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====== ArmA 1 Grass Tutorial ======

[[https://www.pmctactical.org/forum/viewforum.php?f=42|ArmA 1 Forum]], [[:arma|ArmA 1 Home]], [[arma:config|ArmA 1 Config]], [[arma:tools|ArmA 1 Tools]], [[arma:file_formats|ArmA 1 File Formats]], [[arma:missions|ArmA 1 Missions]], [[arma:modeling|ArmA 1 3D Modeling]], [[arma:terrain|ArmA 1 Terrain]], [[arma:texturing|ArmA 1 Texturing]], [[arma:scripting|ArmA 1 Scripting]]

**ArmA 1** aka Armed Assault (ArmA)

**Grass Tutorial** by Linker Split

Create a little 3x3m grass block, something like this:

{{ https://pmc.editing.wiki/images/grass_tutorial1.jpg }}

The model must only have some res LODs and Geometry LOD empty, with property names
<code>
damage no
shadow hybrid
</code>


====== Config.cpp ======

Here I'll post an example of what should be to have your own clutters:
<code cpp>
class DefaultLighting;
class DefaultLighting_CA : DefaultLighting {};

//+++++++++++++++++++++++++++\\
///the definition of my own ground textures\\\
//+++++++++++++++++++++++++++\\
class CfgSurfaces
{
	class Default {};
	class water {};
	class citysand : Default
	{
		access = ReadOnly;
		files = "citysand_*";
		rough = 0.01;
		dust = 0.8;
		soundEnviron = "road";
		character = "citysandClutter";
        };
	class desertsand : Default
	{
		access = ReadOnly;
		files = "desertsand_*";
		rough = 0.03;
		dust = 0.9;
		soundEnviron = "sand";
		character = "desertsandClutter";
	};
	class grassdry : Default
	{
		access = ReadOnly;
		files = "grassdry_*";
		rough = 0.01;
		dust = 0.09;
		soundEnviron = "drygrass";
		character = "grassdryClutter";
	};
};

//+++++++++++++++++++++++++++\\
///////the definition of my own clutters\\\\\\\\\
//+++++++++++++++++++++++++++\\
class CfgSurfaceCharacters
{
	class citysandClutter
	{
		probability[] = {0.0005000,0.001,0.004};
		names[] = {"grassdryLong","cityrocksmall","Cityrockbig"};
	};
	class desertsandClutter
	{
		probability[] = {0.010015,0.005001,0.003001,0.000670,0.00050,0.0002};
		names[] = {"grassdryShort","Desertrockssmall", "Desertrocksbig",
			"Desertrockbig", "Desertrockbig2", "Desertrockbig3"};
	};
	class grassdryClutter
	{
		probability[] = {0.0500,0.0100};
		names[] = {"grassgreenLong","grassgreenShort"};
	};
};

//+++++++++++++++++++++++++++\\
/////////--island simple definition part--\\\\\\\\\
//+++++++++++++++++++++++++++\\
class CfgWorlds
{
	class DefaultClutter
	{
		scaleMin = 0.9;
		scaleMax = 1.4;
	};
	class DefaultWorld;
	class BHD_mogadishu : DefaultWorld
	{
		access = 3;
		cutscenes[] = {"DesertIntro1"};
		description = "-Mogadishu-";
		icon = "";
		worldName = "\BHD_mogadishu\BHD_mogadishu.wrp";
		pictureMap = "";
		pictureShot = "";
		plateFormat = "ML$ - #####";
		plateLetters = ABCDEGHIKLMNOPRSTVXZ;
		longitude = +20; // positive is east
		latitude = +30; // positive is south
		landGrid = 20;
		class Grid //OFP style Aa00 - JJ99
		{
			//colorGrid[]={0,0,1,1};
			//colorGridMap[]={0,0,1,1};
			offsetX=0;
			offsetY=0;
			class Zoom1
			{
				zoomMax = 0.5;
				format = "XY";
				formatX = "Aa";
				formatY = "00";
				stepX = 200;
				stepY = 200;
			};
			class Zoom2
			{
				zoomMax = 1e030;
				format = "XY";
				formatX = "A";
				formatY = "0";
				stepX = 2000;
				stepY = 2000;
			};
		};
		startTime = 8:30;
		startDate = 07/06/2007;
		startWeather = 0.1;
		startFog = 0.0;
		forecastWeather = 0.3;
		forecastFog = 0.0;
		seagullPos[] = {1272.84, 150.0, 14035};
		centerPosition[] = {2500, 2500, 300};
		ilsPosition[] = {2545, 3000};
		ilsDirection[] = {0, 0.08, 1};
		ilsTaxiIn[] = {
				2495, 2725, 2495, 2850, 2508, 2860, 2508,
				3000, 2520, 3010, 2545, 3000
			};
		ilsTaxiOff[] = {2545, 2445, 2520, 2425, 2495, 2445, 2495, 2725};
		drawTaxiway = 0;
		class ReplaceObjects {};
		class Sounds
		{
			sounds[] = {};
		};
		class Animation
		{
			vehicles[] = {};
		};
		class Lighting : DefaultLighting {};
		clutterGrid = 1.11;
		clutterDist = 55;
		noDetailDist = 40;
		fullDetailDist = 5;
		minTreesInForestSquare = 3;
		minRocksInRockSquare = 4;

//+++++++++++++++++++++++++++\\
/////the real definition of my own clutters\\\\\\
//+++++++++++++++++++++++++++\\
class clutter
{
	class GrassGeneral: DefaultClutter    //main BI grass clutter
	{
		model = "ca\plants\clutter_grass_general.p3d";
		affectedByWind = 0;
		swLighting = 1;
		scaleMin = 0.75;
		scaleMax = 1.0;
	};
	class grassdryLong: GrassGeneral   //my first definition of grass clutters,
	// see the first part, and find the corrispondence of these classes
	{
		model="BHD_m\vege\grassdry.p3d";
		affectedByWind = 0.01;
		scaleMin = 1.0;
		scaleMax = 1.50;
	};
	class grassdryShort: GrassGeneral    //same goes for this class
	{
		model="BHD_m\vege\grassdry.p3d";
		affectedByWind = 0.001;
		scaleMin = 0.70;
		scaleMax = 1.0;
	};
	class grassgreenLong: GrassGeneral     //same goes for this class
	{
		model="BHD_m\vege\grassgreen.p3d";
		affectedByWind = 0.5;
		scaleMin = 1.0;
		scaleMax = 1.50;
	};
	class grassgreenShort: GrassGeneral      //same goes for this class
	{
		model="BHD_m\vege\grassgreen.p3d";
		affectedByWind = 0.05;
		scaleMin = 0.70;
		scaleMax = 1.00;
	};
	class Desertrockssmall: GrassGeneral     //main BI configuration for rocks
	{
		model = "ca\rocks\clutter_stone_small.p3d";
		affectedByWind = 0;
		scaleMin = 0.2;
		scaleMax = 0.4;
	};
	class Desertrockssbig: GrassGeneral     //main BI configuration for rocks
	{
		model = "ca\rocks\stone3_clutter.p3d";
		affectedByWind = 0;
		scaleMin = 0.2;
		scaleMax = 0.4;
	};
	class Desertrockbig: GrassGeneral     //main BI configuration for rocks
	{
		model = "ca\rocks\stone4_invert.p3d";
		affectedByWind = 0;
		scaleMin = 0.4;
		scaleMax = 0.8;
	};
	class Desertrockbig2: GrassGeneral     //main BI configuration for rocks
	{
		model = "ca\rocks\stone3a.p3d";
		affectedByWind = 0;
		scaleMin = 0.2;
		scaleMax = 0.4;
	};
	class Desertrockbig3: GrassGeneral     //main BI configuration for rocks
	{
		model = "ca\rocks\stone4.p3d";
		affectedByWind = 0;
		scaleMin = 0.2;
		scaleMax = 0.4;
	};
	class Cityrocksmall: GrassGeneral     //main BI configuration for rocks
	{
		model = "ca\rocks\clutter_stone_small.p3d";
		affectedByWind = 0;
		scaleMin = 0.1;
		scaleMax = 0.26;
	};
	class Cityrockbig: GrassGeneral     //main BI configuration for rocks
	{
		model = "ca\rocks\stone3_clutter.p3d";
		affectedByWind = 0;
		scaleMin = 0.1;
		scaleMax = 0.3;
	};
};
};
};

class CfgWorldList
{
	class BHD_Mogadishu {};
};
</code>

Ok, let's take a look at our Mod config for Mogadishu in descending order:\\
The first part has been dedicated to define my own ground textures, with my own names (city_dust.paa, grassdry.paa and so on) then I defined the class CfgSurfaceCharacters (where you can also change the probability that indicates the amount of objects placed) to add in a second part of the config my own clutters.
So, take a look at the Clutter class part of the config:\\
There you will define your own models to be placed randomly all over the island.

====== Notes ======

Hope it will be a good explanation, for any problems, [[https://www.pmctactical.org/forum/privmsg.php?mode=post&u=2318|send Linker Split a private message]].