GeoGebra tool.

The GeoGebra tool is dynamic mathematics software for all levels of education that brings together geometry, algebra, spreadsheets, graphing, statistics and calculus in one easy-to-use package.
GeoGebra has become the leading provider of dynamic mathematics software, supporting science, technology, engineering and mathematics (STEM) education and innovations in teaching and learning worldwide.
You can find over 1 million free activities, simulations, exercises, lessons, and games for math and science!
This online tool can also be used offline with GeoGebra applications for iOS, Android, Windows, Mac, Chromebook, and Linux.
Read more at the official website.
This is a video tutorial about GeoGebra 3D with Augmented Reality (Quick Modeling Demo) from the official YouTube:

Google hidden tools and features.

This tutorial is about Google hidden tools and features.
Many of the tools and online games are hidden in the Google search area.
Open your browser and search this: 10 value spinner.
This will show a spinner and you can test it.
You can find into the bottom of this online tool many features: Flip a coin, Color picker, Rol a die, Metronome, Meditate and Calculator.
This is a screenshot with the 10 values Spinner tool.

The Kerkythea software.

The development team of the Kerkythea software comes with this intro:
Kerkythea is a freeware software that can produce high quality renders without spending a cent on software licensing. Kerkythea is using physically accurate materials and lights, aiming for the best quality rendering in the most efficient timeframe, with target to simplify the task of quality rendering by providing the necessary tools to automate scene setup, such as staging using the GL real-time viewer, material editor, general/render settings, editors, etc., under a common interface
This software is available for all major platforms Windows, Linux, and MacOSX.
The software supports the following 3D File Formats: 3DS, OBJ, XML (Native KT format) and KZX (Zipped KT XML format).
You can find many videos about Kerkythea created by Hipolito Rodrigues.
You can download it from the official webpage.
The software is easy to use.
Open your model with File - Open and use Render - Start to render the output.
The final Rendered Image can change it with some colors settings: Tone Map, Exposure, Gamma, Dark, and Bright.
The Sun & Sky Wizard tool lets you fix it by Location, Zone, Year, Month, Day and Hour, Minute, Second.
The last setting of this tool is Sky Type.
The model object can be translated and rotated it.
Each object can have materials with many basic features and can be imported just like mat.zip type file.
I found some bugs:

1. the texture preview did not follow the changes by size;
2. the texture working area is hard to use;
3. the tools for animation and brush is unfinished;
4. the render network tool is unfinished;

In conclusion, this software is 88% completed by the development team.

News : Black Desert Online with 7-Day Free Trial.

"it is just phenomenal" - mmorpg.com. Play the best MMORPG on PC today.
You can get a 7-Day Free Trial just try it here.
After you subscribe and login with your account then you can download it from here.
This is a video from the official youtube channel.

News : NeoAxis Build 2019.2.3 released today.

The new version of the NeoAxis Build 2019.2.3 was released today.
The SDK includes all features of the NeoAxis Engine.
The size of this download is 1.1 GB.
System requirements: Windows 10, 8, 7 64-bit. DirectX 11 graphics card.

• Materials have been improved.
• The tool for generation environment cube maps from source format has been added.
• Displacement mapping to materials has been added. Parallax Occlusion Mapping.
• Tone mapping screen effect has been improved.
• Mesh skinning on GPU.
• UI Editor now has all the necessary features. Resizing, step movement.
• UI Editor: Ribbon Tab.
• UI Editor: Small fixes.
• UIProgressBar.
• Built-in C# scripting improvements.
• Project settings have been updated.
• HDR texture format support.
• Import 3D models have been improved. Latest Assimp.

From old versions, you can use the C# programming language.
Read all info and features about this game engine here.

News: Construct 3 updated 5 hours ago.

Construct 3 is the best software to create games. Over 60,000 users monthly make & sell thousands of games globally.
This game engine is not free.
Included features:

• runs in your browser;
• works offline;
• auto updates;

Try it now on the official webpage.