Lmst

Today's post was mostly made for myself as a kind of notebook for algorithms and derivations for a few common sampling method for #pathtracing. https://sibaku.github.io/site/sampling/ Whenever I wanted to look these up, I found either differing syntax, missing derivations, or just everything being scattered around. So I wrote it down and added interactive visualizations (just remade them all from the first version actually). Maybe useful to someone else! #math #computergraphics

Screenshot of a website about sampling in the context of computer graphics. On the left is a navigation bar. On the right is the content, in this case how to sample normals from the GGX distribution with javascript code. Below is a visualization, which can be played with dynamically on the site

Screenshot of the inverse transform sampling visualizer. Uniformly sampled points on the y-axis are projected onto the cumulative distribution function (CDF) of the base probability density function (PDF). Then the x-coordinate for that projection is found. This results in the points being more clustered where the PDF has a high value. In this case, the sinc function is used as a PDF (adjusted to fit the definition of a PDF)

Screenshot of a website about sampling in the context of computer graphics. In this case how to sample points from a uniform area circle with javascript code. Below is a visualization, which can be played with dynamically on the site

If #HalfLife3 is a game that requires RayTracing Hardware to play...

...Then I'm selling both kidneys.

#Videogames #Gaming #Games #HalfLife #Valve #Steam #SteamMachine #SteamFrame #SteamController #Hardware #PC #PCHardware #RTX #RayTracing #PathTracing

Bolt Graphics brings its RISC-V graphics cards to Ubuntu Summit — Zeus path tracing GPUs target film and animation industry | Tom's Hardware https://www.tomshardware.com/pc-components/gpus/bolt-graphics-brings-its-risc-v-graphics-cards-to-ubuntu-summit-zeus-path-tracing-gpus-target-film-and-animation-industry#:~:text=News,conversations%20in%20the%20current%20decade. #riscv #gpu #boltgraphics #ubuntuSummit #pathtracing

#gaming #Cyberpunk2077 #FSR4 #INT8 #PathTracing

RE: https://bsky.app/profile/did:plc:5bfppsyvb6w5nzbynm5bvuya/post/3m37lewfsvey2

Let's give this RX 7800 XT a run for its money. Can it path trace? ->

Cyberpunk 2077 - FSR 4 - INT8 - Path Tracing - RX 7800 XT

https://www.youtube.com/watch?v=1eJJ2VmCUUY

#gaming #Cyberpunk2077 #FSR4 #INT8 #PathTracing

YoutTube thumbnail: "FSR 4 INT8, RX 7800 XT, But Can It Path Trace?"

Sony and AMD tease PlayStation 6 with path tracing, AI features

Sony and AMD tease PlayStation 6 with path tracing, AI... #hardware #amd #sony #playstation #ps6 #pathtracing

https://fedia.io/m/hardware@lemmy.world/t/2839813

Overview of "Bolt Graphics" by #TechTechPotato.

https://www.youtube.com/watch?v=-rMCeusWM8M

#PathTracing

Get ready for F1 25 on May 30, bringing dazzling path tracing for your rig. EA's hefty spec sheet details settings from modest GPUs to 8K monsters & VR. New modes & LIDAR tracks are in too. #F125 #PathTracing #PCGaming

Soft shadows in voxel renders: control the size of the sun to sharpen/soften the shadows with `Sun Angular Diameter` in Avoyd `Tools > Light and Atmosphere`

Donwload #Avoyd 0.27 beta: https://www.enkisoftware.com/products

#Voxel #VoxelEditor #VoxelArt #Render #PathTracing

Inside a Menger sponge lit from above. The shadows are softer the further they are from their source. In this example using a very large sun, the distant ceiling casts very soft shadows in contrast to volumes casting sharp shadows on surfaces close to themselves.

In this Avoyd voxel render `Sun Angular Diameter` = 5 (larger sun -> smoother shadows.)

Inside a Menger sponge lit from above. The shadows are softer the further they are from their source.
This Avoyd voxel render uses the default sun size.
`Sun Angular Diameter` = 1

Inside a Menger sponge lit from above. All the shadows are sharp.

In this Avoyd voxel render `Sun Angular Diameter` = 0.1 (smaller sun -> sharper shadows)

#Avoyd #Voxel #Symmetry #Procgen #Abstract #VoxelArt #PathTracing #Render #3D #ScreenshotSaturday

Horizontal cut through a white and copper block bordered by light purple and red. The sky is white. Reflexions in the polished copper hint at more complex structures outside. Bounced light on the white floor and ceiling is purple and red.
Voxel scene procedurally generated and path traced in Avoyd.

#Avoyd #VoxelArt #Abstract #Voxel #PathTracing

Abstract white floor with a low ceiling open onto a grey sky, with a red greebled wall in the background. The sun light bounces reflecting the purple wall colours in places. Some floors and ceilings are highly polished, reflective copper.
Voxel scene procedurally generated and path traced in Avoyd.

You can make isometric #Voxel renders of any Minecraft map, voxel model or heightmap landscape you can import into Avoyd

https://enkisoftware.itch.io/avoyd/devlog/921830/creating-isometric-voxel-renders-of-minecraft-maps-voxel-models-and-heightmaps

#VoxelArt #3D #Isometric #PathTracing #Render #Minecraft #Avoyd

#HalfLife2RTX seems good, but is still a work in progress that will take a lot of time to tune since RayTracing kills performance and not all bugs have been ironed out.

#Videogames #Gaming #Games #RayTracing #PathTracing #DLSS #DLSS4 #NVIDIA #RTX #GeForce #HalfLife #Valve #Steam #HalfLife2

Just realised that in my software GPU wavefront pathtracing I could implement efficient virtual memory by storing any 'page miss' paths and then sort by page, load/unload pages and process the relevant paths.

Does anyone know if this has been done before?

#GPU #PathTracing #Avoyd #RayTracing

I'm just going to put here Pattrick Kennedy thougths from ServeTheHome about the #BoltGraphics Zeus:

https://www.servethehome.com/bolt-graphics-zeus-the-new-gpu-architecture-with-up-to-2-25tb-of-memory-and-800gbe/2/

The big elephant in the room is NVIDIA and the CUDA ecosystem. That's is going to be really difficult to break without something that disrupts the market.

#Hardware #PC #PCHardware #Videogames #Gaming #Games #PCGaming #PCGames #RayTracing #Simulation #STEM #PathTracing #Technology #Servers #Cloud #Infraestructure

Path traced procedurally generated #voxel world with the atmosphere volumetric shadows we fixed in the beta.
Download #Avoyd Voxel Editor and Renderer: https://www.enkisoftware.com/products

#voxelArt #3d #MastoArt3D #art #digitalArt #PathTracing #render #gameDev #indieDev #ProcGen #VoxelEditor