The easiest way is probably to use an IES light. For example, at this site, you can find literally thousands from some different real-world manufacturers.
You just need to browse the library and look for one that suits your needs.
Search found 125 matches
- Wed Feb 10, 2021 11:53 am
- Forum: User Support
- Topic: How do I achieve this lighting setup? (photo example)
- Replies: 2
- Views: 1638
- Wed Feb 10, 2021 11:22 am
- Forum: User Support
- Topic: Getting a error when attempting to use the LuxCore online Library
- Replies: 5
- Views: 4371
Re: Getting a error when attempting to use the LuxCore online Library
That happens to me too on Blender 2.91.2, but it works fine on Blender 2.83.12. I think it means that the Blender developers changed something with the latest API version that isn't compatible with the way drag & drop works for this addon. You can work around the issue for now, by clicking exact...
- Wed Feb 10, 2021 10:02 am
- Forum: User Support
- Topic: MultiGPU stresstest - GPU(s) stop(s) calculating kernel
- Replies: 12
- Views: 4816
Re: MultiGPU stresstest - GPU(s) stop(s) calculating kernel
The latest LuxCore uses C++ code for rendering, by default, with the CPU (i.e. no need to use/have an OpenCL CPU device). To disable the CPU usage, you have to set the number of CPU threads to 0 by setting "native.threads.count" to 0. ... LuxCoreUI v2.4 (LuxCore demo: http://www.luxcorere...
- Sat Feb 06, 2021 11:25 pm
- Forum: User Support
- Topic: Texture won't apply correctly to some imported .obj models
- Replies: 4
- Views: 2222
Re: Texture won't apply correctly to some imported .obj models
Your cushion model also has a strange triangular look in the viewport there. Also check duplicate vertices. You can use merge by distance to remove doubles. It could possibly have broken custom split normals? If none of the other methods described here solve the issue yet, try selecting that object ...
- Sat Feb 06, 2021 11:09 pm
- Forum: User Support
- Topic: Metal Material
- Replies: 37
- Views: 24953
Re: Metal Material
Sorry, I'm relatively new to LuxCore. Welcome! :D I added a "Custom n, k Values" mode to the fresnel texture: But you told above that custom numbers are not exposed in BlendLuxCore. Any chance to have them exposed in Blender any soon, maybe at least in some beta version? Or do you mean yo...
- Sat Feb 06, 2021 10:53 pm
- Forum: User Support
- Topic: Texture won't apply correctly to some imported .obj models
- Replies: 4
- Views: 2222
Re: Texture won't apply correctly to some imported .obj models
Have a look in Blender to check Normals (face orientation) and UVs are correct
- Wed Feb 03, 2021 4:35 am
- Forum: User Support
- Topic: Indirect Specular pass problem
- Replies: 19
- Views: 8095
Re: Indirect Specular pass problem
You can denoise the caustics pass by turning off the Pixel Filter (setting it to None). Find it under Sampling > Advanced > Filter. It's probably set to Blackman-Harris at 1.50 pixels by default. That does not work well with noise from the Metropolis sampler
- Mon Feb 01, 2021 7:04 pm
- Forum: User Support
- Topic: Why is my Luxcore render look white?
- Replies: 4
- Views: 2723
Re: Why is my Luxcore render look white?
If you're sure you have assigned LuxCore materials (or using Cycles material adapter), make sure you have not selected the Material Override on the View Layer panel.
- Fri Jan 29, 2021 5:16 pm
- Forum: Works in Progress
- Topic: Simple glass with whisky and caustics
- Replies: 12
- Views: 10746
Re: Simple glass with whisky and caustics
The source of the problem is in having OIDN not really trained to denoise caustics, etc. I believe I have found the solution: Pixel Filter! I noticed that the pixel filter is by default in BlendLuxCore set to Blackman-Harris at 1.50 pixels. Even with 1024 light-path spp (thanks for the recent fix f...
- Wed Jan 27, 2021 7:41 am
- Forum: Works in Progress
- Topic: Simple glass with whisky and caustics
- Replies: 12
- Views: 10746
Re: Simple glass with whisky and caustics
This is LuxCore's beauty pass (DENOISED output) DuralexPicardie-01-LuxCore-denoised-pass.png This is what I get when I recombine all AOVs manually (denoised individually) DuralexPicardie-01-all-passes-recombined.png You can hopefully see that there is some highlight detail missing from the PhotonGI ...