SSR

章节:

降噪选项

The section contains settings that control screen-space reflections (SSR).本节包含控制屏幕空间反射（SSR）的设置。

Screen-space reflections settings

屏幕空间反射设置

Enabled	Toggles the SSR effect on and off.开启和关闭SSR效果。
Increased Accuracy	Toggles increased accuracy of ray tracing for the SSR effect on and off. This option reduces visual artifacts around objects, which can appear at low resolution (lower than full), by increasing accuracy of the last step.切换光线跟踪的准确性，以启用和禁用SSR效果。此选项通过提高最后一步的精度来减少对象周围的视觉伪像，这些伪像可能以低分辨率（低于完整分辨率）出现。
Fast Tracing	Toggles fast tracing for the SSR effect on and off. This mode makes it possible to obtain distant reflections using low number of steps while keeping performance high. However, tiny objects may not be reflected. Disabling this mode improves quality but significantly drops performance.切换快速跟踪以启用和禁用SSR效果。该模式可以在保持较高性能的同时，以较少的步长获得远处的反射。但是，细小的物体可能无法反射。禁用此模式可以提高质量，但会大大降低性能。
Resolution	Resolution of the SSR: Quarter — 1/4 resolution (by default)Quarter — 1/4 resolution (by default) Half — 1/2 resolutionHalf — 1/2 resolution Full — full resolutionFull — full resolution 注意 Can be controlled by render_ssr_resolution console command.Can be controlled by render_ssr_resolution console command. Quarter — 1/4 resolution (by default)Half — 1/2 resolutionFull — full resolutionCan be controlled by render_ssr_resolution console command.SSR的分辨率： Quarter — 1/4 resolution (by default)Quarter — 1/4分辨率（默认情况下） Half — 1/2 resolutionHalf-1/2分辨率 Full — full resolutionFull-完整分辨率注意 Can be controlled by render_ssr_resolution console command.可以通过 render_ssr_resolution 控制台命令进行控制。
Resolution Depth	Resolution of the depth buffer used for SSR calculation. This option affects detailing of reflections of tiny objects. Quarter — 1/4 resolutionQuarter — 1/4 resolution Half — 1/2 resolutionHalf — 1/2 resolution Full — full resolutionFull — full resolution 注意 To gain performance, this option can be set to lower values while enabling Increased Accuracy.To gain performance, this option can be set to lower values while enabling Increased Accuracy. Quarter — 1/4 resolutionHalf — 1/2 resolutionFull — full resolutionTo gain performance, this option can be set to lower values while enabling Increased Accuracy.用于SSR计算的深度缓冲区的分辨率。此选项影响微小物体反射的细节。 Quarter — 1/4 resolutionQuarter-1/4分辨率 Half — 1/2 resolutionHalf-1/2分辨率 Full — full resolutionFull-完整分辨率注意 To gain performance, this option can be set to lower values while enabling Increased Accuracy.为了获得性能，可以在启用Increased Accuracy的同时将此选项设置为较低的值。
Resolution Color	Resolution of the color buffer used for SSR calculation. This option significantly affects performance. Quarter — 1/4 resolution (by default)Quarter — 1/4 resolution (by default) Half — 1/2 resolutionHalf — 1/2 resolution Full — full resolutionFull — full resolution Quarter — 1/4 resolution (by default)Half — 1/2 resolutionFull — full resolution用于SSR计算的颜色缓冲区的分辨率。此选项会严重影响性能。 Quarter — 1/4 resolution (by default)Quarter — 1/4分辨率（默认情况下） Half — 1/2 resolutionHalf-1/2分辨率 Full — full resolutionFull-完整分辨率
Num Rays	Number of rays of SSR traced per pixel that are used to calculate rough refrections. Using more rays provides more precise SSR roughness calculation, however, it is more expensive.每个像素跟踪的SSR射线数，用于计算粗糙反射。使用更多的射线可以提供更精确的SSR粗糙度计算，但是更昂贵。
Num Steps	Number of steps of SSR per ray that are used for trace calculation. Defines accuracy of reflections and causes a reasonable performance impact. The higher the value, the more accurate obstacles between objects are accounted.用于跟踪计算的每条射线的SSR步数。定义反射的准确性并引起合理的性能影响。值越高，说明对象之间的障碍越准确。
Step Size	Size of the trace step used for SSR calculation. The higher the value, the longer the trace. However, tiny objects may be missed. The lower the value, the more detailed reflections of the tiny objects will be.用于SSR计算的跟踪步骤的大小。值越高，走线越长。但是，可能会遗漏微小的物体。值越低，微小对象的反射越详细。
Noise Step	Intensity of the step noise used for SSR calculation. This parameter is used to reduce the banding effect of tracing by using the noise.用于SSR计算的阶跃噪声强度。此参数用于通过使用噪声来降低跟踪的带状效果。
Noise Ray	Intensity of the ray noise used for SSR calculation. This parameter is used to reduce the banding effect on rough reflections by using the noise.用于SSR计算的射线噪声强度。此参数用于通过使用噪声来减少对粗糙反射的条带效应。
Visibility Roughness Min	Minimum roughness value of the reflective material, at which the SSR effect is fully visible. Using this option together with Visibility Roughness Max allows reducing noise of reflections on rough materials.完全可见SSR效果的反射材料的最小粗糙度值。将此选项与Visibility Roughness Max一起使用可减少粗糙材料上反射的噪声。
Visibility Roughness Max	Maximum roughness value of the reflective material, at which the SSR effect is not rendered. Using this option together with Visibility Roughness Min allows reducing noise of reflections on rough materials.反射材料的最大粗糙度值，不呈现SSR效果。将此选项与Visibility Roughness Min一起使用可减少粗糙材料上反射的噪声。
Threshold	Limits imitation of reflections in areas where SSR cannot get information. The higher the value, the less this effect is.限制在SSR无法获取信息的区域中模仿反射。值越高，效果越差。
Threshold Occlusion	Limits imitation of environment cubemap occlusion in areas where SSR cannot get information. The higher the value, the less this effect is. This parameter is mainly used for indoor environment to correct false reflections on occluded areas (false reflections are replaced with black color). For outdoor environment higher values of this parameter are recommended.限制在SSR无法获取信息的区域模仿环境立方体贴图遮挡。值越高，效果越差。此参数主要用于室内环境，以校正遮挡区域上的虚假反射（虚假反射替换为黑色）。对于室外环境，建议使用更高的此参数值。
Normal Bias	Shifting of the ray starting position along the normal vector. Can be adjusted to fine-tune reflections of small objects at far distances. Recommended for narrow FOV angles.射线起始位置沿法线向量的移动。可以调整以微调远处小物体的反射。推荐用于窄视角。
View Bias	Shifting of the ray starting position along the view vector. Can be adjusted to fine-tune reflections of small objects at far distances. Recommended for narrow FOV angles.射线起始位置沿视图矢量的移动。可以调整以微调远处小物体的反射。推荐用于窄视角。
Color Clamping Intensity	Intensity of TAA color clamping at zero pixel velocity: lower values result in more accumulated frames combined, which reduces noise flickering, but increases ghosting effect (to reduce ghosting in this case you can use the Color Clamping Velocity parameter).lower values result in more accumulated frames combined, which reduces noise flickering, but increases ghosting effect (to reduce ghosting in this case you can use the Color Clamping Velocity parameter). higher values up to 1 (default) reduce ghosting effect, but increase flickeringhigher values up to 1 (default) reduce ghosting effect, but increase flickering lower values result in more accumulated frames combined, which reduces noise flickering, but increases ghosting effect (to reduce ghosting in this case you can use the Color Clamping Velocity parameter).higher values up to 1 (default) reduce ghosting effect, but increase flickering在零像素速度下TAA色彩夹持的强度： lower values result in more accumulated frames combined, which reduces noise flickering, but increases ghosting effect (to reduce ghosting in this case you can use the Color Clamping Velocity parameter).较低的值会导致更多的累积帧组合，从而减少了噪声闪烁，但增加了重影效果（在这种情况下，可以使用Color Clamping Velocity参数来减少重影）。 higher values up to 1 (default) reduce ghosting effect, but increase flickering更高值最高为1（默认值）可减少重影效果，但会增加闪烁
Color Clamping Velocity	Sensitivity of TAA color clamping to pixel velocity change. This parameter is used to reduce ghosting effect for lower Color Clamping Intensity values: it automatically increases clamping intensity for higher velocities, and disables clamping for low velocity values.TAA色彩钳位对像素速度变化的敏感性。此参数用于降低较低的 Color Clamping Intensity值的重影效果：它会自动增加较高的速度的夹持强度，并禁用较低的速度值的夹持。

Denoise Options降噪选项#

Denoise	Toggles noise reduction for the SSR effect on and off. 注意 Noise reduction is effective only for screen-space reflections on rough surfaces. Reflections on smooth surfaces (Roughness = 0) will not be affected.Noise reduction is effective only for screen-space reflections on rough surfaces. Reflections on smooth surfaces (Roughness = 0) will not be affected. Noise reduction is effective only for screen-space reflections on rough surfaces. Reflections on smooth surfaces (Roughness = 0) will not be affected.切换降噪以启用和禁用SSR效果。注意 Noise reduction is effective only for screen-space reflections on rough surfaces. Reflections on smooth surfaces (Roughness = 0) will not be affected.降噪仅对粗糙表面上的屏幕空间反射有效。光滑表面上的反射（粗糙度= 0）将不受影响。
Radius	Radius of the area to be affected by noise reduction.受降噪影响的区域的半径。
Quality	Noise reduction quality level defining the number of samples used: Low — low qualityLow — low quality Medium — medium qualityMedium — medium quality High — high qualityHigh — high quality Ultra — ultra qualityUltra — ultra quality Higher values provide better reduction, but for a performance cost (choosing Medium is enough in most cases). Low — low qualityMedium — medium qualityHigh — high qualityUltra — ultra quality降噪质量等级，定义了所使用的样本数量： Low — low qualityLow —低质量 Medium — medium qualityMedium-中等品质 High — high qualityHigh —高质量 Ultra — ultra qualityUltra —超高品质较高的值可以提供更好的降低效果，但是会降低性能成本（在大多数情况下，选择 Medium 就足够了）。
Intensity	Noise reduction intensity: higher values provide a less noisy, but more blurred result.降噪强度：较高值可减少噪点，但结果会更加模糊。
Gaussian Sigma	Sigma parameter of Gaussian blur used for noise reduction. This parameter controls the amount of blur applied.高斯模糊的Sigma参数用于降噪。此参数控制应用的模糊量。
Threshold	Threshold value for color difference of neighboring pixels: blur is applied when the color difference is less than the threshold value. 注意 Setting too high values result in blurring the whole image.Setting too high values result in blurring the whole image. Setting too high values result in blurring the whole image.相邻像素的色差阈值：当色差小于阈值时应用模糊。注意 Setting too high values result in blurring the whole image.设置太高的值会导致整个图像模糊。

最新更新: 2021-04-09

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