Shahriar Shahrabi | شهریار شهرابی @IRCSS Twitter profile | Pikagi

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Shahriar Shahrabi | شهریار شهرابی

@IRCSS

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An Iranian game developer. Creative lead on #PuzzlingPlaces in @realities_io . Made #SuperFlight in @_grizzlygames

Berlin

https://t.co/4YbfkZg9Pe

Joined January 2014

Don't wanna be here? Send us removal request.

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@IRCSS

Shahriar Shahrabi | شهریار شهرابی

5 years

A series of paintings I did inspired by Iranian palaces of different era. Out of all the projects I have done, these have been the most fun. Alot of research went in to these. (thread) 1.Temple of Annahita (also Tomb of darius the great) 2.Persepolis 3.A fantasy palace 4.Isfehan

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@IRCSS

Shahriar Shahrabi | شهریار شهرابی

2 years

Tested using #dalle for texture fixing and texturing. It is going to save us so much time, if we streamline the workflow. #dalle2

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@IRCSS

Shahriar Shahrabi | شهریار شهرابی

4 years

I did a detailed break down of the Matrix VFX as a shader study, with a triplanar implementation on a static scene. Original shader by Will Kirby you can find the code on my Github: And the break down in this post:

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@IRCSS

Shahriar Shahrabi | شهریار شهرابی

5 years

A fun shader I wrote last year for @realities_io It is a screen space fog which tries to imitate scattering. I blur the pixel to different extends based on how much fog it is receiving. Also darkening the pixels for energy conservation. Looks awesome in VR

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@IRCSS

Shahriar Shahrabi | شهریار شهرابی

5 years

Animating statues with a look at transformation matrix in @unity3d only in code and without any rigging. Code, explanation and the model below: #screenshotsaturday #unitytips Blog post: Code on Github:

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@IRCSS

Shahriar Shahrabi | شهریار شهرابی

5 years

Since last one was subtile, decided to try something less subtle. Still doesn't make me sick in VR. Although it does overwhelm. #screenshotsaturday #madewithunity Mesh from @realities_io

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@IRCSS

Shahriar Shahrabi | شهریار شهرابی

2 years

This is peak 3D art. By Li DeCai

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@IRCSS

Shahriar Shahrabi | شهریار شهرابی

4 years

Finally done🥳🥳. Procedural Painting Algorithm implemented in Compute Shaders in @unity3d inspired by @anastasiaopara work. You can download the project and throw your own images in there. Code: Blog post:

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@IRCSS

Shahriar Shahrabi | شهریار شهرابی

3 years

My "Gentle Introduction to Realtime Fluid Simulation for Programmers and Technical Artists" made in @unity3d using compute shaders. Avoiding condense mathematical expressions I try to demystify Realtime Fluid Simulations.🌊 For write up and source code:

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Shahriar Shahrabi | شهریار شهرابی

5 years

More projection matrix manipulation #madewithunity Looks amazing in VR

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@IRCSS

Shahriar Shahrabi | شهریار شهرابی

2 years

Made this orange still life study based on the @LightningBoySt1 workflow with projection mapping and photoshop in #Blender3d You can view/ download the mesh on my @Sketchfab

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@IRCSS

Shahriar Shahrabi | شهریار شهرابی

2 years

Graphic programmers/ technical artists when they see Mie scattering somewhere.

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@IRCSS

Shahriar Shahrabi | شهریار شهرابی

11 months

I can confirm that you can do chores with Quest 3 on

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@IRCSS

Shahriar Shahrabi | شهریار شهرابی

1 year

I have been playing around with generating chinese landsacape paintings in blender geometry node using vornoi noise. Hopefully I can finish the write up until tomorrow and share the nodes

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@IRCSS

Shahriar Shahrabi | شهریار شهرابی

1 year

Whether Unity backtracks or not, the fact that these decisions made it through leadership, legal, marketing and employees, says a lot about the organizational health of the company. As a partner, Unity is a source of unknown amount of risk. Making new games on it would be unwise

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Shahriar Shahrabi | شهریار شهرابی

3 years

Blender changes the geometry nodes from attribute to fields in 3.0 It took a while to get used to, but it is working great! Here are some flowers.

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@IRCSS

Shahriar Shahrabi | شهریار شهرابی

3 years

Spend my Sunday writing a blog post on my fluid simulation stuff and making graphics for it. I was reminded again, that even after months of working on a topic, I haven't truly understood it until I try to teach it to someone else!

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Shahriar Shahrabi | شهریار شهرابی

5 years

I am writing a substance painter like painting tool for Unity. You can paint directly in texture of the mesh (for now only albedo but it can easily be extended to all maps). Still some issues with uv bleeding on the edges of the islands. Code and write up code next week

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@IRCSS

Shahriar Shahrabi | شهریار شهرابی

5 years

Done with my grass #unity #shader for now. Here is the code for whoever is interested and a blog post for the tech enthusiasts. Github: Post: I am using textures from @DeepSpaceBanana based on shader implemented by @BruteForceGame

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Shahriar Shahrabi | شهریار شهرابی

5 years

This is fun :D applied my texture painting tool which I wrote over the weekend in @unity3d for a @realities_io prototype. Mesh from @Azadux

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Shahriar Shahrabi | شهریار شهرابی

5 years

#unitytips Updated my camera movement script to enable animation of fieldOfView using mouse scroll, code: @unity3d Btw a technical write up on the fog is coming tomorrow.

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@IRCSS

Shahriar Shahrabi | شهریار شهرابی

4 years

The moebius transformation stuff I was doing is on my github: It is based on @KangarooPhysics code. Made in @unity3d

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Shahriar Shahrabi | شهریار شهرابی

2 years

I love transformation matrices. Tandis feels like a game hand made for me! I think a lot of tech artists/ graphic programmers will love this game, it is like SDF shape/ space manipulation with a UI and gamified You can get it on steam

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Shahriar Shahrabi | شهریار شهرابی

3 years

First implementation of the caustics, which I am calculating using a sobel filter from the pressure buffer and a raycast with plane line intersection. Physically it doesn't make much sense, since I should highlight peaks, I tried that, but this looks better... so #VFXfriday

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Shahriar Shahrabi | شهریار شهرابی

3 years

Continuing with the geometry node experiments! I am a lot closer to what I need for my scene. And I think I finally wrapped my head around all the context based stuff in geometry nodes and fields. #VFXFriday

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@IRCSS

Shahriar Shahrabi | شهریار شهرابی

5 years

Transformation Matrices Cheat Sheet for Tech Artists. Writing this helped me a lot to solidify the things I have learned in the past few months. Article: Code:

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Shahriar Shahrabi | شهریار شهرابی

5 years

Everyone is playing with water #shader . So I decided to give it ago too :D made with @unity3d mesh from @Azadux

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Shahriar Shahrabi | شهریار شهرابی

3 years

My final entry to the #TechnicallyAChallenge from @HarryAlisavakis discord: Art by Artist of your choice. I took the Vast Land, a thousand years old painting of Song dynasty China. A post with break down: #screenshotsaturday

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Shahriar Shahrabi | شهریار شهرابی

3 years

Finished writing the "Gentle Introduction to Fluid Simulation for Programmers and Technical Artists" blog post. (I will post it this Tuesday) Today I added higher frequency detail to the water through noise (higher than the simulation grid) #screenshotsaturday

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Shahriar Shahrabi | شهریار شهرابی

5 years

Respect for the devs who worked on this. This is gorgeous tech art!!

@James_Jarvis

James Jarvis

5 years

Fortnite's season X event, The End, just wiped out the whole island #Theend #Fortnite #PS4share

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Shahriar Shahrabi | شهریار شهرابی

3 years

I put the tree generation with geometry nodes on Github: The node tree is fairly clean and I also wrote some explanation for what I am doing on the readme, so might be useful for people who want to get started with geometry nodes #b3d

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@IRCSS

Shahriar Shahrabi | شهریار شهرابی

5 years

A faster paced version for those with no patience. @madewithunity and compute shaders. The handsome young man is @Azadux

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Shahriar Shahrabi | شهریار شهرابی

4 years

Mesh deformation on oculus quest using #computeShaders and hand tracking. I will put the code, explanation and the apk next week. I still have to improve performance and improve the interaction feel. #gamedev #madewithunity

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Shahriar Shahrabi | شهریار شهرابی

5 years

Put some gerstner waves on @Azadux volumetric photogrammetry selfie

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Shahriar Shahrabi | شهریار شهرابی

6 years

If you sample your own shadowmaps in Unity, you can for example do outlines for the shadows. (shader code in pastebin) #unitytips #shaders #artstyle

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Shahriar Shahrabi | شهریار شهرابی

1 year

Making diagrams in shader for a blog post. Constructing triangular waves from a line.

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Shahriar Shahrabi | شهریار شهرابی

3 years

yayy, my first game on PlayStation!! 🎉 From time to time I get this surreal thought, "how did this happen?" I never planned or thought I would be a game developer

@PlayStation

PlayStation

3 years

Dive into the meditative flow of virtual reality puzzling. Put together 3D jigsaws of beautiful places around the globe when Puzzling Places comes to #PSVR later this winter:

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Shahriar Shahrabi | شهریار شهرابی

5 years

What a time to be alive, this was 30 minutes of capture. Technology has come far. I also captured alot of the surround, this is on a beautiful hill, however my 16 gb laptob is not enough to process this. Can't wait to run this in our in house app @realities_io

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Shahriar Shahrabi | شهریار شهرابی

5 years

I was unhappy with how jiggly the camera movement was in the fog recordings. So went and reworked my camera movement to have filtering. It moves the camera in game view similar to scene view plus filtering. Code: #UnityTips

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Shahriar Shahrabi | شهریار شهرابی

5 years

The raymarching code is on GitHub. Github: Small explanation: #unity3d #raymarching

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Shahriar Shahrabi | شهریار شهرابی

4 years

Photogrammetry in the mountains. 2.4k meters.

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Shahriar Shahrabi | شهریار شهرابی

5 years

Finally found the time to do a quick write up on the deformation matrices I was using before on some of the @realities_io meshes. Here you find the explanation as well as a link to the shaders @unity3d #unitytips #madewithunity

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Shahriar Shahrabi | شهریار شهرابی

4 years

Done with the Cubism Effect, made in @unity3d . Code: Blog Post for technique explanation: Download it to try it out on PC or VR: Mesh is from @Hallwylska captured by @ErikLernestal

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Shahriar Shahrabi | شهریار شهرابی

2 years

The second scene I made inspired by @Iraville_de works. Everything is fully procedural using Blenders geometry nodes. The texturing is also fully procedural using materials. The model is available for view/ download on my @Sketchfab -->

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Shahriar Shahrabi | شهریار شهرابی

5 years

Blueprint #shader with depth peeling code in #unity is online. Meshes used in videos are from @realities_io @Azadux Code: Post: video:

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Shahriar Shahrabi | شهریار شهرابی

3 years

My scan of Moosstock Mountain Peak 3024 m. It was a lovely day long climb, you can see a tiny me in the scan, tired from a 5 hour climbing. You can view the model on my @Sketchfab

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Shahriar Shahrabi | شهریار شهرابی

2 years

Code and write up for the procedural stylzed scene I made in Blender Geometry Node. This is also documentation for myself, hopefully I can use this at a later date to reduce the warm up time of starting with Geometry Nodes.

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Shahriar Shahrabi | شهریار شهرابی

4 years

Tried crowed sourcing one my most "want to scan" places in Iran. Nasir al-Mulk Mosque

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Shahriar Shahrabi | شهریار شهرابی

5 years

I am developing a habit of aligning everything in my code. Though I do believe it makes everything more readable, the satisfaction I feel from doing it is way too much for this to be healthy

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Shahriar Shahrabi | شهریار شهرابی

4 years

Inspired by @Mrdodobird 's projection mapping tips, made a 3D model of a watercolor painting very quickly without the need of much per hand texturing. The model on @Sketchfab : And a short "how to" post: #blendertips

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Shahriar Shahrabi | شهریار شهرابی

4 years

Sketchfab is empowering a whole genre of art by making sharing of beautiful VR paintings and hand made models accessible. If you have never been exposed to this, have a look at these:

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Shahriar Shahrabi | شهریار شهرابی

4 years

I started writing a render engine in C++ to learn both c++ and graphic APIs. The code needs a massive refactoring, but sofar I have learned an unbelievable amount and had tons of fun. Mesh in the video is from @Azadux and @realities_io #gamedev

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Shahriar Shahrabi | شهریار شهرابی

4 years

Start of my cubism shader. It makes such weird shapes, love it so far.

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Shahriar Shahrabi | شهریار شهرابی

5 years

Rasterized objects now cast shadows on raymarched volumes via #unity standard shadow mapping (with cascaded and all). Code with a bit more indepth explanation comes on monday #raymarching #screenshotsaturday

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Shahriar Shahrabi | شهریار شهرابی

2 years

For this #TechnicallyAChallenge from @HarryAlisavakis , I decided to try out the Midjourney to 3D workflow (short explanation below). You can view the model on my @Sketchfab :

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Shahriar Shahrabi | شهریار شهرابی

3 years

Phone scanning is getting so good. This is with a S20+. It is still nosier than DSLR with a large sensor, but so much more convenient to carry around. The modeled is not textured btw, just vertex colors

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Shahriar Shahrabi | شهریار شهرابی

1 year

Day Night cycle LUT fragment shader! I cover the shader code as well as has how to achieve the look. Code and explaination:

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Shahriar Shahrabi | شهریار شهرابی

4 years

The painting process is based on Genetic Evolution Algorithm. You give it a picture, it gives you a painting. The painting in the video is based on a picture by @liamwong

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Shahriar Shahrabi | شهریار شهرابی

4 years

example of non affine transformation matrix. Looks like one of my shader experiments😅😅, but it is actually a photogrammetry scan on @Sketchfab

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Shahriar Shahrabi | شهریار شهرابی

2 years

For this #TechnicallyAChallenge from @HarryAlisavakis , I decided to mock up a memory of my childhood. An Iranian lunch! You can view/ download the model on my @Sketchfab :

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Shahriar Shahrabi | شهریار شهرابی

3 years

Another of my scans in Alps, Zwoelfernock Mountain Peek 2516 m 8252 ft. In the pano you can see two other peaks I have scanned plus one waterfall which @Azadux has scanned, all are linked in annotations. You can view the model on my @Sketchfab

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Shahriar Shahrabi | شهریار شهرابی

1 year

3D Procedural Chinese Landsacape Paintings in Blender Geometry Node using voronoi noise. There is an example version of a model on my @Sketchfab and you can grab the explaination, model and nodes here:

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Shahriar Shahrabi | شهریار شهرابی

6 years

#unitytips you can lerp between the project matrix of two cameras to get transitions and effects such as perspective to ortho, dont forget to also set the properties of the camera to the new matrix: m_camera.projectionMatrix = Mathf.Lerp(cam1Mat, cam2Mat);

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Shahriar Shahrabi | شهریار شهرابی

4 years

Progress on the cubist shader. Now I rotate the camera per segment after displacing it, to look at the projection of the voronoi segment on the camera forward axis. Code is already on Github Mesh you need to grab from sketchfab. Blog posts comes later

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Shahriar Shahrabi | شهریار شهرابی

6 years

A littile #VisualStudio and #unitytips . If you press ctr+k+c you can comment out a selection, ctrl+k+u uncomments the selection. You can also select only a part of a line and comment that out.

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Shahriar Shahrabi | شهریار شهرابی

3 years

Added color variation to the repo for the fully procedural trees made with geometry nodes #b3d The trees are now lower poly, denser, and have procedural materials for woods and leaves

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Shahriar Shahrabi | شهریار شهرابی

4 years

I have to confess, even I am not sure I want to try this in VR hahaha

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Shahriar Shahrabi | شهریار شهرابی

1 year

Converted my Batalha 🇵🇹 scan to night time using LUTs. I will post a blog post in a couple of weeks covering the shader code and explaining the process. For now here is the mesh on my @Sketchfab :

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Shahriar Shahrabi | شهریار شهرابی

3 years

My talk in GDC india, Maths and Shaders, Why You Should Learn Linear Algebra is online. I had to tragically switch to a worse microphone because the neighbor started drilling 2 minutes before the beginning of the talk

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Shahriar Shahrabi | شهریار شهرابی

5 years

made some progress on my #raymarching . I am using a two pass rasterization (back and front face) + command buffers to construct a raymarching volume (would work with any water tight mesh). Added blue noise per @Atrix256 suggestion. Code will come tomorrow, gotta clean up.

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Shahriar Shahrabi | شهریار شهرابی

1 year

That sounds terrible. That adds up to 4 and half years of 8 hours a day. You could learn the piano in that time, get a phd, learn to dance, write poetry, paint, climb mountains, read hunderds of books, play hundreds of smaller, intriguing games...

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Shahriar Shahrabi | شهریار شهرابی

4 years

In case anyone doubted that this was made with @unity3d

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Shahriar Shahrabi | شهریار شهرابی

5 years

I am bedridden with cold, but still managed to get this one out. Shadow mapping in Unity, sampling shadow maps casted by rasterized objects on a raymarched volume. Article: GitHub: #unity #raymarching #shadowmapping

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Shahriar Shahrabi | شهریار شهرابی

4 years

Made a small sword aura effect in @unity3d with shaders, inspired by @HarryAlisavakis sword effect which was inspired by @randomspirits art. Code on my github: Detailed break down blogpost: #unitytips

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Shahriar Shahrabi | شهریار شهرابی

2 years

Late to the snow challenge, but here is my entry. Everything seen here is done procedurally in Geometry nodes and shader in blender (blog and code comes later) #TechnicallyAChallenge The style is heavily inspired by @Iraville_de Model on my @Sketchfab

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Shahriar Shahrabi | شهریار شهرابی

1 year

Years ago someone told me the best way to draw a sin wave in a shader is by using a derivative. (due to anti aliasing and to have a constant width line). I didnt get it. Years later, preparing my slides for a talk at 12 in the night, I finially did 🥹

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Shahriar Shahrabi | شهریار شهرابی

5 years

How did I not know this? All those materials I created but never destroyed 😱 #unitytips

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Shahriar Shahrabi | شهریار شهرابی

4 years

I was probably the last person on earth who didnt know this, but just found this out a few days ago. Made life so much easier. You can type cmd in the path bar in windows, to open a cmd window with that path as your current directory.

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Shahriar Shahrabi | شهریار شهرابی

4 years

I finally found some drone people in Iran on Instagram, I am trying to mesh some of the videos for my reference library for paintings. Here are a bunch of them from Isfahan. Original video:

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Shahriar Shahrabi | شهریار شهرابی

5 years

Started writing a cheat sheet blog post for matrices for tech arts (coming soon). It is getting longer and longer. Wanted to give a shout out to editor, you can make mathematical notation with ease online

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Shahriar Shahrabi | شهریار شهرابی

5 years

Crazy how more chilled people are in Portugal about drones than germany. I never had such a relaxed capture. The place was full of tourists, no one cared. I am experimenting with different capture patterns for reliable alignment for bigger locations. Good sofar. @RealityCapture_

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Shahriar Shahrabi | شهریار شهرابی

4 years

Bought two new books today. Really looking forward to reading them! @EricLengyel

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Shahriar Shahrabi | شهریار شهرابی

2 years

Cologne Cathedral. It is available for download on my @Sketchfab :

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Shahriar Shahrabi | شهریار شهرابی

3 years

My post on Color Theory for Games, Art and Tech. I cover: - color as light - As activation of receptors in our eyes - Perceptual colors - Color spaces Color in Composition: - Readability - Color harmony - Emotional Resonance - Visual Interest

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Shahriar Shahrabi | شهریار شهرابی

2 years

A more entry level tech art post: Optimized Detail Animation in Vertex Shader for Mobile in UE4 🎊 The chime animation you see is done in vertex sahder procedurally in a single draw call, pivots are encoded in UVs. For more info read the post:

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Shahriar Shahrabi | شهریار شهرابی

4 years

Super nice post on MSAA by @MyNameIsMJP I was not aware of the issue of MSAA with HDR. Glad I read this article.

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A Quick Overview of MSAA

You can find an ad-free static site version of this post here: Previous article in the series: Applying Sampling Theory to Real-Time Graphics Updated 1/27/2016 – replaced the MSAA partial cov…

mynameismjp.wordpress.com

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Shahriar Shahrabi | شهریار شهرابی

5 years

Finally found a bit of time to push this. The latest stage of my grass stuff is now on git. #shader #gamedev #unity3d Git: Medium:

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Shahriar Shahrabi | شهریار شهرابی

5 years

Some less intense stuff with @realities_io meshes. Combining with some other cut in and out, this can be a very good fade in transition of a photogrammetry scene. #madewithunity

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Shahriar Shahrabi | شهریار شهرابی

1 year

Some kind soul mentioned on Reddit after seeing my latest project that there is a procedural vector based chinese painting generator

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Shahriar Shahrabi | شهریار شهرابی

4 years

Ported one of my favorite noise functions to #Unreal material editor as a material function. I haven't used node based in a while, I still hate the fact that things don't 100 percent align. #gamedev

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Shahriar Shahrabi | شهریار شهرابی

2 years

A new blog post, Introduction to Art Direction for Games. A documentation of my journey of venturing into the world of art direction as a programmer. 🖌️

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Shahriar Shahrabi | شهریار شهرابی

3 years

Remember the time you couldnt take a photo in a room because it was too dark? This scan was done in the middle of the night using a mobile phone. I wasn't expect it to be this clean, how far we have come! You can download the model on my @Sketchfab

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Shahriar Shahrabi | شهریار شهرابی

3 years

most graphics book have their own section on introduction to linear algebra. I have never skip this part, and somehow still learn new things everytime. Different people have different ways of intuitively understanding maths, and every new take gives me a bigger picture.

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Shahriar Shahrabi | شهریار شهرابی

4 years

@timsoret Only after I started graphic programming, did I realize that the painting scene is full of widespread misconceptions like these, from speculars, to perspective, color theory and color spaces. There are a lot of painters that nail all those though. I wonder... 1/2

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Shahriar Shahrabi | شهریار شهرابی

4 years

Improvement to the fake 3dness of the 2d fluid simulation. I just realized my pressure buffer has negative values 😅 although physically that makes no sense to me. I need to reread the papers to see why that could happen.

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