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Mapdev:parallax - Revision history
2026-04-21T06:05:45Z
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mapdevinter>Gajop: /* mapinfo.lua */
2018-12-18T15:37:26Z
<p><span class="autocomment">mapinfo.lua</span></p>
<p><b>New page</b></p><div>= Parallax Texture =<br />
modifies the diffuse, normal, and specular<br />
TEXTURE COORDINATES before sampling is done<br />
<br />
{{FIXME}} description as to why you want to use Parallax textures.<br />
<center><br />
{| class="wikitable"<br />
|+ Example<br />
| {{FIXME}} needs image file || {{FIXME}} needs image file<br />
|-<br />
! Without Parallax Map !! With Parallax Map<br />
|}</center><br />
= Specification =<br />
== mapinfo.lua ==<br />
The relevant sections of the [[Mapdev:mapinfo.lua|mapinfo.lua]]<br />
<pre><br />
local mapinfo = {<br />
...<br />
resources = {<br />
...<br />
parallaxHeightTex = "parallax.png",<br />
...<br />
},<br />
...<br />
}</pre><br />
<br />
== Image File==<br />
{| class="wikitable" width="100%"<br />
! width="15%" | File Location<br />
| ./maps/<br />
|-<br />
! File Format<br />
| PNG, TGA<br />
|-<br />
! Colour Depth<br />
| 8bpp<br />
|-<br />
! Channels<br />
| RGBA<br />
|-<br />
! Resolution<br />
| Any, recommended powers of two, will be stretched over the terrain. Should be the same size as the [[Mapdev:specular]] image<br />
|}<br />
{{FIXME}} needs cleaning.<br />
<pre><br />
height, scale, and bias parameters are packed<br />
as follows to produce a texel offset-factor f<br />
<br />
h = (parallaxHeightTex.r * 65280 + parallaxHeightTex.g * 256) / 65536<br />
s = (parallaxHeightTex.b)<br />
b = (parallaxHeightTex.a - 0.5)<br />
f = h * s + b<br />
</pre><br />
<br />
= Forum Discussions =<br />
* [http://springrts.com/phpbb/viewtopic.php?f=13&t=29108 Parallax Maps?]<br />
<br />
[[Category:Map Dev]]</div>
mapdevinter>Gajop