Latest Contributions by awei

‎05-01-2020

This is really useful for my work. However, it says that the plug-in works for UE4 4.24 but I just tested 4.24.3 doesn't work. Looks like it only works with 4.24.0. This is a history version of UE4 and I'm not sure where to download it...

‎11-27-2017

found the mistake: should change PlantMix(listRange(mix,5,100)) to PlantMix(listRange(mix,5,1000))..I wish there was an option on this forum for me to delete solved comments : )

‎11-27-2017

There is no error message showing. But I noticed it only generated a certain amount of plants (stop after a few loops).

‎11-27-2017

sorry. For the sake of space I didn't put all plants in _getMix. The plant list is actually really long. If you could replace the _getMix to the following: _getMix= "Sugar_Maple;12;20.65;5.55;0.2203;Sugar_Maple;10;20.68;5.72;0.2233;Sugar_Maple;24;27.92;5.88;0.2263;Sugar_Maple;33;32.67;6.05;0.2293;Sugar_Maple;52;41.58;6.21;0.2323;Sugar_Maple;6;14.86;4.91;0.2086;Sugar_Maple;5;13.83;4.75;0.2056;Sugar_Maple;5;13.0;4.58;0.2026;Sugar_Maple;5;12.23;4.42;0.1996;White_Ash;8;22.27;6.21;0.2323;Red_Maple;4;14.2;4.91;0.2086;Sugar_Maple;18;23.32;5.55;0.2203;Sugar_Maple;17;23.61;5.72;0.2233;Sugar_Maple;24;27.56;5.88;0.2263;Sugar_Maple;29;30.82;6.05;0.2293;Sugar_Maple;46;38.97;6.21;0.2323;Sugar_Maple;6;14.32;4.75;0.2056;Sugar_Maple;5;12.27;4.42;0.1996;White_Ash;10;23.22;6.21;0.2323;Red_Maple;5;12.12;4.42;0.1996;White_Pine;5;11.49;4.25;0.1966;Black_Cherry;18;23.53;5.55;0.2203;Black_Cherry;6;12.44;4.42;0.1996;Black_Cherry;5;11.5;4.25;0.1966;Bur_Oak;11;19.69;5.39;0.2173;Bur_Oak;5;12.11;4.42;0.1996;Paper_Birch;7;16.91;5.23;0.2143;Paper_Birch;12;20.06;5.39;0.2173;Quaking_Aspen;6;17.96;5.55;0.2203;Red_Maple;7;18.71;5.55;0.2203;Red_Maple;5;12.12;4.42;0.1996;Red_Maple;5;11.49;4.25;0.1966;Red_Pine;12;21.59;5.72;0.2233;White_Pine;18;23.39;5.55;0.2203;White_Pine;22;26.16;5.72;0.2233;White_Pine;22;26.74;5.88;0.2263;Paper_Birch;5;18.5;5.72;0.2233;Quaking_Aspen;2;17.23;5.72;0.2233;Red_Maple;4;17.96;5.72;0.2233;Red_Maple;5;19.39;5.88;0.2263;Red_Maple;12;23.08;6.05;0.2293;Northen_Red_Oak;30;30.25;5.88;0.2263;Northen_Red_Oak;44;37.57;6.05;0.2293;Northen_Red_Oak;37;35.22;6.21;0.2323;White_Pine;5;17.5;5.55;0.2203;White_Pine;6;18.79;5.72;0.2233;Sugar_Maple;6;14.76;4.91;0.2086;Sugar_Maple;5;12.21;4.42;0.1996;Paper_Birch;7;19.15;5.72;0.2233;Quaking_Aspen;3;17.37;5.72;0.2233;Red_Maple;6;18.81;5.72;0.2233;Red_Maple;7;20.26;5.88;0.2263;Red_Maple;11;22.92;6.05;0.2293;Northen_Red_Oak;27;29.17;5.88;0.2263;Northen_Red_Oak;38;34.9;6.05;0.2293;Northen_Red_Oak;30;31.96;6.21;0.2323;White_Pine;11;20.28;5.55;0.2203;White_Pine;13;22.1;5.72;0.2233;Balsam_Fir;4;18.66;5.88;0.2263;Balsam_Fir;3;19.33;6.05;0.2293;Balsam_Fir;3;19.98;6.21;0.2323;Balsam_Fir;3;20.63;6.38;0.2353;Balsam_Fir;3;21.57;6.54;0.2383;Black_Ash;4;18.15;5.72;0.2233;Black_Ash;4;18.84;5.88;0.2263;Paper_Birch;4;20.33;6.21;0.2323;Red_Maple;5;18.23;5.72;0.2233;Red_Maple;5;19.29;5.88;0.2263;Red_Maple;4;20.3;6.21;0.2323;Red_Maple;4;21.31;6.38;0.2353;Sugar_Maple;7;19.52;5.72;0.2233;Sugar_Maple;8;20.51;5.88;0.2263;Sugar_Maple;5;11.5;4.25;0.1966;White_Cedar;11;20.91;5.72;0.2233;White_Cedar;12;22.52;5.88;0.2263;White_Cedar;15;24.6;6.05;0.2293;White_Cedar;9;22.49;6.21;0.2323;White_Pine;10;20.54;5.72;0.2233;White_Pine;10;23.91;6.38;0.2353;White_Pine;6;13.26;4.58;0.2026;White_Spruce;4;20.52;6.21;0.2323;White_Spruce;4;23.47;6.87;0.2443;Black_Cherry;7;14.36;4.75;0.2056;Black_Cherry;6;13.23;4.58;0.2026;Northen_Red_Oak;7;13.76;4.58;0.2026;Bur_Oak;5;12.11;4.42;0.1996;White_Oak;5;11.49;4.25;0.1966;Paper_Birch;5;18.5;5.72;0.2233;Quaking_Aspen;2;17.23;5.72;0.2233;Red_Maple;4;17.97;5.72;0.2233;Red_Maple;5;19.4;5.88;0.2263;Red_Maple;12;23.13;6.05;0.2293;Northen_Red_Oak;30;30.39;5.88;0.2263;Northen_Red_Oak;45;37.85;6.05;0.2293;Northen_Red_Oak;38;35.42;6.21;0.2323;White_Pine;5;17.51;5.55;0.2203;White_Pine;6;18.8;5.72;0.2233;Black_Cherry;5;12.22;4.42;0.1996;Paper_Birch;7;19.15;5.72;0.2233;Quaking_Aspen;3;17.37;5.72;0.2233;Red_Maple;6;18.8;5.72;0.2233;Red_Maple;7;20.25;5.88;0.2263;Red_Maple;11;22.9;6.05;0.2293;Northen_Red_Oak;27;28.88;5.88;0.2263;Northen_Red_Oak;38;34.65;6.05;0.2293;Northen_Red_Oak;29;31.69;6.21;0.2323;White_Pine;11;20.24;5.55;0.2203;White_Pine;13;22.05;5.72;0.2233;Sugar_Maple;6;14.33;4.75;0.2056;Balsam_Fir;4;18.66;5.88;0.2263;Balsam_Fir;3;19.33;6.05;0.2293;Balsam_Fir;3;19.98;6.21;0.2323;Balsam_Fir;3;20.63;6.38;0.2353;Balsam_Fir;3;21.57;6.54;0.2383;Black_Ash;4;18.16;5.72;0.2233;Black_Ash;4;18.85;5.88;0.2263;Paper_Birch;4;20.33;6.21;0.2323;Red_Maple;5;18.24;5.72;0.2233;Red_Maple;5;19.3;5.88;0.2263;Red_Maple;4;20.32;6.21;0.2323;Red_Maple;4;21.33;6.38;0.2353;Sugar_Maple;8;19.66;5.72;0.2233;Sugar_Maple;8;20.67;5.88;0.2263;White_Cedar;11;21.11;5.72;0.2233;White_Cedar;13;22.74;5.88;0.2263;White_Cedar;16;24.85;6.05;0.2293;White_Cedar;9;22.66;6.21;0.2323;White_Pine;10;20.73;5.72;0.2233;White_Pine;11;24.13;6.38;0.2353;White_Spruce;4;20.52;6.21;0.2323;White_Spruce;4;23.47;6.87;0.2443;Basswood;6;14.26;4.75;0.2056;White_Oak;5;12.12;4.42;0.1996;" Many thanks, ---Jade

‎11-26-2017

My generation just stops after a certain number of loops....I think it isn't related to the model size. Could you look at my code? /** * File: viff.cga * Created: 7 Nov 2017 20:05:46 GMT */ version "2017.0" _getMix = "Sugar_Maple;12;20.652872772912;5.554958664000001;0.2203;Sugar_Maple;10;20.683350410712;5.719611624;0.2233;Sugar_Maple;24;27.924276874728;5.884264584;0.2263;Sugar_Maple;33;32.670674562;6.048917544;0.2293;Sugar_Maple;52;41.582897113440005;6.213570504;0.2323;Sugar_Maple;6;14.862108588144002;4.91281212;0.2086;Sugar_Maple;5;13.832673407496001;4.74815916;0.2056;Sugar_Maple;5;12.996153544344;4.5835062;0.2026;Sugar_Maple;5;12.226485523104001;4.418853240000001;0.1996;White_Ash;8;22.268444504424004;6.213570504;0.2323;Red_Maple;4;14.197410260952001;4.91281212;0.2086;Sugar_Maple;18;23.319306299064003;5.554958664000001;0.2203;Sugar_Maple;17;23.611461152904;5.719611624;0.2233;" @StartRule PlantMix --> Ground_Cover.GroundCover PlantMix(_getMix) PlantMix(mix) --> case mix != "": print (listFirst(mix)) print (float(listItem(mix,1))) print (float(listItem(mix,2))) print (float(listItem(mix,3))) DistributePlant(listFirst(mix),float(listItem(mix,1)),float(listItem(mix,2)),float(listItem(mix,3)),float(listItem(mix,4))) cleanupGeometry(all, 0) reduceGeometry(0.8) PlantMix(listRange(mix,5,100)) # recursive call until list is empty else: NIL DistributePlant(plant,number,height,radius,contagion) --> 20%:scatter(surface, number, gaussian,center,contagion*5000){ TREE(plant,height,radius) } 20%:scatter(surface, number, gaussian,left,contagion*5000){ TREE(plant,height,radius) } 20%:scatter(surface, number, gaussian,right,contagion*5000){ TREE(plant,height,radius) } 20%:scatter(surface, number, gaussian,front,contagion*5000){ TREE(plant,height,radius) } else:scatter(surface, number, gaussian,back,contagion*5000){ TREE(plant,height,radius) } NIL TREE(plant,height,radius) --> case plant == "Quaking_Aspen": 33%: alignScopeToAxes(y) r(0,rand(0,360),0) setPivot(yzx,0) center(xz) s(radius,radius,height) i("assets/Plants/" + plant +"/"+"SH10_1.obj" ) Tree. 33%: alignScopeToAxes(y) r(0,rand(0,360),0) setPivot(yzx,0) center(xz) s(radius,radius,height) i("assets/Plants/" + plant +"/"+"SH10_2.obj" ) Tree. 34%: alignScopeToAxes(y) r(0,rand(0,360),0) setPivot(yzx,0) center(xz) s(radius,radius,height) i("assets/Plants/" + plant +"/"+"SH10_3.obj" ) Tree. else: NIL else: alignScopeToAxes(y) s(radius,height,radius) r(0,rand(0,360),0) i("assets/Plants/" + plant +"/"+plant +"_Model_0.obj" ) center(xz) Tree.

‎11-22-2017

I just stopped using the models that are too big, but it still stops the loop after a few loops, I have no idea why....

‎11-22-2017

so I was able to use model that I downloaded online. However, they're too heavy. Each model is about 10-20 MB, and I have to generate hundreds of these. When I apply the rule, there's no error at all, but I notice that CE just generated a tiny portion of trees. The LumenRT's plant library is really light, I wonder how I could reduce my model size.. I tried to use cleanupGeometry commands but seems doesn't help. Can I do this quickly in CE? Or I have to manually import/export in other 3d modeling software

‎11-22-2017

If other people have similar question, xfrog and Turbo squid are good places to find plant models!

‎11-21-2017

On that one screenshot there was no alpha map, but I did generate alpha map. Just try again, with alpha map, the leaves still don't have transparency..

‎11-20-2017

Plant loader with LumenRT is a great resource for visualizing plants, but for even more extreme scientific usage, I would like to include more species to visualize. Seems there's few free 3d tree model online. The approach I'm trying now is to export 3d models from another 3d modeling software I have, but because of different texture formatting with LumenRT library, the leaves texture is not showing up correct (fig.2). Seems to require fairly amount of photoshop. Does anyone know how to adjust the texture map export setting (fig.2) or incorporate customized tree models to the LumenRT library? fig.1 fig2

‎11-10-2017

to follow up this question, scatter function does help. however, since clustering is a very localized effect, the plant distributor and plant mixer do not help much. The problem is I need thousands of plant clusters, each cluster has a specified number of plants, but the scatter function is global control. The solution I'm thinking now is to first scatter thousands of points, and then for each point, scatter the specified number of plants around it. But the scatter function doesn't take point object...do you have a better solution? --Jade

‎11-09-2017

Thank you! I worked this out

‎11-08-2017

I'm looking to populate my scene by runtime generating points and assign them with tree objects. A sample tree data looks like this: Here is my first try. HEIGHT=57.17676 Init--> scatter(surface, 20, gaussian) { TREE } scatter(surface, 10, gaussian) { TREE } scatter(surface, 10, gaussian) { TREE } TREE --> alignScopeToAxes(y) s(0,HEIGHT,0) i(getAssetPath) center(xz) Tree. getAssetPath = ( "assets/Plants/QuakingAspen/QuakingAspen_Model_0.obj" ) So as a first step, I would want to have a set of lists (species, height, number of trees etc.), so that my TREE function and scatter function can loop through all of them, unlike above, where I manually type in each entry. Because I have thousands of entries like this. And the ultimate goal is to directly read the csv file. I went through 3D vegetation with lumenRT rules, https://www.arcgis.com/home/item.html?id=0fd3bbe496c14844968011332f9f39b7, and seems they just typed in all the species name, height, etc to the cga files, so I have no idea how to do this. Any help with the following two steps is much appreciated! @Chris Wilkins Brooks Patrick, Gert Van Maren, Thomas Fuchs, Cheryl Lau

‎08-12-2017

Hi, I tried to import kmz model to my scene, but it appears to be way too dark for the texture to be shown (see image attached). I tried to increase scene lighting but it doesn't help. What should I do?

‎06-05-2017

@Chris Wilkins

Online Status	Offline
Date Last Visited	‎11-11-2020 02:25 AM

My Ideas

Latest Contributions by awei

Re: Vitruvio - CityEngine Plugin for Unreal Engine 4

Re: Add more plants to LumenRT plant library

Re: Add more plants to LumenRT plant library

Re: Add more plants to LumenRT plant library

Re: Add more plants to LumenRT plant library

Re: Add more plants to LumenRT plant library

Re: Add more plants to LumenRT plant library

Re: Add more plants to LumenRT plant library

Re: Add more plants to LumenRT plant library

Add more plants to LumenRT plant library

Re: CityEngine specify spatial contagion

Re: read from csv file and loop through list

read from csv file and loop through list

Imported model too dark?

Re: CityEngine specify spatial contagion

CityEngine export to Lumenrt

Re: Streets appear to be white after applying rule...