Does the ray tracing algorithm involves rasterization of image?

Hi there,
I am constructing a ray tracing algorithm , i know that the first step is to develop camera and view plane specifications.
Now is the next step performing rasterization algorithm on image before a BVH tree is constructed so that intersection tests can be performed?

Kindly Guide

I don’t think rasterization is necessary anywhere in ray tracing.

I suggest using a decent open-source implementation for a reference, such as Aila-Laine(-Karras): http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/

can u kindly tell what should be the next step after camera and view plane setup??

Hi,
Try this articles:
http://scratchapixel.com/lessons/3d-basic-lessons/lesson-1-writing-a-simple-raytracer/
http://scratchapixel.com/lessons/3d-basic-lessons/lesson-6-rays-cameras-and-images/

And basically - no, there is no need for rasterisation in ray tracing.
MK