The realism of Cube Republic’s Coastal System in Second Life

Cube Republic Coastal System

Landscaping in Second Life is fun; I enjoy building home environments and landscape parcels and properties for friends and anyone interested.

However, when it comes to coastal areas, things can be a little tricky. Whilst there are a number of coastal and beach building kits available in Second Life, they don’t always fit the bill as fully as we might like; the sand colour might not always be suitable or retexturing prove a little tricky or the ebb and flow of the tide doesn’t look quite right. All of this now changes courtesy of the Cube Republic Coastal System.

Cube Republic Coastal System

Now, in the interests of transparency, I will note that Cube is a long-standing friend in Second Life, a person I admire for his outlook on life as well as for his creativity. As such, my opinion might be considered biased; however, Cube has always, with the likes of Alex Bader (Studio Skye) and Sasaya Kayo (HPMD) been one of my go-to landscaping creators for pretty much all of my projects.

This is because, simply put, Cube is a passionate creator; his plants and trees are modelled with care and attention to detail such that they reflect their physical world opposites pretty much perfectly. Similarly, his terrain kits – rocks, caves, landforms and so on – offer a huge amount of realism.

Cube’s boardwalk with customisable graffiti, Cube Republic Tropical Demonstration Island

With the Coastal System, Cube brings a new level of realism to coastal waters. Comprising 34 beach sections, 6 rocks and making use of PBR, this kit brings together everything any landscaper needs for creating superb coastal areas and beaches with the most realistic ebb and flow of tide every seen in SL.

The 34 beach elements have a choice of 8 looks for the sand, allowing them to be used in pretty much any environment from tropical to volcanic, with the rock elements having a five finishes. This is enough to make the system highly flexible in and of itself – but it is not the most outstanding aspect of the kit.

Cube Republic Tropical Demonstration Island

That lies with the ebb and flow of the tide as it runs up and down the beach – it is the most realistic effect I’ve witnessed in SL, and worlds away from other systems. The way in which the incoming wave crests foam, the surface of the water rolling up the sand even as underneath, it is being sucked back out to leave steamers of latte-like foam behind is incredibly life-like.

Achieving this level of dynamic movement has not been easy; Cube has been working to perfect it for well over six months, modelling tidal motion first using fluid simulation – requiring some 30 hours of baking to achieve for a region – prior to moving on to actual rendering and video editing to produce the finished result as seen in the kit. The result is remarkable and well beyond anything which can be demonstrated in still photos; hence why I’ve included a short video, captured at Cube’s Tropical Island demonstration region, where the kit has been used – and which should be visited by any landscaper wishing to see the tide effect first-hand.

Cube Republic Coastal System

This is not the only innovation Cube has included in his kit. Also included is a bioluminescence feature. Managed via the system’s HUD, this allows the ghostly glow created by micro-organisms which can be visible along stretches of beach unpolluted by nearby lights to be present along beaches built with this kit. The effect can be toggled on or off – or set to follow the day/night cycle of a parcel or region.

And if all this weren’t enough, the kit’s rocks include tidal sounds and spray effects which can be enabled and adjusted by direct touch, whilst PBR allows some superb effect with sea water washing over shoreline rocks. To further help extend / integrate elements into a coastal scene, Cube has included a total of 16 PBR materials – 8 terrain and 8 feathered sand and a comprehensive user guide to help even the most inexperienced user make sense of things (although some familiarity with SL’s in-world building / editing tools is required to put things together).

The Coastal Kit is currently exclusively available at Famished for L$1249, after which it will be generally available through Cube’s in-world and Marketplace stores.

Related Links and SLurls

2026 week #40: SL Open Source UG Summary

Hippotropolis Theatre: home of the OSD/TPVD meeting
The following notes were taken from:

  • My chat log of the Open-Source User Group (OSUG) meeting held on Friday, October 2, 2026.
  • The video of the meeting, recorded by Pantera and embedded at the end of this article. My thanks to her for providing it.
Table of Contents

Meeting Purpose

  • The Open Source User Group (OSUG) meeting is an open discussion of Second Life development, including but not limited to open source contributions, third-party viewer development and policy, and current open source programmes.
  • This meeting is generally held twice a month on a Friday, at 13:00 SLT at the Hippotropolis Theatre and is generally text chat only.
  • Dates and times of meetings are recorded in the SL Public Calendar.

Official Viewer Status

  • Default viewer  26.3.0.31203661088, August 10, promoted August 17 – quality of life improvements; performance improvements; bug fixes – No Change.
  • Second Life Lua Editor RC / Beta viewer with Linux support 26.4.0.35914774337, September 24 – NEW.
    • Lua scripting support (on regions with Lua scripting enabled).
    • Improved communication between the Viewer and the newly published Second Life VS Code extension.
    • Offers an experimental Linux viewer build.
    • Includes the latest WebRTC Voice and viewer-maintenance updates.
  • Second Life Chat Modernization viewer 26.3.0.35248298254, September 22 – NEW.
    • Recent conversations follow you seamlessly: a direct message you receive on SL Mobile can also be available when you return to desktop, and vice versa; Recent direct message history will be available on logging-in; existing desktop chat logs are preserved – previously saved local history isn’t being replaced or removed; conversation history feels continuous: on desktop, your existing local history and newer message history are brought together into a single conversation.

Viewer Notes

  • The 26.4 Lua Editor / Linux viewer remains at RC / beta status, but the hope is to promote that to de facto release status in the coming week.
  • Work is going into the 26.5 viewer – currently, it looks like this will include the Chat Modernisation work currently at Project / alpha stage (per the list above), together with maintenance fixes and other items.
  • Leviathan Linden’s game_control work is currently held pending further server-side work, however the overall plan for this in terms of the viewer are:
    • Get a Project / alpha viewer out as soon as possible
    • Possibly go on to roll game_control in viewer 26.5. 

General Discussion

  • Chat Modernisation work:
    • There was a reiteration that this work is currently concerned with persistence of IM histories when moving between devices / viewer instances, rather than dealing with matters such as encryption (although it was noted that the chat history itself is encrypted end-to-end).
    • It was also noted that other improvements will be made as is feasible, according to roadmaps / resource availability.
  • Official RLV support:
    • This was a project started some time ago – with the assistance of RLVa developer Kitty Barnett – to add RLV support to the official viewer.
    • This project has been stalled for some time, however, Geenz noted there is no technical blocker for the project, and internal discussions are still going on at the Lab as to how best to progress the project.
    • There is also a Github thread for RLV/a discussions.
  • There was a general discussion of texture handling – decoding, options, VRAM management, consideration for better Mobile use, etc. See the video, 25:19-35:51 (note this runs concurrent with comments on the deletion of orphaned assets from the asset service and the opening of comments on RLV/a support as noted above).
  • Please refer to the video below of the rest of the meeting comments..

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