192.168.0.151 at 17:13, 11 August 2008

2008-08-11T17:13:52Z

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Enemy Territory shader language has a set of new directives for simplifying shader scripts: ''implicit shaders''.

Implicit shaders do not have explicit shader stages but rather use pre-programmed settings that work with a variety of lighting conditions (vertex lit, diffuse lit, and lightmapped) to give the shader the best possible representation when it is instantiated in the game.

There are three variants: implicitMap, implicitMask, and implicitBlend. They take the form of a single line with either a path to a texture, or a single '-' character.

{|
| class="code" valign="top" | implicitMap
| draws an opaque, single-sided texture
|-
| class="code" valign="top" | implicitMask
| draws a masked (<span class="code">alphaFunc GE128</span>), two-sided texture
|-
| class="code" valign="top" | implicitBlend
| draws a translucent (<span class="code">blendFunc blend</span>), two-sided texture
|}

For example:

{| width="90%" align="center"
| class="codeblock" |
<pre>
textures/wood/plank
{
surfaceparm woodsteps
implicitMap -
}
</pre>
|}

This shader will use the default standard mapping, using 'textures/wood/plank.tga' as the texture (shader name tga extension). The only difference internally between it and a defaulted texture shader is the woodsteps. Internally, if the shader is used on a lightmapped surface, it will use a lightmap. If used on a vertex lit surface, it will be vertex lit.

{| width="90%" align="center"
| class="codeblock" |
<pre>
textures/wood/plank_nonsolid
{
qer_editorimage textures/wood/plank.tga
surfaceparm nonsolid
implicitMap textures/wood/plank.tga
}
</pre>
|}

This texture differs from the previous one in that it explicitly specifies a texture to use.

[[Category:WET Documentation]]

Implicit Shaders - Revision history

192.168.0.151 at 17:13, 11 August 2008