diff --git a/ref/vk/tools/rendertest.py b/ref/vk/tools/rendertest.py
index ccc01385..4564483b 100755
--- a/ref/vk/tools/rendertest.py
+++ b/ref/vk/tools/rendertest.py
@@ -1,5 +1,13 @@
 #!/usr/bin/env python3
 
+saves = [
+	'brush2_01',
+	'brush_01',
+	'brush_02',
+	'c0a0d_emissive',
+	'light_01',
+]
+
 displays = {
 	'full': '',
 	'basecolor': 'basecolor',
@@ -13,29 +21,32 @@ displays = {
 	'indirect_diff': 'indirect_diff',
 }
 
-saves = [
-	'brush2_01',
-	'brush_01',
-	'brush_02',
-	'c0a0d_emissive',
-	'light_01',
-]
+import argparse
 
-header = '''m_ignore 1
+parser = argparse.ArgumentParser(description='Generate scripts and makefiles for rendertest')
+parser.add_argument('--script', '-s', type=argparse.FileType('w'), help='Console script for generating images')
+args = parser.parse_args()
+
+def make_script(file):
+	header = '''m_ignore 1
 scr_conspeed 100000
 con_notifytime 0
 hud_draw 0
 r_speeds 0
 rt_debug_fixed_random_seed 31337
-developer 0'''
+developer 0
+'''
 
-print(header)
+	file.write(header)
 
-for save in saves:
-	screenshot_base = 'rendertest/'
-	print('')
-	print(f'load rendertest_{save}; wait 20')
-	for name, display in displays.items():
-		print(f'rt_debug_display_only "{display}"; screenshot {screenshot_base}{save}_{name}.png; wait 1')
+	for save in saves:
+		screenshot_base = 'rendertest/'
+		file.write(f'\nload rendertest_{save}; wait 20')
+		for name, display in displays.items():
+			file.write(f'rt_debug_display_only "{display}"; screenshot {screenshot_base}{save}_{name}.png; wait 1\n')
 
-print('quit')
+	file.write('\nquit\n')
+
+if args.script:
+	print(f'Generating script {args.script.name}')
+	make_script(args.script)