Added a better error message when generation fails. increased message queue size (to avoid freeze when opening many .ptex files at the same time)

addons/material_maker/engine/gen_shader.gd

@@ -126,7 +126,7 @@ func replace_input(string : String, context, input : String, type : String, src
 			if src_code.has(type):
 				src_code.string = src_code[type]
 			else:
-				src_code.string = "*error*"
+				src_code.string = "*error missing "+type+"*\n"+JSON.print(src_code)
 		# Add global definitions
 		if src_code.has("globals"):
 			for d in src_code.globals:

project.godot

@@ -221,6 +221,10 @@ toggle_fullscreen={
 
 file_logging/log_path=""
 
+[memory]
+
+limits/message_queue/max_size_kb=16384
+
 [rendering]
 
 environment/default_environment="res://default_env.tres"