topic Re: How do I fix the flickering facade? in ArcGIS CityEngine Questions

How do I fix the flickering facade?

MicahTaylor — Fri, 30 Sep 2016 21:49:38 GMT

The rule is a simple

Footprint-->
   cleanupGeometry(all,1)
   alignScopeToAxes(y) s('1,0,'1)
   alignScopeToGeometry(yUp, 0, longest)
   Up

Up-->
   extrude(HEIGHT * 0.3048)
   Reporter
   Roof

Roof-->
   case Style == "color override":
       comp(f){side : color(color_override) | top : RoofGetter}
   else:
       comp(f){side : FacadePainter | top : RoofGetter}

FacadePainter-->
   setupProjection(0, scope.xy, 4, 4, 1)
   Paint

Paint-->
   set(material.colormap,facade)
   projectUV(0)

Re: How do I fix the flickering facade?

KennethLindhardt — Mon, 03 Oct 2016 14:03:38 GMT

HI,

it seems that you are creating double shape upon each other .

In your Up rule you are creating the same shapes two times, by creating a Reporter and roof. Delete Reporter…

Re: How do I fix the flickering facade?

MicahTaylor — Tue, 11 Oct 2016 16:54:37 GMT

Thanks! I did not realize reporting something in a Rule would cause an empty shape after I already textured that shape.

Re: How do I fix the flickering facade?

DavidWasserman — Sun, 16 Oct 2016 17:26:17 GMT

Hey Micah,

If you want to keep reporter, I think you can just add NIL to the end of the rule to terminate the leaf.

Along with creating gaps in a split, it helps with creating reporting rules that just need to get information then disappear.

Lot-->
extrude(Height)
comp(f) {top:Roof|side:X.}

Roof-->
roofGable(20)
Flicker
comp(f) {all:Reporter}

Reporter-->
color(1,0,0)
report("Area",geometry.area())

Flicker-->
X.

If you add:
Reporter-->

color(1,0,0)
report("Area",geometry.area())

NIL

The flicker in the images disappears, but the report information remains.

May not help you right now, but thought I would mention it.

David