Triton Release History

Version 2.23 June 7, 2013
Protect against crash when Ocean fails to create.
Fix intersection tests when sea level is non zero.
Protect against mutex left locked in Ocean::GetIntersection

Version 2.22 May 24, 2013
New fft-precision-limit config setting to avoid precision errors in JONSWAP at low wind speeds.
Fix Gerstner waves (although they are deprecated...)
Make intersection vector length configurable via intersection-vector-length

Version 2.21 May 20, 2013
Fix cube map reflections in Ogre sample.

Version 2.20 May 17, 2013
Optimize Ocean::GetHeight(). Add parameters for low-resolution queries and for ignoring wake waves.

Version 2.19 May 8, 2013
Remove OpenMP entirely from main libraries, to regain compatibility with Visual Studio Express.
Build with Visual Studio 2012 Update 2

Version 2.18 April 28, 2013
Separate specular shininess for OpenGL vs. DirectX
Improve thread safety
Switch to IPP FFT automatically if CUDA/OpenCL/Compute Shaders fail at runtime
Add config setting do-height-map-copy to optionally disable system memory copy of height map
Add optional hull spray effects in WakeGenerator
Fix particle transparency in DX9

Version 2.17 April 25, 2013
Properly initialize mutex object on RedHat / CentOS
Support separate wave decay rates for wakes, rotor wash, and impacts. 
Decay rotor wash waves faster. 
Discard small waves sooner.

Version 2.16 April 17, 2013
Enable OpenMP only in release targets.
Prefer CUDA to compute shaders on NVidia
Clamp foam to 1.0
Fix spray velocity scale on WakeGenerators

Version 2.15 April 11, 2013
Ocean::GetHeight() and Ocean::GetIntersection() now return false if the intersection is over terrain.
Fix breaking waves in geocentric / opengl.
Fix OpenGL 3.2 geocentric waves.
Dampen the normal map as well as wave displacements in shallow water when breaking waves are enabled.
Fix prop wash on DX9 patch shader
Dissipate prop wash based on distance from wake generator instead of based on associated wave's radius.
Enforce minimum prop wash segment length
Prevent prop wash segments from disappearing prematurely
Make sure everything derives from MemObject
Account for prop offset when culling wake waves
Expose spray size scale in WakeGenerator
Wake LOD improvements

Version 2.14 April 6, 2013
No longer use OpenMP in main library on Windows (to gain compatibilty with Visual Studio Express Edition)
More horizon line fixes

Version 2.13 April 5, 2013
More horizon line fixes
Fix wake wave sorting

Version 2.12 April 4, 2013
Add spray scaling to Impact constructor
Add Ocean::SetDisplacementDampingDistance() to control displacment dampening at runtime
Tweak spray effects
Fix horizon line position when camera is rolled close to 90 degrees

Version 2.11 March 28, 2013
Fix swell wave amplitudes (to be 1/2 wave height)
Added swell-multiplier config setting if you need to override that
Add new WakeGenerator parameters to position prop wash and optionally disable it
Added Ocean::SetDepthOffset() to allow handling of z-fighting at shorelines
Sort wake waves first by wake generator, then by distance, to prevent discontinuities in wakes.
Add WakeGenerator::SetLODDistance() to remove wake detail with distance, enabling more simultaneous
wakes at once.
Further wake visual improvements.
Add parameters to WakeGenerator for bow wake effects.

Version 2.1 March 15, 2013
Add high frequency detail to waves (on PS3.0+ capable cards.)
Add new PIERSON_MOSKOWITZ and JONSWAP wave models
Added swell simulation from distant storms. See Environment::AddSwell etc.
Added Douglas Sea Scale support with Environment::SetDouglasSeaScale (specifies
local wind waves and swells separately)
Add fetch length to WindFetch objects, and hook it up to the JONSWAP model
Updated to AMD APP SDK 2.8
Added "particles-pure-additive-blend" config setting for use with HDR rendering
Fix spray particle suppression using height maps in geocentric worlds
Fade particles in/out more gradually
Gerstner water model is now declared deprecated
Height maps are now copied to system memory when Environment::SetHeightMap() is called,
to produce accurate height queries close to shore. Make sure you are only calling SetHeightMap()
when the texture actually changes significantly to preserve performance.
Factor breaking waves into height queries
Update to Visual Studio 2012 SP1

Version 2.03 March 7, 2013
Make sure WakeGenerators don't attempt to reference a deleted Ocean
Add useAddDllDirectory option in ResourceLoader.

Version 2.02 March 4, 2013
Remove all waves from a WakeGenerator when it is deleted

Version 2.01 March 1, 2013
Prevent use of height maps outside of the area they explicitly define
Fix wake propeller backwash on slow moving ships and ships moving parallel to each other

Version 2.0 February 28, 2013
Added Environment::SetHeightMap() - you may now provide a height map to Triton, used for blending the water with terrain
and preventing spray from coming up out of the ground near the shore.
Added Environment::SetBreakingWavesParameters() - if you provided a height map, breaking waves at shorelines may be enabled
Fixed height queries at north and south poles
Fixed alignment of height queries with the water surface in geocentric mode
Fixed Gerstner model
Protect against reading uninitialized height values in the first frame under CUDA
Added optional drawWater and drawParticles parameters to Ocean::Draw(), allowing you to draw the water surface and spray
particles independently.
Change planar-offset setting to 0 to avoid precision issues
Make fft-displacement-damping-distance runtime configurable via Environment::SetConfigOption()
Always pass full path names to SetDLLDirectory() (ensure CUDA etc. DLL's are found)
Flatten water geometry as it becomes transparent in shallow water
Regain compatibility with Pixel Shader 2.0 model cards under DX9
Add Ocean::SetPlanarReflectionBlend() to allow run-time adjustment of planar reflection strength.
Smoothly fade new wake / rotor wash / impact waves in over the time specified by wake-fade-in-time
Fix ray/plane intersection precision for rotor wash etc.
Rotor wash visual improvements
Don't use point sprites for spray on NVidia / OpenGL (improves spray appearance when close)
Improve ship wakes by keeping transverse waves convex
Improve accuracy of ship Kelvin wake angle & wavelength
Eliminate "cliffs" inside wakes
Added Ocean::ComputeReflectionMatrices() to simplify setup for planar reflections
Multiple Ocean::UpdateSimulation() calls with the same timestamp will be ignored
CUDA now works with Visual Studio 2012
Fix discovery of FFT DLL's under Visual Studio 2012
Made it easier to recompile Triton to strip out DirectX dependencies (define DIRECTX9_FOUND=0 and DIRECTX11_FOUND=0 and remove DX libs)
Fix deletion of CUDA resources under OpenGL
Only add to the DLL search path instead of replacing the current working directory when possible
Blend out the seam in the middle of propeller backwash
New propeller wash texture
Tuned impact spray appearance

Version 1.73 February 6, 2013
Fix error in CMake files
Add support for dongle-based licenses

Version 1.72 January 30, 2013
Fix bug where wash-spray-generation-period and wash-wake-generation-period were not honored.
New Ogre sample code based on a standalone app.
Added ability to render particle-based spray when using patch shaders (see new params on Ocean::UnsetPatchShader)
Fix wake effects in DX9 patch shader
Add Ocean::IsCameraAboveWater()
Fix foam fading with distance in DX9
Ensure ocean renders properly when no wind at all has been set
Take sea level into account when calling Ocean::GetIntersection()
Don't emit wakes and spray from stationary WakeGenerators.
Fix handling of DX9 device loss with CUDA
Fix positioning of spray in geocentric mode
Tweak rotor wash effect to avoid initial wave peak

Version 1.71 January 10, 2013
Fix use of multiple Ocean objects in one process with GPU acceleration
Improve discovery of CUDA device for DirectX9

Version 1.7 January 5, 2013
Add new RotorWash class for spray + waves from localized wind sources.
Add new Impact class for impacts hitting the water, producing spray and waves.
Improved accuracy of height queries
Added Environment::EnableOpenMP() to allow users to restrict Triton's CPU usage.
Automatically push / pop any active shader program in OpenGL 2.x
Config setting shader-filename-prefix may be used to prepend a string to the shader filenames,
enabling user modifications to our shaders to co-exist with the default ones.

Version 1.61 December 28, 2012
Add NO_RENDERER initialization option on Environment, for physics-only servers.
Improve wake appearance; added wake-wave-scale config setting.
Don't emit debug errors when a config entry isn't found.

Version 1.60 December 13, 2012
Further improvements to geocentric precision and planar approximation

Version 1.59 December 10, 2012
Added HDR parameter to Environment::Initialize(), which can be used to disable all color clamping
Added planar-adjust config setting, which can be used to account for error when switching between ellipsoid and planar earth representations
Fix jitter at low altitudes in geocentric mode
Properly handle north and south poles in geocentric mode

Version 1.58 November 19, 2012
Fix memory leak in OpenCL usage

Version 1.57 November 17, 2012
Fix wave directions in shallow water

Version 1.56 September 28, 2012
Read lighting and spray config settings each frame to allow runtime modification
Limit discontinuities in height queries resulting from local choppiness

Version 1.55 September 26, 2012
Increase max allowable grid expansion when close to the surface, and
made this configurable via max-allowable-displacement setting.
Fix DX9 device resets with patch shaders.

Version 1.54 September 15, 2012
Fix DirectX11 patch shader vertex layout
Fix use of patch shaders in multi-threaded rendering under Linux

Version 1.53 September 14, 2012
Fix CUDA with multi-threaded rendering

Version 1.52 September 13, 2012
Fix application of model matrix in patch shaders
Add FPS output in OpenGL sample for benchmarking

Version 1.51 September 12, 2012
Improved foam and spray calculation
Added multi-gpu support for CUDA (see fft-enable-multi-gpu)
Sped up CUDA code over 150% on some systems
Don't re-upload H0 data to GPU if it didn't change
Don't crash on Ocean creation failure under DX9

Version 1.5 August 22, 2012
Added Ocean::SetPatchShader() and Ocean::UnsetPatchShader() methods - with these, you can have
Triton shade your own geometry to transform any user-drawn grid into 3D water with reflections, 
refractions, and foam - instead of rendering an infinite ocean with Ocean::Draw().
Added new samples for rendering user patches.
Fixed usage of smoothstep function in HLSL to address aliasing in DX9
Split out physics updates from rendering; see new optional Ocean::UpdateSimulation() method.
This can be used to do updates in another pass or thread from rendering.
Updated OpenSceneGraph samples to call the new UpdateSimulation() method form its update thread.
Added Visual Studio 2012 support (no CUDA support for 2012 from NVidia yet though.)
Added C# support (see the new CSharpSample in the Samples folder and refer to the readme.txt there)
Automatically add trailing slash to resources path if not given and clean up slashes
Fix crash at shutdown in Ogre sample

Version 1.42 August 1, 2012
Output message to console or debug log when evaluation SDK time limit is reached.
Added Ocean::SetLoopingPeriod to enable animation loops of a specified time
Explicitly enable depth writes under OpenGL & DX9 (fixes rendering under Ogre / OpenGL)
Prevent crash when normalizing zero vectors (ie, if a direction vector of (0,0,0) were
passed in for a WakeGenerator.)
Fix sea level when non-zero in test for above water
Fix CUDA under x64 builds
Improve appearance of propeller wash on tight curves
Added new config setting fft-use-sqrt-approximation; set this to "no" to get accurate 
wave heights at high wind speeds at the cost of some performance.
If enable-kelvin-wakes is set to "no", don't factor in wakes in Ocean::GetHeight().

Version 1.41 June 3, 2012
Add support of Visual Studio 2003.NET for OpenGL and DirectX9 / Intel IPP only
Now compiles on MacOS (using fftss only)
Better detection of OpenGL extensions
Updated to AMD APP SDK 2.7 and clAmdFFt 1.8.214
Don't use OpenCL with OpenGL 3.2 core profiles (crashes inside driver on AMD)

Version 1.40 May 20, 2012
Fix deletion of config entries
Fix simultaneous disabling of wakes and wash config in OpenGL
Update mailing list link in installer (http://bit.ly/sundogmail)
Zero out particle vertex buffers at initialization in OpenGL

Version 1.39 May 4, 2012
Update to CUDA 4.2 and latest APP ML
Fix shader compilation errors under OpenGL 3.2
Fix 64-bit builds for CUDA/Windows and OpenCL/Linux
Shut down CUDA cleanly

Version 1.38 April 29, 2012
Added RandomNumberGenerator interface to allow apps to provide their own (useful for synchronizing channels)
CPU usage reduced when spray is active
CPU usage reduced when wind conditions change
Added fft-lod-bias config setting to combat aliasing / motion artifacts

Version 1.37 April 15, 2012
Ensure the ocean extends all the way to the horizon
Include CMake files with Windows full installer (in addition to Visual Studio solution files)

Version 1.36 April 4, 2012
Fix horizon line underwater
Fix computation of wave height
Eliminate runtime calls to OpenGL extension tests
Work around driver bugs related to auto-mipmap generation
Put grid resolution back at 512

Version 1.35 March 30, 2012
Optimize performance when wind conditions change
Align projected grid with the horizon line
Reduce projected grid default dimensions (thanks to the above change) - gains performance
WakeGenerator::Update now takes an explicit direction vector. Trying to guess at it automatically wasn't sufficient.

Version 1.34 February 10, 2012
Added visualCorrelation parameter to Ocean::GetHeight() to match heights with visuals in the distance
Ensure WakeGenerator::Update() doesn't actually do any drawing, as it could be called from a different thread 
or context from Ocean::Draw().
Better conservation of wake waves (to reduce anomalies from hitting the max number of wake waves in the shaders)

Version 1.33 February 5, 2012
Fix above/below water test
Fix dark line at horizon in geocentric mode near surface
Fix clipping of ocean when near surface in geocentric mode
Fix undefined foam values in Gerstner mode
Fix precision issues in DirectX geocentric mode

Version 1.32 February 2, 2012
Fix wakes in OSG reflection demo when --geocentric is on
Improve foam appearance
Fix various precision issues in OpenGL geocentric mode

Version 1.31 January 31, 2012
Tuned grid resolution and maximum wake height
Added wake-kelvin-wakes config setting to disable 3D ship Kelvin wakes independently from turbulent wakes (see wake-propeller-backwash)
Decreased default setting for max wake waves

Version 1.3 January 30, 2012
Ship wake improvements: added propeller wash effects, separate spray and wake generation points,
and ability to simualte the beam width and ship length. See new WakeGenerator constructor for more details.
Enabled flow control in HLSL - big speedups for DX9 and DX11!
Split up projected grid into 32K chunks under DirectX9 to support low end systems
Improve accuracy of height queries (takes choppiness into account now.)
Fix potential buffer overflow in OpenGL particle systems
Max number of wake waves visible at once now configurable by renderer, and increased for DX11 and OpenGL
Fix orientation of projected grid when camera is inverted
Updated to CUDA Toolkit 4.1, AMD APP SDK 2.6, and AMD APPML 1.6
Fix OpenSceneGraph samples so they run with arbitrary working directories and do not require fftss.lib in Windows
Fix precision issues in geocentric mode when close to the surface
Fix translation of the ocean surface in geocentric mode
Fix default ocean slope if unspecified in geocentric mode

Version 1.23 January 9, 2012
Fail if DX9 vertex shader model 2.0 is all that's supported. Vertex shader model 3.0 or newer is required.
Support combination of DX9 PS 2.0 / VS 3.0 for older hardware
Fix jitter on spray particles in geocentric coordinate systems
Fix spray and wave orientation if Ocean::SetDepth is not called

Version 1.22 January 4, 2012
Enable shallow water translucency for DX9 and DX11
Direct3D9Ex support added
CMake works under Windows now, with option to not include DirectX when building.
Fix fallback case to IPP if FFT setup fails

Version 1.21 December 18, 2011
Added Ocean::SetRefractionColor to allow changing of the ocean color at runtime
Fix warnings from Allocator
Added Gamebryo Lightspeed 3.2 sample code
Fix crash if OpenGL renderer is specified with a DirectX environment
Added Visual Studio 2005 support (except for DirectX11)

Version 1.2 November 12, 2011
Breaking waves and spray effects - toggle with Ocean::EnableSpray()
Ocean::SetDepth now takes a surface normal as well as a depth at the camera position, allowing
for sloping shorelines
Water is transparent when refracted in shallow water. The underwater visibility simulated, and
the values passed into Ocean::SetDepth, will influence this effect. Try the "beach" button in
our demo to see it in action.
Fix surface normal calculation in intersection tests
Fix intersection tests when coordinates are negative
Fix intersection tests in OpenCL
Make waves change smoothly when wind conditions change
Fix SimulateSeaState when using non-standard world units
Improved the fit of the projected grid with the visible scene, increasing resolution.

Version 1.14 October 27, 2011
Beta Linux support introduced - contact support@sundog-soft.com
Fix artifacts when rolling the camera
Explicitly declare calling conventions and byte alignment for better project compatibility
No longer uses ARB extensions; uses OpenGL 2.0 functions directly.
Fix directional light in DX11
Fix crash when using a ResourceLoader with an invalid path
Fix scaling of projected grid when corners project to infinity
Full source project fixes: uses DXSDK_DIR to locate the DirectX SDK; renames debug library build to Tritond.lib

Version 1.13 October 15, 2011
Removes dependency on GLEW entirely.
Fix build settings for x64

Version 1.12 October 12, 2011
Use GLEW as a DLL to avoid multiply defined symbol link errors in other projects
Include missing HLSL file for DirectX 11 compute shader

Version 1.11 September 19, 2011
Made waves more directional with the wind
Include diffuse light when refracting into the ocean
Added optional depthWrite parameter to Ocean::Draw
Added surface normal to Ocean::GetHeight()
Link DX11 Effects framework into 64-bit libraries

Version 1.1 (revision 348) September 8, 2011
Fixed Beaufort to wind speed calculation
Added ship wake effects (see the new WakeGenerator class)
Tweaked noise to reduce tiling at altitude
New planar reflection support (see Environment::SetPlanarReflectionMap and OpenSceneGraphReflection sample)
Added Ocean::GetHeight() method to read back the ocean surface height at any point
Negative reflection vectors now handled better
Fixed CUDA with Direct3D11
Fixed computation of grid size with non-zero sea levels
Disposes of all OpenCL resources at shutdown
Fixed application of noise when using custom world units

Version 1.01 (revison 280) August 6, 2011
Make shaders compilable with latest Intel GPU drivers
Fix x64 support
Pre-allocate temporary FFT buffer for OpenCL
Updated to AMD APP SDK 2.5 and clAmdFFT 1.4.135

Version 1.0 (revision 274) August 3, 2011
Added Ocean::GetShaderObject to allow apps to pass in their own uniforms to modified Triton shaders (enables integration with custom reflections, shadows, etc.)

Version 1.0b1 (revision 272) July 23, 2011
Initial release! Please report any issues or feature requests to support@sundog-soft.com