We are playing with image based lighting
Interactive 4. division.
Posts Tagged ray tracing
More raytracing
Jun 12
Screenshot from our Lightsky ray tracer
We are playing around with our CUDA ray tracing software. The design philosophy is to create a real-time ray tracing experience that allows the user to play with the visual parameters and get an instant feedback. This is not something revolutionary but ray tracing is such a flexible rendering technique, so the basic software can be used in a lot areas. In this demo the user can change and update the material properties at runtime.
We finally found a decent model 
.
Refraction and diffuse materials, rendering time 45 sec.
But we still like some good old programmers art. The above image is a rendering that uses ambient occlusion together with classic ray tracing.
No ray tracing post without Sponza!
Smoke rendering software
May 15
Screenshot from the demo
Here is a tech demo of our Cuda smoke visualizer software. The software demonstrates real-time interaction and visualization with a smoke data set. It is possible to adjust several parameters such as density and lighting position. To download press HERE.
Additional screenshot from the demo
Fun with Photonmapping
May 9
Photon mapping
Our first attempt to use photonmapping in our Cuda raytracer, 300 samples pr pixel, 1200×800, final image rendering time 65 secs.
Here is the famous sponza scene in a 400 pixel pr sample rendering, without and with photonmapping. At this moment this takes a few minutes
to render, but we hope to improve on the rendering time when we learn a little more about CUDA.
Ray marching smoke
May 6
Nice real-time smoke visualization, rendered by our CUDA tracer including a clear sky model. The smoke dataset was delivered by Michael Bang and Brian Bunch Christensen from the Department of Computer Science, University of Aarhus.
Short video preview of our technique.
Raytracing on the GPU
May 1
We have recently begun initial experiments and implementation of a GPU assisted raytracer (through CUDA). Our vision is a progressive global illumination renderer with real time updates.
CUDA raytracer - pathtracing, lambertian only
CUDA raytracer - refraction and reflection test
