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fgdata/Effects/tree.eff
Stuart Buchanan 1b8c05b162 Fix black border on trees. 
- Add additional property checks for multisampling.
- Add transparent background with appropriate color for each tree
- Add conversion script to generate .dds and low rez trees easily.
2013-05-16 22:40:36 +01:00

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<?xml version="1.0" encoding="utf-8"?>
<!-- Effects files for trees, which are placed by a shader. -->
<!-- Trees are drawn in two passes. The first draws the opaque parts
with z writes enabled. The second draws the the transparent bits
with z testing enabled and z writes disabled. The transparent
tree silhouettes will blend correctly against the opaque
geometry. They may cause artifacts when blending against other
edges, but the overall "forest" is supposed to be nice and
fuzzy. There might also be artifacts when blending over other
transparent objects, but that's mostly unavoidable.
Note: no sorting needed! -->
<PropertyList>
<name>Effects/tree</name>
<parameters>
<texture n ="0">
</texture>
<!-- fog include -->
<visibility><use>/environment/ground-visibility-m</use></visibility>
<avisibility><use>/environment/visibility-m</use></avisibility>
<lthickness><use>/environment/ground-haze-thickness-m</use></lthickness>
<scattering><use>/rendering/scene/scattering</use></scattering>
<ground_scattering><use>/environment/surface/scattering</use></ground_scattering>
<terminator><use>/environment/terminator-relative-position-m</use></terminator>
<fogtype><use>/sim/rendering/shaders/skydome</use></fogtype>
<terrain_alt><use>/environment/mean-terrain-elevation-m</use></terrain_alt>
<overcast><use>/rendering/scene/overcast</use></overcast>
<eye_alt><use>/sim/rendering/eye-altitude-m</use></eye_alt>
<snow_level><use>/environment/snow-level-m</use></snow_level>
<season><use>/environment/tree-season</use></season>
<dust_cover_factor><use>/environment/surface/dust-cover-factor</use></dust_cover_factor>
<fogtype><use>/sim/rendering/shaders/skydome</use></fogtype>
<fogstructure><use>/environment/fog-structure</use></fogstructure>
<quality_level><use>/sim/rendering/shaders/landmass</use></quality_level>
<!-- END fog include -->
</parameters>
<technique n="4">
<predicate>
<and>
<property>/sim/rendering/shaders/skydome</property>
<property>/sim/rendering/random-vegetation</property>
<property>/sim/rendering/multi-sample-buffers</property>
<less-equal>
<value type="float">1.0</value>
<float-property>/sim/rendering/multi-samples</float-property>
</less-equal>
<extension-supported>GL_ARB_shader_objects</extension-supported>
<extension-supported>GL_ARB_shading_language_100</extension-supported>
<extension-supported>GL_ARB_vertex_shader</extension-supported>
<extension-supported>GL_ARB_fragment_shader</extension-supported>
<extension-supported>GL_ARB_multisample</extension-supported>
</and>
</predicate>
<pass>
<lighting>true</lighting>
<material>
<ambient type="vec4d">1.0 1.0 1.0 1.0</ambient>
<diffuse type="vec4d">1.0 1.0 1.0 1.0</diffuse>
<color-mode>off</color-mode>
</material>
<texture-unit>
<unit>0</unit>
<type>2d</type>
<image>
<use>texture[0]/image</use>
</image>
<wrap-s>clamp</wrap-s>
<wrap-t>clamp</wrap-t>
</texture-unit>
<alpha-to-coverage>true</alpha-to-coverage>
<program>
<vertex-shader>Shaders/tree-haze.vert</vertex-shader>
<fragment-shader>Shaders/tree-haze.frag</fragment-shader>
</program>
<uniform>
<name>visibility</name>
<type>float</type>
<value><use>visibility</use></value>
</uniform>
<uniform>
<name>avisibility</name>
<type>float</type>
<value><use>avisibility</use></value>
</uniform>
<uniform>
<name>hazeLayerAltitude</name>
<type>float</type>
<value><use>lthickness</use></value>
</uniform>
<uniform>
<name>scattering</name>
<type>float</type>
<value><use>scattering</use></value>
</uniform>
<uniform>
<name>ground_scattering</name>
<type>float</type>
<value><use>ground_scattering</use></value>
</uniform>
<uniform>
<name>terminator</name>
<type>float</type>
<value><use>terminator</use></value>
</uniform>
<uniform>
<name>terrain_alt</name>
<type>float</type>
<value><use>terrain_alt</use></value>
</uniform>
<uniform>
<name>overcast</name>
<type>float</type>
<value><use>overcast</use></value>
</uniform>
<uniform>
<name>eye_alt</name>
<type>float</type>
<value><use>eye_alt</use></value>
</uniform>
<uniform>
<name>dust_cover_factor</name>
<type>float</type>
<value><use>dust_cover_factor</use></value>
</uniform>
<uniform>
<name>snow_level</name>
<type>float</type>
<value><use>snow_level</use></value>
</uniform>
<uniform>
<name>season</name>
<type>int</type>
<value><use>season</use></value>
</uniform>
<uniform>
<name>texture</name>
<type>sampler-2d</type>
<value type="int">0</value>
</uniform>
<uniform>
<name>colorMode</name>
<type>int</type>
<value>2</value> <!-- AMBIENT_AND_DIFFUSE -->
</uniform>
<uniform>
<name>quality_level</name>
<type>int</type>
<value><use>quality_level</use></value>
</uniform>
</pass>
</technique>
<technique n="5">
<predicate>
<and>
<property>/sim/rendering/shaders/skydome</property>
<property>/sim/rendering/random-vegetation</property>
<or>
<less-equal>
<value type="float">2.0</value>
<glversion/>
</less-equal>
<and>
<extension-supported>GL_ARB_shader_objects</extension-supported>
<extension-supported>GL_ARB_shading_language_100</extension-supported>
<extension-supported>GL_ARB_vertex_shader</extension-supported>
<extension-supported>GL_ARB_fragment_shader</extension-supported>
</and>
</or>
</and>
</predicate>
<pass>
<lighting>true</lighting>
<material>
<ambient type="vec4d">1.0 1.0 1.0 1.0</ambient>
<diffuse type="vec4d">1.0 1.0 1.0 1.0</diffuse>
<color-mode>off</color-mode>
</material>
<texture-unit>
<unit>0</unit>
<type>2d</type>
<image>
<use>texture[0]/image</use>
</image>
<wrap-s>clamp</wrap-s>
<wrap-t>clamp</wrap-t>
</texture-unit>
<alpha-test>
<comparison>gequal</comparison>
<reference type="float">0.1</reference>
</alpha-test>
<program>
<vertex-shader>Shaders/tree-haze.vert</vertex-shader>
<fragment-shader>Shaders/tree-haze.frag</fragment-shader>
</program>
<uniform>
<name>visibility</name>
<type>float</type>
<value><use>visibility</use></value>
</uniform>
<uniform>
<name>avisibility</name>
<type>float</type>
<value><use>avisibility</use></value>
</uniform>
<uniform>
<name>hazeLayerAltitude</name>
<type>float</type>
<value><use>lthickness</use></value>
</uniform>
<uniform>
<name>scattering</name>
<type>float</type>
<value><use>scattering</use></value>
</uniform>
<uniform>
<name>ground_scattering</name>
<type>float</type>
<value><use>ground_scattering</use></value>
</uniform>
<uniform>
<name>terminator</name>
<type>float</type>
<value><use>terminator</use></value>
</uniform>
<uniform>
<name>terrain_alt</name>
<type>float</type>
<value><use>terrain_alt</use></value>
</uniform>
<uniform>
<name>overcast</name>
<type>float</type>
<value><use>overcast</use></value>
</uniform>
<uniform>
<name>eye_alt</name>
<type>float</type>
<value><use>eye_alt</use></value>
</uniform>
<uniform>
<name>dust_cover_factor</name>
<type>float</type>
<value><use>dust_cover_factor</use></value>
</uniform>
<uniform>
<name>snow_level</name>
<type>float</type>
<value><use>snow_level</use></value>
</uniform>
<uniform>
<name>season</name>
<type>int</type>
<value><use>season</use></value>
</uniform>
<uniform>
<name>texture</name>
<type>sampler-2d</type>
<value type="int">0</value>
</uniform>
<uniform>
<name>colorMode</name>
<type>int</type>
<value>2</value> <!-- AMBIENT_AND_DIFFUSE -->
</uniform>
<uniform>
<name>quality_level</name>
<type>int</type>
<value><use>quality_level</use></value>
</uniform>
</pass>
</technique>
<technique n="8">
<predicate>
<and>
<property>/sim/rendering/rembrandt/enabled</property>
<property>/sim/rendering/random-vegetation</property>
</and>
</predicate>
<pass n="0">
<lighting>true</lighting>
<material>
<ambient type="vec4d">1.0 1.0 1.0 1.0</ambient>
<diffuse type="vec4d">1.0 1.0 1.0 1.0</diffuse>
<color-mode>off</color-mode>
</material>
<alpha-test>
<comparison>gequal</comparison>
<reference type="float">0.1</reference>
</alpha-test>
<texture-unit>
<unit>0</unit>
<type>2d</type>
<image>
<use>texture[0]/image</use>
</image>
<wrap-s>clamp</wrap-s>
<wrap-t>clamp</wrap-t>
</texture-unit>
<program>
<vertex-shader>Shaders/deferred-tree.vert</vertex-shader>
<fragment-shader>Shaders/deferred-tree.frag</fragment-shader>
<fragment-shader>Shaders/gbuffer-functions.frag</fragment-shader>
<fragment-shader>Shaders/gbuffer-encode.frag</fragment-shader>
</program>
<uniform>
<name>season</name>
<type>int</type>
<value><use>season</use></value>
</uniform>
<uniform>
<name>texture</name>
<type>sampler-2d</type>
<value type="int">0</value>
</uniform>
</pass>
</technique>
<technique n="9">
<predicate>
<and>
<property>/sim/rendering/random-vegetation</property>
<property>/sim/rendering/multi-sample-buffers</property>
<less-equal>
<value type="float">1.0</value>
<float-property>/sim/rendering/multi-samples</float-property>
</less-equal>
<extension-supported>GL_ARB_multisample</extension-supported>
<extension-supported>GL_ARB_vertex_shader</extension-supported>
<extension-supported>GL_ARB_fragment_shader</extension-supported>
<less-equal>
<value type="float">1.0</value>
<shader-language/>
</less-equal>
</and>
</predicate>
<pass n="0">
<lighting>true</lighting>
<material>
<ambient type="vec4d">1.0 1.0 1.0 1.0</ambient>
<diffuse type="vec4d">1.0 1.0 1.0 1.0</diffuse>
<color-mode>off</color-mode>
</material>
<alpha-to-coverage>true</alpha-to-coverage>
<texture-unit>
<unit>0</unit>
<type>2d</type>
<image>
<use>texture[0]/image</use>
</image>
<wrap-s>clamp</wrap-s>
<wrap-t>clamp</wrap-t>
</texture-unit>
<program>
<!-- <vertex-shader>Shaders/include_fog.vert</vertex-shader> -->
<vertex-shader>Shaders/tree.vert</vertex-shader>
<fragment-shader n="0">Shaders/include_fog.frag</fragment-shader>
<fragment-shader n="1">Shaders/tree.frag</fragment-shader>
</program>
<uniform>
<name>baseTexture</name>
<type>sampler-2d</type>
<value type="int">0</value>
</uniform>
<!-- BEGIN fog include -->
<uniform>
<name>visibility</name>
<type>float</type>
<value>
<use>visibility</use>
</value>
</uniform>
<uniform>
<name>avisibility</name>
<type>float</type>
<value>
<use>avisibility</use>
</value>
</uniform>
<uniform>
<name>hazeLayerAltitude</name>
<type>float</type>
<value>
<use>lthickness</use>
</value>
</uniform>
<uniform>
<name>scattering</name>
<type>float</type>
<value>
<use>scattering</use>
</value>
</uniform>
<uniform>
<name>terminator</name>
<type>float</type>
<value>
<use>terminator</use>
</value>
</uniform>
<uniform>
<name>fogType</name>
<type>int</type>
<value>
<use>fogtype</use>
</value>
</uniform>
<uniform>
<name>season</name>
<type>int</type>
<value><use>season</use></value>
</uniform>
<!-- END fog include -->
</pass>
</technique>
<technique n="10">
<predicate>
<and>
<property>/sim/rendering/shaders/quality-level</property>
<property>/sim/rendering/random-vegetation</property>
<less-equal>
<value type="float">1.0</value>
<shader-language/>
</less-equal>
</and>
</predicate>
<pass n="0">
<lighting>true</lighting>
<material>
<ambient type="vec4d">1.0 1.0 1.0 1.0</ambient>
<diffuse type="vec4d">1.0 1.0 1.0 1.0</diffuse>
<color-mode>off</color-mode>
</material>
<alpha-test>
<comparison>gequal</comparison>
<reference type="float">0.33</reference>
</alpha-test>
<texture-unit>
<unit>0</unit>
<type>2d</type>
<image>
<use>texture[0]/image</use>
</image>
<wrap-s>clamp</wrap-s>
<wrap-t>clamp</wrap-t>
</texture-unit>
<program>
<!-- <vertex-shader>Shaders/include_fog.vert</vertex-shader> -->
<vertex-shader>Shaders/tree.vert</vertex-shader>
<fragment-shader n="0">Shaders/include_fog.frag</fragment-shader>
<fragment-shader n="1">Shaders/tree.frag</fragment-shader>
</program>
<uniform>
<name>baseTexture</name>
<type>sampler-2d</type>
<value type="int">0</value>
</uniform>
<!-- BEGIN fog include -->
<uniform>
<name>visibility</name>
<type>float</type>
<value>
<use>visibility</use>
</value>
</uniform>
<uniform>
<name>avisibility</name>
<type>float</type>
<value>
<use>avisibility</use>
</value>
</uniform>
<uniform>
<name>hazeLayerAltitude</name>
<type>float</type>
<value>
<use>lthickness</use>
</value>
</uniform>
<uniform>
<name>scattering</name>
<type>float</type>
<value>
<use>scattering</use>
</value>
</uniform>
<uniform>
<name>terminator</name>
<type>float</type>
<value>
<use>terminator</use>
</value>
</uniform>
<uniform>
<name>fogType</name>
<type>int</type>
<value>
<use>fogtype</use>
</value>
</uniform>
<uniform>
<name>season</name>
<type>int</type>
<value><use>season</use></value>
</uniform>
<!-- END fog include -->
</pass>
<pass n="1">
<lighting>true</lighting>
<material>
<ambient type="vec4d">1.0 1.0 1.0 1.0</ambient>
<diffuse type="vec4d">1.0 1.0 1.0 1.0</diffuse>
<color-mode>off</color-mode>
</material>
<render-bin>
<bin-number>2</bin-number>
<bin-name>RenderBin</bin-name>
</render-bin>
<alpha-test>
<comparison>less</comparison>
<reference type="float">0.33</reference>
</alpha-test>
<blend>
<source>src-alpha</source>
<destination>one-minus-src-alpha</destination>
</blend>
<depth>
<write-mask>false</write-mask>
</depth>
<texture-unit>
<unit>0</unit>
<type>2d</type>
<image>
<use>texture[0]/image</use>
</image>
<wrap-s>clamp</wrap-s>
<wrap-t>clamp</wrap-t>
</texture-unit>
<program>
<!-- <vertex-shader n="0">Shaders/include_fog.vert</vertex-shader> -->
<vertex-shader n="1">Shaders/tree.vert</vertex-shader>
<fragment-shader n="0">Shaders/include_fog.frag</fragment-shader>
<fragment-shader n="1">Shaders/tree.frag</fragment-shader>
</program>
<uniform>
<name>baseTexture</name>
<type>sampler-2d</type>
<value type="int">0</value>
</uniform>
<uniform>
<name>visibility</name>
<type>float</type>
<value>
<use>visibility</use>
</value>
</uniform>
<uniform>
<name>avisibility</name>
<type>float</type>
<value>
<use>avisibility</use>
</value>
</uniform>
<uniform>
<name>hazeLayerAltitude</name>
<type>float</type>
<value>
<use>lthickness</use>
</value>
</uniform>
<uniform>
<name>scattering</name>
<type>float</type>
<value>
<use>scattering</use>
</value>
</uniform>
<uniform>
<name>terminator</name>
<type>float</type>
<value>
<use>terminator</use>
</value>
</uniform>
<uniform>
<name>fogType</name>
<type>int</type>
<value>
<use>fogtype</use>
</value>
</uniform>
<uniform>
<name>season</name>
<type>int</type>
<value><use>season</use></value>
</uniform>
</pass>
</technique>
</PropertyList>
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