This is OpenGL demo program which procedurally generates lots of geometry from a minimal amount of initial data. Five programmable shader stages available in OpenGL 4 are used.
- OpenGL 4.1 compatible video board
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Up-to-date video driver
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Qt5 toolkit
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C++11 compiler
The demo may be build with a straightforward Qt5 building process. On Linux it may look like this:
git clone https://github.com/sergeyext/procgrass.git
cd procgrass/
mkdir build
cd build/
qmake ..
make
Note that some distributions still provide Qt4 as main Qt version, so qmake binary name for Qt5 may look like
qmake-qt5 or any other distribution-dependent name.
All grass.* and *.glsl files from source directory must be placed into binary directory.
Cellular and Classic noise functions are (C) Stefan Gustavson
Step-by-step pipeline and math description in Russian: https://habrahabr.ru/post/314532/