Tbilisi · GMT+4
Open for freelance · from $25/h
Unity Developer & Technical Artist
In game development since 2021 — gameplay programming and systems architecture fused with technical art: custom shaders, VFX and rendering optimization in URP & HDRP.
Unity Developer & Technical Artist — in game development since 2021.
(opens in new tab)Telegram @MATb_CONTROL (opens in new tab) or emailor email kartakcvc@gmail.com
Live shader · Frame: Night atmosphere · -- FPS ·
Aura Farming live on Steam · Reday-1 · jam games · more on request
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Live on SteamResults
Idle game, live on Steam since June 2026 under the studio's Fropy Studio label: 150+ reviews, Mostly Positive.
My part: ability VFX and character auras, UI and scene integration, post-processing setup and rendering optimization.
Built at Elven Empire · published under the studio's Fropy Studio label
Unreleased · Steam pageData-driven quest system, NPC navigation, save / load and custom editor tooling. Architected 10+ core systems while leading a team of 6.
Founder & Lead Game Developer, Homo-Ludens
Game jams
Playable · itch.ioBrowser platformer with tower-defence elements: stay on the platform and keep the generator alive. Built by a team of four in 72 hours for Indie Varvar's Jam #5 (Sep 2023).
Jam result: #6 of 63 entries in Graphics.
Programmer · credited on itch.io as ALEPACHO
Halloween Game Jam 20232D pixel-art horror story with dialogue scenes, made for Halloween Game Jam 2023.
Programmer
Solo · 12 h
Game jamsMore playable jam demos — including a full prototype designed and built solo within 12 hours.
Selection on request
Studio & freelance
In developmentStylized top-down RPG, in development. Custom grass rendering system — GPU instancing (DrawMeshInstancedIndirect), chunked loading, wind vertex animation — plus URP water & vegetation shaders and custom lighting.
CommercialClient-server architecture, progression and microtransaction systems for an online deck-builder auto-battler, designed to extend cleanly with new online features.
NITRATE · Infinite Garden · gameplay & VFX reel
MenuHow it's built: REMNANT · NITRATE · Infinite Garden · WindCore.hlsl · URP shaders · this page's background
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// Unity 6 URP · skybox shader · signed distance fields · real time
An 8 s loop from a real-time showcase scene: a knight in a rainy gothic town fires a beam at a monster that fills the sky. The monster has no mesh. The URP skybox shader draws it as a 2D signed distance field in the camera's view plane. The bone cage, the claws, the eclipse eye and the shaggy mass are all distance functions, so it adds no triangles of its own and stays sharp at any size. One temperature field crawls along the bones and takes its color from a blackbody ramp. Where it fades, the bones cool into crust and cracks. A fullscreen ink pass reads the monster's mask to draw the beams, the cut through its arm and the impact frames. Every motion is a closed-form function of time, so the loop has no seam.
570+ upvotes and about 48K views on r/Unity3D, Oct 2026
Knight, cathedral and town: CC models by other artists. Monster and shaders: mine. Models: BSP Colossal Gothic Cathedral by NeoKg (CC BY-SA 4.0); The Forgotten Knight by dark_igorek; Medieval house h2 by Annielighta; Medieval house (Generic Textures) by by__Rx; Medieval Houses (3 Pack) by Ajay Gawde; Medieval wooden cart by rakutin (all CC BY 4.0, Sketchfab); Gothic-Like Structures by loafbrr (CC0); Poly Haven (CC0). Moon maps: NASA's Scientific Visualization Studio. Sound: Sonniss GDC Game Audio Bundle recordings; BigSoundBank (CC0); OpenGameArt, Ylmir and WuxiaScrub (CC0).
// Unity 6 URP · Render Graph · Shader Graph · open source
A seamless 15 s silhouette loop. The light shafts are raymarched through the moon's shadow map at quarter resolution, so the turning sails cut the moonlight on every frame. All geometry is generated by code, one black Shader Graph material carries the wind through every pass, shadows included, and a custom Render Graph pipeline adds fog, a depth-blur ladder and a film print.
// blue-noise start offset, re-rolled 24 times a second
float t = tStart + stepLength * BlueNoise(p, _NitrateFilmFrame);
for (int i = 0; i < steps; i++)
{
float3 position = ray.origin + ray.dir * t;
float h = position.y - _NitrateBoxMin.y;
float density = exp(-h / _BeamHeightFalloff);
// 1 = lit by the moon, 0 = behind a sail
sum += MoonShadow(position) * density;
t += stepLength;
}2.46 ms GPU at 1080p on a laptop GTX 1650 Ti · 11.0 ms at 720p on Intel UHD with the Low preset
// Unity 6 URP · Render Graph · HLSL · open source
One 48 m tile of cubes is drawn as a 3D grid of instanced copies around the camera. The fog end distance is the view radius, so the fog decides how many copies get drawn, and the camera wraps around the tile to fall forever. The outlines follow Arthur Brussee's SIGGRAPH 2020 talk: a Render Graph pass finds each pixel's distance to the nearest depth or normal edge and draws an anti-aliased line from it, with no MSAA or TAA.
// the edge lies halfway between two pixels
float d = 0.5 * length(float2(kTaps[k]));
if (isEdge && d < distanceToEdge)
distanceToEdge = d;
// anti-aliased iso-line of the distance field
float coverage = saturate(0.5 * _EdgeWidth + 0.5 - distanceToEdge);3.6 ms GPU at 1080p on a laptop GTX 1650 Ti · 78 fps on Intel UHD with the low-end preset
// Tech Art · Shaders
A single WindCore.hlsl include drives grass, flowers and every wind-swayed object — layered value-noise / FBM for the breeze, a travelling gust wave for punchy bursts, and a per-vertex bend that sags instead of stretching. Depends only on _Time, so it costs nothing at runtime.
// travelling gust wave
float wavePhase = dot(worldPos.xz, dir) * 0.1 - time * 0.9;
float waveFront = smoothstep(0.90, 1.0, sin(wavePhase));
float totalWind = lightBreeze + waveMask * 0.7
+ windNoise * (lightBreeze + waveMask) * 0.4;
// bend the blade, then sag so it never stretches
worldPos.xz += (dir + swirlDir) * bend;
worldPos.y -= (1.0 - sqrt(1.0 - bend * bend)) * heightT * scale;One include animates grass, flowers & foliage — driven only by _Time.
// Shaders · Lighting · VFX
A single cohesive look across water, vegetation, character outlines and effects — built with custom HLSL and Shader Graph, custom lighting solutions, and gameplay / ambient VFX tuned for runtime performance.
One consistent art direction — grass, water, characters and effects.
// WebGL1 · GLSL ES 1.0 · no libraries
This page's background is a live fragment shader running over frames from projects I worked on: sine distortion, mip-bias blur, BT.601 luminance mapped onto a five-step palette, stepped caustics and rising bubbles — rendered at reduced resolution and paused when you can't see it.
Shader is off on this device (reduced motion / data saver / no WebGL).
Res 0.5× · Cap 30 FPS · Caustics 10 Hz · -- FPS now
Written up on r/Unity3D — Shader Graph, projection mapping, HDRP
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TutorialStep-by-step guide to a painted 2.5D look: a gray-box scene, a paintover projected back onto the geometry with camera projection mapping, and the Shader Graph setup behind it.
BreakdownWorld-space vertex snapping in a Shader Graph HLSL function that keeps skinned meshes and HDRP shadow maps intact, plus volumetric particle fog.
6 frames — lighting, VFX, environments
MenuGameplay, VFX and technical art — custom grass & water, dynamic lighting and cinematic scenes across shipped and in-development titles.
Tbilisi, Georgia · open for freelance · from $25/h
MenuUnity developer in game development since 2021, combining gameplay programming and systems architecture with technical art — shaders, VFX, animation and rendering / performance optimization.
Most recently at Elven Empire (Jan to Sep 2026): tech art on Aura Farming, live on Steam under the studio's Fropy Studio label with 150+ reviews, Mostly Positive. I made its ability VFX and character auras, handled UI and scene integration, post-processing and optimization, and built a custom grass rendering system with URP water and vegetation shaders for Apothecary's Dungeon. Before that I founded an indie studio and architected the core systems of Reday-1: a data-driven quest system, NPC navigation, save / load and custom Unity Editor tooling.
Since October I have been publishing real-time showcase scenes made in Unity 6 URP. The latest, REMNANT, draws a monster inside the skybox shader.
Seeking Freelance and contract work on Unity projects, and full-time Unity or tech-art roles.
Sep 2021 → now · 3 roles
MenuJan 2026 — Sep 2026
Elven Empire
Aura Farming (Steam, Fropy Studio label) · King of Merchants · Apothecary's Dungeon
Nov 2024 — Dec 2025
Homo-Ludens
Reday-1 (unreleased)
Sep 2021 — Present
Self-employed
Gameplay & progression systems for commercial, personal and game-jam projects
Toolbox — 6 sets
MenuMaster's · Bachelor · English B2
MenuMaster's
Peter the Great St. Petersburg Polytechnic University (SPbPU)
Bachelor
Ufa University of Science and Technology
Languages
Let's build something
Open for freelance and contract work on Unity projects, from $25/h, and for full-time roles. The fastest way to reach me is Telegram or email.
