chena

In the talk, it said that "the reproducing kernel for the order L spherical harmonics is simply a sum of zonal harmonic functions", it seems that (2l+1)/4π P_l(x dot y) is not the zonal harmonic functions.

for aerial perspective, Physically Based and Scalable Atmospheres in Unreal Engine is a good paper.youtube.com/watch?v=SW30QX1w… and source github.com/sebh/UnrealEngine…

Cool, your cloud is very smooth. How did you remove the spatical artifacts of the structured sampling? Use blue noise to dither the ray start and use taa to reomve dither artifacts? Thanks. Left is reference, right is my structured sampling implemention.

I found the same question also, teapawt.net/chena_cpp/status/13713… oversampled just needed at yellow part and red part? Or all pixel need oversampled? Thanks.

I try the structured sampling, it works, but it seems that the cloud is get cracked, is there some bug, or this is the structured sampling inherent problem? Thanks. left is reference, right is structured sampling.

My cloud is always too dark at the edge, did you have some suggestion to fix that? Thanks.

Thanks, i try it myself, it seems that scattering 5 octaves is enough.

If you use hdri sky, you must use 22ev hdri image, left is 22ev, right is not 22ev. right just remove some brightest sun pixel, lighting is very different. unrealengine.com/zh-CN/tech-…

You need change the display language to english. I highlight it use the red ellipse.

@Qualcomm @Qualcomm_Dev Is there any document about the overdraw mode in the snapshot analyze mode. I don't find anything about this in the user guide. #graphicsprogramming #Profile