WavyLinesLatLong.exr

https://raw.githubusercontent.com/AcademySoftwareFoundation/openexr-images/main/MultiResolution/WavyLinesLatLong.exr

../../_images/MultiResolution_WavyLinesLatLong.jpg

An environment map, in latitude-longitude format, that can be used to test how an application program, for example, a 3D renderer, handles the seams of environment maps. The environment image contains multiple sets of wavy lines. Each set consists of three parallel lines of equal width. Parts of the middle line run along one of the map’s seams, crossing back and forth over the seam. In a latitude-longitude map, there is a seam along the meridian with longitude +/-pi. If the environment map is correctly projected onto a sphere, then the seams should be invisible, and all lines should appear to have the same uniform width everywhere. It should be impossible or at least difficult to tell where the middle line in each set crosses one of the map’s seams.

lineOrder

increasing y

displayWindow

(0 0) - (1023 511)

owner

Copyright 2005 Industrial Light & Magic

screenWindowWidth

1

tiles

mip-map, tile size 64 by 64 pixels, level sizes rounded down

screenWindowCenter

(0 0)

type

tiledimage

dataWindow

(0 0) - (1023 511)

compression

zip, multi-scanline blocks

pixelAspectRatio

1

channels

B, G, R

envmap

latitude-longitude map