https://wiki.blender.jp/index.php?action=history&feed=atom&title=%E5%88%A9%E7%94%A8%E8%80%85%3ALukasstockner97%2FGSoC_2016%2FWeekly_Reports%2FWeek_11 2026-10-26T03:07:45Z このウィキのこのページに関する変更履歴 MediaWiki 1.31.0 https://wiki.blender.jp/index.php?title=%E5%88%A9%E7%94%A8%E8%80%85:Lukasstockner97/GSoC_2016/Weekly_Reports/Week_11&diff=152097&oldid=prev 2018-06-28T21:20:56Z

<p>1版 をインポートしました</p> <table class="diff diff-contentalign-left" data-mw="interface"> <tr class="diff-title" lang="ja"> <td colspan="1" style="background-color: #fff; color: #222; text-align: center;">← 古い版</td> <td colspan="1" style="background-color: #fff; color: #222; text-align: center;">2018年6月28日 (木) 21:20時点における版</td> </tr><tr><td colspan="2" class="diff-notice" lang="ja"><div class="mw-diff-empty">(相違点なし)</div> </td></tr></table>

Yamyam https://wiki.blender.jp/index.php?title=%E5%88%A9%E7%94%A8%E8%80%85:Lukasstockner97/GSoC_2016/Weekly_Reports/Week_11&diff=152096&oldid=prev 2016-08-06T03:42:25Z

<p>Created page with &quot;Hi! I started this week with a short side project - implementing the recent Solid Angle paper &quot;Blue-noise Dithered Sampling&quot; into Cycles. Initial results are pretty nice - espec...&quot;</p> <p><b>新規ページ</b></p><div>Hi!<br /> <br /> I started this week with a short side project - implementing the recent Solid Angle paper &quot;Blue-noise Dithered Sampling&quot; into Cycles. Initial results are pretty nice - especially for low sample counts (&lt; ~16spp), a visual improvement is clear. However, there are some tricky cases like the hashing that&#039;s currently performed for Branched Path Tracing, so a proper implementation will take a bit longer.<br /> <br /> On Monday, I updated my wiki page (https://wiki.blender.org/index.php/User:Lukasstockner97/GSoC_2016), which now contains all my weekly reports and a few rendered image comparisons. Detailed documentation will be added later, once the final design is fixed.<br /> <br /> I then went back to coding and fixed the remaining &quot;black spot&quot; problems, which could be tracked down to a uninitialized variable and a few more NaNs in Cycles. Since then, I haven&#039;t encountered a single black spot, so I&#039;m optimistic that the issue is pretty much solved.<br /> <br /> Next up, I did the denoise pass storage refactor - instead of directly accessing the RenderBuffers through complicated addressing logic, all relevant data is now copied into a linear array before processing it. That makes denoising a bit faster (~15-20%, depending on the scene) and allows to simplify the code a lot, along with being necessary for the upcoming big CPU speedup from SIMD instructions.<br /> I&#039;m still not sure whether I should go for SSE or AVX instructions - AVX is eight times as fast (SSE &quot;only&quot; four times), but requires a fairly new processor to get any speedup (Sandy Bridge or newer for Intel, Bulldozer or newer for AMD). If I go for AVX, the default half-window size should be reduced to 7 - a 15-pixel window needs 2 instructions, while a 17-pixel one needs 3...<br /> <br /> At the end of the week, I started to work on the standalone tool and cross-frame filtering. The changes to the actual kernel are remarkably small, but the host side needs a lot of extra code for it.<br /> <br /> So, for next week, I&#039;ll finish the standalone frame sequence denoising for animations, and then will continue with the NLM weights and, if I&#039;m not out of week at that point, the SIMD CPU version.<br /> <br /> Note that the actual filter result didn&#039;t change at all due to the changes from this week, it&#039;s just a bit faster and the code is way cleaner and ready for further improvement.<br /> <br /> Lukas</div>

wiki>Lukasstockner97