diff --git a/irr/include/irrMath.h b/irr/include/irrMath.h
index e11d47360..4e74381a6 100644
--- a/irr/include/irrMath.h
+++ b/irr/include/irrMath.h
@@ -25,7 +25,7 @@ constexpr f64 ROUNDING_ERROR_f64 = 0.00000001;
 #undef PI
 #endif
 //! Constant for PI.
-constexpr f32 PI = M_PI;
+constexpr f32 PI = static_cast<f32>(M_PI);
 
 #ifdef PI64 // make sure we don't collide with a define
 #undef PI64
diff --git a/irr/src/CGLTFMeshFileLoader.cpp b/irr/src/CGLTFMeshFileLoader.cpp
index 32fa4829c..87712595a 100644
--- a/irr/src/CGLTFMeshFileLoader.cpp
+++ b/irr/src/CGLTFMeshFileLoader.cpp
@@ -549,12 +549,10 @@ void SelfType::MeshExtractor::deferAddMesh(
 
 static core::matrix4 loadTransform(const tiniergltf::Node::Matrix &m, SkinnedMesh::SJoint *joint)
 {
-	// Note: Under the hood, this casts these doubles to floats.
-	core::matrix4 mat = convertHandedness(core::matrix4(
-			m[0], m[1], m[2], m[3],
-			m[4], m[5], m[6], m[7],
-			m[8], m[9], m[10], m[11],
-			m[12], m[13], m[14], m[15]));
+	core::matrix4 mat;
+	for (size_t i = 0; i < m.size(); ++i)
+		mat[i] = static_cast<f32>(m[i]);
+	mat = convertHandedness(mat);
 
 	// Decompose the matrix into translation, scale, and rotation.
 	joint->Animatedposition = mat.getTranslation();
diff --git a/irr/src/OpenGL/ExtensionHandler.h b/irr/src/OpenGL/ExtensionHandler.h
index 413ab7f23..2ee3543d5 100644
--- a/irr/src/OpenGL/ExtensionHandler.h
+++ b/irr/src/OpenGL/ExtensionHandler.h
@@ -166,7 +166,7 @@ public:
 	inline void irrGlObjectLabel(GLenum identifier, GLuint name, const char *label)
 	{
 		if (KHRDebugSupported) {
-			u32 len = strlen(label);
+			u32 len = static_cast<u32>(strlen(label));
 			// Since our texture strings can get quite long we also truncate
 			// to a hardcoded limit of 82
 			len = std::min(len, std::min(MaxLabelLength, 82U));
diff --git a/src/client/minimap.cpp b/src/client/minimap.cpp
index e60608688..0d44f9d00 100644
--- a/src/client/minimap.cpp
+++ b/src/client/minimap.cpp
@@ -704,8 +704,8 @@ void Minimap::updateActiveMarkers()
 			continue;
 		}
 
-		m_active_markers.emplace_back(((float)pos.X / (float)MINIMAP_MAX_SX) - 0.5,
-			(1.0 - (float)pos.Z / (float)MINIMAP_MAX_SY) - 0.5);
+		m_active_markers.emplace_back(((float)pos.X / (float)MINIMAP_MAX_SX) - 0.5f,
+			(1.0f - (float)pos.Z / (float)MINIMAP_MAX_SY) - 0.5f);
 	}
 }
 
diff --git a/src/client/shadows/dynamicshadowsrender.cpp b/src/client/shadows/dynamicshadowsrender.cpp
index a7d21d647..70bc2d2cf 100644
--- a/src/client/shadows/dynamicshadowsrender.cpp
+++ b/src/client/shadows/dynamicshadowsrender.cpp
@@ -36,7 +36,7 @@ ShadowRenderer::ShadowRenderer(IrrlichtDevice *device, Client *client) :
 
 	m_shadow_map_max_distance = g_settings->getFloat("shadow_map_max_distance");
 
-	m_shadow_map_texture_size = g_settings->getFloat("shadow_map_texture_size");
+	m_shadow_map_texture_size = g_settings->getU32("shadow_map_texture_size");
 
 	m_shadow_map_texture_32bit = g_settings->getBool("shadow_map_texture_32bit");
 	m_shadow_map_colored = g_settings->getBool("shadow_map_color");
@@ -273,7 +273,7 @@ void ShadowRenderer::updateSMTextures()
 			// Static shader values.
 			for (auto cb : {m_shadow_depth_cb, m_shadow_depth_entity_cb, m_shadow_depth_trans_cb}) {
 				if (cb) {
-					cb->MapRes = (f32)m_shadow_map_texture_size;
+					cb->MapRes = (u32)m_shadow_map_texture_size;
 					cb->MaxFar = (f32)m_shadow_map_max_distance * BS;
 					cb->PerspectiveBiasXY = getPerspectiveBiasXY();
 					cb->PerspectiveBiasZ = getPerspectiveBiasZ();
diff --git a/src/client/shadows/dynamicshadowsrender.h b/src/client/shadows/dynamicshadowsrender.h
index 1c7b6e482..7026e39a9 100644
--- a/src/client/shadows/dynamicshadowsrender.h
+++ b/src/client/shadows/dynamicshadowsrender.h
@@ -124,7 +124,7 @@ private:
 	video::SColor m_shadow_tint;
 	float m_shadow_strength_gamma;
 	float m_shadow_map_max_distance;
-	float m_shadow_map_texture_size;
+	u32 m_shadow_map_texture_size;
 	float m_time_day;
 	int m_shadow_samples;
 	bool m_shadow_map_texture_32bit;
diff --git a/src/script/common/c_content.cpp b/src/script/common/c_content.cpp
index 0e802d9c7..e4d94b3fc 100644
--- a/src/script/common/c_content.cpp
+++ b/src/script/common/c_content.cpp
@@ -104,7 +104,7 @@ void read_item_definition(lua_State* L, int index,
 	} else if (lua_isstring(L, -1)) {
 		video::SColor color;
 		read_color(L, -1, &color);
-		def.wear_bar_params = WearBarParams({{0.0, color}},
+		def.wear_bar_params = WearBarParams({{0.0f, color}},
 				WearBarParams::BLEND_MODE_CONSTANT);
 	}
 
diff --git a/src/unittest/test_utilities.cpp b/src/unittest/test_utilities.cpp
index 1a810c06d..7a07c37fe 100644
--- a/src/unittest/test_utilities.cpp
+++ b/src/unittest/test_utilities.cpp
@@ -320,7 +320,7 @@ void TestUtilities::testUTF8()
 	// try to check that the conversion function does not accidentally keep
 	// its internal state across invocations.
 	// \xC4\x81 is UTF-8 for \u0101
-	utf8_to_wide("\xC4");
+	static_cast<void>(utf8_to_wide("\xC4"));
 	UASSERT(utf8_to_wide("\x81") != L"\u0101");
 }