Search found 16 matches

by frank_yifei
Thu Mar 12, 2020 2:23 pm
Forum: Works in Progress
Topic: Atmosphere Simulation
Replies: 24
Views: 19054

Re: Atmosphere Simulation

the blue sky is amazing
by frank_yifei
Tue Sep 03, 2019 4:05 am
Forum: User Support
Topic: Environment lighting results different by cpu and opencl
Replies: 5
Views: 2885

Re: Environment lighting results different by cpu and opencl

ok, thanks, it solved my problem. I just wonder why it is not showing in cpu rendering.
by frank_yifei
Mon Sep 02, 2019 2:00 am
Forum: User Support
Topic: Environment lighting results different by cpu and opencl
Replies: 5
Views: 2885

Re: Environment lighting results different by cpu and opencl

home.blend
(2.73 MiB) Downloaded 204 times
it is a blender 2.8 file.
by frank_yifei
Sun Sep 01, 2019 2:53 pm
Forum: User Support
Topic: Environment lighting results different by cpu and opencl
Replies: 5
Views: 2885

Environment lighting results different by cpu and opencl

The scene is lit by sky and sun. I tried with only sky or flat colour, the difference is still there. Maybe it is a bug in opencl code.
both rendered 500 samples without any cache or other setting.
opencl
opencl.jpg
cpu
cpu.jpg
by frank_yifei
Sat Aug 31, 2019 9:54 am
Forum: Development
Topic: Env. Light Visibility Cache
Replies: 300
Views: 121906

Re: Env. Light Visibility Cache

I did a test with my internal scene. How to avoid the artefacts? The scene is lit by sun and flat colour world. Both results were rendered 100 samples. This is without env. cache untitled1.jpg with env. cache. map width 256 ,samples 1 untitled.jpg What's your clamping settings... If you want to use...
by frank_yifei
Sat Aug 31, 2019 5:53 am
Forum: Development
Topic: Env. Light Visibility Cache
Replies: 300
Views: 121906

Re: Env. Light Visibility Cache

I did a test with my internal scene. How to avoid the artefacts?
The scene is lit by sun and flat colour world. Both results were rendered 100 samples.
This is without env. cache
untitled1.jpg
with env. cache. map width 256 ,samples 1
untitled.jpg
by frank_yifei
Tue Feb 26, 2019 12:45 am
Forum: Development
Topic: PhotonGI cache
Replies: 1083
Views: 499666

Re: PhotonGI cache

maybe the brightness difference comes from tonemapping in camera setting, just guessing.
by frank_yifei
Wed Feb 20, 2019 12:10 pm
Forum: Development
Topic: PhotonGI cache
Replies: 1083
Views: 499666

Re: PhotonGI cache

For a test scene, I tried to make the caustic result look smoother so I increase lookup radius. I found a problem. using opencl + photonGI, setting caustic lookup radius higher will crash blender. The error message is "ERROR: clEnqueueWriteBuffer Error: Unrecognized Exception". Path cpu w...
by frank_yifei
Wed Feb 20, 2019 2:27 am
Forum: Development
Topic: PhotonGI cache
Replies: 1083
Views: 499666

Re: PhotonGI cache

For a test scene, I tried to make the caustic result look smoother so I increase lookup radius. I found a problem. using opencl + photonGI, setting caustic lookup radius higher will crash blender. The error message is "ERROR: clEnqueueWriteBuffer Error: Unrecognized Exception". Path cpu wo...
by frank_yifei
Sat Nov 03, 2018 6:36 am
Forum: User Support
Topic: is it possible to render caustics using path engine
Replies: 2
Views: 2208

is it possible to render caustics using path engine

I tried with latest blender addon to render a glass bottle with water, hoping to get a beautiful caustics effect. I thought it is a matter of rendering time, but after a long time of rendering with path engine, I only got a noise free result. the glass bottle itself looks the same with bidi render. ...