Lumen

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is dielectric material issue?

3

I try to render scenes\cornell_box\cornell_box_dir.json  when I change glass sphere material to "type": "dielectric" I have different image  i.e. roughness = 0.0 why images are different?

tigrazone

Investigate the slowdown with VCM

6

Compared to 2022 drivers, the current version of the VCM algorithm seems a lot slower (~%50% !). Investigate why.

yuphin

D:\Git\Lumen\out\build\x64-Debug\LINK : fatal error LNK1104: 无法打开文件“spirv-cross-cored.lib”

1

kyriewxcode

Bloom explosion : )

1

Enough time : ) This does not really affect me.

ohmaya

How do I add lights to an XML scene?

2

Yeah, it might be a Mitsuba question. I took scenes/classroom/scene.xml and added the following: ``` ``` There didn't seem to be new lights in the rendering. scenes\bedroom\scene.xml contains 2 area...

ohmaya

Lumen.exe scenes/bedroom/scene.xml - Path: Bright sky through the window behind the curtain - **BDPT/VCM/ReSTIRGI: Black sky** Thanks.

ohmaya

- remove shader compiler in code. Use precompiled spv - use rayQuery pipeline, not RayTracing pipeline. RayQuery is faster and easy to use

tigrazone

Since the rework of BSDFs, there seem to be some darkening in the image produced by bidirectional integrators. This shouldn't happen as they are all unbiased in the limit.

yuphin

I research parts of VCMRestirData usage and seems some fields not used or off by default. For which purpises fields of VCMRestirData used and why not all fields used?

tigrazone

after press F10 shown message about image is saved but resulting file contains only black. can it be fixed?

tigrazone