diff --git a/drivers/gles2/shader_compiler_gles2.cpp b/drivers/gles2/shader_compiler_gles2.cpp
index 7db08c37ebf..60bbecfecd0 100644
--- a/drivers/gles2/shader_compiler_gles2.cpp
+++ b/drivers/gles2/shader_compiler_gles2.cpp
@@ -911,7 +911,7 @@ ShaderCompilerGLES2::ShaderCompilerGLES2() {
 	actions[VS::SHADER_CANVAS_ITEM].renames["INSTANCE_CUSTOM"] = "instance_custom";
 
 	actions[VS::SHADER_CANVAS_ITEM].renames["COLOR"] = "color";
-	actions[VS::SHADER_CANVAS_ITEM].renames["MODULATE"] = "final_modulate";
+	actions[VS::SHADER_CANVAS_ITEM].renames["MODULATE"] = "final_modulate_alias";
 	actions[VS::SHADER_CANVAS_ITEM].renames["NORMAL"] = "normal";
 	actions[VS::SHADER_CANVAS_ITEM].renames["NORMALMAP"] = "normal_map";
 	actions[VS::SHADER_CANVAS_ITEM].renames["NORMALMAP_DEPTH"] = "normal_depth";
diff --git a/drivers/gles2/shaders/canvas.glsl b/drivers/gles2/shaders/canvas.glsl
index 3cf5ca841f9..2420e62021c 100644
--- a/drivers/gles2/shaders/canvas.glsl
+++ b/drivers/gles2/shaders/canvas.glsl
@@ -31,6 +31,17 @@ attribute vec2 uv_attrib; // attrib:4
 attribute highp vec4 modulate_attrib; // attrib:5
 #endif
 
+// Usually, final_modulate is passed as a uniform. However during batching
+// If larger fvfs are used, final_modulate is passed as an attribute.
+// we need to read from the attribute in custom vertex shader
+// rather than the uniform. We do this by specifying final_modulate_alias
+// in shaders rather than final_modulate directly.
+#ifdef USE_ATTRIB_MODULATE
+#define final_modulate_alias modulate_attrib
+#else
+#define final_modulate_alias final_modulate
+#endif
+
 #ifdef USE_ATTRIB_LARGE_VERTEX
 // shared with skeleton attributes, not used in batched shader
 attribute highp vec2 translate_attrib; // attrib:6
@@ -469,6 +480,18 @@ void main() {
 		normal_used = true;
 #endif
 
+		// If larger fvfs are used, final_modulate is passed as an attribute.
+		// we need to read from this in custom fragment shaders or applying in the post step,
+		// rather than using final_modulate directly.
+#if defined(final_modulate_alias)
+#undef final_modulate_alias
+#endif
+#ifdef USE_ATTRIB_MODULATE
+#define final_modulate_alias modulate_interp
+#else
+#define final_modulate_alias final_modulate
+#endif
+
 		/* clang-format off */
 
 FRAGMENT_SHADER_CODE
@@ -481,11 +504,7 @@ FRAGMENT_SHADER_CODE
 	}
 
 #if !defined(MODULATE_USED)
-#ifdef USE_ATTRIB_MODULATE
-	color *= modulate_interp;
-#else
-	color *= final_modulate;
-#endif
+	color *= final_modulate_alias;
 #endif
 
 #ifdef USE_LIGHTING
diff --git a/drivers/gles3/shader_compiler_gles3.cpp b/drivers/gles3/shader_compiler_gles3.cpp
index a994096a334..b6e4e4c8c28 100644
--- a/drivers/gles3/shader_compiler_gles3.cpp
+++ b/drivers/gles3/shader_compiler_gles3.cpp
@@ -891,7 +891,7 @@ ShaderCompilerGLES3::ShaderCompilerGLES3() {
 	actions[VS::SHADER_CANVAS_ITEM].renames["INSTANCE_CUSTOM"] = "instance_custom";
 
 	actions[VS::SHADER_CANVAS_ITEM].renames["COLOR"] = "color";
-	actions[VS::SHADER_CANVAS_ITEM].renames["MODULATE"] = "final_modulate";
+	actions[VS::SHADER_CANVAS_ITEM].renames["MODULATE"] = "final_modulate_alias";
 	actions[VS::SHADER_CANVAS_ITEM].renames["NORMAL"] = "normal";
 	actions[VS::SHADER_CANVAS_ITEM].renames["NORMALMAP"] = "normal_map";
 	actions[VS::SHADER_CANVAS_ITEM].renames["NORMALMAP_DEPTH"] = "normal_depth";
diff --git a/drivers/gles3/shaders/canvas.glsl b/drivers/gles3/shaders/canvas.glsl
index 620968cd143..b4e65dfb0a4 100644
--- a/drivers/gles3/shaders/canvas.glsl
+++ b/drivers/gles3/shaders/canvas.glsl
@@ -14,6 +14,17 @@ layout(location = 3) in vec4 color_attrib;
 layout(location = 5) in vec4 modulate_attrib; // attrib:5
 #endif
 
+// Usually, final_modulate is passed as a uniform. However during batching
+// If larger fvfs are used, final_modulate is passed as an attribute.
+// we need to read from the attribute in custom vertex shader
+// rather than the uniform. We do this by specifying final_modulate_alias
+// in shaders rather than final_modulate directly.
+#ifdef USE_ATTRIB_MODULATE
+#define final_modulate_alias modulate_attrib
+#else
+#define final_modulate_alias final_modulate
+#endif
+
 #ifdef USE_ATTRIB_LARGE_VERTEX
 // shared with skeleton attributes, not used in batched shader
 layout(location = 6) in vec2 translate_attrib; // attrib:6
@@ -567,6 +578,18 @@ void main() {
 		normal_used = true;
 #endif
 
+		// If larger fvfs are used, final_modulate is passed as an attribute.
+		// we need to read from this in custom fragment shaders or applying in the post step,
+		// rather than using final_modulate directly.
+#if defined(final_modulate_alias)
+#undef final_modulate_alias
+#endif
+#ifdef USE_ATTRIB_MODULATE
+#define final_modulate_alias modulate_interp
+#else
+#define final_modulate_alias final_modulate
+#endif
+
 		/* clang-format off */
 
 FRAGMENT_SHADER_CODE
@@ -582,12 +605,8 @@ FRAGMENT_SHADER_CODE
 	color = vec4(vec3(enc32), 1.0);
 #endif
 
-#ifdef USE_ATTRIB_MODULATE
-	color *= modulate_interp;
-#else
 #if !defined(MODULATE_USED)
-	color *= final_modulate;
-#endif
+	color *= final_modulate_alias;
 #endif
 
 #ifdef USE_LIGHTING