diff --git a/binaries/data/mods/mod/shaders/effects/terrain_shadow_caster.xml b/binaries/data/mods/mod/shaders/effects/terrain_shadow_caster.xml
new file mode 100644
index 0000000000..6f00b3d098
--- /dev/null
+++ b/binaries/data/mods/mod/shaders/effects/terrain_shadow_caster.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<effect>
+	<technique>
+		<require shaders="glsl"/>
+		<require shaders="spirv"/>
+		<pass shader="dummy">
+			<cull mode="FRONT"/>
+			<color mask_red="FALSE" mask_green="FALSE" mask_blue="FALSE" mask_alpha="FALSE"/>
+		</pass>
+	</technique>
+</effect>
diff --git a/binaries/data/mods/mod/shaders/effects/terrain_silhouette_occluder.xml b/binaries/data/mods/mod/shaders/effects/terrain_silhouette_occluder.xml
new file mode 100644
index 0000000000..0ea95bf7b9
--- /dev/null
+++ b/binaries/data/mods/mod/shaders/effects/terrain_silhouette_occluder.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<effect>
+	<technique>
+		<require shaders="glsl"/>
+		<require shaders="spirv"/>
+		<pass shader="dummy">
+			<!--
+				To prevent units displaying silhouettes when parts of their model
+				protrude into the ground, only occlude with the back faces of the
+				terrain (so silhouettes will still display when behind hills).
+			-->
+			<cull mode="FRONT"/>
+			<color mask_red="FALSE" mask_green="FALSE" mask_blue="FALSE" mask_alpha="FALSE"/>
+		</pass>
+	</technique>
+</effect>
diff --git a/source/ps/CStrInternStatic.h b/source/ps/CStrInternStatic.h
index 99d007f790..d9e8e5300e 100644
--- a/source/ps/CStrInternStatic.h
+++ b/source/ps/CStrInternStatic.h
@@ -171,6 +171,8 @@ X(sunDir)
 X(terrain_base)
 X(terrain_blend)
 X(terrain_decal)
+X(terrain_shadow_caster)
+X(terrain_silhouette_occluder)
 X(terrain_solid)
 X(tex)
 X(texSize)
diff --git a/source/renderer/SceneRenderer.cpp b/source/renderer/SceneRenderer.cpp
index 4d440e39f0..38e2f04394 100644
--- a/source/renderer/SceneRenderer.cpp
+++ b/source/renderer/SceneRenderer.cpp
@@ -317,7 +317,7 @@ void CSceneRenderer::RenderShadowMap(
 		const int cullGroup = CULL_SHADOWS_CASCADE_0 + cascade;
 		{
 			PROFILE("render patches");
-			m->terrainRenderer.RenderPatches(deviceCommandContext, cullGroup, shadowsContext);
+			m->terrainRenderer.RenderPatches(deviceCommandContext, cullGroup, {});
 		}
 
 		{
@@ -739,7 +739,7 @@ void CSceneRenderer::RenderSilhouettes(
 
 	{
 		PROFILE("render patches");
-		m->terrainRenderer.RenderPatches(deviceCommandContext, CULL_SILHOUETTE_OCCLUDER, contextOccluder);
+		m->terrainRenderer.RenderPatches(deviceCommandContext, CULL_SILHOUETTE_OCCLUDER, {});
 	}
 
 	{
diff --git a/source/renderer/TerrainRenderer.cpp b/source/renderer/TerrainRenderer.cpp
index 9b545fd131..da1c8cd4a9 100644
--- a/source/renderer/TerrainRenderer.cpp
+++ b/source/renderer/TerrainRenderer.cpp
@@ -93,6 +93,8 @@ struct TerrainRendererInternals
 	/// Fancy water shader
 	CShaderTechniquePtr fancyWaterTech;
 
+	CShaderTechniquePtr shadowCasterTech, silhouettteOccluderTech;
+
 	CShaderTechniquePtr shaderTechniqueSolid, shaderTechniqueSolidDepthTest;
 
 	Renderer::Backend::IVertexInputLayout* overlayVertexInputLayout = nullptr;
@@ -150,6 +152,10 @@ void TerrainRenderer::Initialize()
 	m->waterSurfaceVertexInputLayout = CPatchRData::GetWaterSurfaceVertexInputLayout(false);
 	m->waterSurfaceWithDataVertexInputLayout = CPatchRData::GetWaterSurfaceVertexInputLayout(true);
 	m->waterShoreVertexInputLayout = CPatchRData::GetWaterShoreVertexInputLayout();
+
+	CShaderManager& shaderManager{g_Renderer.GetShaderManager()};
+	m->shadowCasterTech = shaderManager.LoadEffect(str_terrain_shadow_caster);
+	m->silhouettteOccluderTech = shaderManager.LoadEffect(str_terrain_silhouette_occluder);
 }
 
 void TerrainRenderer::SetSimulation(CSimulation2* simulation)
@@ -372,7 +378,24 @@ void TerrainRenderer::RenderPatches(
 
 	GPU_SCOPED_LABEL(deviceCommandContext, "Render terrain patches");
 
-	CShaderTechniquePtr solidTech = g_Renderer.GetShaderManager().LoadEffect(str_terrain_solid, defines);
+	CShaderTechniquePtr solidTech;
+	switch (cullGroup)
+	{
+	case CSceneRenderer::CULL_SHADOWS_CASCADE_0: [[fallthrough]];
+	case CSceneRenderer::CULL_SHADOWS_CASCADE_1: [[fallthrough]];
+	case CSceneRenderer::CULL_SHADOWS_CASCADE_2: [[fallthrough]];
+	case CSceneRenderer::CULL_SHADOWS_CASCADE_3:
+		ENSURE(defines.GetMap().empty());
+		solidTech = m->shadowCasterTech;
+		break;
+	case CSceneRenderer::CULL_SILHOUETTE_OCCLUDER:
+		ENSURE(defines.GetMap().empty());
+		solidTech = m->silhouettteOccluderTech;
+		break;
+	default:
+		solidTech = g_Renderer.GetShaderManager().LoadEffect(str_terrain_solid, defines);
+		break;
+	}
 	deviceCommandContext->SetGraphicsPipelineState(
 		solidTech->GetGraphicsPipelineState());
 	deviceCommandContext->BeginPass();