Sundog Blog

Posted by Frank Kane on 31st October 2014

Sandstorm simulation now in SilverLining

Sandstorm in SilverLiningThe SilverLining Sky, 3D Cloud, and Weather SDK now features visual simulation of large dust storms, also known as a “haboob”. You’ll find a new SANDSTORM cloud type, and examples of using it in our sample code and in our documentation.

There is a new Sandstorm section in the resources/silverlining.config file, which allows you to adjust things like the color of the dust cloud, and the density and color of the fog within it. Although it uses the same technology as our cumulus clouds, it features the use of “soft particles” so the intersection of the dust cloud with the ground looks smooth.

Below is a short video showing an approaching sandstorm using SilverLining, and the decrease in visibility as it passes over the camera. We’ve heard from our military customers that simulating sandstorms is important for training purposes, and we hope this new capability of SilverLining proves useful for training scenarios.

Posted by Frank Kane on 31st October 2014

3000AD’s Line of Defense features Sundog Environmental FX

Triton and SilverLining in 3000AD's MMO Line of Defense3000AD has released their MMO Line of Defense under Steam’s Early Access Program. Line of Defense includes both our Triton Ocean SDK and our SilverLining Sky, 3D Cloud, and Weather SDK – and it looks great! 3000AD has taken advantage of pretty much every feature we have – multiple cloud types, dynamic time of day effects, and realistic water rendering for large and small bodies of water – even underwater effects.
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Posted by Frank Kane on 29th October 2014

Sundog Gets Involved with Space Research

PoSSUM team patchLately we’ve been donating time to Project PoSSUM. This NASA-funded project aims to launch citizen scientists to the upper mesophere on a XCOR Lynx spacecraft to collect data on noctilucent clouds, an elusive and mysterious cloud type found only at high latitudes, extremely high altitudes, and visible only under specific conditions. Little is known about these clouds, and this project aims to both learn more about them, and to make human spaceflight more accessible.

Our involvement has been in developing an add-on for the X-Plane flight simulator to accurately represent noctilucent clouds, which will be used for training potential astronauts for the actual mission. I’ve taken what little is known about these clouds from ground-based and NASA’s AIM spacecraft observations, and used these to make these clouds appear at the right time, altitude, and location. Their lighting is simulated by casting rays from the sun and handling the effects of forward scattering, and this allows you to identify the clouds from the ground, and then fly up through them in a simulated Lynx spacecraft, observe them from above, and return to the landing strip.

XCOR Lynx over Noctilucent clouds“These simulations will assist PoSSUM scientist-astronauts better identify noctilucent cloud structures of greatest scientific importance in the limited time available”, commented Project PoSSUM P.I. Jason Reimuller. “Sundog was able to quickly develop this software and we will work closely with them to mature the simulation”

We at Sundog believe strongly in the long-term importance of human spaceflight capabilities, and this project has presented a unique opportunity to apply our skills in cloud visual simulation toward this effort. We’re proud to be a part of it, and look forward to the first flights in 2016!

Posted by Frank Kane on 28th October 2014

Triton 3D Water for Unity Pro Updated

Ship buoyancy model powered by Triton for Unity ProWe’ve issued a new update for Triton for Unity Pro, incorporating all of the recent performance and visual quality improvements of the Triton Ocean SDK. 3D Water in Unity has never been this realistic before. Here’s a video showcasing how it looks, created entirely with Unity and unretouched.

In addition to much more realistic shading and lighting, we’ve added editor scripts to simplify the creation of standalone deployments that include Unity, as well as early support for the new Unity 5.0 release that’s still in beta. Be sure to read the documentation for Triton for Unity Pro to learn more – there’s a lot of depth to this asset and you do need to understand how to use it in order to get good results.

Posted by Frank Kane on 13th October 2014

Train Simulator 2015 Gets 3D Weather with SilverLining

SilverLining effects in Train Simulator 2015Dovetail Games recently released Train Simulator 2015, which integrates the SilverLining 3D Cloud, Sky, and Weather SDK to power their environmental effects. Our technology is powering their dynamic skies and time of day effects, atmospheric effects, 3D clouds, and precipitation!

Of course we had to go look at the feedback on Steam and the various forums – and we’re pleased with user reactions. Most users report these new effects have little to no impact on their framerate (similar feedback to X-Plane users flying with our clouds,) and there are lots of customers posting screenshots featuring Train Simulator’s new weather capabilities.

We worked closely with the developers at Dovetail to provide quick support on integration issues they encountered, and all in all I think the end result worked out quite nicely – we both ended up with better products in the end. We wish them continued success!

Posted by Frank Kane on 11th October 2014

3D Clouds and Water for Ogre 1.9

The Triton Ocean SDK integrates with Ogre 1.9We’ve updated our SilverLining Sky, 3D Cloud, and Weather SDK and our Triton Ocean SDK to include example applications built with the latest stable release of the Ogre 3D engine, Ogre 1.9.

These sample applications are built using Ogre’s tutorial framework (included with our sample code), and illustrate stand-alone applications that feature our fast, simulation-quality environmental effects.

To get started, install an evaluation SDK for SilverLining or Triton on your system. You’ll see a folder installed for sample or example code, and in there you’ll find Ogre samples for Ogre versions 1.8 and 1.9. Set the OGRE_HOME environment variable to point to your Ogre SDK installation, and open up the included Visual Studio 2010 solution file. To get up and running quickly, just set your debugger properties to start you in the appropriate bin folder of the Ogre SDK as your working directory, so the necessary Ogre DLL dependencies will be found. If you’re using Ogre’s OpenGL renderer, you’ll need to add a line to Ogre’s resources.cfg or resources_d.cfg file as well, as described in the sample’s README.txt file. Build and run, and you should see our 3D water effects, or 3D clouds and dynamic skybox, rendered within Ogre with the familiar Ogre head.

The SilverLining Sky, 3D Cloud, and Weather SDK integrates with Ogre 1.9.

If you’re wondering how our Triton Ocean SDK compares to Ogre’s Hydrax water module, we’ve put together a feature comparison to help you out. Triton is free to try however, so please compare for yourself. SilverLining is comparable to Ogre’s SkyX, but offers a wider range of cloud rendering techniques and many features important to simulation and training applications. Again, it’s free to try, so please compare for yourself within your own application.

Posted by Frank Kane on 10th October 2014

Using Triton Ocean SDK with Vega Prime

rough-bestWe just heard from a customer who successfully integrated our Triton Ocean SDK with the Vega Prime engine – although we’ve heard rumors of others doing this before, this is the first time we’ve actually seen it work. (Vega Prime is a trademark of Presagis.)

Turns out it’s pretty straightforward – you just create a subclass of vrGeometry, override its Draw method. In there, you can get the view and projection matrices from the context’s channel, as pass them into Triton (be sure to convert these into double-precision values first!) Then, call Ocean::Draw(), and you’ve got a basic ocean up and running. Of course you need to instantiate and initialize a ResourceLoader, Environment, and Ocean object at startup as well, but there’s nothing special about that.

Integration of our SilverLining Sky, 3D Cloud, and Weather engine would work in a similar manner, I would imagine.

If you’re looking for a lower-cost alternative to Vega Prime Marine with a comparable feature set, have a look at Triton! It will mean a little more engineering work compared to a drop-in solution such as Vega Prime Marine, but the savings may be well worth it.

Posted by Frank Kane on 10th October 2014

Time-of-Day Illumination Effects in Unity 5

We recently loaded up our SilverLining asset for the Unity engine in the new Unity 5 (which is still in beta.) We wanted to make sure it still works in Unity 5 (it does,) and also explore some of the much-touted global illumination features in Unity 5 and see how SilverLining might integrate with them.

It turns out that a lot of what Unity is called “global illumination” is stuff SilverLining has supported from the start, even in Unity 4. And it continues to work just fine in Unity 5.

Here’s a video showing a complete time of day cycle from SilverLining within Unity – you might want to skip to the sunrise at the end, as that’s the most interesting.

If you read up on what Unity is calling “global illumination” in Unity 5, it consists of a few things:

Dynamic diffuse and ambient light depending on the time of day and weather conditions. Well, as you can see in the video above, we already dynamically control a light source that SilverLining provides, and its color and direction will change realistically at sunrise, sunset, and at night. It’s all just automatic, already.

Light probes and reflection probes. Really this boils down to having an environment map created (a “cube map”) that represents the sky, which can be used to provide reflection and refraction information while rendering. Again, SilverLining has provided this from day one, and it’s how you can hook SilverLining up to our Triton Ocean package, for example, as a source of reflections.

So – if you want some of the global illumination features promised in Unity 5 today with Unity 4, check out SilverLining! And, it’ll continue to work just fine in Unity 5 as well.

Posted by Frank Kane on 6th October 2014

Show us your stuff.

Distant thunderstorms from SilverLining approach ships in Triton's water in Mak Technologies' VR-Vantage.Have you built something you’re proud of that includes SilverLining or Triton? We’re updating our screenshot gallery, and looking for some fresh customer images.

We’ll credit your screenshot, leading to a little bit of free publicity for your company and product (for example, this image is from our friends at VT MÄK). Plus, often we’ll spot something when looking at your sky and water, and can offer some simple tips to make it look even better.

If you’re willing to share, please email us some shots and they could end up on our website! (make sure you’re authorized to share your images publicly first, of course.)

Posted by Frank Kane on 1st October 2014

Get our updated white paper

SilverLining and Triton environmental effects.We’ve updated our white paper titled “Immersive, Low-Cost Training with Environmental Effect SDK’s“, available for free download! This white paper covers the current state of the art in real-time visual simulation of oceans, skies, natural lighting, and 3D volumetric clouds. We’ve tried to just present the latest research and capabilities of technology on the market – it’s not just a sales pitch for Silverlining and Triton; we also acknowledge our competitors in this paper. Its objective is to keep project managers informed of industry’s current capabilities in these areas, and to raise awareness that these capabilities may be had at low-cost and integrated into free, open source scene graphs and engines. Movie-quality synthetic natural environments may be had in real-time simulation without incurring large software licensing costs. We hope you find it informative!