From 7e14aea49e4f38ae286d37de0435f20645f1d2ec Mon Sep 17 00:00:00 2001
From: Hartmut Seichter <hartmut@technotecture.com>
Date: Wed, 2 Dec 2020 23:31:06 +0100
Subject: [PATCH] start bisecting

---
 share/doc/pixwerx.minder         | 156 +++++++++++++++----------------
 src/scripts/demos/simple_000.lua |   4 +-
 src/system/src/window.cpp        |   5 +-
 src/visual/src/pipeline.cpp      |   8 +-
 4 files changed, 86 insertions(+), 87 deletions(-)

diff --git a/share/doc/pixwerx.minder b/share/doc/pixwerx.minder
index 59dd216..0211064 100644
--- a/share/doc/pixwerx.minder
+++ b/share/doc/pixwerx.minder
@@ -1,45 +1,45 @@
 <?xml version="1.0"?>
 <minder version="1.11.3">
-  <theme name="solarized_light" label="Solarized Light" index="7"/>
+  <theme name="solarized_light" label="Solarized Light" index="-1"/>
   <styles>
-    <style level="0" isset="false" branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="rounded" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="10" nodepadding="10" nodefont="Sans 11" nodemarkup="true" connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
-    <style level="1" isset="false" branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true" connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
-    <style level="2" isset="false" branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true" connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
-    <style level="3" isset="false" branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true" connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
-    <style level="4" isset="false" branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true" connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
-    <style level="5" isset="false" branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true" connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
-    <style level="6" isset="false" branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true" connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
-    <style level="7" isset="false" branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true" connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
-    <style level="8" isset="false" branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true" connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
-    <style level="9" isset="false" branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true" connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
-    <style level="10" isset="false" branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true" connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
+    <style level="0" isset="true" branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="rounded" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="10" nodepadding="10" nodefont="Sans 11" nodemarkup="true" connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
+    <style level="1" isset="true" branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true" connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
+    <style level="2" isset="true" branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true" connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
+    <style level="3" isset="true" branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true" connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
+    <style level="4" isset="true" branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true" connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
+    <style level="5" isset="true" branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true" connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
+    <style level="6" isset="true" branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true" connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
+    <style level="7" isset="true" branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true" connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
+    <style level="8" isset="true" branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true" connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
+    <style level="9" isset="true" branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true" connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
+    <style level="10" isset="true" branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true" connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
   </styles>
   <drawarea x="-559.8056640625" y="-576.1885986328125" scale="1"/>
   <images/>
   <nodes>
     <node id="0" posx="807.9554443359375" posy="552.6099853515625" width="86" height="46" side="left" fold="false" treesize="552" layout="Horizontal" group="false">
-      <style branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
+      <style branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
       <nodename posx="821.9554443359375" posy="566.6099853515625" maxwidth="200">
         <text data="pixwerx"/>
       </nodename>
       <nodenote></nodenote>
       <nodes>
-        <node id="27" posx="616.9554443359375" posy="322.6099853515625" width="91" height="46" side="left" fold="false" treesize="46" color="#6c71c4" colorroot="false" layout="Horizontal" group="false">
-          <style branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
+        <node id="1" posx="616.9554443359375" posy="322.6099853515625" width="91" height="46" side="left" fold="false" treesize="46" color="#6c71c4" colorroot="false" layout="Horizontal" group="false">
+          <style branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
           <nodename posx="630.9554443359375" posy="336.6099853515625" maxwidth="200">
             <text data="scripting"/>
           </nodename>
           <nodenote></nodenote>
           <nodes>
-            <node id="28" posx="447.9554443359375" posy="322.6099853515625" width="69" height="46" side="left" fold="false" treesize="46" color="#6c71c4" colorroot="false" layout="Horizontal" group="false">
-              <style branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
+            <node id="2" posx="447.9554443359375" posy="322.6099853515625" width="69" height="46" side="left" fold="false" treesize="46" color="#6c71c4" colorroot="false" layout="Horizontal" group="false">
+              <style branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
               <nodename posx="461.9554443359375" posy="336.6099853515625" maxwidth="200">
                 <text data="script"/>
               </nodename>
               <nodenote></nodenote>
               <nodes>
-                <node id="29" posx="297.9554443359375" posy="322.6099853515625" width="50" height="46" side="left" fold="false" treesize="46" color="#6c71c4" colorroot="false" layout="Horizontal" group="false">
-                  <style branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
+                <node id="3" posx="297.9554443359375" posy="322.6099853515625" width="50" height="46" side="left" fold="false" treesize="46" color="#6c71c4" colorroot="false" layout="Horizontal" group="false">
+                  <style branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
                   <nodename posx="311.9554443359375" posy="336.6099853515625" maxwidth="200">
                     <text data="lua"/>
                   </nodename>
@@ -49,43 +49,43 @@
             </node>
           </nodes>
         </node>
-        <node id="5" posx="625.9554443359375" posy="460.6099853515625" width="82" height="46" side="left" fold="false" treesize="230" color="#cb4b16" colorroot="false" layout="Horizontal" group="false">
-          <style branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
+        <node id="4" posx="625.9554443359375" posy="460.6099853515625" width="82" height="46" side="left" fold="false" treesize="230" color="#cb4b16" colorroot="false" layout="Horizontal" group="false">
+          <style branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
           <nodename posx="639.9554443359375" posy="474.6099853515625" maxwidth="200">
             <text data="system"/>
           </nodename>
           <nodenote></nodenote>
           <nodes>
-            <node id="6" posx="450.9554443359375" posy="368.6099853515625" width="75" height="46" side="left" fold="false" treesize="46" color="#cb4b16" colorroot="false" layout="Horizontal" group="false">
-              <style branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
+            <node id="5" posx="450.9554443359375" posy="368.6099853515625" width="75" height="46" side="left" fold="false" treesize="46" color="#cb4b16" colorroot="false" layout="Horizontal" group="false">
+              <style branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
               <nodename posx="464.9554443359375" posy="382.6099853515625" maxwidth="200">
                 <text data="library"/>
               </nodename>
               <nodenote></nodenote>
             </node>
-            <node id="7" posx="443.9554443359375" posy="414.6099853515625" width="82" height="46" side="left" fold="false" treesize="46" color="#cb4b16" colorroot="false" layout="Horizontal" group="false">
-              <style branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
+            <node id="6" posx="443.9554443359375" posy="414.6099853515625" width="82" height="46" side="left" fold="false" treesize="46" color="#cb4b16" colorroot="false" layout="Horizontal" group="false">
+              <style branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
               <nodename posx="457.9554443359375" posy="428.6099853515625" maxwidth="200">
                 <text data="system"/>
               </nodename>
               <nodenote></nodenote>
             </node>
-            <node id="8" posx="441.9554443359375" posy="460.6099853515625" width="84" height="46" side="left" fold="false" treesize="46" color="#cb4b16" colorroot="false" layout="Horizontal" group="false">
-              <style branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
+            <node id="7" posx="441.9554443359375" posy="460.6099853515625" width="84" height="46" side="left" fold="false" treesize="46" color="#cb4b16" colorroot="false" layout="Horizontal" group="false">
+              <style branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
               <nodename posx="455.9554443359375" posy="474.6099853515625" maxwidth="200">
                 <text data="sockets"/>
               </nodename>
               <nodenote></nodenote>
             </node>
-            <node id="9" posx="442.9554443359375" posy="506.6099853515625" width="83" height="46" side="left" fold="false" treesize="46" color="#cb4b16" colorroot="false" layout="Horizontal" group="false">
-              <style branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
+            <node id="8" posx="442.9554443359375" posy="506.6099853515625" width="83" height="46" side="left" fold="false" treesize="46" color="#cb4b16" colorroot="false" layout="Horizontal" group="false">
+              <style branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
               <nodename posx="456.9554443359375" posy="520.6099853515625" maxwidth="200">
                 <text data="window"/>
               </nodename>
               <nodenote></nodenote>
               <nodes>
-                <node id="10" posx="258.9554443359375" posy="506.6099853515625" width="84" height="46" side="left" fold="false" treesize="46" color="#cb4b16" colorroot="false" layout="Horizontal" group="false">
-                  <style branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
+                <node id="9" posx="258.9554443359375" posy="506.6099853515625" width="84" height="46" side="left" fold="false" treesize="46" color="#cb4b16" colorroot="false" layout="Horizontal" group="false">
+                  <style branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
                   <nodename posx="272.9554443359375" posy="520.6099853515625" maxwidth="200">
                     <text data="context"/>
                   </nodename>
@@ -93,8 +93,8 @@
                 </node>
               </nodes>
             </node>
-            <node id="11" posx="445.9554443359375" posy="552.6099853515625" width="80" height="46" side="left" fold="false" treesize="46" color="#cb4b16" colorroot="false" layout="Horizontal" group="false">
-              <style branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
+            <node id="10" posx="445.9554443359375" posy="552.6099853515625" width="80" height="46" side="left" fold="false" treesize="46" color="#cb4b16" colorroot="false" layout="Horizontal" group="false">
+              <style branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
               <nodename posx="459.9554443359375" posy="566.6099853515625" maxwidth="200">
                 <text data="display"/>
               </nodename>
@@ -102,29 +102,29 @@
             </node>
           </nodes>
         </node>
-        <node id="33" posx="666.9554443359375" posy="644.6099853515625" width="41" height="46" side="left" fold="false" treesize="138" color="#2aa198" colorroot="false" layout="Horizontal" group="false">
-          <style branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
+        <node id="11" posx="666.9554443359375" posy="644.6099853515625" width="41" height="46" side="left" fold="false" treesize="138" color="#2aa198" colorroot="false" layout="Horizontal" group="false">
+          <style branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
           <nodename posx="680.9554443359375" posy="658.6099853515625" maxwidth="200">
             <text data="io"/>
           </nodename>
           <nodenote></nodenote>
           <nodes>
-            <node id="34" posx="485.9554443359375" posy="598.6099853515625" width="81" height="46" side="left" fold="false" treesize="46" color="#2aa198" colorroot="false" layout="Horizontal" group="false">
-              <style branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
+            <node id="12" posx="485.9554443359375" posy="598.6099853515625" width="81" height="46" side="left" fold="false" treesize="46" color="#2aa198" colorroot="false" layout="Horizontal" group="false">
+              <style branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
               <nodename posx="499.9554443359375" posy="612.6099853515625" maxwidth="200">
                 <text data="meshio"/>
               </nodename>
               <nodenote></nodenote>
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               <nodenote></nodenote>
               <nodes>
-                <node id="14" posx="1319.9554443359375" posy="805.6099853515625" width="87" height="46" side="right" fold="false" treesize="46" color="#b58900" colorroot="false" layout="Horizontal" group="false">
-                  <style branchmargin="100" linktype="straight" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
+                <node id="36" posx="1319.9554443359375" posy="805.6099853515625" width="87" height="46" side="right" fold="false" treesize="46" color="#b58900" colorroot="false" layout="Horizontal" group="false">
+                  <style branchmargin="100" linktype="curved" linkwidth="4" linkarrow="false" linkdash="solid" nodeborder="underlined" nodewidth="200" nodeborderwidth="4" nodefill="false" nodemargin="8" nodepadding="6" nodefont="Sans 11" nodemarkup="true"/>
                   <nodename posx="1333.9554443359375" posy="819.6099853515625" maxwidth="200">
                     <text data="controls"/>
                   </nodename>
@@ -307,7 +307,7 @@
   </nodes>
   <groups/>
   <connections>
-    <connection from_id="10" to_id="16" drag_x="984.47973632812489" drag_y="678.38024902343659">
+    <connection from_id="9" to_id="32" drag_x="655.56787109375" drag_y="1080.8472900390625">
       <style connectiondash="dotted" connectionlwidth="2" connectionarrow="fromto" connectionpadding="3" connectionfont="Sans 10" connectiontwidth="100"/>
       <title>Direction?</title>
       <note></note>
diff --git a/src/scripts/demos/simple_000.lua b/src/scripts/demos/simple_000.lua
index a5eec50..54c5c87 100644
--- a/src/scripts/demos/simple_000.lua
+++ b/src/scripts/demos/simple_000.lua
@@ -8,7 +8,7 @@ pw.script:load_all()
 print("hello pixwerx!")
 
 local w = pw.window.new()
---w.visible = false
+w.visible = false
 
 -- set title
 w.title = "pixwerx 0.1"
@@ -31,7 +31,7 @@ end
 -- setup a lua callback function as callback
 w.on_update = function(self)
     pl:draw()
-	-- print("test on update",w.position.x,w.position.y,pw.time.now)
+--	print("test on update",w.position.x,w.position.y,pw.time.now)
 end
 
 -- show all displays
diff --git a/src/system/src/window.cpp b/src/system/src/window.cpp
index 7cf78d0..d00a895 100644
--- a/src/system/src/window.cpp
+++ b/src/system/src/window.cpp
@@ -146,7 +146,6 @@ struct window::impl {
         if (!glfwInit())
         {
             debug::e() << "Initalization error";
-
         }
 
         int glfw_major, glfx_minor,glfw_rev;
@@ -159,8 +158,8 @@ struct window::impl {
         update_display_list();
 
         // request specific version 3.3
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
         glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
         glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
 
diff --git a/src/visual/src/pipeline.cpp b/src/visual/src/pipeline.cpp
index 487c1ef..255effe 100644
--- a/src/visual/src/pipeline.cpp
+++ b/src/visual/src/pipeline.cpp
@@ -54,15 +54,15 @@ struct triangle_renderer
 		const float s = 1.0f;
 
 
-#if 0
-		mesh::vertex3array_t vertices = {
+#if 1
+        geometry::vertex3array_t vertices = {
 			{ 0.0f,  0.5f,  z_val} // 0
 			,{ 0.5f,  0.0f,  z_val} // 1
 			,{-0.5f,  0.0f,  z_val} // 2
 		};
 
 		// actual indices
-		mesh::indexarray_t indices = { 0, 1, 2};
+        geometry::indexarray_t indices = { 0, 1, 2};
 
 #else
 
@@ -298,7 +298,7 @@ void pipeline::impl::draw()
 //        glClearColor(1.0,0,0,1);
 //        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
-	//	glViewport(0,0,800,600);
+//        glViewport(0,0,800,600);
 
 	//
 	// draw pass