A ray tracer starting from scratch in C++.

• points, vectors, spheres, triangles, planes
• point, ambient, and area light sources
• blinn-phong shading model
• diffuse and reflective materials
• triangle meshes (obj file format)
• axis-aligned bounding boxes and bvh trees for acceleration
• jittered monte-carlo antialiasing (smooth edges and soft shadows)
• hdr format (.exr)

• mac: g++ -O2 *.cc -I. -I/usr/local/include/OpenEXR -lIlmImf -lImath -lHalf -Wall -o raytra
• linux: g++ -O2 *.cc -I. -I/usr/include/OpenEXR -lIlmImf -lImath -lHalf -Wall -o raytra

• ./raytra [scenefile.txt] [output.exr] [PRIMARY_NUM] [SHADOW_NUM]