HomeCategoriesPerception & Optical Illusions

👁️ Perception & Optical Illusions

How the brain interprets light, colour, motion and depth. Interactive optical illusions and visual experiments.

150 simulations60 fps real-time0 install steps
Motion AftereffectStare at a rotating spiral for 20 seconds (adaptation phase), then stop — the static spiral… Colour Contrast IllusionsThree classic colour perception illusions: simultaneous lightness contrast, Mach bands at… Optical Illusions — Visual Perception GalleryInteractive gallery of 8 classic optical illusions: Müller-Lyer, Ebbinghaus, Café Wall,… Gestalt Grouping PrinciplesNewInteractive demos of how the visual system organises elements into wholes: proximity,… Retinal Photoreceptor AdaptationNewRod and cone phototransduction: photons activate rhodopsin → G-protein cascade → cGMP… Color Constancy & Chromatic AdaptationNewVon Kries chromatic adaptation: scale LMS cone signals by illuminant estimate. Retinex… Animation: Frame Rates & Persistence of VisionNewExplore why flipping still frames looks like motion: control a spinning spoked wheel's true… 3D Eye VisionNewThis simulation demonstrates how the human eye perceives depth and three-dimensional space.… 3D Eye Vision FocusingNewThis simulation demonstrates the mechanics of how the human eye focuses light onto the… 3D Optical Illusion RoomNewThis simulation creates a visually engaging environment featuring optical illusions that… 3D Qr Code ScanningNewThis simulation demonstrates the principles behind QR code scanning using a 3D camera… 3D Shadow Puppet TheaterNewThis simulation creates a dynamic shadow puppet theater experience, allowing you to…
Infinite Tunnel WarpNewThis simulation demonstrates a visually compelling effect of infinite tunnel warping,… Portal Vortex: Space DistortionNewPortal Vortex - this variant focuses on space distortion. Desert Oasis MirageNewThis simulation demonstrates the optical illusion known as a mirage. It illustrates how… Architectural Design & Structural AnalysisNewThis simulation explores how architectural design impacts structural stability and resource… Art Historical Context & Critical AnalysisNewThis simulation explores how historical events and societal shifts have shaped artistic… Advanced Computer Vision - Comprehensive GuideNewThis simulation introduces users to core concepts in computer vision, including image… Experimental Design in Psychological ResearchNewThis simulation allows you to explore the core concepts of experimental design by… Forensic Psychology: Criminal Profiling SimulationNewThis simulation explores the core principles of forensic psychology by allowing you to… Forensic Psychology: Criminal Profiling AnalysisNewExplore the intricate process of criminal profiling by analyzing crime scene data, assessing… Criminal Profiling in Forensic PsychologyNewThis simulation explores how forensic psychologists use behavioral analysis and… Gestalt Perception Dynamics: A Visual ExplorationNewThis simulation explores the dynamics of Gestalt perception by allowing you to manipulate… Literary SimulationNewThis simulation explores the principles of literary analysis and creative writing through an… Advanced Mechanical Engineering SimulationNewThis simulation allows you to explore the principles of mechanical engineering by… Organizational Leadership Dynamics SimulationNewThis simulation allows you to explore the complexities of organizational leadership dynamics… Advanced Conflict Resolution Psychology SimulatorNewThis simulation explores the complex psychological processes underlying conflict resolution,… Interactive Personality Assessment EngineNewThis interactive simulation allows you to explore complex personality assessment models by… Personality Trait Dynamics SimulationNewThis simulation explores how different personality traits – such as extroversion,… Fundamental Philosophical Inquiry SimulationNewThis simulation explores fundamental philosophical inquiry by allowing users to construct… Advanced Philosophical Exploration SimulationNewThis simulation allows you to delve into complex philosophical ideas, adjusting parameters… Advanced Psychology - Comprehensive GuideNewThis simulation demonstrates fundamental psychological concepts through interactive… Ancient Faiths in Dynamic SimulationNewThis simulation explores how different religious faiths have evolved over time, allowing you… Social Engineering Attack Defense SimulationNewThis simulation challenges you to understand the tactics used in social engineering attacks… Complex Social Interactions SimulationNewExplore the intricate dynamics of human behavior within groups by adjusting factors like… Spiritual Psychology SimulationNewThis simulation delves into the concepts of consciousness and transcendence within a… Interactive Stagecraft ExperimentationNewThis interactive simulation allows users to experiment with fundamental stagecraft… Theatrical Design in a Digital StageNewThis simulation explores how theatrical designers craft immersive stage environments using… Artificial Intelligence Computer Vision Advanced SimulationNewThis simulation delves into the advanced applications of computer vision using AI. It… Artificial Intelligence Computer Vision Simulation 2NewA second simulation focusing on computer vision principles. This version explores different… Artificial Intelligence Ethics - Comprehensive GuideNewThis simulation provides a foundational understanding of the ethical challenges and… Augmented Reality Ar Navigation SimulationNewThis simulation illustrates the use of augmented reality for navigation purposes. It… Augmented Reality - Comprehensive GuideNewThis simulation provides a detailed overview of augmented reality technology. It covers the… Augmented Reality Virtual Overlay SimulationNewThis simulation dives into the core mechanics of augmented reality, allowing you to… Bio-Ethics Dialogue Hub — Science PortalNewThis simulation presents a platform for exploring ethical considerations within scientific… Biotech-Advanced-Neurotech-Ethics-PortalNewThis simulation demonstrates the ethical considerations surrounding advanced… Breakroom ZeroNewThis simulation presents an unsettling interactive experience set in a desolate breakroom… Chameleon Camouflage LabNewThis simulation investigates the remarkable camouflage abilities of chameleons,… Chameleon Canopy Camouflage LabNewThis simulation focuses on the specific camouflage strategies employed by chameleons within… Civet Fruit Scent LabNewThis simulation investigates the olfactory capabilities of civets as they forage for fruit.… Civic Resilience Theatre — Science PortalNewThis simulation demonstrates the potential of using theatrical performance as a tool for… Science Portal — Climate Adaptation StudioNewThis simulation demonstrates a virtual studio environment for developing and testing climate… Science Portal — Resilience Investment HubNewThis simulation presents a strategic investment hub focused on building resilience against… Cognitive Learning SimulationNewThis simulation explores different learning methodologies and their impact on cognitive… Human Attention and Memory DynamicsNewThis simulation explores the complex interplay between human attention and memory,… Cognitive Wellness Workspace SimulationNewThis simulation examines the design elements that promote mental and emotional well-being in… Advanced Telepathy SimulationNewThis simulation explores the concept of telepathy (mind-to-mind communication) as a… Interpersonal Communication SimulationNewThis simulation focuses on the dynamics of interpersonal relationships and how individuals… Computational PhilosophyNewThis simulation demonstrates the use of computational techniques to explore philosophical… Computer Object RecognitionNewThis simulation demonstrates basic computer vision concepts, such as edge detection and… Computer Vision Simulation EnhancedNewThis simulation allows users to explore fundamental computer vision techniques like edge… Creative Evaluation SimulationNewThis simulation demonstrates the process of assessing creative work and ideas. It… Creative Inspiration SimulationNewThis simulation explores the sources and mechanisms behind creative inspiration. It… Creative Wellness SimulationNewThis simulation explores the connection between creativity and mental wellbeing. It… Creative Writing SimulationNewThis simulation provides a platform for users to experiment with creative writing. It offers… Cybernetic Ethics SimulationNewThis simulation presents users with ethical dilemmas related to the development and use of… Science Portal — Data Governance BlueprintNewThis simulation demonstrates the importance of data governance within a scientific research… Data-Science-Data-Literacy-PortalNewThis simulation focuses on developing data literacy skills through interactive challenges.… Deepfake Detection Laboratory SimulationNewThis simulation presents a virtual laboratory for researching and developing deepfake… UX Design SimulationNewThis simulation demonstrates the principles of user experience (UX) design by allowing users… Web Design SimulationNewThis simulation demonstrates the fundamentals of web design by allowing users to create and… Development User Experience Development SimulationNewThis simulation focuses on the creation of user-friendly interfaces and applications. Users… Entrepreneurship Pitch Presentation SimulationNewPlayers prepare and deliver a compelling pitch presentation to potential investors or… Face Detection & Recognition - Interactive Computer Vision DemoNewThis simulation demonstrates face detection and recognition techniques using interactive… Film Studies Fundamentals Interactive SimulationNewThis simulation provides a foundational understanding of cinematic techniques, exploring the… Gaming Game Psychology SimulationNewInvestigate the psychological factors that influence player behavior in video games. This… Guess the Neural NetworkNewThis interactive simulation challenges users to guess the architecture and parameters of a… Guess the Neural Network - Interactive ML Learning GameNewThis simulation presents an interactive game where users attempt to identify the parameters… Hologram InterfaceNewThis simulation demonstrates the visual aspects of a holographic user interface. It explores… Hyper Communication Consciousness Communication SimulationNewThis simulation explores the concept of hyper communication, focusing on conscious… Hyper Communication Reality Communication SimulationNewThis simulation delves into the concept of communicating with reality itself. Participants… Hyper Space Conscious Space SimulationNewThis simulation investigates the concept of hyper-space and its potential impact on… Image Classification Demo - TensorFlow.jsNewThis simulation showcases a basic image classification demo built using TensorFlow.js,… Image Segmentation Demo - Semantic & Instance SegmentationNewThis simulation demonstrates image segmentation techniques, specifically semantic and… Immersive Archival Museum SimulationNewThis simulation creates an interactive experience for exploring historical artifacts within… Criminal Behavior & Legal PsychologyNewThis simulation demonstrates an exploration of criminal behavior patterns and psychological… Social Dynamics SimulationNewObserve the complex interactions within a simulated social group, adjusting parameters like… Language SimulationNewThis interactive simulation explores the complexities of language, potentially focusing on… Linguistics Language Acquisition SimulationNewThis simulation explores the processes of language acquisition – how children learn to… Linguistics Pragmatics SimulationNewThis simulation explores pragmatics – the study of meaning in context. It demonstrates how… Linguistics Fundamentals: Interactive Syntax SimulationNewExplore the building blocks of language with our interactive syntax simulation. Manipulate… Literature SimulationNewThis simulation offers an interactive way to experience literature, perhaps through… Literary Analysis SimulationNewThis simulation explores the process of analyzing literary texts by examining elements like… Literature SimulatorNewThis simulation allows users to explore the intricate process of literary analysis by… Luna Moth Night Navigation LabNewThis simulation investigates the remarkable navigation abilities of luna moths. Users can… Mobile Usability Testing ReportNewThis simulation presents a report detailing the findings of usability testing conducted on a… Mobile UX TestingNewThis simulation focuses on the testing of a mobile application's user experience. It… Management Leadership SimulationNewThis simulation explores different leadership styles and their impact on team performance.… Overlapping Grid Moire Pattern SimulationNewThis simulation demonstrates the creation of a moiré pattern through the superposition of… N73 Desert Heat MirageNewThis simulation illustrates the optical phenomenon of a heat mirage. It shows how… Interactive 3D Engine - Neural InterfaceNewThis simulation explores how a 3D engine can be used to visualize complex neural data… Neural Interface DemoNewThis simulation provides a basic demonstration of neural interface concepts. Users can… Neuroergonomic Pilot Training SimulationNewThis simulation focuses on optimizing pilot performance by analyzing neurological responses… Object Detection PlaygroundNewThis simulation focuses on object detection, a core task in computer vision. Users can… Object Detection Playground - Interactive Computer Vision DemoNewThis simulation provides an interactive demonstration of object detection using computer… Optical Flow VisualizerNewThis simulation visualizes optical flow, revealing the motion patterns within a video. It… Optical Flow Visualizer - Motion Estimation DemoNewThis simulation demonstrates optical flow visualization, a technique for estimating the… Philosophy Philosophical Inquiry SimulationNewThis simulation offers a dynamic approach to understanding complex philosophical ideas by… Philosophy SimulationNewThis simulation presents users with philosophical dilemmas and thought experiments to… Philosophy SimulatorNewThis simulation allows users to explore core philosophical concepts through interactive… Philosophy Thinking SimulationNewThis simulation provides a dynamic environment for exploring complex philosophical concepts… Photography Portrait Photography SimulationNewThis simulation focuses on the techniques involved in portrait photography, including… Photography Street Photography SimulationNewThis simulation illustrates the challenges and opportunities of street photography,… Photography Wedding Photography SimulationNewThis simulation showcases the specific techniques required for wedding photography,… Psychology Simulator: Cognitive ProcessesNewThis simulation explores fundamental cognitive processes like attention and memory, allowing… Psychophysics Perception Simulator: Sensory ThresholdsNewThis simulation explores how our brains perceive the world through measuring the minimum… Global Workspace: A Consciousness Studies SimulatorNewSpecialized cognitive modules compete for a shared global workspace — when one wins enough… Psychology Advanced Emotion Regulation SimulationNewThis simulation demonstrates the principles of emotion regulation within psychology,… Psychology Advanced Memory Consolidation SimulationNewThis simulation illustrates the complex process of memory consolidation as studied in… Psychology Advanced Neuroplasticity SimulationNewThis simulation explores the concept of neuroplasticity – the brain’s ability to reorganize… Psychology Advanced Positive Psychology SimulationNewThis simulation delves into the principles of positive psychology, demonstrating techniques… Psychology Advanced Trauma Psychology SimulationNewThis simulation examines the psychological effects of trauma, exploring diagnostic criteria… Psychology Clinical Psychology SimulationsNewThis simulation provides an introduction to clinical psychology, allowing users to practice… Psychology Developmental Psychology SimulationsNewThis simulation explores the key concepts of developmental psychology, examining how… Psychology Neuropsychology SimulationsNewThis simulation introduces neuropsychological principles, demonstrating how brain damage… Psychology Neuroscience Brain Function SimulatorNewThis simulation explores the fundamental neuroscience behind brain function, illustrating… Sea Turtle Navigation LabNewThis simulation models the navigational abilities of sea turtles, focusing on their use of… Citizen Air Monitor — Science PortalNewThis simulation provides access to real-time air quality data collected by citizen… Civic Data Playground — Science PortalNewThis simulation allows users to interact with various civic datasets, enabling them to… Social Anthropology SimulationsNewThis simulation allows players to explore anthropological research methods. They conduct… Social Media Social Media Ethics SimulationNewThis simulation examines ethical dilemmas related to social media use, such as data privacy,… Temporal Temporal Communication SimulationNewThis simulation demonstrates the challenges of communication across time. Users can interact… Theater Acting SimulationNewThis simulation allows users to experiment with various acting techniques and behaviors on a… Theater Audience Engagement SimulationNewThis simulation focuses on modeling audience reactions and responses to a theatrical… Theater Stage Direction SimulationNewThis simulation allows users to experiment with directing actors on a virtual stage. It… Theater Theater Acting SimulationNewThis simulation provides a space to explore acting techniques within a theatrical… Theater Theater Criticism SimulationNewThis simulation models the process of theatrical criticism, allowing users to evaluate… Transcendent Reality Transcendence SimulationNewThe simulation delves into philosophical concepts surrounding reality and perception,… Transcendent Space Omniscient Space SimulationNewThe simulation investigates a space where all information is instantly accessible,… Tunnel IllusionNewThis interactive simulation recreates the classic optical illusion where a tunnel appears to… Ultimate Communication Transcendent Communication SimulationNewThis simulation explores the concept of communication beyond traditional methods. It likely… Ultimate Communication Universal Translator SimulationNewThis simulation investigates the theoretical possibility of a universal translator capable… Ultimate Technology Reality Manipulation SimulationNewThis simulation explores the theoretical possibility of manipulating reality through… Vidbyttia SvitlaNewThis simulation visualizes the concept of a 'new world' or altered perspective through… Virtual Reality Vr Social SimulationNewThis simulation demonstrates how virtual reality can be used for social interaction. Users… Vitrylna Rehata Poputnyi ViterNewThis simulation demonstrates the principles of optical illusions and perception. Players… Wellness Intellectual Wellness SimulationNewThis simulation demonstrates the importance of cognitive stimulation for maintaining… Human Computer Interaction SimulationNewThis simulation demonstrates the principles of user interface design and interaction. It… Desert Mirage OasisNewThis simulation illustrates the optical phenomenon of mirages in a desert environment,… Quality User Experience Quality SimulationNewThis simulation explores the impact of user experience (UX) design on a product's success.…
About the category

Perception & Optical Illusions

How the brain interprets light, colour, motion and depth. Interactive optical illusions and visual experiments.

Three.js · WebGL 60 FPS CC BY 4.0
Quick facts
150interactive simulations in this category
runs at 60 FPS in any modern browser
🌐English, Ukrainian, Polish, Spanish, German, Japanese, Italian, Portuguese (Brazil), French, Arabic, Dutch, Chinese, Korean, Hindi, Turkish, Vietnamese, Russian, Indonesian, Persian, Bengali, Thai, Filipino, Swahili, Urdu, Malay, Tamil, Hebrew, Greek, Punjabi, Amharic, Burmese, Khmer, Georgian, Nepali, Mongolian, Armenian, Sinhala, Lao, Czech, Romanian, Hungarian, Bulgarian, Swedish, Danish, Finnish, Norwegian, Slovak, Croatian, Serbian, Slovenian, Lithuanian, Latvian, Estonian, Icelandic, Albanian, Macedonian, Bosnian, and Maltese
🎓CC BY 4.0 — free for classrooms and LMS embeds

Frequently asked questions

Do I need to install anything to run Perception & Optical Illusions simulations?

No. Everything runs entirely in your browser — no downloads, plugins or accounts. Works in Chrome, Firefox, Edge and Safari; most simulations also work on mobile.

Can I use these simulations for teaching?

Yes — all content is free for educational use under CC BY 4.0. Link to any simulation directly or embed it in your LMS with an iframe; no API key required.

Are the models scientifically accurate?

They use the same mathematical formulations as professional software, integrated numerically in real time. Each simulation lists its algorithms, and many link to an article explaining the mathematics.

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