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Mapdev:skyreflectmod - Revision history
2026-04-21T04:04:12Z
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interwiki>Gajop: /* mapinfo.lua */
2018-12-18T15:39:39Z
<p><span class="autocomment">mapinfo.lua</span></p>
<p><b>New page</b></p><div>= Sky Reflection Modifier Texture =<br />
Sets the weight for mixing the diffuse texture colour with the reflected colour of the sky. This occurs before any other shading calculations use the diffuse colour. <br />
<br />
This can be used to suggest a surface composed of reflective materials, such as ice or crystals.<br />
<br />
<center><br />
{| class="wikitable"<br />
|+ Example<br />
| [[File: skyreflectmod_without_example.png|300px]]|| [[File: skyreflectmod_with_example.png|300px]]<br />
|-<br />
! Without Sky Reflection Modifier Map !! With Sky Reflection Modifier Map<br />
|}</center><br />
<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 />
skyReflectModTex = "skyreflectmod.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 />
| RGB<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 />
<pre><br />
Modifies the diffuse colours as follows:<br />
diffuseColor.r = diffuseColor.r * (1 - skyReflectModTex.r) +<br />
reflectionColor.r * skyReflectModTex.r<br />
diffuseColor.g = diffuseColor.g * (1 - skyReflectModTex.g) +<br />
reflectionColor.g * skyReflectModTex.g<br />
diffuseColor.b = diffuseColor.b * (1 - skyReflectModTex.b) +<br />
reflectionColor.b * skyReflectModTex.b<br />
<br />
Equivalent to the GLSL code: (diffuseColor is a vector)<br />
diffuseColor = mix(diffuseColor, reflectionColor, skyReflectModTex)<br />
</pre><br />
<br />
[[Category:Map Dev]]</div>
interwiki>Gajop