Project that converts pbrt scene files into c++ classes => can be used to write an exporter to another scene format.
The project is configured as a console application that takes an input pbrt file, the output destination and some optional parameters. See Source/main.cpp for the description of all optional parameters.
To convert the PBRT c++ class to you own format, replace the // TODO convert to your own scene format here in main() with your converter.
The most important PBRT c++ classes are:
- PbrtScene was used to build the Scene.
Call
getRenderOptions()to get the scene configuation. - RenderOptions:
struct RenderOptions
{
Matrix cameraToWorld;
SceneObject camera;
Vector cameraPos;
Vector cameraLookAt;
SceneObject sampler;
SceneObject film;
SceneObject renderer;
SceneObject surfaceIntegrator;
SceneObject volumeIntegrator;
SceneObject accelerator;
SceneObject pixelFilter;
std::vector<SceneObject> volumeRegions;
std::vector<std::unique_ptr<Shape>> shapes;
std::vector<Light> lights;
};- SceneObject. Used to describe the Camera, Renderer etc.
struct SceneObject
{
std::string type;
ParamSet set;
};-
ParamSet Dictionary to look up parameters. Example: If the Camera SceneObject has the type "perspective", you can use
camera.set.getFloat("fov", 90.0f)to retrieve the fov. If the parameter was not set,90.0fwill be returned. -
Shape: base class for all shapes. Implemented shapes are: Triangle and Sphere