaxy.com/products/HyperTyle10DEMO.exe - 4Mb - Download - Screenshot

DrapeFX Pro
DrapeFX PRO is the professional version of our DrapeFX software solution allowing you to drape color and texture into your graphic files. When you wish to create realism in your results and achieve professional quality images, DrapeFX PRO will come to your rescue. ... Where you are unable to achieve results of naturalness and realism, DrapeFX PRO quickly and seamlessly drapes color and texture by using a unique and powerful graphic algorithm to help you to create a new image from your existing one.
http://www.drapefx.com/fromdev/DrapeFXInstall.exe - 2Mb - Download - Screenshot

Textureworks
TextureWorks v1. 0 is an awesome collection of natural textures. Hundreds of commercial-quality brick, water, sky, stone, cloth, wood and marble textures and surfaces are included in the package. There are many different categories and whether your working on the next killer game or simply... Registration comes with two free bonus products and access to our large Sound Effects Library containing everything you need to bring your games to life!.
http://www.spriteworks.com/texworks.zip - 575Kb - Download - Screenshot

AbszOrb 3D
AbszOrb 3. 0 is a fully interactive real-time 3D game, screensaver, simulation in which users are able to texture, arrange and otherwise manipulate universes of spinning balls. AbszOrb is basically a fun and simple example of a particle system in physics. ... With the brand new free version, you have full flight control to soar through your universe or particle system and with the paid version you can texture orbs and arrange them in your universe. ... For example, you can texture the balls with your own head and pass universes of "you" along for them to dote on.
http://www.vibrant3d.com/installers/AbszOrbInstaller.exe - 3b - Download - Screenshot

Panorama - Terrain Editor
Panorama is a terrain or landscape editor, where beautiful multitextured landscapes are made easy. Landscapes can be created, painted, lightmapped and exported. The program features: Easy to use windows interface Create nice looking terrains in no time Up to 8x8 64x64 segments terrains (huge... obj) formats Add any texture layer, to allow for multitextured terrains Set uv texture scales for any of the texture layers Paint textures with a smooth brush Paint texture layers with colors, to have virtual unlimted texture combinations Square and oval brush shapes Draw and drag sculpting...
http://www.gameart.dk/panorama/PanoramaDemoSetup.exe - 5Mb - Download - Screenshot