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CoolVL -Cannot enable Advanced Lighting w/o shadows 
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Joined: 2021-01-13 19:14:05
Posts: 21
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Just updated to the latest version of CoolVL (, but noticed an annoying bug wherein Advanced Lighting Model can't be enabled without having shadows rendering turned on (which murders my FPS!), thus losing the ability to see Material maps without the viewer running at a low FPS.

Log attached.

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2021-01-24 11:35:15

Joined: 2009-03-17 18:42:51
Posts: 4497
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Yep, my fault !
2021-01-24T11:26:06Z WARNING: LLShaderMgr::dumpObjectLog: Vertex shader failed to compile with the following errors:
ERROR: 161:1: error(#143) Undeclared identifier: add_below_cloud

In the installation directory, file app_settings/shaders/ee/class1/deferred/skyV.glsl, line 142, replace "additiveColorBelowCloud" with "add_below_cloud" to read:
    // Haze color below cloud
    vec4 add_below_cloud =
        (blue_horizon * blue_weight * (sunlight + tmpAmbient) + (haze_horizon * haze_weight) * (sunlight * haze_glow + tmpAmbient));

Alternatively, use the Windlight renderer (i.e. un-check "Extended environment shaders" in the "Preferences" floater, "Graphics" tab, "Renderer settings" sub-tab) ...

2021-01-24 12:53:56
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