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Shadow mapping
tinySG supports two ways of calculating shadows: Hard realtime shadows
for up to eight light sources using shadow maps and shadow textures,
pre-baked by the companion raytracer tinyRT.
All geometry in a scene may be flagged as shadow casters
and/or shadow receivers.
The image on the left shows both a soft ambient occlusion ground shadow
and hard shadows using shadow maps
(at wing mirror and on interior).
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Features:
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Shadow mapping, texture baking, ray-tracing |
The Touareg dataset is available at dmi for non-commercial use.
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Instanced rendering
tinySG geometry nodes support instanced rendering, allowing to render
a vast number of copies of a given geometry with a single API call.
The technique allows for more effects than you might guess.
Read more about instanced rendering.
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Features:
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instanced rendering, advanced materials |
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Stereo:
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yes (csgEdit build-in) |
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Path:
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examples/fur/teddy.csg |
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OS:
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Linux, Windows |
The teddy bear is based on obj geometry found at code.google.com.
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Computational fluid dynamics
tinyFluids is a library implementing a CFD solver and a plugin for pre- and
post-processing in csgEdit. The solver runs on both CPU and GPU and is scalable
across hundreds of cores.
Read more about tinyFluids.
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Features:
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GPGPU CFD, illuminated lines, spline visualisation |
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Stereo:
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yes (csgEdit build-in) |
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Path:
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models/tinySG/tinyFluids/shuttle |
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OS:
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Linux, Windows |
The Space Shuttle dataset used by courtesy of NASA.
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X-ray mode and blending
Using the image processor to invert colors may be combined with the x-ray.
render mode. Do know when to stop - the results can become quite scary...
Read more in the associated tech guide.
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Features:
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Blending, state overrides, image processor |
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Stereo:
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No (not yet) |
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Path:
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models/inventor/visibleman |
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OS:
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Linux, Windows |
Visible man dataset by courtesy of Georgia Tech University.
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Visualising simulation data
Take spreadsheet data and import it into geometry nodes like csgQuadMesh.
Use material overrides and shaders to highlight certain aspects of datasets.
See larger image here.
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Features:
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GLSL, GL state override, transparency |
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Stereo:
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Yes |
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Path:
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examples/vissim/trajectory |
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OS:
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Linux, Windows |
Space Shuttle model and texture are courtesy of NASA.
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2D image processing
A lot of effects like overlays, glow or blur work on the final 2D image
created by the renderer. The tsg image processor is part of tinySG's
utility library and comes as an independent framework. Use the image
processor to increase the atmosphere of clean, math-dry renderings or
enrich the image with additional information.
Find out more on the image processor
here.
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Features:
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GLSL, overlays, distortion, color correction |
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Stereo:
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No |
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Path:
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- |
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OS:
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Linux, Windows |
The engine dataset is part of the SPECapc NX benchmark.
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Realistic interaction of models with environments
Rendering a model with reflections, mirroring an environment and casting shadows
increases the realism of a scene dramatically.
tinySG rendered some nice images, combining it's multi-texturing texturing and
shader capabilities. See more images like the one to the left
here.
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Features:
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Cube maps, reflection maps, multi-texturing, GLSL shaders |
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Stereo:
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Yes |
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Path:
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demos/envmap/db9 |
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OS:
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Linux, Windows |
The original DB9 model is courtesy of an unknown hero on the Internet.
The awesome environment maps have been kindly provided by "Humus".
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Volumetric dataset rendering
The mummy dataset was created by the British Museum. It is a CT scan
of an Egyptian priest living about 800BC, the Nesperennub mummy.
The image to the left was generated using csgEdits volume property
editor to setup transfer functions for the absorption voxel field.
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Features:
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Volume rendering, 3D textures, Dicom Import |
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Stereo:
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Yes |
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Path:
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dataset w/o public clearance |
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OS:
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Linux, Windows |
"Right-click/view image" to enlarge, read more here...
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CAD data visualisation
The Aston Martin DB9 CAD data set has been worked off with a bunch of
new features of csgEdit, like geometry re-meshing, state sorting,
orientation flipping, normal recalculation, tree optimisation and
a dozen of other functions.
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Features:
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Soft shadow, Render Optimiser, Data Prepraration |
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Stereo:
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Yes |
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Path:
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<exampleRoot>/datasets/aston_martin |
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OS:
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Linux, Windows |
The original DB9 model and texture images are
courtesy of some unknown hero out there on the Internet.
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Interactive, large datasets
The model of the international space station has about 1.6M
triangles. It is rendered at 60Hz, including the earth with about 70MB of
texture, using a GLSL shader for atmospheric effects.
| Features: |
Large dataset, converter, GLSL |
| Stereo: |
Yes |
| Path: |
<exampleRoot>/datasets/iss |
| OS: |
Linux, Windows |
Original ISS model and texture images are by
courtesy of NASA.
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Soft Shadows on the Utah teapot
The image shows a ground soft shadow, calculated for the Utah teapot
in csgEdit. tinySG handles soft shadows as scene properties. They may be baked
into a texture or based on a colored grid of vertices.
| Features: |
Soft Shadow, csgEdit |
| Stereo: |
No |
| Path: |
<exampleRoot>/csgEdit2 |
| OS: |
Linux, Windows, Irix |
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Water Simulation using GLSL
The water animation and lighting shader has been the first
shader programs written for csg's GLSL subsystem. It animates a mesh
using four superimposing sine waves and calculates an environment
reflection in the pixel shader.
Initial development has been done using nVidia's cg, running on a
Silicon Graphics Prism.
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Features:
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GLSL, Environment Mapping |
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Stereo:
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No |
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Path:
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[not ported to tinySG, yet] |
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OS:
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Linux, Windows, Irix |
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3dtv
3dtv is a pretty old experimental code based on csg. It utilises multiple graphics
cards for image feature detection and may calculate a virtual model for tv soccer
broadcasts, almost in real-time.
The image shows a life video from the world championship 2006, augmented with
detected features.
| Features: |
video textures, image processing, real-time feature extraction |
| Stereo: |
Yes |
| Path: |
[not ported to tinySG, yet] |
| OS: |
Linux |
|
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csgPresenter
csgPresenter is an application running 3D-enriched presentations
and slide shows. Build on top of csg, it is capable of driving
blended, multi-projector systems with multiple graphic pipes.
It can embed inventor datasets in the presentation,
or display stereoscopic images, like taken from NASAs Mars rovers.
| Features: |
multi-threaded Qt application, parallel rendering, support
for various image formats, alpha blending |
| Stereo: |
Yes |
| Path: |
[not ported to tinySG, yet] |
| OS: |
Linux, Irix |
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