Debug

Debug allows you to access a large variety of debug views in order to troubleshoot compatibility, content or rendering issues in a game or mod. Please refer to this document for an in depth guide to the Debug Display modes.

Debug Search Menu

You can use the Debug Search Menu to type in the Debug setting that you would like to test.

Ref	Option	RTX Option	Default Value	Description
1	Cache Current Image Button
2	Show Cached Image Checkbox		Unchecked
3	Enable Debug View Checkbox		Unchecked
4	Debug View		Primitive Index	(See Debug View Chart Below)
5	Debug Knob		0.000 (for each value)
6	Display Type Dropdown	rtx.debugView.displayType	Standard	Choices: Standard, BGR Exclusive Color, Exposure Value (EV100), & HDR Waveform
8	Sampler Type	rtx.debugView.samplerType	Normalized Linear	Sampler type for debug views that sample from a texture (applies only to a subset of debug views). Choices: Nearest, Normalized Nearest, & Normalized Linear
8	Display Settings
	Common:
9	Color NaN/Inf Red Checkbox		Checked
10	Color Code Pixel Radius		4
	Standard:
11	Alpha Channel Checkbox		Unchecked
12	Pseudo Color Mode Checkbox	rtx.debugView.enablePseudoColor	Unchecked	Enables RGB color coding of a scalar debug view value.
13	Scale		1.000
14	Min Value	rtx.debugView.evMinValue	-4
15	Max Value	rtx.debugView.evMaxValue	4

Debug View Chart

Debug View	Description
Primitive Index	Refers to a unique identifier or index associated with a primitive in a rendering or graphics pipeline. Primitives are fundamental geometric shapes or elements used in computer graphics to construct more complex scenes and objects. These primitives can include points, lines, triangles, and more. Each primitive is assigned a unique index that allows the GPU to process them individually or in specific groups as required by the rendering algorithm.
Geometry Hash
Custom Index
Barycentric Coordinates	A set of coordinates used to describe the position of a point within a triangle or other convex polygon. These coordinates are defined relative to the vertices of the polygon and are useful for various operations in graphics rendering, including interpolation and texture mapping. Barycentric coordinates are represented as a set of weights for each vertex of the polygon.
Is Front Hit
Is Static
Is Opaque
Is Direction Altered
Is Emissive Blend
View Direction
Cone Radius	The path of a ray of light as it extends from the camera into the scene and helps determine which objects or surfaces in the 3D environment the ray intersects with.
Position
Texture Coordinates	Texture coordinates specify which part of a 2D texture map should be applied to each point on the 3D model’s surface. This mapping allows for realistic and detailed texturing of 3D objects, enabling the application of textures like color, bump maps, normal maps, and more. By specifying texture coordinates for each vertex, the graphics hardware can interpolate and apply the corresponding texture data smoothly across the entire surface, creating the illusion of complex surface properties and details on the 3D object when rendered.
Virtual Motion Vector	The motion of objects between frames. These motion vectors help reduce data redundancy and improve compression efficiency by describing how objects move from one frame to another.
Screen-Space Motion Vector	(SSMV) is a data representation that captures the motion of objects or pixels between consecutive frames within the screen space. SSMVs are used in various rendering techniques, such as motion blur and temporal anti-aliasing, to simulate realistic motion effects.
Triangle Normal	These normals help determine how light rays are reflected or refracted off the triangle’s surface, affecting the appearance of the triangle in the rendered image.
Interpolated Normal	A normal vector calculated for a specific point on a 3D surface by interpolating or blending the normals of nearby vertices. These interpolated normals are used to determine how light interacts with the surface and are crucial for achieving smooth shading and realistic lighting effects.
Tangent	Refers to a vector that lies in the plane of a 3D surface and is perpendicular to the surface’s normal vector. Tangent vectors are used in techniques like normal mapping and bump mapping to simulate fine surface details and enhance the realism….
Bitangent	A vector that is perpendicular to both the surface normal and the tangent vector of a 3D surface at a particular point. The bitangent vector is typically used in advanced shading techniques, such as normal mapping and bump mapping, to complete a local coordinate system known as the tangent space.
Shading Normal	Often referred to as a “Geometric Normal,” is a vector that represents the orientation or facing direction of a surface at a particular point on a 3D object. This vector is used in shading calculations to determine how light interacts with the surface and how the surface should be illuminated or shaded.
Virtual Shading Normal
Vertex Color	Refers to color information associated with individual vertices (corner points) of a 3D model or object. Each vertex can have a specific color value assigned to it, which is typically represented as a combination of red, green, and blue (RGB) values.
Portal Space
Material Type	Refers to a classification or categorization of the physical properties and visual characteristics of surfaces or materials used in 3D scenes. Material types are used to describe how light interacts with a particular surface and how it should be shaded and rendered. Common material types might include: Diffuse Materials, Specular Materials, Translucent Materials, and Emissive Materials.
Diffuse Albedo	Refers to the inherent color or reflectance of a surface when it interacts with and scatters incoming light uniformly in all directions. It represents the base color or the color of a surface under diffuse lighting conditions, meaning when there are no specular highlights or reflections.
Base Reflectivity
Isotropic Roughness	Refers to a property that describes the degree of micro-surface irregularities or roughness on a 3D object’s surface in a uniform and non-directional manner. This roughness affects how light scatters and interacts with the surface, leading to diffuse reflections.
Perceptual Roughness
Anisotropy	Refers to a property of materials or surfaces that causes them to exhibit different reflective or shading characteristics in different directions. Anisotropic materials have a direction-dependent behavior, meaning they can appear shinier or more reflective in one direction while exhibiting different properties in other directions.
Anisotropic Roughness	Refers to a property that describes surface roughness in a way that varies based on the direction of measurement. Unlike isotropic roughness, which is uniform in all directions, anisotropic roughness implies that the micro-surface irregularities on an object’s surface have a directional preference.
Opacity	Refers to the degree to which an object or part of an object is transparent or allows light to pass through. It is a fundamental property used to control the visibility and transparency of 3D objects and their components within a rendered scene.
Emissive Radiance	Refers to the radiant energy emitted or radiated from a surface or object in a 3D scene. It represents the light or color that a surface emits as opposed to reflecting or scattering light like most materials.
Thin Film Thickness	Refers to the measurement of the thickness of a thin film or layer of material that is applied to a surface. This concept is often used in computer graphics and rendering to simulate the interaction of light with thin layers of materials, such as oil films on water or soap bubbles.
Virtual Hit Distance
Primary Depth	Refers to the depth information associated with the primary rays in a ray tracing pipeline.
Blue Noise	Refers to a type of noise pattern that has unique properties, making it particularly useful for various applications, including texture mapping, sampling, and anti-aliasing. Blue noise is characterized by a distribution of points or values in such a way that they are more evenly spaced and have a more perceptually uniform distribution of energy in the high-frequency spectrum, especially in the blue part of the spectrum.
Pixel Checkerboard	A technique used to analyze and visualize the distribution of pixel shading workloads across the screen or image. It involves rendering a checkerboard pattern over a scene, where each square of the checkerboard represents a pixel. The color of each square can indicate the complexity or computational workload of the corresponding pixel.
Volume Radiance Depth Layers
Surface Volume Radiance
Composite Output	Refers to the final image that is generated by combining and blending various graphical elements or layers together. This process typically involves taking multiple rendered images, often with transparency information, and compositing them into a single cohesive image that represents the final scene as it will be displayed to the viewer.
Local Tonemapper Luminance Output	Refers to the output of a local tonemapping process that adjusts the brightness and contrast of an image on a pixel-by-pixel basis. This adjustment is based on the luminance or brightness values of the pixels in the image.
Local Tonemapper Blend Weight
Local Tonemapper Assembled Exposure
Local Tonemapper Final Multiplier
Final Output
Final Output (pre-tonemap)
Exposure Histogram	A graphical representation that provides a visual summary of the distribution of pixel brightness or luminance values in an image. It shows how many pixels fall into different brightness or exposure levels, typically displayed as a histogram chart.
View Model: Final Output
ReSTIR GI Initial Sample
ReSTIR GI Temporal Reprojection
ReSTIR GI Spatial Reuse
ReSTIR GI Final Shading MIS Weight
ReSTIR GI Virtual Hit Distance
ReSTIR GI Gradients
ReSTIR GI Confidence
Stochastic Alpha Blend Color
Stochastic Alpha Blend Normal
Stochastic Alpha Blend Geometry Hash
Stochastic Alpha Blend Background Transparency
Geometry Flags: First Sampled Lobe is Specular
Indirect First Ray Throughput
Indirect First Sampled Lobe PDF
Indirect First Sampled Solid Angle PDF
Primary Ray Interactions (RTS TR Only)
Secondary Ray Interactions (RGX TR Only)
Primary Ray Bounces	Refers to the first set of rays cast from the camera or viewer into a 3D scene during the ray tracing process. These primary rays are used to determine which objects or surfaces in the scene are visible from the camera’s perspective.
Secondary Ray Bounces	Refers to the rays that are cast after the primary rays during the ray tracing process. Primary rays are initially shot from the camera or viewer into the 3D scene to determine which objects or surfaces are visible. When these primary rays hit a reflective or refractive surface, secondary rays are generated to simulate additional lighting effects, such as reflections and refractions.
Primary Unordered Ray Interactions
Secondary Unordered Ray Interactions
Primary Ray Interactions (+Unordered) (RGS TR Only)
Secondary Ray Interactions (+Unordered) (RGS TR Only)
PSR Primary Secondary Surface Mask
PSR Selected Integration Surface PDF
Primary Use Alternative Disocclusion Threshold
Primary Specular Albedo	Refers to the albedo or reflectance value that represents the color and intensity of the specular reflections on a surface when using ray tracing or other rendering techniques. It specifically relates to how a surface reflects light from direct light sources, such as point lights or directional lights.
Secondary Specular Albedo	Refers to the albedo or reflectance value that represents the color and intensity of the secondary, or indirect, specular reflections on a surface when using ray tracing or other advanced rendering techniques.
Primary Direct Diffuse: Noisy Color
Primary Direct Diffuse: Noisy HitT
Primary Direct Diffuse: Demodulated Noisy Color
Primary Direct Diffuse: Denoised Color
Primary Direct Diffuse: Denoised HitT (ReBLUR) | Variance (ReLAX)
Primary Direct Diffuse: NRD Normalized HitT
Primary Direct Specular: Noisy Color
Primary Direct Specular: Noisy Color
Primary Direct Specular: Noisy HitT
Primary Direct Specular: Demodulated Noisy Color
Primary Direct Specular: Denoised Color
Primary Direct Specular: Denoised HitT (ReBLUR) | Variance (ReLAX)
Primary Direct Specular: NRD Normalized HitT
Primary Indirect Diffuse: Noisy Color
Primary Indirect Diffuse: Noisy Color
Primary Indirect Diffuse: Noisy HitT
Primary Indirect Diffuse: Demodulated Noisy Color
Primary Indirect Diffuse: Denoised Color
Primary Indirect Diffuse: Denoised HitT (ReBLUR) | Variance (ReLAX)
Primary Indirect Diffuse: NRD Normalized HitT
Primary Indirect Specular: Noisy Color
Primary Indirect Specular: Diffuse: Noisy Color
Primary Indirect Specular: Diffuse: Noisy HitT
Primary Indirect Specular: Demodulated Noisy Color
Primary Indirect Specular: Denoised Color
Primary Indirect Specular: Denoised HitT (ReBLUR) | Variance (ReLAX)
Primary Indirect Specular: NRD Normalized HitT
Secondary Direct Diffuse: Noisy Color
Secondary Indirect Diffuse: Noisy Color
Secondary Combined Diffuse: Noisy Color
Secondary Combined Diffuse: Demodulated Noisy Color
Secondary Combined Diffuse: Denoised Color
Secondary Direct Speculary: Noisy Color
Secondary Indirect Specular: Noisy Color
Secondary Combined Specular: Noisy Color
Secondary Combined Specular: Demodulated Noisy Color
Secondary Combined Specular: Denoised Color
Thread Divergence (Debug Knob.x)
Inf/Nan Check	Refers to a process or technique used to identify and handle numerical values that are either infinite (Inf) or not-a-number (NaN) during rendering or computation.
Surface / Lobe Consistency Check
Scrolling Line

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