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Raysect Python Raytracing Package

A ray-tracing framework for optical/non-optical physics simulations.

The aims of the Raysect project are as follows:

  • develop a ray-tracer that is easy for scientists and engineers to use and extend

  • the raytracer must be robust and high precision

The general development philosophy is ease of use trumps performance, but performance is not to be ignored.

For more information, see the documentation pages.

Dispersion of light passing through a prism

Caption: a simulation of Newton's classic experiment, white light being dispersed by a glass prism.

Please note, this code is currently under heavy development and subject to change.

Raysect currently only supports Linux. Windows support will come at a later stage.

Please note, for legal reasons we require the copyright to any contributed code to be passed to the Raysect project. Please see CONTRIBUTING.txt in the repository.

Development Team

  • Dr Alex Meakins
  • Dr Matthew Carr

Citing the Code

About

The main source repository for the Raysect project.

www.raysect.org

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Readme
BSD-3-Clause license

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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DOIBuild Status
Raysect Logo
Raysect Python Raytracing Package
A ray-tracing framework for optical/non-optical physics simulations.
The aims of the Raysect project are as follows:
  • develop a ray-tracer that is easy for scientists and engineers to use and extend
  • the raytracer must be robust and high precision
The general development philosophy is ease of use trumps performance, but performance is not to be ignored.
For more information, see the documentation pages.
Dispersion of light passing through a prism
Caption: a simulation of Newton's classic experiment, white light being dispersed by a glass prism.
Please note, this code is currently under heavy development and subject to change.
Raysect currently only supports Linux. Windows support will come at a later stage.
Please note, for legal reasons we require the copyright to any contributed code to be passed to the Raysect project. Please see CONTRIBUTING.txt in the repository.
Development Team
  • Dr Alex Meakins
  • Dr Matthew Carr
Citing the Code
About
The main source repository for the Raysect project.
www.raysect.org
Resources
Readme
BSD-3-Clause license
Contributing
Contributing
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0 forks
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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BranchesTags
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DOIBuild Status
Raysect Logo
Raysect Python Raytracing Package
A ray-tracing framework for optical/non-optical physics simulations.
The aims of the Raysect project are as follows:
  • develop a ray-tracer that is easy for scientists and engineers to use and extend
  • the raytracer must be robust and high precision
The general development philosophy is ease of use trumps performance, but performance is not to be ignored.
For more information, see the documentation pages.
Dispersion of light passing through a prism
Caption: a simulation of Newton's classic experiment, white light being dispersed by a glass prism.
Please note, this code is currently under heavy development and subject to change.
Raysect currently only supports Linux. Windows support will come at a later stage.
Please note, for legal reasons we require the copyright to any contributed code to be passed to the Raysect project. Please see CONTRIBUTING.txt in the repository.
Development Team
  • Dr Alex Meakins
  • Dr Matthew Carr
Citing the Code
About
The main source repository for the Raysect project.
www.raysect.org
Resources
Readme
BSD-3-Clause license
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Contributing
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0 watching
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0 forks
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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DOIBuild Status
Raysect Logo
Raysect Python Raytracing Package
A ray-tracing framework for optical/non-optical physics simulations.
The aims of the Raysect project are as follows:
  • develop a ray-tracer that is easy for scientists and engineers to use and extend
  • the raytracer must be robust and high precision
The general development philosophy is ease of use trumps performance, but performance is not to be ignored.
For more information, see the documentation pages.
Dispersion of light passing through a prism
Caption: a simulation of Newton's classic experiment, white light being dispersed by a glass prism.
Please note, this code is currently under heavy development and subject to change.
Raysect currently only supports Linux. Windows support will come at a later stage.
Please note, for legal reasons we require the copyright to any contributed code to be passed to the Raysect project. Please see CONTRIBUTING.txt in the repository.
Development Team
  • Dr Alex Meakins
  • Dr Matthew Carr
Citing the Code
About
The main source repository for the Raysect project.
www.raysect.org
Resources
Readme
BSD-3-Clause license
Contributing
Contributing
Activity
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0 watching
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0 forks
Report repository
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
BranchesTags
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DOIBuild Status
Raysect Logo
Raysect Python Raytracing Package
A ray-tracing framework for optical/non-optical physics simulations.
The aims of the Raysect project are as follows:
  • develop a ray-tracer that is easy for scientists and engineers to use and extend
  • the raytracer must be robust and high precision
The general development philosophy is ease of use trumps performance, but performance is not to be ignored.
For more information, see the documentation pages.
Dispersion of light passing through a prism
Caption: a simulation of Newton's classic experiment, white light being dispersed by a glass prism.
Please note, this code is currently under heavy development and subject to change.
Raysect currently only supports Linux. Windows support will come at a later stage.
Please note, for legal reasons we require the copyright to any contributed code to be passed to the Raysect project. Please see CONTRIBUTING.txt in the repository.
Development Team
  • Dr Alex Meakins
  • Dr Matthew Carr
Citing the Code
About
The main source repository for the Raysect project.
www.raysect.org
Resources
Readme
BSD-3-Clause license
Contributing
Contributing
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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BranchesTags
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DOIBuild Status
Raysect Logo
Raysect Python Raytracing Package
A ray-tracing framework for optical/non-optical physics simulations.
The aims of the Raysect project are as follows:
  • develop a ray-tracer that is easy for scientists and engineers to use and extend
  • the raytracer must be robust and high precision
The general development philosophy is ease of use trumps performance, but performance is not to be ignored.
For more information, see the documentation pages.
Dispersion of light passing through a prism
Caption: a simulation of Newton's classic experiment, white light being dispersed by a glass prism.
Please note, this code is currently under heavy development and subject to change.
Raysect currently only supports Linux. Windows support will come at a later stage.
Please note, for legal reasons we require the copyright to any contributed code to be passed to the Raysect project. Please see CONTRIBUTING.txt in the repository.
Development Team
  • Dr Alex Meakins
  • Dr Matthew Carr
Citing the Code
About
The main source repository for the Raysect project.
www.raysect.org
Resources
Readme
BSD-3-Clause license
Contributing
Contributing
Activity
Stars
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Watchers
0 watching
Forks
0 forks
Report repository
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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DOIBuild Status
Raysect Logo
Raysect Python Raytracing Package
A ray-tracing framework for optical/non-optical physics simulations.
The aims of the Raysect project are as follows:
  • develop a ray-tracer that is easy for scientists and engineers to use and extend
  • the raytracer must be robust and high precision
The general development philosophy is ease of use trumps performance, but performance is not to be ignored.
For more information, see the documentation pages.
Dispersion of light passing through a prism
Caption: a simulation of Newton's classic experiment, white light being dispersed by a glass prism.
Please note, this code is currently under heavy development and subject to change.
Raysect currently only supports Linux. Windows support will come at a later stage.
Please note, for legal reasons we require the copyright to any contributed code to be passed to the Raysect project. Please see CONTRIBUTING.txt in the repository.
Development Team
  • Dr Alex Meakins
  • Dr Matthew Carr
Citing the Code
About
The main source repository for the Raysect project.
www.raysect.org
Resources
Readme
BSD-3-Clause license
Contributing
Contributing
Activity
Stars
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0 watching
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0 forks
Report repository
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content
BranchesTags
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DOIBuild Status
Raysect Logo
Raysect Python Raytracing Package
A ray-tracing framework for optical/non-optical physics simulations.
The aims of the Raysect project are as follows:
  • develop a ray-tracer that is easy for scientists and engineers to use and extend
  • the raytracer must be robust and high precision
The general development philosophy is ease of use trumps performance, but performance is not to be ignored.
For more information, see the documentation pages.
Dispersion of light passing through a prism
Caption: a simulation of Newton's classic experiment, white light being dispersed by a glass prism.
Please note, this code is currently under heavy development and subject to change.
Raysect currently only supports Linux. Windows support will come at a later stage.
Please note, for legal reasons we require the copyright to any contributed code to be passed to the Raysect project. Please see CONTRIBUTING.txt in the repository.
Development Team
  • Dr Alex Meakins
  • Dr Matthew Carr
Citing the Code
About
The main source repository for the Raysect project.
www.raysect.org
Resources
Readme
BSD-3-Clause license
Contributing
Contributing
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
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