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23. February 2019

It’s simply amazing the amount of free software available these days for game developers, and SculptGL is no exception.  It is a 3D sculpting application similar to ZBrush, Sculptris or Mudbox, but it runs entirely inside your browser (or locally via Electron if you prefer).  Features from SculptGL include:

  • Sculpting tools
    • Standard tools : Brush, Inflate, Smooth, Twist, Drag, etc
    • PBR Vertex Painting (color, roughness, metalness)
    • Alpha texture support for each tools
  • Multiresolution sculpting
    • Quad-tri Subdivison (catmull-clark/loop)
    • Reversion (compute opposite of subdvision if possible)
    • Navigating from low/high poly level subdiv will retain sculpting changes
    • keep UVs (both reversion and subdivison)
  • Voxel remeshing
    • Uses SurfaceNets meshing algorithm (produces quad-only mesh)
    • Uniform remeshing (quads will have the same size)
    • Can also create non-manifold vertex :(
    • In case of a non closed mesh, a naive holefilling algorithm is performed first
    • Deletes UV
  • Dynamic topology
    • Triangles only
    • Operates in real time
    • Local subdivision (create new triangles)
    • Local decimation (deletes triangles)
    • Deletes UV
  • Supports OBJ, PLY, STL import/export
    • Reads vertex color
    • Optimizes post and pre transform cache (tipsy algorithm)
  • Undo/Redo support

It is an open source MIT licensed project with the source available on Github.  Check out SculptGL in action in the video below.

GameDev News Art

20. February 2019

Finishing in hard cover form just in time for GTC 2019, NVidia and APress have team up to author Ray Tracing Gems, a book on real-time raytraced graphics development in the popular “Gems” format.  Even better, they are making digital chapters available as they are developed, free to those with a NVidia developer account (which is also free).  The chapters are distributed under the Creative Commons 4.0 International License and are available for download here.  Unfortunately Part 5 is currently missing and parts 6 and 7 are slated to be published later this week.

Here is the current table of contents from the RealTimeRendering homepage:

  • PART 1: RAY TRACING BASICS, editor: Chris Wyman
    • 1. Ray Tracing Terminology, by Eric Haines and Peter Shirley
    • 2. What is a Ray? by Peter Shirley, Ingo Wald, Tomas Akenine-Möller, and Eric Haines
    • 3. Introduction to DirectX Raytracing, by Chris Wyman and Adam Marrs
    • 4. A Planetarium Dome Master Camera, by John E. Stone
    • 5. Computing Minima and Maxima of Subarrays, by Ingo Wald
    • 6. A Fast and Robust Method for Avoiding Self-Intersection, by Carsten Wächter and Nikolaus Binder
    • 7. Precision Improvements for Ray/Sphere Intersection, by Eric Haines, Johannes Günther, and Tomas Akenine-Möller
    • 8. Cool Patches: A Geometric Approach to Ray/Bilinear Patch Intersections, by Alexander Reshetov
    • 9. Multi-Hit Ray Tracing in DXR, by Christiaan Gribble
    • 10. A Simple Load-Balancing Scheme with High Scaling Efficiency, by Dietger van Antwerpen, Daniel Seibert, and Alexander Keller
    • 11. Automatic Handling of Materials in Nested Volumes, by Carsten Wächter and Matthias Raab
    • 12. A Microfacet-Based Shadowing Function to Solve the Bump Terminator Problem, by Alejandro Conty Estevez, Pascal Lecocq, and Clifford Stein
    • 13. Ray Traced Shadows: Maintaining Real-Time Frame Rates, by Jakub Boksansky, Michael Wimmer, and Jiri Bittner
    • 14. Ray-Guided Volumetric Water Caustics in Single Scattering Media with DXR, by Holger Gruen
  • PART 4: SAMPLING, editor: Alexander Keller
    • 15. On the Importance of Sampling, by Matt Pharr
    • 16. Sample Transformations Zoo, by Peter Shirley, Samuli Laine, David Hart, Matt Pharr, Petrik Clarberg, Eric Haines, Matthias Raab, and David Cline
    • 17. Ignoring the Inconvenient When Tracing Rays, by Matt Pharr
    • 18. Importance Sampling of Many Lights on the GPU, by Pierre Moreau and Petrik Clarberg
  • PART 5: DENOISING AND FILTERING, editor: Jacob Munkberg
    • 19. Cinematic Rendering in UE4 with Real-Time Ray Tracing and Denoising, by Edward Liu, Ignacio Llamas, Juan Cañada, and Patrick Kelly
    • 20. Texture Level of Detail Strategies for Real-Time Ray Tracing, by Tomas Akenine-Möller, Jim Nilsson, Magnus Andersson, Colin Barré-Brisebois, Robert Toth, and Tero Karras
    • 21. Simple Environment Map Filtering Using Ray Cones and Ray Differentials, by Tomas Akenine-Möller and Jim Nilsson
    • 22. Improving Temporal Antialiasing with Adaptive Ray Tracing, by Adam Marrs, Josef Spjut, Holger Gruen, Rahul Sathe, and Morgan McGuire
    • 23. Interactive Light Map and Irradiance Volume Preview in Frostbite, by Diede Apers, Petter Edblom, Charles de Rousiers, and Sébastien Hillaire
    • 24. Real-Time Global Illumination with Photon Mapping, by Niklas Smal and Maksim Aizenshtein
    • 25. Hybrid Rendering for Real-Time Ray Tracing, by Colin Barré-Brisebois, Henrik Halén, Graham Wihlidal, Andrew Lauritzen, Jasper Bekkers, Tomasz Stachowiak, and Johan Andersson
    • 26. Deferred Hybrid Path Tracing, by Thomas Schander, Clemens Musterle, and Stephan Bergmann
    • 27. Interactive Ray Tracing Techniques for High-Fidelity Scientific Visualization, by John E. Stone
  • PART 7: GLOBAL ILLUMINATION, editor: Matt Pharr
    • 28. Ray Tracing Inhomogeneous Volumes, by Matthias Raab
    • 29. Efficient Particle Volume Splatting in a Ray Tracer, by Aaron Knoll, R. Keith Morley, Ingo Wald, Nick Leaf, and Peter Messmer
    • 30. Caustics Using Screen Space Photon Mapping, by Hyuk Kim
    • 31. Variance Reduction via Footprint Estimation in the Presence of Path Reuse, by Johannes Jendersie
    • 32. Accurate Real-Time Specular Reflections with Radiance Caching, by Antti Hirvonen, Atte Seppälä, Maksim Aizenshtein, and Niklas Smal

  • Once compiled the electronic version of the book will remain freely downloadable, although in what formats has yet to be determined.

    GameDev News

    19. February 2019

    A new game development related Humble Bundle, the Humble Fantasy GameDev Bundle has just gone live.  This bundle consists of thousands of art assets mostly with a fantasy RPG theme.  As always with Humble Bundles, a portion of your proceeds go to the creator, a portion go to the Humble team, a portion goes to charity and a portion can go to support this channel.

    Humble Bundles are always split into pricing tiers, although in this case the content is heavily loaded toward the top price tier of $20 USD.  If you buy the top tier, you get all of the assets below it.  The Fantasy GameDev bundle consists of:

    1$ Tier

    • Potion Icons
    • Game Chest
    • SpellBook Page 01
    • Wooden UI
    • Fantasy Badges
    • RPG Weapons Icons

    17.31$ Tier

    • TCG Card Design
    • Armor Icon Pack
    • Sci-Fi Skill Icon Pack
    • Engineering Craft Icons
    • Loot Icons
    • Fishing Icons
    • Flat Skills Icons
    • Survival Armor Icons
    • Resources Flat Icons
    • Mobs Avatar Icons
    • Character Avatar Icons
    • Magic Badges

    20$ Tier

    • Fantasy Icon Megapack
    • SpellBook Megapack
    • TCG Cards Pack
    • Action RPG Loot
    • Action RPG Armor
    • Fantasy Animate Avatars
    • RPG Class Badges
    • Western Icons
    • GUI Megapack
    • Monster Avatar Icons
    • Fantasy Characters
    • Fairytale Icons Megapack

    The bundle is available here while you can see the contents of the Bundle in the video below.  Unfortunately the license is not clearly stated, however the Humble team made the following tweet:


    GameDev News

    16. February 2019

    So many of the best games ever created use the Isometric graphic style.  Games such as Baldur’s Gate 1 and 2, Planescape Torment, Ultima 7, XCom and Diablo 1 and 2 are shining examples of games made in this style.  In this tutorial we show how you can easily create Isometric style maps using the excellent open source Tiled map editor.  We show how to import multiple tilesets, create an isometric tile map composed of multiple layers and how to define triggers and properties for use in your game.

    Resources Used/Mentioned in this Tutorial:

    Programming Design Art

    14. February 2019

    If you’ve found yourself looking for a dedicated and free 3D modelling application, look no further than Rocket 3F.  Available for Windows powered computers, Rcoket3F has all of the functionality you would expect from a modern 3D application, in a streamlined but well documented interface.  Rocket is based on nvil which was previously known as VoidWorld.  Rocket 3F is full functioning in it’s free form, with a premium version available with advanced customization abilities.

    Learn more about Rocket 3F in the video below:


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