Search found 161 matches

by graphicsMan
Tue Jul 16, 2019 3:22 pm
Forum: Scratchpad
Topic: SIGGRAPH anyone?
Replies: 3
Views: 77

Re: SIGGRAPH anyone?

I'll be there.
by graphicsMan
Mon Jul 16, 2018 8:28 pm
Forum: Links & Papers
Topic: Primary Sample Space Path Guiding
Replies: 3
Views: 1850

Re: Primary Sample Space Path Guiding

Nice, thanks for sharing!
by graphicsMan
Mon Jun 04, 2018 5:28 pm
Forum: Visuals, Tools, Demos & Sources
Topic: My introduction
Replies: 11
Views: 4454

Re: My introduction

Welcome
by graphicsMan
Thu Feb 22, 2018 2:55 pm
Forum: Visuals, Tools, Demos & Sources
Topic: My little path tracer
Replies: 28
Views: 12731

Re: My little path tracer

Nice :)
by graphicsMan
Tue Nov 07, 2017 5:26 pm
Forum: Visuals, Tools, Demos & Sources
Topic: SIMDy
Replies: 7
Views: 13591

Re: SIMDy

NM, re-reading, it is clear that it doesn't generate object code. I think it's a nifty project, and probably a good way to learn stuff, but I think if you spend effort writing optimized C++, I'd be very surprised to see this perform similarly.
by graphicsMan
Tue Nov 07, 2017 5:24 pm
Forum: Visuals, Tools, Demos & Sources
Topic: SIMDy
Replies: 7
Views: 13591

Re: SIMDy

Does it generate object files? IMO, this is pretty neat. It would be cool to write kernels using python, and then link those into C++ code.
by graphicsMan
Mon Oct 16, 2017 9:08 pm
Forum: General Development
Topic: Quick Question
Replies: 12
Views: 10513

Re: Quick Question

I'd suggest running a profiler to see what your hot spots are.
by graphicsMan
Wed Oct 04, 2017 4:01 pm
Forum: General Development
Topic: Quick Question
Replies: 12
Views: 10513

Re: Quick Question

trig functions will be much more expensive than sqrt.
by graphicsMan
Thu Sep 28, 2017 4:56 pm
Forum: General Development
Topic: Quick Question
Replies: 12
Views: 10513

Re: Quick Question

Your ray tracer will need to be extremely fast before optimizing sqrt at this level will make much sense. Of course there are many cases where you can avoid sqrt altogether, and that makes sense, but I wouldn't go out of my way to avoid it. And with SSE on modern processors, the latency is about 10 ...