d2a5f284e3
Each resident tile had a height texture and a material texture of its own, uploaded with glTexImage2D, and was drawn once per material it held with every other material's fragments discarded, all of them whether in view or not. Thousands of draws a frame. Now the tiles of a level live in one pair of texture arrays (terrain_tile_pool), a layer per tile. A pool starts at sixteen layers and doubles when full, copying what it holds on the gpu, so a level takes only the memory its tiles need; uploads go through a pixel buffer orphaned for each tile. The ground textures of every material are gathered into one sRGB array with mipmaps (terrain_ground) - drawn into it layer by layer by a small shader once the engine has each texture ready, since the scenery's textures are compressed and cannot be blitted - with a table of placeholder colours and measured tiling beside it. Each frame the tiles in range are tested against the frustum by bounding sphere and gathered per level into a buffer texture of instance data, and each level is drawn in one instanced call. The fragment shader reads the four samples around it, drops the cell when any of them carries no ground - exactly the rule the bake already assumed - and blends the ground textures of their materials by distance, so material boundaries follow the samples smoothly instead of stepping along triangle edges. State the copy pass changes is captured and put back, and the texture unit cache is reset after raw binds, so the rest of the renderer finds things as it left them. On baltyk: all 30 materials land in the array, 663 of the 1120 tiles in range are drawn after culling, and a frame is at most six terrain draws. The residency line in the log now says how many tiles in range were drawn.
MaSzyna - Railway vehicle simulator
Website · Report an issue · Community Discord · MaSzyna on Steam · MaSzyna on Epic Games Store
MaSzyna executable source code is licensed under the MPL 2.0 and comes with a large pack of free assets under a custom license.
Table of Contents
Getting Started
MaSzyna compiles and runs natively on Linux and Windows. Other platforms are not tested.
Heads-up
Our dev team is small; we keep improving the build process, but issues may still occur. If you get stuck, please ask on the official Discord server.
Prerequisites
For runtime requirements see Minimum Requirements.
1) Software (oldest tested in parentheses)
Note: MinGW is currently not supported.
2) Libraries (oldest tested in parentheses)
-
GLFW 3.x (3.2.1)
If a link error occurs, pass-DGLFW3_LIBRARIES="<path>"to CMake. -
GLM (0.9.9.0)
-
libserialport (0.1.1)
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libsndfile (1.0.28)
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LuaJIT (2.0.5)
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GLEW (2.1.0)
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libpng (1.6.34)
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OpenAL (1.18.2)
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pthread
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Python 3.14 (64-bit; headers and import library required for embedding)
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Asio (1.12)
3) Graphics API
- OpenGL 3.0 or newer
- DirectX 12 via NVRHI (optional, Windows only, for Better Renderer)
CMake flags
| Flag | Meaning |
|---|---|
-DCMAKE_BUILD_TYPE=Debug |
Debug build |
-DCMAKE_BUILD_TYPE=Release |
Release build |
-DCMAKE_BUILD_TYPE=RelWithDebInfo |
Release build with debug symbols |
-DWITH_BETTER_RENDERER=ON/OFF |
Enable/disable NVRHI-based renderer |
-DPython3_ROOT_DIR=<path> |
Root of the Python 3.14 install on Windows (python.exe, Lib, DLLs) for embed/copy steps; on Linux, optional if CMake picks the wrong interpreter |
Linux note:
WITH_BETTER_RENDERERuses DirectX 12 through NVRHI and is not supported on Linux.
Windows
Install Python 3.14 x64 from python.org and include the optional Python native development feature (headers and .lib for embedding). Pass -DPython3_ROOT_DIR="C:\Path\To\Python314" on the cmake line when you want the layout under that directory used for embedding and for copying Lib / DLLs next to the executable.
AppVeyor CI builds with the worker image’s preinstalled Python at C:/Python314-x64 (see appveyor.yml: -DPython3_ROOT_DIR=...).
# Clone repository with submodules
git clone --recursive https://github.com/MaSzyna-EU07/maszyna.git
cd maszyna
# Init vcpkg
call setup.bat
# Create directory for CMake build files
mkdir build
cd build
# Generate CMake project (replace %CONFIG% with Debug/Release/RelWithDebInfo)
cmake .. -G "Visual Studio 17 2022" -A x64 -DCMAKE_BUILD_TYPE=%CONFIG%
# Build (replace %CONFIG% accordingly)
cmake --build . --config %CONFIG% --parallel
Linux
# Install dependencies (Fedora/RHEL family)
sudo dnf install -y \
@development-tools \
cmake \
mesa-libGL-devel \
glew-devel \
glfw-devel \
python3.14-devel \
libpng-devel \
openal-soft-devel \
luajit-devel \
libserialport-devel \
libsndfile-devel \
gcc \
g++ \
wayland-devel \
wayland-protocols-devel \
libxkbcommon-devel
# Clone repository with submodules
git clone --recursive https://github.com/MaSzyna-EU07/maszyna.git
cd maszyna
# Create directory for CMake build files
mkdir build
cd build
# Generate Makefiles (NVRHI is not supported on Linux)
cmake .. -DWITH_BETTER_RENDERER=OFF
# Compile using all cores
make -j"$(nproc)"
Tip (Ubuntu/Debian): Package names differ; install equivalent
build-essential,libgl1-mesa-dev,libglew-dev,libglfw3-dev,python3.14-dev,libpng-dev,libopenal-dev,libluajit-5.1-dev,libserialport-dev,libsndfile1-dev, and Wayland/X11 dev packages as needed.
Installing
There is no make install yet. Copy the built executable to your MaSzyna installation manually.
-
Output directory:
./bin -
File name format:
eu07_YYYY-MM-DD_<commit>[_d]-
YYYY-MM-DD– build date -
<commit>– short commit hash -
_d– present in Debug builds
-
If you already have the MaSzyna assets, copy the executable to the install dir. Assets can be downloaded from eu07.pl.
Rainsted on Linux
If Rainsted (a third‑party starter) fails to detect the executable under Linux, you can create a small wrapper script named eu07.exe:
#!/bin/sh
./eu07 "$1" "$2" "$3" "$4" "$5"
If detection still fails, padding the file (with comments) up to ~1 MB may help.
Known Issues
-
GLFW linking – On some systems you must provide the GLFW library path explicitly with
-DGLFW3_LIBRARIES. -
X11/Wayland linking order – Linking order of X11 and related libs can matter.
-
NVRHI on Linux – The NVRHI/"Better Renderer" path targets DirectX 12 and is currently unsupported on Linux.
Support
-
Official Discord Server: https://discord.gg/qAh9ctWPQv
-
Project page: https://eu07.pl/
Minimum requirements
- OS: Windows 10 64-bit
- Processor: 2 core at least 2 GHz (e.g. Intel Core i3-2100 / AMD Athlon II X2)
- RAM: 6 GB RAM
- Graphics Card: supporting OpenGL 3.3 with at least 1GB VRAM
- 150 GB of free disk space
- Sound card supporting OpenAL with stereo
- Optional COM ports for custom control panel setups.
License
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Source code: MPL 2.0
-
Assets: Custom license