diff --git a/core/string/ustring.cpp b/core/string/ustring.cpp
index e1588d3752f..57f98fb8650 100644
--- a/core/string/ustring.cpp
+++ b/core/string/ustring.cpp
@@ -304,7 +304,7 @@ Error String::parse_url(String &r_scheme, String &r_host, int &r_port, String &r
 	return OK;
 }
 
-void String::copy_from(const StrRange<char> &p_cstr) {
+void String::parse_latin1(const StrRange<char> &p_cstr) {
 	if (p_cstr.len == 0) {
 		resize(0);
 		return;
@@ -323,7 +323,7 @@ void String::copy_from(const StrRange<char> &p_cstr) {
 	*dst = 0;
 }
 
-void String::copy_from(const StrRange<char32_t> &p_cstr) {
+void String::parse_utf32(const StrRange<char32_t> &p_cstr) {
 	if (p_cstr.len == 0) {
 		resize(0);
 		return;
@@ -332,7 +332,7 @@ void String::copy_from(const StrRange<char32_t> &p_cstr) {
 	copy_from_unchecked(p_cstr.c_str, p_cstr.len);
 }
 
-void String::copy_from(const char32_t &p_char) {
+void String::parse_utf32(const char32_t &p_char) {
 	if (p_char == 0) {
 		print_unicode_error("NUL character", true);
 		return;
diff --git a/core/string/ustring.h b/core/string/ustring.h
index 594e1d362b1..4df5b276a0f 100644
--- a/core/string/ustring.h
+++ b/core/string/ustring.h
@@ -269,51 +269,51 @@ class String {
 	static const char32_t _replacement_char;
 
 	// Known-length copy.
-	void copy_from(const StrRange<char> &p_cstr);
-	void copy_from(const StrRange<char32_t> &p_cstr);
-	void copy_from(const char32_t &p_char);
+	void parse_latin1(const StrRange<char> &p_cstr);
+	void parse_utf32(const StrRange<char32_t> &p_cstr);
+	void parse_utf32(const char32_t &p_char);
 	void copy_from_unchecked(const char32_t *p_char, int p_length);
 
 	// NULL-terminated c string copy - automatically parse the string to find the length.
-	void copy_from(const char *p_cstr) {
-		copy_from(StrRange<char>::from_c_str(p_cstr));
+	void parse_latin1(const char *p_cstr) {
+		parse_latin1(StrRange<char>::from_c_str(p_cstr));
 	}
-	void copy_from(const char *p_cstr, int p_clip_to) {
-		copy_from(StrRange(p_cstr, p_cstr ? _strlen_clipped(p_cstr, p_clip_to) : 0));
+	void parse_latin1(const char *p_cstr, int p_clip_to) {
+		parse_latin1(StrRange(p_cstr, p_cstr ? _strlen_clipped(p_cstr, p_clip_to) : 0));
 	}
-	void copy_from(const char32_t *p_cstr) {
-		copy_from(StrRange<char32_t>::from_c_str(p_cstr));
+	void parse_utf32(const char32_t *p_cstr) {
+		parse_utf32(StrRange<char32_t>::from_c_str(p_cstr));
 	}
-	void copy_from(const char32_t *p_cstr, int p_clip_to) {
-		copy_from(StrRange(p_cstr, p_cstr ? _strlen_clipped(p_cstr, p_clip_to) : 0));
+	void parse_utf32(const char32_t *p_cstr, int p_clip_to) {
+		parse_utf32(StrRange(p_cstr, p_cstr ? _strlen_clipped(p_cstr, p_clip_to) : 0));
 	}
 
 	// wchar_t copy_from depends on the platform.
-	void copy_from(const StrRange<wchar_t> &p_cstr) {
+	void parse_wstring(const StrRange<wchar_t> &p_cstr) {
 #ifdef WINDOWS_ENABLED
 		// wchar_t is 16-bit, parse as UTF-16
 		parse_utf16((const char16_t *)p_cstr.c_str, p_cstr.len);
 #else
 		// wchar_t is 32-bit, copy directly
-		copy_from((StrRange<char32_t> &)p_cstr);
+		parse_utf32((StrRange<char32_t> &)p_cstr);
 #endif
 	}
-	void copy_from(const wchar_t *p_cstr) {
+	void parse_wstring(const wchar_t *p_cstr) {
 #ifdef WINDOWS_ENABLED
 		// wchar_t is 16-bit, parse as UTF-16
 		parse_utf16((const char16_t *)p_cstr);
 #else
 		// wchar_t is 32-bit, copy directly
-		copy_from((const char32_t *)p_cstr);
+		parse_utf32((const char32_t *)p_cstr);
 #endif
 	}
-	void copy_from(const wchar_t *p_cstr, int p_clip_to) {
+	void parse_wstring(const wchar_t *p_cstr, int p_clip_to) {
 #ifdef WINDOWS_ENABLED
 		// wchar_t is 16-bit, parse as UTF-16
 		parse_utf16((const char16_t *)p_cstr, p_clip_to);
 #else
 		// wchar_t is 32-bit, copy directly
-		copy_from((const char32_t *)p_cstr, p_clip_to);
+		parse_utf32((const char32_t *)p_cstr, p_clip_to);
 #endif
 	}
 
@@ -615,33 +615,33 @@ public:
 
 	// Constructors for NULL terminated C strings.
 	String(const char *p_cstr) {
-		copy_from(p_cstr);
+		parse_latin1(p_cstr);
 	}
 	String(const wchar_t *p_cstr) {
-		copy_from(p_cstr);
+		parse_wstring(p_cstr);
 	}
 	String(const char32_t *p_cstr) {
-		copy_from(p_cstr);
+		parse_utf32(p_cstr);
 	}
 	String(const char *p_cstr, int p_clip_to_len) {
-		copy_from(p_cstr, p_clip_to_len);
+		parse_latin1(p_cstr, p_clip_to_len);
 	}
 	String(const wchar_t *p_cstr, int p_clip_to_len) {
-		copy_from(p_cstr, p_clip_to_len);
+		parse_wstring(p_cstr, p_clip_to_len);
 	}
 	String(const char32_t *p_cstr, int p_clip_to_len) {
-		copy_from(p_cstr, p_clip_to_len);
+		parse_utf32(p_cstr, p_clip_to_len);
 	}
 
 	// Copy assignment for NULL terminated C strings.
 	void operator=(const char *p_cstr) {
-		copy_from(p_cstr);
+		parse_latin1(p_cstr);
 	}
 	void operator=(const wchar_t *p_cstr) {
-		copy_from(p_cstr);
+		parse_wstring(p_cstr);
 	}
 	void operator=(const char32_t *p_cstr) {
-		copy_from(p_cstr);
+		parse_utf32(p_cstr);
 	}
 
 	explicit operator StrRange<char32_t>() const { return StrRange(get_data(), length()); }
diff --git a/drivers/gles3/effects/feed_effects.h b/drivers/gles3/effects/feed_effects.h
index 5856a3e04b6..7943a447ad3 100644
--- a/drivers/gles3/effects/feed_effects.h
+++ b/drivers/gles3/effects/feed_effects.h
@@ -33,6 +33,7 @@
 
 #ifdef GLES3_ENABLED
 
+#include "drivers/gles3/shader_gles3.h"
 #include "drivers/gles3/shaders/feed.glsl.gen.h"
 
 namespace GLES3 {