TCR to MTV Converter

Convert TCR ebooks to MTV raytracing format free

Drop files here. 1 GB maximum file size or Sign Up
to
Facebook Amazon Microsoft Tesla Nestle Walmart L'Oreal

PalmOS Text for Raytracing

Transform TCR compressed ebook text into MTV format — a simple image standard from the early days of computer graphics and raytracing.

No Software Needed

Run the entire conversion on Convertio servers via your browser. No raytracing tools or graphics software to install on your machine.

Fast Turnaround

Both TCR and MTV are lightweight formats — conversion finishes nearly instantly without any noticeable waiting time.

How to convert TCR to MTV

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose mtv or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your mtv file right afterwards

About formats

TCR (Text Compression for Reader) is a compressed plain-text ebook format developed by Barry Childress in the early 1990s for the Psion Series 3 family of palmtop computers. The format was created for Childress's Reader3 application, a text file viewer that needed to fit large books into the Psion's extremely limited storage — typically 128 KB to 2 MB of available memory. TCR uses a dictionary-based compression scheme derived from the earlier ZVR format by Ian Giddings, replacing repeated byte sequences with single-byte tokens that reference a header dictionary. This straightforward approach achieves compression ratios of roughly 40-60% on typical English prose while requiring minimal CPU resources for decompression. The Psion Series 3 ran on a 3.84 MHz NEC V30 processor with no floating-point unit, so TCR's low computational overhead was essential for smooth page-by-page reading. A key advantage is remarkable storage efficiency for its simplicity — users could carry dozens of novels on removable SSD cards that held only a few hundred kilobytes. The format found a dedicated user community among Psion enthusiasts who built libraries of compressed literature for portable reading years before smartphones existed. Though the Psion platform faded from the market in the early 2000s, TCR files can still be opened and converted by modern ebook tools, and the format stands as an early example of purpose-built mobile reading technology from the pre-smartphone era.
Developer: Barry Childress
Initial release: 1993
MTV is a simple raster image format created by Mark T. VandeWettering for the MTV Ray Tracer, a ray tracing program released in 1988 as one of the early publicly available ray tracers distributed through Usenet. The format stores 24-bit RGB images with a minimal text header followed by raw pixel data. The header consists of a single line containing the image width and height as ASCII integers, followed immediately by the pixel data where each pixel occupies three bytes (red, green, blue) arranged in row-major order from top-left to bottom-right. The MTV Ray Tracer itself was significant in the history of computer graphics — distributed freely via the comp.graphics Usenet newsgroup, it introduced many programmers and students to the principles of ray tracing: ray-object intersection, reflection, refraction, shadows, and recursive shading. The MTV format was the program's native output, and its simplicity made it easy for users to write custom viewers and converters on whatever platform they had access to — a practical necessity in the fragmented Unix workstation landscape of the late 1980s. One advantage is extreme implementation simplicity: the format can be read in a handful of lines of code in any programming language, with no libraries, no compression algorithms, and no metadata parsing required — just read two integers and then read width x height x 3 bytes of pixel data. The format's historical significance in the computer graphics community provides another dimension — MTV files from early ray tracing experiments represent primary artifacts from the era when ray tracing transitioned from academic research to accessible software. MTV files are supported by ImageMagick and various legacy graphics tools.
Initial release: 1988

Frequently Asked Questions

Why convert TCR to MTV?

TCR is an extinct PalmOS text format. MTV is a simple raytracing image format — useful when your CG pipeline requires MTV format texture input.

What software uses MTV files?

The MTV raytracer reads this format natively. ImageMagick can open and convert MTV images. It is mainly used in legacy raytracing workflows.

Is MTV a widely supported format?

MTV is very niche — it originated with Mark VandeWettering MTV raytracer. Modern 3D tools rarely encounter it outside of legacy projects.

Can I convert multiple TCR files to MTV at once?

Batch conversion is supported. Upload several TCR files simultaneously and each one converts to MTV independently in a single session.

Is this conversion free?

Yes, Convertio offers TCR to MTV conversion for free. Premium plans add batch processing and faster queues for heavier workloads.