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Note how there's no access to ROPs from CUDA or OpenCL, I guess the same goes for RT. In CUDA 10 there are special warp matrix operations that leverage the tensor cores on compute capability 7 GPUs (https://docs.nvidia.com/cuda/cuda-c-programming-guide/index.html#wmma), so in general NV seem open t...

@ingenious Thanks, that was helpful! I read Veach's thesis Chapter 8 which explains a lot. The intensity of the emissive objects themselves is uniform (i.e. same intensity in every direction), as you sad. When I just naively evaluate the LTE, cosine terms etc. come into play inside the integral. Whe...

all geometric factors relating to the light source--surface area, distance, and cosine term--are accounted for in the probability of a ray hitting the light source "by accident." This explanation makes sense. What confuses me however is that both surface area and distance (squared) are part of the ...

I'm wondering, in a naive path tracer w/o NEE or MIS, do I have to scale the contribution of an emissive surface by a dot(n, -ray.dir) term? Intuition says yes because light intensity depends on solid angle - lights viewed from a grazing angle appear darker than lights viewed from normal direction. ...

Here: https://www.youtube.com/watch?v=yaK1e59-oAA it suggests that RT is currently a software feature, but that future GPUs will have fixed-function hardware. ("..the next generation of AMD and Nvidia will have hardware to speed this up.."). This is the most important takeaway IMO.

I think it is required that emitting particles should not scatter light I'm not quite sure if I understand how you come to this assumption and if I totally understand your question, but I don't see why particles that emit light shouldn't also scatter light. However, the mental model behind radiance...

I don't quite understand the question: doesn't the first term refer to a particle density at an integration position x that emits radiance L_e in viewing direction w, and that the particle density absorbs radiance by w.r.t. sigma_a(x)? The emitted radiance is not proportional to the absorption, but ...

Here's the (extended) AO results from the SEARIS paper (https://szellmann.github.io), along with a script to run the benchmark. Results for interesting platforms (CPU,GPU) not listed yet are highly welcome!

Going to talk about Visionaray at SEARIS (http://www.searis.net), which is a workshop colocated with IEEE VR.

Check out this teaser video: https://youtu.be/bhhwEO4KWII

This here paper btw. uses quadrics to project 3-D ellipsoids to 2-D: https://pdfs.semanticscholar.org/df2e/0 ... b231e6.pdf