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Overview

The Statistics group of attributes controls the reporting of useful statistics about the rendering process. They can be saved as part of the image (in the case of TIFF images only) or into separate files. Statistics are useful to identify problems or pinpoint performance issues. Refer to Detailed Statistics for more details.

3Delight for Maya (RenderMan) > Render Engine: Statistics > RenderPass_Statistics.png

The Statistics group

^{Statistics for frame 1}

^{Software version : 10.0.148 (Jun 17 2013, 3e8a59)}
^{* Render Options :}
^{Render used the 'hidden' hider (REYES)}
^{Image resolution: 960 x 540}
^{Pixel oversampling: 3 x 3}
^{Total number of displays (AOVs) : 1}
^{Shared instances (for massive instancing) : on}

^{* System :}
^{Total physical memory : 6.4GB}
^{CPU Physical cores count: 4, logical cores count: 8}
^{Render threads started by user : 8}
^{Network reads : 2.62 Mb total. Transfer rate: 2687.3 Kb/s}
^{Network writes : 2.49 Mb total. Transfer rate: 2550.5 Kb/s}
^{Load average: 1.7 1.7 1.6}
^{Time to first pixel : 0 seconds.}

^{* Profiling :}

^{task time}
^{ReadArchive 0.0}
^{raytracer init 0.1}
^{raytracing 0.5}
^{surface shaders 0.1}
^{light shaders 0.0}
^{display drivers 0.0}
^{sampling 0.2}
^{screen filtering 0.0}
^{REYES 0.2}
^{procedural expansion 0.0}
^{Total : 1.2}

^{Total process times (user/sys/real) : 6.98 / 0.12 / 1.17}
^{CPU use : 597% user + 10% sys = 608%}

^{* REYES :}
^{Total number of u-polygons : 523836}
^{Average number of u-polygons per grid : 118.221}

^{projected grids : 4431}
^{shaded grids : 4046}
^{displaced grids : 0}

^{total primitives : 3}
^{efficiently rejected prims : 0}

^{Number of non-empty buckets : 1259}
^{Average # of objects per bucket : 27.9905}
^{Maximum # of objects in one bucket : 377}

^{Total trimming operations : 0}

^{Maximum u-polygon area : 2.814}
^{Minimum u-polygon area : 0}
^{Average u-polygon area : 0.76726}

^{Distribution of u-polygon area}
^{+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+}
^{|<=.06|<=.09|<=.12|<=.18|<=.25|<=.35|<=.50|<=.71| <= 1|<=1.4| <= 2|<=2.8| <= 4|<=5.7| >5.7|}
^{+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+}
^{| .24%| .56%| .69%| 1.3%| 3.4%| 4.4%| 6.2%| 10%| 65%| 8.2%| .27%| .03%| 0%| 0%| 0%|}
^{+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+}

^{Distribution of fragment list lengths}
^{+-----+-----+-----+-----+-----+-----+-----+-----+-----+}
^{| <= 1| <= 2| <= 3| <= 4| <= 5| <= 6| <= 7| <= 8| > 8 |}
^{+-----+-----+-----+-----+-----+-----+-----+-----+-----+}
^{| 86%| 10%| 3.7%| .36%| .04%| .01%| .00%| .00%| .00%|}
^{+-----+-----+-----+-----+-----+-----+-----+-----+-----+}

^{Curves grouping efficiency : 100.00 %}

^{* Texture Cache :}
^{Cache size: 0.133 G}
^{Overall texture cache efficiency: 0 %}
^{cache efficiency (2D texture): 0 %}
^{cache efficiency (misc texture): 0 %}
^{2D texture footprint: 0.000 G}
^{misc texture footprint: 0.000 G}

^{* Point Based Occlusion :}
^{Number of evaluations : 0}
^{Considered elements per evaluation : 0}

^{* Map Manager :}
^{Total number of maps used : 0}
^{Total number of texture maps : 0}
^{Total number of shadow maps : 0}
^{Total number of environment maps : 0}
^{Total number of deep shadow maps : 0}
^{Total number of 'invalid' maps : 0}
^{Total number of file open operations : 0}
^{Total number of map requests : 0}
^{Texture IDs}
^{Texture stats}
^{ID Refs Same Search Faults Rate Mipmap (min) Mipmap (max)}

^{* Scene Manager :}
^{Number of objects in the scene : 3}
^{Number of attributes in the scene : 197}
^{Number of transforms in the scene : 196}
^{Primvar compression ratio : 1.91751}
^{Saved memory due to compression : 1.6 Mb}

^{* Memory Profiling :}

^{item current peak}
^{unprocessed gprim 0 99 K}
^{gprim 0 38 K}
^{gprim (polygons) 132 824}
^{gprim (subdiv) 0 0}
^{gprim (curves) 2275 K 3171 K}
^{gprim variables 1542 K 1965 K}
^{particles 0 0}
^{topology data 0 23 K}
^{grid 0 2682 K}
^{shaded grid 0 133 K}
^{grid AOV 0 1942 K}
^{texture objects 0 0}
^{texture cache 0 0}
^{hider and visible points 0 1389 K}
^{image data 4608 2023 K}
^{buffered display data 0 0}
^{shader code 43 K 43 K}
^{shader instance 9912 9912}
^{shader variables 0 556 K}
^{attributes 24 K 42 K}
^{transform 17 K 29 K}
^{subsurface 0 0}
^{point based occlusion 0 0}
^{point cloud 0 0}
^{photon map 0 0}
^{inline archive 0 0}
^{ray tracer 4558 K 4558 K}
^{ray tracer cache 0 0}
^{space partition 1611 K 1611 K}
^{diffuse ray cache 0 0}
^{misc 1017 K 919 K}
^{Total : 11 M 21 M}

^{Peak VM size : 0 K}
^{Peak resident : 400941 K}
^{Peak from malloc : 312315 K}

^{* Space Partitioner :}
^{Total number of nodes : 36759}
^{Motion density : 0 %}
^{Motion segments : 1}
^{Maximum leaf depth : 15}

^{Number of traced rays : 635232}

^{Avg. visited leafs per ray : 0.168553}
^{Avg. visited internal cells per ray : 0.732348}

^{Avg. packet size at root : 156.731}
^{Avg. packet size at leaf : 25.7648}

^{Average depth per leaf : 4.51204}
^{Average objects per leaf : 2.3846}

^{Num bbox intersections (per ray) : 4.23026e+07 (66.5939)}

^{* Ray Tracer :}
^{Total number of traced rays : 635232}
^{Specular : 0.00 % (0)}
^{Transmission : 100.00 % (635232)}
^{Diffuse : 0.00 % (0)}
^{Light (photons) : 0.00 % (0)}
^{Camera : 0.00 % (0)}
^{Waste : 0.14 % (897)}

^{Total number of shader calls : 319621}
^{Specular : 0.00 % (0)}
^{Transmission : 100.00 % (319621)}
^{Diffuse : 0.00 % (0)}
^{Light (photons) : 0.00 % (0)}
^{Camera : 0.00 % (0)}

^{Total travelled distance : 297039}

^{Avg. number of objects in ray's path : 9.65209}
^{Avg. bbox intersections per ray (total) : 2.28581 (5.7243e+06)}
^{Number of ray/patch intersection tests : 2.50428e+06}
^{Bounding volume efficiency : 43.64 %}

^{Avg. active ray packet size : 9.68126}

^{Easy rejections : 0.00 %}
^{Approximations : 0.00 %}
^{cache hit ratio : 0.00 %}
^{cache efficiency : 0.00 %}

^{Shading group size}
^{+-----+-----+-----+-----+-----+-----+-----+}
^{| <= 1| <= 2| <= 4| <= 8|<= 16|<= 32|> 32 |}
^{+-----+-----+-----+-----+-----+-----+-----+}
^{| 34%| 21%| 29%| 13%| 1.8%| .27%| .83%|}
^{+-----+-----+-----+-----+-----+-----+-----+}

^{Ray depth}
^{+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+}
^{| <= 0| <= 1| <= 2| <= 3| <= 4| <= 5| <= 6| <= 7| <= 8| > 8 |}
^{+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+}
^{| 0%| 100%| 0%| 0%| 0%| 0%| 0%| 0%| 0%| 0%|}
^{+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+}

Report Rendering Statistics

This toggle enables the reporting of the rendering statistics. It is off by default.

Statistics File

Specifies the filename where the rendering statistics are stored. By default, it is set to 3delight/<scene>/<pass>.<ext>. If you are rendering to a TIFF image format, you can specify the name of that TIFF file and the statistics will be stored inside that file. This is very useful to keep statistics bound to their image. Clearing this attribute will report the statistics to the standard output (stdout). This attribute is only available when Report Rendering Statistics is enabled.

Log Render Progress (in console or log file)

Turning on this attribute will make 3Delight write the rendering progress by default to the Console (which is bound to 'stderr'). The progress is simply outputted as "0% 1% 2% 3% 4% ... ... 98% 99% 100%". If the Render Mode is set to Export RIB File and Render, then this progress is written in the file specified by the Render Log attribute (see Render Engine). Note: On Windows, the Console is the "Output Window" created by Maya. This attribute is off by default.