Clear VFB in between renders – When enabled, the frame buffer is reset to black before each rendering. When disabled, the last render stays on and is gradually replaced by the new one.
Render stamp – When enabled, text with render information overlays on the bottom right corner of the rendered output. You can click the little > button before the checkbox to see the list of all available %-variables you can use.
UI Text Box
type
tip
The content of the render stamp accepts text and the special %-variables listed under the > button.
Expand
title
Click here to see the available variables for the render stamp
Renderstamp varialble
Explanation
%ptp
Performance: Parsing time (in milliseconds)
%ptg
Performance: Geometry preprocessing time (in milliseconds)
%pts
Performance: Secondary solver precomputation time (in milliseconds)
%ptd
Performance: Denoising time (in milliseconds)
%pt
Performance: Total elapsed time
%pr
Performance: Rays per second
%ps
Performance: Rays per sample
%pp
Performance: Passes
%pe
Performance: Noise level
%sl
Scene: Number of light primitives
%so
Scene: Number of objects
%si
Scene: Number of instanced primitives
%su
Scene: Number of unique primitives
%sd
Scene: Number of displacement primitives
%c
CPU name
%ct
Number of CPU thread(s)
%bn
Corona build name
%b
Corona build datestamp
%d
Current date/time
%h
Current time
%f
Currently rendered filename
%n
Actual frame number
%o
Output filename
%v
Current camera name
%i
This computer name
%mc
Memory currently used by Corona
%mcp
Peak memory used by Corona
%mp
Virtual memory currently used by the host application + Corona Renderer
%mpp
Peak virtual memory used by the host application + Corona Renderer for that session of the host application
%ms
Virtual memory used by the system
UI Text Box
type
info
You can find the list of all available Render Stamp variables here.
Column
width
5%
Column
width
45%
...
Section
Column
width
50%
Type – The image pre-filters suppress Moiré patterns and other artifacts by slightly blurring the image. Most filters produce visually almost equal results.
Available filter types are:
High Quality – This filter produces better anti-aliasing and DoF than other filters. It does not work with AI denoising. Box – This filter has the most significant blurring of all the filters. Tent – This filter offers a good tradeoff between blurring and sharpness. Symmetric tent – This filter is a variant of the tent filter with bigger diagonal blurring. Parabolic – This filter has the second most significant blurring of the filters. Hann – This filter has low diagonal blurring and a smaller tail than the other filters. Blackman-Harris – This filter is the sharpest, resulting in the least blurring of all the filters (except for None). None – This option disables the filtering entirely, resulting in a perfectly sharp image.
Width [px] – The filter radius in pixels. A larger value slightly blurs the image to improve anti-aliasing and removes the Moiré effect. The default value of 2.0 works fine in most cases.
Highlight clamping – Clamps all samples to this maximum value before they are written into the frame buffer. This can help to reduce noise and improve anti-aliasing around bright light edges at the cost of bias. Setting the value too low results in visibly clamped highlights. Set to 0 to disable for unbiased, highest-quality output.
