Search found 45 matches

by zeealpal
Fri Oct 09, 2020 3:14 am
Forum: User Support
Topic: CUDA Kernels
Replies: 2
Views: 177

Re: CUDA Kernels

Are you using a utility that clears out your temporary files on Windows (CCleaner etc...?)

%temp%\luxcorerender.org\ocl_kernel_cache contains the OpenCL kernel, if that gets wiped it needs to recompile it.
by zeealpal
Wed Oct 07, 2020 2:18 pm
Forum: User Support
Topic: Darkness in transparent surface ?
Replies: 12
Views: 433

Re: Darkness in transparent surface ?

Not sure if you've tried already, but does the caustic cache yield any decent results? If the camera is the only thing moving, then it wouldn't need to be recalculated between frames.
by zeealpal
Wed Oct 07, 2020 1:49 pm
Forum: General Discussion
Topic: Lux it! RenderFarm (analogue of Sheepit for Luxcore)
Replies: 25
Views: 857

Re: Lux it! RenderFarm (analogue of Sheepit for Luxcore)

You have no idea how much you are speaking to me right now! I have ~8million points on SheepIt, but almost always render everything I do with LuxCore on my own PC. One of the hardest areas is the variation of GPU rendering drivers, SheepIt sets its own settings based on the host client. OpenCL/CUDA,...
by zeealpal
Wed Oct 07, 2020 4:52 am
Forum: User Support
Topic: Colored Wine Bottle Glass - cant get physically correct
Replies: 2
Views: 205

Re: Colored Wine Bottle Glass - cant get physically correct

Had a look by taking a photo of a white wall at my place, it looks a lot closer to a 4000k lamp then 2700k (the photo). If the lamp is indeed 2700k, what white point was your camera using? You will also need to match the cameras settings as well as the lighting settings. I noticed there is no ambien...
by zeealpal
Wed Sep 16, 2020 10:24 pm
Forum: User Support
Topic: Trouble with glass reflections
Replies: 23
Views: 1171

Re: Trouble with glass reflections

Nota solution to the noise, but have you tried using OIDN via the compositor instead? I can't find it at the moment, but I remember a video that denoised the passes individually and combined them, and it did work better for something I rendered.
by zeealpal
Fri Jul 24, 2020 4:22 am
Forum: User Support
Topic: The Firefly Question
Replies: 2
Views: 454

Re: The Firefly Question

Hi Theo, Basically what your trying to render is called a Specular-Diffuse-Specular (SDS) path. This can't be rendered properly by light tracing or bidirectional (although might tracing may be useful for other areas of a scene). If the lamp has an intersectable area some do get rendered, but that is...
by zeealpal
Wed Jul 22, 2020 4:44 am
Forum: User Support
Topic: How do I turn off the shadow?
Replies: 2
Views: 608

Re: How do I turn off the shadow?

Edit: Looks like I was wrong, learn something new every day. From the websites landing page: LuxCoreRender is a physically based and unbiased rendering engine. Based on state of the art algorithms, LuxCoreRender simulates the flow of light according to physical equations, thus producing realistic im...
by zeealpal
Fri Jul 10, 2020 6:45 am
Forum: User Support
Topic: Air bubbles inside liquid
Replies: 8
Views: 823

Re: Air bubbles inside liquid

Hi, What’s the correct way to create air bubbles inside liquid? Right now I’ve got the normals of the air bubble meshes inverted inside the liquid mesh, but it looks odd. Maybe the right way is to not invert the air bubble normals, but assign a separate material with an IOR of 1.0 to it? Thanks in ...
by zeealpal
Sun Jun 21, 2020 1:53 am
Forum: Finished Work
Topic: New jewelry animation with Luxcore 2.3
Replies: 1
Views: 631

Re: New jewelry animation with Luxcore 2.3

A really nicely done animation, congratulations!

I did find watching it at 2x speed gave the animation a more fluid feel :)
by zeealpal
Tue Jun 16, 2020 11:39 am
Forum: User Support
Topic: Caustics by Imagemap bumps
Replies: 2
Views: 534

Re: Caustics by Imagemap bumps

A tip, try scale your scene to a realistic size, your scene would be 100's of meters large if it were real, that's why you needed a noise size of 50 instead of 1, as well as the spot lamp you used being 1 million lumens! Press 'CTRL-A', 'S', '0.01', 'ENTER' and then change the noise size and lumens ...