Search found 24 matches

by XMAMan
Sun Nov 03, 2019 6:49 pm
Forum: Visuals, Tools, Demos & Sources
Topic: My first Supersize-Image
Replies: 19
Views: 6411

Re: My first Supersize-Image

He ultimatemau, thank you for you answer. All the Papers sounds good. I will look on that.
by XMAMan
Wed Oct 30, 2019 6:59 pm
Forum: Visuals, Tools, Demos & Sources
Topic: My first Supersize-Image
Replies: 19
Views: 6411

Re: My first Supersize-Image

The next little step: Unifying Points, Beams, and Paths in Volumetric Light Transport Simulation (UPBP) Finally after writing 435 UnitTests, to test every single Class/Sampler/SubPathSampler/FullPathSampler/PathcontributionCheck/Pdf match with Histogram-Test, I can now finally say, that I have maste...
by XMAMan
Thu Oct 03, 2019 7:41 am
Forum: Visuals, Tools, Demos & Sources
Topic: My first Supersize-Image
Replies: 19
Views: 6411

Re: My first Supersize-Image

Ok. Here is my next Participating-Media-Image: Clouds :o :o :o . For the sky I use the Model from Nishita and for the clouds the cumulus-cloud-modul from David Ebert. The images a rendered with 200 Samples per Pixel. I use lightsourcesampling on random points on the eye-path-segments and lightsource...
by XMAMan
Tue Aug 06, 2019 5:23 am
Forum: Visuals, Tools, Demos & Sources
Topic: My first Supersize-Image
Replies: 19
Views: 6411

Re: My first Supersize-Image

And this the Mirror-Box. Got the idea from dawelter^^
by XMAMan
Mon Aug 05, 2019 4:16 am
Forum: Visuals, Tools, Demos & Sources
Topic: My first Supersize-Image
Replies: 19
Views: 6411

Re: My first Supersize-Image

This is the well known water-cornellbox :)
by XMAMan
Mon Jun 24, 2019 3:56 am
Forum: Visuals, Tools, Demos & Sources
Topic: My first Supersize-Image
Replies: 19
Views: 6411

Re: My first Supersize-Image

In the next Image you can see the difference between single-scattering and multiple-scattering Image 1: Bidirectional Pathtracing (MultipeScattering) Image 2: Sampling a Particle-Point on the Edge from a Eye-Subpaht (Dont know the offizial name from this path-creation-sampling-routine) (MultipeScatt...
by XMAMan
Sat Jun 15, 2019 8:39 pm
Forum: Visuals, Tools, Demos & Sources
Topic: My first Supersize-Image
Replies: 19
Views: 6411

Re: My first Supersize-Image

Step 2: Rayleigh- and Mie-Scattering. For Rayleigh-Phase-Function-Direction-Sampling I used 'Importance sampling the Rayleigh phase function from jeppe' (Inverse CDF) For the Mie I use tabulation and the formula from 'ScratchAPixel Simulating the Colors of the Sky' For distancesamling, I use Raab-Wo...
by XMAMan
Fri May 03, 2019 3:45 am
Forum: Visuals, Tools, Demos & Sources
Topic: My first Supersize-Image
Replies: 19
Views: 6411

Re: My first Supersize-Image

Ok here is my first little step to subsurface scattering. I have extended my bidirectional pathtracing with Homogen-Media-Support. So I have now a unbiased estimator. The next steps will be Rayleigh,Mie-Scattering and inhomogeneous media.
by XMAMan
Thu Mar 28, 2019 5:12 am
Forum: Visuals, Tools, Demos & Sources
Topic: My first Supersize-Image
Replies: 19
Views: 6411

Re: My first Supersize-Image

I have used a sphere-light far away from the window instead a plain surface-light nearby the window. This leads to better shadows on the ground now.
by XMAMan
Thu Mar 21, 2019 2:39 pm
Forum: Visuals, Tools, Demos & Sources
Topic: My first Supersize-Image
Replies: 19
Views: 6411

Re: My first Supersize-Image

Here is my microfacet-Test-Image.

This is the isotrophic-ggx-normaldistirbution from walter
Microfacet-Walter.jpg
Microfacet-Walter
Microfacet-Walter.jpg (222.58 KiB) Viewed 736 times
and this is the anisotrophic-ggx-noormaldistribution from eric heitz, where I have sampled the visible normals
https://hal.inria.fr/hal-00996995v1/document
Microfacet-Heiz.jpg
Microfacet-Heitz
Microfacet-Heiz.jpg (221.06 KiB) Viewed 736 times