Bidirectional Path Tracing using Nvidia Optix , Part 2 (Diffuse + reflections)

After minimal changes , I present you my first reflections (Diffuse Coefficient is Kd=0.1 and reflectance coefficient Kr= 0.9 in this example, these probabilities are used in the Russian Roulette. )

In these two first posts, the intensity of the light is attenuating at each "hop" of the path ,  as a product  of : 

 BDpathEye[eyeIndex].contribution*BDpathEye[eyeIndex].cosin*2.0*M_PIf; 

(2*π is used because at this point only diffuse surfaces are concidered)

Contribution is the brdf of the ray-hitpoint. 

->> Click here for a render from another angle

In the next post(s) , i will try to improve this factor by adding the attenuation from the traversed distance(r^2) into the mix , also i will add refraction and specular coefficient