Cetharia

One platform.
Four connected modules.

Cetharia is Holixora Digital Technology's main product for architecture and construction studios. A drawing is uploaded once, and volume, visuals, and clash checks all read from that same source, so there is no re-entering data and no version drift between documents.

Domaincetharia.com

ModulesStudio, Visualisasi AI, Design Intelligence, Superimpose

ModelTeam subscription or white label

Cetharia: Drafting

Studio

Live

A 2D CAD engine built in-house, right in the browser.

The drafting layer of Cetharia, our platform for architecture and construction. No app to install: drawings save straight to the same project server that feeds cost calculation and rendering. A from-scratch CAD engine designed around how architecture teams actually draft.

Full drawing toolkit: lines, polylines, rectangles, circles, arcs, text, dimensions, offset
Six snap types, ortho mode, grid snap, coordinate command line
DXF R2018 import/export with layers and dimensions, print to A4
10,000 drawn objects stay smooth at 60 fps

Open product

Cetharia: AI Rendering

Visualisasi AI

Live

Nine rendering modes, from a hand sketch to a photorealistic render.

Turns a sketch, floor plan, or 3D screenshot into presentation-ready visuals. Cetharia routes each render mode to whichever AI provider suits it best, and credits are only spent after a render actually succeeds.

Soft Render, Realistic, Enhance, Upscale to 4K
Material swap by zone mask, Multi-Angle, Animation walkthrough
Mass Render and full Masterplan site rendering
Credit-based pricing, deducted only on successful render

Open product

Cetharia: Bill of Quantities

Design Intelligence

Live

From working drawings to a signable Bill of Quantities.

Converts DXF, DWG, or PDF drawings into itemized work volumes across three disciplines. AI locates the elements in the drawing; every contract number, concrete, rebar, formwork, point counts, and pricing, is computed by deterministic code, not guessed by AI.

Three disciplines: Structure, Architecture, and MEP
Indonesian Quantity Surveyor format: tiered sections, per-floor detail, VAT, recap
Unit prices you enter become your studio's own price library over time
Export to PDF and Excel; final export stays locked until review clears
0.2% median quantity variance against QS-built reference BOQs (v24b evaluation)

Open product

Cetharia: Clash Detection

Superimpose

In Development

Clash detection that reads flat CAD drawings.

Overlays drawings from different disciplines and finds clashing points before construction starts. Runs inside Cetharia on the same projects, drawings, and team accounts. Rules are deterministic and explainable: the first phase covers Structure against MEP.

Aligns Structure and MEP drawings on one coordinate system, straight from DXF
Deterministic, explainable clash rules
Every finding cites its location, drawing layer, and measured distance
Being developed with Lumbung Architect as our first white-labeled partner

Open product

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One platform.Four connected modules.

Studio

Visualisasi AI

Design Intelligence

Superimpose

Need a system for your business?

One platform.
Four connected modules.