I have confused myself to the point where i dont know what up or down are. I will try to keep things focused, but certain decisions may need a paragraph of motivation.For some time now me and a ...

I would like to transfer the display content from computer S (sender) to another computer R (receiver). It is important that this transfer happens as accurately as possible in terms of color.My setup:...

In this note, I will argue that the jaggedness observed in rasterized images should not be referred to as aliasing.First, let us agree on a definition: aliasing is the distortion that arises when ...

I have been implementing a path tracer - while I initially started the process using a dummy Lambertian diffuse BRDF to focus on the base path tracer, I recently added a microfacet BRDF as an option. ...

When I was studying a code base of path tracing implementation (done in GLSL), I notice the author returned a pdf of generated camera ray:...

I'm looking at sampling a spherical light source, which may be partially occluded by the plane of the geometry. I've implemented a detection for this case, and skipped sampling if it's all occluded, ...

I've noticed that my implementation of GGX VNDF sampling produces quite a lot of bad samples (below the hemisphere). When such a sample occurs, I terminate the ray, leading to an immediate black pixel....

I'm currently trying some things with transmittance estimators in PBRT and I have implemented the following paper: Unbiased Ray-Marching Transmittance Estimator. This method assumes that two points $x$...

If in the path tracing use case, I have some sampling strategies to sample a scattering direction in a 2D space ($\theta, \phi$). Of course, I need to convert it to a 3D direction vector (with length ...

I am looking for an algorithm (also ideas on possible directions are appreciated) which is able to compute the distribution of ellipses on a 2D surface in order to reach a good degree of covering.I ...

I'm trying to make intuitive sense of the rendering equation and so I'm trying to work out a trivial example by hand, though ultimately I'm just trying to understand how monte carlo importance ...

My understanding is that path tracers deal with radiance because radiance is constant along a ray. You simply go through and evaluate the light transport equation:$$L_o(p, \omega_o) = L_e(p,\...

I'm building a little 2D graphics library in Rust/WGPU as a means to learn graphics programming. I want to draw an outline around a shape and specify the outline's color. All of my shapes have a ...

Equiangular sampling is a sampling method for point (sphere) emitter in scattering medium. While it claims to be very efficient when dealing with point (sphere) emitter in scattering medium (see this ...

I am trying to implement a simple shader. A round ball object is rendered with uniform albedo and I noticed some strange white spots on the outputs.I perform importance sampling with 512 light ...