Software used recently:
<blockquote>
<div>Openscad
Babylon.js
Threejs
Blender
FilterForge
und much more</div></blockquote>
<blockquote>BPRComposer V1.00 released.
<img class="alignnone size-full wp-image-546" src="http://johann.langhofer.net/wp-content/uploads/2017/08/screen4.jpg" alt="screen4" width="1492" height="839" />
<a href="http://johann.langhofer.net/PBRComposer">LiveDemo (click 'Load' to recall presets)</a>
<a href="https://github.com/androdlang/PBRComposer">Project on GitHub</a>

<img class="alignnone size-full wp-image-547" src="http://johann.langhofer.net/wp-content/uploads/2017/08/screen6.jpg" alt="screen6" width="1996" height="476" />
<img class="alignnone size-full wp-image-549" src="http://johann.langhofer.net/wp-content/uploads/2017/08/screen10.jpg" alt="screen10" width="2720" height="470" />
<img src="http://johann.langhofer.net/wp-content/uploads/2017/08/demos.jpg" alt="demos" width="2100" height="2800" class="alignnone size-full wp-image-564" />
</blockquote>
<blockquote>The following image was modeled with Blender, textures were generated with FilterForge 6.0 and rendered with Babylon.js (right click for better resolution)
<img class="alignnone size-full wp-image-531" src="http://johann.langhofer.net/wp-content/uploads/2017/08/amboss.jpg" alt="amboss" width="1372" height="799" />

<a href="http://johann.langhofer.net/candle/">Candles realtime simulation with pixi.js </a>
<img class="alignnone size-medium wp-image-509" src="http://johann.langhofer.net/wp-content/uploads/2017/03/screen-300x257.jpg" alt="screen" width="300" height="257" /></blockquote>
<blockquote><a href="http://johann.langhofer.net/escher/mirrorcubes.html">Mirror-Cubes </a>
<img class="alignnone size-medium wp-image-499" src="http://johann.langhofer.net/wp-content/uploads/2016/04/screen-300x207.jpg" alt="screen" width="300" height="207" /></blockquote>
Useful links:
<a href="http://thebookofshaders.com/">the book of shaders</a>
<a href="http://editor.thebookofshaders.com/">EDITOR the book of shaders</a>
<a href="http://www.cdglabs.org/Shadershop/">shadershop</a>
<a href="http://www.iquilezles.org/">!!iquilezles!!</a>