added camera implementation and plenty of other rendering related stuff - splitted out the initialization of the render context

src/scripts/demos/simple_000.lua

@@ -24,12 +24,12 @@ print("v1 ",v1.x,v1.y,v1.z)
 local q = pw.quaternion.new()
 print("q",q.x,q.y,q.z,q.w)
 
-qi = q:inverse()
+qi = q.inverse
 print("q.inverse",qi.x,qi.y,qi.z,qi.w)
 
 local q2 = pw.quaternion.new(0,0,0,1)
 
-qm = pw.quaternion.lerp(q,qi)
+qm = pw.quaternion.lerp(q,qi,0.5)
 print("q.m",qm.x,qm.y,qm.z,qm.w)
 
 
@@ -71,6 +71,8 @@ local w = pw.window.new()
 
 w.title = "pixwerx 1.0"
 
+w:set_size(1280,768)
+
 while w:update()
 do
     -- print("update")