From 4fbe948be78f83a557cbd70911697211b2c71e7d Mon Sep 17 00:00:00 2001
From: vladislavbelov <vladislavbelov@wildfiregames.com>
Date: Sun, 12 Mar 2023 12:00:21 +0000
Subject: [PATCH] Fixes grass with normal and specular textures.

Tested By: Langbart, marder, wowgetoffyourcellphone
Differential Revision: https://code.wildfiregames.com/D4968
This was SVN commit r27575.
---
 .../public/art/materials/basic_trans_wind_grain_norm_spec.xml   | 2 ++
 binaries/data/mods/public/shaders/glsl/model_common.fs          | 2 +-
 binaries/data/mods/public/shaders/glsl/terrain_common.fs        | 2 +-
 3 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/binaries/data/mods/public/art/materials/basic_trans_wind_grain_norm_spec.xml b/binaries/data/mods/public/art/materials/basic_trans_wind_grain_norm_spec.xml
index 52069f8f89..cd4e988718 100644
--- a/binaries/data/mods/public/art/materials/basic_trans_wind_grain_norm_spec.xml
+++ b/binaries/data/mods/public/art/materials/basic_trans_wind_grain_norm_spec.xml
@@ -10,4 +10,6 @@
 	<required_texture name="specTex" define="USE_SPECULAR_MAP"/>
 	<shader effect="model_transparent"/>
 	<uniform name="windData" value="6.0 6.0"/>
+	<!-- TODO: use a separate material for translucent models. -->
+	<uniform name="effectSettings" value="0.0 50.0 0.0075"/>
 </material>
diff --git a/binaries/data/mods/public/shaders/glsl/model_common.fs b/binaries/data/mods/public/shaders/glsl/model_common.fs
index bfbcf8ae5c..91e6f8d893 100644
--- a/binaries/data/mods/public/shaders/glsl/model_common.fs
+++ b/binaries/data/mods/public/shaders/glsl/model_common.fs
@@ -104,7 +104,7 @@ void main()
       specCol = specularColor;
       specPow = specularPower;
     #endif
-    specular.rgb = sunColor * specCol * pow(max(0.0, dot(normalize(normal), v_half)), specPow);
+    specular.rgb = sunColor * specCol * pow(max(0.001, dot(normalize(normal), v_half)), specPow);
   #endif
 
   #if (USE_INSTANCING || USE_GPU_SKINNING) && USE_AO
diff --git a/binaries/data/mods/public/shaders/glsl/terrain_common.fs b/binaries/data/mods/public/shaders/glsl/terrain_common.fs
index e2cab3b40a..f274c9404d 100644
--- a/binaries/data/mods/public/shaders/glsl/terrain_common.fs
+++ b/binaries/data/mods/public/shaders/glsl/terrain_common.fs
@@ -114,7 +114,7 @@ void main()
     specCol = s.rgb;
     specular.a = s.a;
     specPow = effectSettings.y;
-    specular.rgb = sunColor * specCol * pow(max(0.0, dot(normalize(normal), v_half)), specPow);
+    specular.rgb = sunColor * specCol * pow(max(0.001, dot(normalize(normal), v_half)), specPow);
   #endif
 
   vec3 color = (texdiffuse * sundiffuse + specular.rgb) * getShadowOnLandscape() + texdiffuse * ambient;