SDSC im2wrl

Description

im2wrl reads an image, creates a quad mesh geometry, colors the verticies by sampling the input image, and saves the resulting (optionally bump-mapped) geometry in a new VRML file. This has quite a few useful benefits:
• Simulates texture maps without expensive, special-purpose, texture hardware.
• Increases interactivity of VRML worlds.
• Alows production of stand-alone VRML files that don't need to inline external image files.
• Potentially reduces disk requirements on servers for VRML worlds.
• Reduces browser memory requirements.
• Speeds VRML world download times.
• Bump-mapping feature creates complex, extruded surfaces.

The input image may be in any format supported by the SDSC Image Tools (currently 30+).

Example 1

This example was produced using the following command line:

im2wrl -scale 0.15 test1.rgb test1.wrl




Input Image

This is the original input image (test1.rgb), in this case an SGI RGB file.


Sample Grid

This is a rendering of the underlying, sampled grid that was created from the input image.


Output Geometry

This is the final, geometric, phong-shaded model (test1.wrl) sampled from the input image.

Example 2

This example was produced using the following command line:

im2wrl -scale 0.15 -bumpscale 2.0 test2.rgb test2.wrl




Input Image

This is the original input image (test2.rgb), in this case an SGI RGB file.


Output Geometry

This is the final, geometric, wireframe model (test2.wrl) sampled from the input image with a bump-map applied.

Authors

John Moreland
San Diego Supercomputer Center

Downloading

Download im2wrl.tar.gz (27.5 KBytes) This is the C source code distribution.
Download im2wrl (2.4 MBytes) This is a ready-to-run SGI ELF binary.