helpers

color.h
common.h
hdrloader.h
parser.h, object.h, proplist.h
timer.h
vector.h
warp.h

testing

chi2, ttest, warptest

gui/display

bitmap.h
block.h
glutil.h
gui.h, imguiScreen, imguiHelpers
~render.h
rfilter.h
hdrToLdr.cpp

post process

denoiser.h

renderer (cuda part)

~render.h
scene.h
integrator.h: direct_{ems,mats,mis}.cpp, path_{mats,mis}.cpp, av.cpp, normals.cpp, photonmapper.cpp, preview
sampler.h: adaptive.cpp, independent.cpp
bsdf.h: diffuse.cpp, microfacet.cpp, dielectric.cpp
emitter.h, arealight, pointlight, envmap
texture.h: checkerboard, pngtexture, consttexture
shape.h
transform.h
mesh.h (sampling surface), sphere.cpp, objloader
volume.h

helpers

dpdf.h (i.e. discretepdf cuda?)
frame.h
ray.h

scene (params part, raygen)

camera.h: perspective.cpp
mesh.h

acceleration structure

bvh.h
bbox.h
kdtree.h
photon.h