Reshade Ray Tracing Shader Rtgi 033 Exclusive [portable] -
// ReShade Ray Tracing Shader with RTGI 0.3.3 (Exclusive)
// =================================================================================================
#define RESHADE_MAX_LIGHTS 16
#define RESHADE_RTGI_MAX_BOUNCES 4
#define RESHADE_RTGI_MAX_SAMPLES 16
// Input textures
Texture2D g_texDepth : register(t0);
Texture2D g_texNormal : register(t1);
Texture2D g_texAlbedo : register(t2);
// Ray tracing output texture
RWTexture2D<float4> g_rwOutput : register(u0);
// RTGI parameters
cbuffer RTGIParams : register(b0)
float g_fRayLength;
float g_fMinRayLength;
float g_fIntensity;
float g_fSamples;
uint g_iMaxBounces;
uint g_iSamples;
;
// Shader
[numthreads(16, 16, 1)]
void CSMain(uint3 dt : SV_DispatchThreadID)
// Get pixel coordinates
uint2 pixelCoord = dt.xy;
// Load depth, normal and albedo
float depth = g_texDepth.SampleLevel(float4(0, 0, 0, 0), pixelCoord, 0).r;
float3 normal = g_texNormal.SampleLevel(float4(0, 0, 0, 0), pixelCoord, 0).rgb;
float3 albedo = g_texAlbedo.SampleLevel(float4(0, 0, 0, 0), pixelCoord, 0).rgb;
// Initialize ray origin and direction
float3 rayOrigin = float3(pixelCoord, depth);
float3 rayDirection = normalize(float3(pixelCoord - g_fRayLength, depth));
// Initialize accumulated color
float3 accumulatedColor = float3(0, 0, 0);
// Perform ray tracing
for (uint i = 0; i < g_iSamples; i++)
// Trace ray
float4 rayResult = float4(0, 0, 0, 0);
uint bounces = 0;
while (bounces < g_iMaxBounces)
// Raymarch
float t = g_fMinRayLength;
float3 rayEnd = rayOrigin + rayDirection * t;
float4 hit = float4(0, 0, 0, 0);
[loop]
for (uint j = 0; j < RESHADE_RTGI_MAX_BOUNCES; j++)
hit = g_texDepth.SampleLevel(float4(0, 0, 0, 0), rayEnd.xy, 0);
if (hit.r < rayEnd.z) break;
t += g_fRayLength;
rayEnd = rayOrigin + rayDirection * t;
// Handle hit
if (hit.r < rayEnd.z)
// Get hit normal and albedo
float3 hitNormal = g_texNormal.SampleLevel(float4(0, 0, 0, 0), rayEnd.xy, 0).rgb;
float3 hitAlbedo = g_texAlbedo.SampleLevel(float4(0, 0, 0, 0), rayEnd.xy, 0).rgb;
// Add to accumulated color
accumulatedColor += hitAlbedo * g_fIntensity;
// Update ray origin and direction
rayOrigin = rayEnd;
rayDirection = reflect(rayDirection, hitNormal);
// Increase bounces
bounces++;
else
break;
// Add to output
g_rwOutput[pixelCoord] += float4(accumulatedColor, 1);
// Finalize output
g_rwOutput[pixelCoord] /= g_iSamples;
Notes:
- This code uses HLSL (High-Level Shading Language) for DirectX.
- It assumes that the input textures (
g_texDepth,g_texNormal, andg_texAlbedo) are bound to the correct texture slots and are in the same space as the compute shader. - The
g_rwOutputtexture is used to store the ray tracing output. - The
RTGIParamsbuffer stores the parameters for the RTGI algorithm, such as ray length, minimum ray length, intensity, and number of samples.
Build and Usage:
- Compile the shader using a DirectX-compatible compiler (e.g.,
fxc). - Create a ReShade preset that loads the compiled shader.
- Configure the preset to use the correct input textures and parameters.
Title: The Democratization of Global Illumination: An Analysis of ReShade Ray Tracing Shader RTGI v0.33
Introduction
For decades, the "Holy Grail" of real-time computer graphics has been Global Illumination (GI). While standard rendering techniques handle direct lighting—light bouncing directly from a source to an object—they often fail to accurately simulate indirect lighting, or how light bounces from object to object, coloring the environment with reflected hues. Traditionally, this level of visual fidelity was reserved for pre-rendered cinematics or proprietary game engines utilizing hardware-accelerated ray tracing (DXR). However, the modding community has bridged this gap through post-processing injectors. At the forefront of this movement is Pascal Gilcher’s "ReShade Ray Tracing Shader RTGI," specifically the v0.33 exclusive release. This essay examines the technical innovation, visual impact, and significance of RTGI v0.33 as a tool that democratizes high-end lighting for the average consumer.
Technical Architecture: Screen Space Ray Tracing
To understand the significance of RTGI v0.33, one must understand how it differs from native ray tracing. Modern games that support ray tracing (like Cyberpunk 2077 or Control) utilize hardware-accelerated rays cast from the GPU's RT cores, calculating physics-accurate light paths in a 3D world space. In contrast, ReShade operates in "screen space." It does not have access to the game's full 3D geometry; it only sees what the player sees on the screen (the depth buffer and color texture).
RTGI v0.33 utilizes a sophisticated Screen Space Global Illumination (SSGI) algorithm. It casts rays from every visible pixel into the depth buffer to detect geometry. When a ray hits a surface, the shader samples the color of that surface and lights the originating pixel accordingly. Version 0.33 specifically refined the noise reduction algorithms and temporal stability of these rays. By improving how the shader handles temporal accumulation—blending current frames with previous ones to reduce flickering—v0.33 mitigates the "shimmering" artifacts common in lower-quality screen-space effects. It is a brute-force simulation of light behavior, running entirely on compute shaders, making it compatible with almost any GPU that supports DirectX 9, 10, or 11.
Visual Fidelity: Painting with Light
The primary appeal of RTGI v0.33 lies in its ability to fundamentally alter the atmosphere of a scene. In standard rendering, shadows are often stark and black, lacking nuance. This is known as the "void" effect, where unlit areas feel artificially dark. RTGI addresses this by simulating light bounce.
For example, in a scene featuring a red carpet illuminated by sunlight, standard rendering will show the carpet as red and the shadow as grey or black. With RTGI v0.33 enabled, the shader calculates the red light reflecting off the carpet and bleeding onto the surrounding white walls. This phenomenon, known as "color bleeding," adds an organic warmth to the image. Furthermore, v0.33’s refined ambient occlusion ensures that corners and crevices retain a soft, realistic darkness that grounds objects in the world, preventing the floating effect often seen in older games. The result is an image that feels less like a computer rendering and more like a photograph, imbuing static assets with a sense of physicality.
The "Exclusive" Nature and Community Impact
The term "exclusive" in the context of RTGI v0.33 is pivotal to its history. Unlike the standard "qUINT_SSR" or "RTGI" files publicly available on GitHub repositories, the v0.33 build was part of Pascal Gilcher’s Patreon support tier. This exclusivity highlights a shifting dynamic in the software industry: the viability of the "indie developer" model for graphics engineering.
By gating the most stable, feature-rich version behind a paywall, Gilcher was able to fund the extensive development time required to optimize these complex algorithms without corporate backing. While this sparked debate within the modding community regarding the ethics of paid software for free games, it undeniably proved that there is a massive consumer demand for retrofitting older titles with modern lighting. The exclusivity of v0.33 served as a proof-of-concept that high-end graphical features need not be locked behind the newest, most expensive graphics cards (NVIDIA’s RTX series) but could be approximated via software ingenuity.
Performance and Limitations
Despite its achievements, RTGI v0.33 is not without limitations. Because it relies on screen-space data, it suffers from information loss. If a light source or a reflective object is off-screen (not visible to the camera), the shader cannot calculate light bounces from it. This results in lighting that can pop in and out of existence as the camera moves, a phenomenon known as "disocclusion artifacts."
Furthermore, the computational cost is significant. While v0.33 introduced optimizations over previous iterations, running a path-tracing algorithm on top of a game that was never designed for it can halve frame rates. It forces the GPU to render the game twice: once for the game engine and once for the post-processing lighting pass. Consequently, RTGI v0.33 remains a tool primarily for enthusiasts with powerful hardware who are willing to trade performance for visual fidelity, particularly in screenshot artistry or cinematic gameplay.
Conclusion
ReShade Ray Tracing Shader RTGI v0.33 represents a fascinating intersection of technical wizardry and consumer demand. By leveraging screen-space data to simulate complex light transport, Pascal Gilcher effectively bypassed the hardware requirements of native ray tracing, bringing next-generation visuals to decade-old games. While it carries the inherent limitations of screen-space algorithms and demands significant computing power, its existence challenges the industry status quo. It demonstrates that lighting is the most critical component of visual realism and that, through the innovation of modders and independent developers, the boundaries of graphical fidelity can be pushed forward without the need for proprietary corporate engines. In the landscape of PC gaming, RTGI v0.33 stands as a testament to the power of software to revitalize and transform virtual worlds.
The ReShade Ray Traced Global Illumination (RTGI) shader version 0.33 represents a landmark update in post-processing technology, primarily known for introducing motion vectors to improve temporal stability and lighting accuracy. Developed by Pascal Gilcher (widely known as Marty McFly), this "exclusive" shader allows gamers to experience ray-traced effects in virtually any game—regardless of whether the title natively supports ray tracing or if the user has an NVIDIA RTX-capable graphics card. What is RTGI 0.33?
RTGI is a state-of-the-art post-processing effect that simulates how light physically interacts with objects in a 3D environment. Unlike native ray tracing, which utilizes triangle-based geometry data, RTGI operates as a screen-space effect using the game’s depth buffer. Version 0.33 was a significant milestone because:
Motion Vector Integration: This update introduced motion vectors, which help the shader track pixels as they move across frames, drastically reducing "shimmering" and flickering. reshade ray tracing shader rtgi 033 exclusive
Hardware Independence: It remains fully compatible with older GPUs, utilizing raw processing power rather than dedicated RT cores.
Improved Global Illumination: It models both diffuse and specular light bounces, bridging the gap between standard game lighting and photorealistic real-time solutions. Exclusive Features & Technical Innovations
The "exclusive" nature of the RTGI shader often refers to its availability as a "Pro" tier effect through Marty's Mods Patreon.
Custom Sampling Algorithms: Rather than relying on standard ReSTIR GI algorithms which can suffer from chroma noise, version 0.33 and subsequent updates use proprietary sampling designed to outperform standard solutions in quality.
HiZ Min-Max Tracing: Recent iterations have improved reflections by using pixel-perfect path tracing via HiZ technology.
Temporal Stability: By focusing on stability, it minimizes the lag and "ghosting" effects often seen in earlier screen-space ray tracing versions. How to Install and Configure RTGI 0.33
Because this shader is a third-party modification, it requires a specific installation process through the ReShade setup tool. ReShade 5.3 and RTGI 0.33 Update | August 2022
The search for "reshade ray tracing shader rtgi 033 exclusive" refers to a specific version (0.33) of the Ray Traced Global Illumination (RTGI) shader developed by Pascal Gilcher (also known as Marty McFly Key Details of RTGI 0.33 Shader Purpose : RTGI is a post-processing shader for
that adds path-traced global illumination and ambient occlusion to games that do not natively support it. It uses the game's depth buffer to simulate how light bounces off surfaces. Version Context
: Version 0.33 is an older release from around 2021-2022, primarily discussed in enthusiast communities like Reddit (r/CemuPiracy) and specialized modding forums. "Exclusive" Status
: The RTGI shader is historically "exclusive" in that it is primarily available through Pascal Gilcher's Patreon
. While early beta versions were sometimes shared, the most stable and advanced versions (now under the iMMERSE Pro branding) are distributed to supporters. Current Availability
The shader has evolved significantly since version 0.33. Newer iterations are now part of the iMMERSE Pro
suite, which includes advanced features like HiZ Min-Max Tracing and better denoisers. Official Downloads : You can find current versions and documentation on the Marty's Mods website or via his for free variants like Compatibility
: RTGI works on any GPU (AMD or NVIDIA) as it is a screen-space effect, but it is highly demanding and requires access to a game's depth buffer to function correctly. installation steps for the current version of ReShade or specific settings for RTGI Pascal Gilcher - Patreon
"reshade ray tracing shader rtgi 033 exclusive"
This string refers to a specific version of a popular graphics modification used in PC gaming.
🔗 Where to Get / Verify
- Official: Pascal Gilcher on Patreon
- Discord: Marty McFly's ReShade server (for release announcements)
- Changelog: Included in the downloaded
.fxhfile or Patreon post
If you meant a different version (e.g., 0.33 is actually a typo for 0.32 or 0.34), or you want me to write a YouTube video script, Reddit post, review, or tutorial about it, just let me know!
The RTGI 0.33 update for Pascal Gilcher’s (Marty McFly) ReShade ray tracing shader, released around August 2022, significantly improved performance and visual stability by introducing motion vectors. This version allows for more accurate light bouncing and reduced ghosting in motion compared to older builds. Key Features of RTGI 0.33
Motion Vector Support: The addition of motion vectors allows the shader to track object movement, resulting in much smoother temporal stability and less flickering.
Realistic Global Illumination: Physically simulates how light interacts with the environment, providing realistic indirect lighting and ambient occlusion. // ReShade Ray Tracing Shader with RTGI 0
Hardware Independency: Unlike native RTX, this shader operates on depth data, meaning it can run on non-RTX graphics cards (though it remains hardware-demanding).
Diffuse and Specular GI: Accurately models both soft, scattered light and sharper reflections.
Integration with Launchpad: For 0.33 and later, the iMMERSE Launchpad is required to be at the top of the load order to provide the necessary data for the shader to function.
The glow from the neon signs didn’t just sit on the screen anymore; it bled.
Leo had spent hours scouring obscure forums for it: RTGI 0.33. This wasn’t just another post-processing filter; it was the "holy grail" of the Reshade community, a Ray-Traced Global Illumination shader that promised to turn his aging RPG into a photorealistic masterpiece.
He injected the code and hit Home. The menu slid out. He toggled the shader on.
Suddenly, the flat, baked lighting of the dungeon vanished. His character’s torch didn’t just brighten the room; the orange light bounced off the damp stone walls, catching the edge of a rusted shield and casting a soft, diffuse glow onto the ceiling. Shadows weren’t just black blobs; they were deep, gradient pools that shifted realistically as he moved.
"Exclusive," the readme file had said. He understood why. The depth-buffer was working overtime, calculating light paths that the game’s original engine never dreamed of. For a second, his GPU fans screamed, a mechanical plea for mercy, but Leo didn't care. He was seeing the world through a new lens—where every puddle held a reflection and every flicker of light felt alive.
He took a screenshot, the frame frozen in a perfect harmony of math and art, and realized he couldn't go back. To Leo, the "vanilla" world was now just a shadow of the real thing.
ReShade RTGI 0.33 (Ray Traced Global Illumination) shader, developed by Marty McFly (Pascal Gilcher)
, is a major milestone in post-processing technology. It bridges the gap between classic lighting and modern hardware-accelerated ray tracing, allowing older or non-RTX cards to simulate complex light bounces. Core New Features in 0.33 The 0.33 update is specifically notable for introducing Motion Vectors Temporal Stability
: By using motion data from the game engine, the shader can track pixel movement between frames. This significantly reduces the "shimmering" or "noise" often seen in earlier versions of screen-space ray tracing. Smoother Visuals
: Objects in motion maintain their lighting and shadows more accurately, preventing the ghostly "trails" or laggy lighting that plagued previous iterations. Performance and Quality screen-space effect
, meaning it only calculates light based on what is currently visible on your monitor and the game's depth buffer.
: It adds depth to scenes by creating realistic ambient occlusion and color bleeding. For instance, a bright red wall will naturally reflect a red hue onto the floor next to it—a feature typically missing in standard game lighting. Hardware Independence
need an RTX-capable card to run this. It uses the raw compute power of any modern GPU. Performance Cost
: It is highly demanding. Users should expect a significant frame rate drop depending on the "Amount of Rays" and "Steps per Ray" settings. It is mostly
, so a stronger card remains the primary factor for a smooth experience. Accessibility and Setup Portal Reshade RTGI - The Working Class' RTX Portal
ReShade RTGI 0.33, part of the iMMERSE suite by Pascal Gilcher (Marty McFly), is a significant update to the widely used screen-space ray tracing shader. It is primarily available through Marty McFly's Patreon, often referred to as an "exclusive" due to its paywalled early-access nature. Key Features & Improvements
Motion Vector Support: The standout addition in version 0.33 is the integration of motion vectors. This allows the shader to better track pixels as they move across the screen, significantly reducing "ghosting" and flickering during fast movement compared to previous versions.
Enhanced Stability: The update improved temporal stability, making the lighting and shadows feel more "locked" to the game world rather than floating on top. Notes :
Refined Lighting: It accurately models both diffuse and specular global illumination, allowing light to realistically bounce off surfaces and bleed colors into the environment. Performance Impact
Hardware Demands: While it works on non-RTX cards by using depth buffer data, it is highly demanding.
Frame Rate Cost: Users typically report a performance hit ranging from 15% to 25% depending on whether diffuse and specular effects are both enabled.
Optimization: Version 0.33 is noted for better quality-to-performance ratios than legacy versions, though some users find it can still consume significant VRAM (up to 5GB in high-texture scenarios).
The ReShade RTGI 0.33 update, released in August 2022 by Pascal Gilcher (also known as Marty McFly), introduced significant technical advancements to the Ray Traced Global Illumination shader, most notably the integration of motion vectors. Key Features of RTGI 0.33
Motion Vector Support: A major addition that allows the shader to track object movement, significantly improving temporal stability and reducing "ghosting" artifacts.
Ray Traced Global Illumination: Simulates realistic light "bounces," allowing light to naturally illuminate surfaces like ceilings and walls that aren't directly hit by a light source.
Hardware Independence: Unlike native RTX ray tracing, RTGI operates based on depth data and screen space, making it compatible with non-RTX cards, including older NVIDIA and AMD hardware.
Improved Performance: Despite its visual complexity, the shader is designed to be scalable with various quality presets to balance performance on different systems. Installation & Availability
RTGI is a premium shader often distributed as an "exclusive" beta through Pascal Gilcher’s Patreon.
Obtain the Shader: Access the latest RTGI files via the Marty McFly Patreon.
Setup ReShade: Download the latest version of ReShade (version 5.3 or higher was recommended at the time of 0.33's release).
Deploy Files: Place the RTGI .fx and header files into the reshade-shaders/Shaders folder of your game's installation directory.
Configure Depth Buffer: Ensure "Copy before clearing" is checked in ReShade's settings to provide the shader with necessary depth data. Comparison with Native Ray Tracing
While RTGI provides a striking "next-gen" look to older games, it is a Screen Space effect. This means it only calculates light for objects currently visible on your screen, unlike engine-level ray tracing which considers the entire game world.
Important Note: This guide is for educational and archival purposes. Version 0.33 is obsolete (replaced by newer RTGI and then by Marty’s Screen Space Ray Tracing). It is also closed-source/Patreon-era software.
Conclusion: Download Responsibly
The search for "ReShade ray tracing shader RTGI 033 exclusive" ends here. You now know that version 0.33 is the last great free-ish ray tracer that runs on a potato. You know it needs ReShade 5.9.2. You know to set "Half Resolution" and "Bounce Intensity" to 0.45.
Go forth and bounce light. Resurrect your older PC. Turn Mirror’s Edge Catalyst into a path-traced dream. And remember: While it is not true hardware ray tracing, when you see the sunset bounce off a rusty car in GTA V and illuminate a puddle ten feet away... you won't care about the difference.
Enjoy your exclusive RTGI 0.33 experience.
Disclaimer: This article is for educational purposes. Always support developers like Pascal Gilcher by joining their Patreon for the latest versions if you have the hardware. RTGI 0.33 is provided as-is for archival compatibility.
However, note: As of my current knowledge cutoff in October 2023, the latest public version of RTGI was around 0.32 or earlier 0.33 beta. If "0.33 exclusive" refers to a newer Patreon-exclusive or beta release after that date, I recommend checking Pascal Gilcher's Patreon or GitHub for the most up-to-date changelog.
Below is a feature overview / highlight sheet based on what a typical "exclusive 0.33" update would likely include, following the pattern of previous RTGI updates (0.30 → 0.31 → 0.32):
Issue: FPS drop of 50%
Cause: You are running at "Full Resolution" . Fix: Change quality from "Full" to "Half." The human eye cannot tell the difference in motion, but your GPU will drop from 85% usage to 45%.