Corona for 3ds Max
Render Stamp Variables
This page provides information on the Render Stamp Variables in Chaos Corona for 3ds Max.
Last updated 10 January 2026
This page provides information on the Render Stamp Variables in Chaos Corona for 3ds Max.
Overview
The Render Stamp is a feature which allows users to customize and display various information, such as render time, date, frame number, and more, as a text in the rendered image.
Settings
When enabled, a text with render information is added to the bottom right corner of the rendered output.
R – Resets the content of the render stamp text field to its defaults.
? – Opens the list of all available variables.
UI Path ||Render Settings|| > System tab > Frame Buffer.

Render Stamp Variables
Render Stamp Variable | Explanation |
|---|
Render Stamp Variable | 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 |
Example
An image with the render stamp visible in the bottom right corner:
