I'm just playing around with the idea of using Assetto Corsa cars in Speed Dreams.
I'm trying to convert an Assetto Corsa car directory to a Speed Dreams car directory. It's partially working but has issues.
I'm able to extract all the materials, textures and geometry without problems. The cars render fine in AC3D and Speed Dreams when forcing use of just the diffuse textures. The cars require multiple layers of textures to render properly and AC3D only supports a single texture. Assetto Corsa uses shaders to apply the textures and there is no way to do that in AC3D.
Asseto Corsa car models have wheels and the steering wheels included in the model. Speed Dreams expects them to be in seperate files. The wheels and steering wheels are now extracted into seperate files.
The converted Speed Dreams .acc files do not have multiple textures and triangle strips yet.
The car xml config file is generated from the kn5, ini and lut files. The ini files in the data.acd file are used when available. The skins and previews are converted. Skins only work when they are true skins like Speed Dreams expects and don't rely on shader magic to work.
The wheels can't be used without modifications. The brake disks can't be used because they are created by Speed Dreams. Reusing these unmodified from the original model will require changing the Speed Dreams loaders or writing a kn5 loader for osg and ssg.
It's possible to load and drive the assetto corsa sdk formuls_k car. The frame rate is low when the highest quality LOD is used. It is recomended to use the second level of detail. Some high poly count models crash the ssg loader. Not every car parameter is avilable so weird defaults are picked. The default wheels look funny. It's not just convert and play yet.
Create a build directory inside the example project directory and configure the build using CMake to generate the Visual Studio project:
mkdir build
cd build
cmake CMAKE_BUILD_TYPE=Release ..
Create a build directory inside the example project directory and configure the build using CMake to generate the Makefile for GNU Make:
mkdir build
cd build
cmake CMAKE_BUILD_TYPE=Release ..
Then build the executable named kn5toac using GNU Make:
make
The resulting binary is kn5toac inside the build directory.
You can install kn5toac using GNU Make:
sudo make install
kn5toac -c 92MP1 -i "C:/Program Files (x86)/Steam/steamapps/common/assettocorsa/sdk/dev/content/cars/formula_k" -o "C:/Users/Bob/speed-dreams-code/data/cars/models"
A directory called formula_k will be created in the output directory specified by -o and all the generated files will be placed there.