supertrace plugin / second uv-set plugin

bmap bmap_lightmap = "landscape_lm.dds";

/*
here is the lite-c version of the example script in case anyone would like to run the plugin demo with lite-c.
it should also work with the free lite-c edition. save it as examples_litec.c and also create the file
examples_litec.wdl which contains the line: plugindir = ".";
*/

#include <acknex.h>
#include <default.c>


void ent_loadseconduvset(ENTITY* entity1, ENTITY* entity2);
void ent_exportmesh(ENTITY* entity, STRING* filename);
void ent_importmesh(ENTITY* entity, STRING* filename);


ENTITY* skycube =
{
	type = "skycube+6.tga";
	flags2 = SKY | CUBE | VISIBLE;
	material = mat_sky;
}


void applylightmaps();
ENTITY* tempentity;


//----------------------------------------------------------------------------- mtl_lightmap

BMAP* bmap_lightmap = "landscape_lm.dds";

MATERIAL* mtl_lightmap =
{
	skin1 = bmap_lightmap;
	
	effect=
	"
	texture mtlSkin1;
	texture entSkin1;

	technique t0
	{
		pass p0
		{
			Texture[0]=<mtlSkin1>;
			Texture[1]=<entSkin1>;
			
			// mix light map with dynamic lighting 
			TexCoordIndex[0] = 1;
			ColorArg1[0] = Texture;
			ColorOp[0] = AddSigned;
			ColorArg2[0] = Diffuse;
			
			// apply lighting to texture
			TexCoordIndex[1] = 0;
			ColorArg1[1] = Texture;
			ColorOp[1] = Modulate2x;
			ColorArg2[1] = Current;
		}
	}
	";
}



//----------------------------------------------------------------------------- main
void main()
{
	video_mode = 8;
	
	vec_set(mat_sky.emissive_blue, vector(20,20,20)); // make sky a bit brighter
	
	wait(3);
	level_load("");
	wait(1);
	
	vec_set(sky_color, vector(250, 175, 75));
	
	vec_set(sun_angle, vector(-30, 35, 0));
	sun_light = 10;
	
	vec_set(camera.x, vector(300, 0, 200));
	camera.pan = 180;	
	
	
	
	STRING* meshfilename = "landscape_lm.mesh";
	
	
	/*
	//-------------------- example 1
	
	you = ent_create("landscape.mdl", nullvector, 0); // load model with texture uv-set
	you.material = mtl_lightmap; // assign light map material
	
	tempentity = ent_create("landscape_lm.mdl", nullvector, 0); // load model with light map uv-set
	ent_loadseconduvset(you, tempentity); // generate and assign a new mesh with both uv-sets
	ent_remove(tempentity); // tempentity isn't needed anymore
	
	ent_exportmesh(you, meshfilename); // save mesh with both uv-sets for reuse
	*/
	
	
	//-------------------- example 2
	
	// for very huge models ent_importmesh() probably is faster than ent_loadseconduvset().
	// usually ent_loadseconduvset() should be fast enough though.
	
	if(you) {ent_remove(you);}
	
	you = ent_create("landscape.mdl", nullvector, 0); // load model with texture uv-set
	you.material = mtl_lightmap; // assign light map material
	ent_importmesh(you, meshfilename); // load and assign the previously saved mesh
	
	
	/*
	//-------------------- example 3
	
	// applylightmaps() cycles through all entities in the level and applies a light map
	// if the two "_lm" files exist for the entity.
	
	if(you) {ent_remove(you);}
	
	ent_create("landscape.mdl", nullvector, 0);
	applylightmaps();
	*/
	
	
	while(!key_any) {wait(1);}
	def_moveset(); // default camera movement
}



//----------------------------------------------------------------------------- example 3

var file_exists(STRING* filename)
{
	var filehandle;
	filehandle = file_open_read(filename);
	if(filehandle)
	{
		file_close(filehandle);
		return(1);
	}
	else
	{
		return(0);	
	}
}

STRING* tempstring1 = "#100";
STRING* tempstring2 = "#100";
MATERIAL* tempmaterial;

void applylightmaps()
{
	you = ent_next(0);
	while(you != 0)
	{
		str_for_entfile(tempstring1, you);
		str_trunc(tempstring1, 4);
		str_cpy(tempstring2, tempstring1);
		str_cat(tempstring1, "_lm.mdl");
		str_cat(tempstring2, "_lm.dds");
		
		if(file_exists(tempstring1) && file_exists(tempstring2))
		{		
			you.material = mtl_create(); // they should be removed again when changing the level
			tempmaterial = you.material;
			tempmaterial.effect = mtl_lightmap.effect;
			tempmaterial.skin1 = bmap_create(tempstring2); // they should be removed again when changing the level
			
			tempentity = ent_create(tempstring1, nullvector, 0);
			ent_loadseconduvset(you, tempentity);
			ent_remove(tempentity);
		}
		
		you = ent_next(you);
	}
}