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mirror of https://github.com/MaSzyna-EU07/maszyna.git synced 2026-07-19 15:49:19 +02:00
maj00r d7a3e1310a Replace per-node text capture with camera-distance ring multi-pass
The previous nearest-first build captured every deferred visual node as text into a
sorted vector, which does not scale: one tomaszewo flora file alone holds 440k model
nodes (the scenery has 1M+), so the capture ran the process to ~7 GB and its
enumeration never finished.

Stream the visual nodes in camera-distance rings instead, with no per-node capture
(O(1) memory). The visual pass replays the twin once per ring (nearest first); a node
is built only when its squared distance to the camera -- sampled once when the visual
phase starts, so the partition is stable across passes -- falls in the current ring,
otherwise the rest of its body is skipped in O(1) by jumping over the v6 marker span.
Each node is therefore built exactly once, in roughly nearest-first order, through the
normal node path (instancing buckets unchanged). Explicit triangles/lines shapes have
no single position to ring-test by, so they build in the nearest ring pass only.

Reader gains skip_to_node_end() (remembers the served node's end and jumps the cursor
there); cParser::skipReplayNode() delegates it down the active include child.

Verified: td.scn builds 4 rings, no duplicates, no unexpected tokens, complete ~1s
after the infrastructure pass. tomaszewo stays memory-bounded (no OOM, no duplicates)
where the capture approach previously hung.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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MaSzyna - Railway vehicle simulator

Website · Report an issue · Community Discord · MaSzyna on Steam · MaSzyna on Epic Games Store

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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)

  • CMake (3.0)

  • make

  • A C++ compiler with C++14 support (we use some C++17 features, but older compilers may still work):

    • Windows: Visual Studio 2022

    • Linux: GCC (12.3.1)

Note: MinGW is currently not supported.

2) Libraries (oldest tested in parentheses)

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

Linux note: WITH_BETTER_RENDERER uses DirectX 12 through NVRHI and is not supported on Linux.

Windows

# 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 \
  python2-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, python2-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 thirdparty 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 ~1MB 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

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

Languages
C++ 66.9%
C 29.4%
HLSL 2.3%
GLSL 0.9%
CMake 0.4%