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<?xml version="1.0" encoding="utf-8" ?>
<scenedata>
    <material>
        <name>base-terracota</name>
        <phong>
            <texture>
                <path>PACKED_0_PACKED_0_terracotta-tint.png</path>
                <a>0</a>
                <b>1</b>
                <c>0</c>
                <uv_set>default</uv_set>
                <exponent>2.2</exponent>
                <tex_coord_generation>
                    <uv />
                </tex_coord_generation>
            </texture>
            <diffuse_albedo>
                <shader>
                    <shader>
                        <![CDATA[def scaling() real :
	1.

def coords ( ) vec2 :
	(	getTexCoords ( 0 ) 
		+ vec2	(  
				noise ( getTexCoords ( 0 ) * 0.5 ) * 0.07 ,
				noise ( getTexCoords ( 0 ) * 0.53 + vec2 ( 15.7 , 23.6 )) * 0.07
				)
	) * scaling()

def maille_xy () vec2 :
	vec2( floor(doti(coords())) ,
		floor ( dotj (  coords() * 0.577350269189 )) * 1.732050807568 )

def closest( vec2 fracp ) vec2:
	if ( lt ( doti ( fracp ) , 0.5 ),
		if ( lt ( dotj ( fracp ) ,  0.866025403784 ),
			if(	lt(	dot ( fracp , vec2( 0.5 , 0.866025403784 )), 0.5 )  ,
				vec2( 0.0 , 0.0 ) , vec2( 0.5 , 0.866025403784 )	),
			if(	lt(	dot ( fracp , vec2( 0.5 , -0.866025403784 )), -1.0 )  ,
				vec2( 0.0 , 1.732050807568 ) , vec2( 0.5 , 0.866025403784 )	)	),
		if ( lt ( dotj ( fracp ) ,  0.866025403784 ),
			if(	lt(	dot ( fracp , vec2( -0.5 ,  0.866025403784 )), 0.0 )  ,
				vec2( 1.0,0.0 ) , vec2( 0.5 , 0.866025403784 )	),
			if(	lt(	dot ( fracp, vec2( -0.5 , -0.866025403784 )), -1.5 )  ,
				vec2( 1.0 , 1.732050807568 ),	vec2( 0.5 , 0.866025403784 )	) 	) 	
		)

def tile_xy() vec2:
	maille_xy() + closest (  coords() - maille_xy() )



def tint( vec2 tile ) vec2 :
	vec2 (
		#tint
		fract ( 
			0.05 * noise ( tile * 7.645169841)
				+ 0.30
			), 

		#burn
		sqrt(clamp ( 
			fbm ( coords() * 0.2 + tile * 13.456698 , 7 )
				 * 0.1 + 0.1
				, 0.05 , 0.99
			))
		
		)

def final ( vec2 tile ) vec3:
	 ( sample2DTextureVec3( 0 , tint( tile  ) ) * 3.0 ) + vec3(0.02)
	
def eval(vec3 pos) vec3 :
	 final ( tile_xy()  )

]]>
</shader>
                </shader>
            </diffuse_albedo>
            <exponent>
                <shader>
                    <shader>
                        <![CDATA[def scaling() real :
	1.

def coords ( ) vec2 :
	(	getTexCoords ( 0 )  ) * scaling()

def eval(vec3 pos) real :
	exp ( fbm ( coords() , 5 ) ) * 100. ]]>
</shader>
                </shader>
            </exponent>
            <bump>
                <shader>
                    <shader>
                        <![CDATA[def scaling() real :
	1.

def coords ( ) vec2 :
	(	getTexCoords ( 0 ) 
		+ vec2	(  
				noise ( getTexCoords ( 0 ) * 0.5 ) * 0.07 ,
				noise ( getTexCoords ( 0 ) * 0.53 + vec2 ( 15.7 , 23.6 )) * 0.07
				)
	) * scaling()

def maille_xy () vec2 :
	vec2( floor(doti(coords())) ,
		floor ( dotj (  coords() * 0.577350269189 )) * 1.732050807568 )

def closest( vec2 fracp ) vec2:
	if ( lt ( doti ( fracp ) , 0.5 ),
		if ( lt ( dotj ( fracp ) ,  0.866025403784 ),
			if(	lt(	dot ( fracp , vec2( 0.5 , 0.866025403784 )), 0.5 )  ,
				vec2( 0.0 , 0.0 ) , vec2( 0.5 , 0.866025403784 )	),
			if(	lt(	dot ( fracp , vec2( 0.5 , -0.866025403784 )), -1.0 )  ,
				vec2( 0.0 , 1.732050807568 ) , vec2( 0.5 , 0.866025403784 )	)	),
		if ( lt ( dotj ( fracp ) ,  0.866025403784 ),
			if(	lt(	dot ( fracp , vec2( -0.5 ,  0.866025403784 )), 0.0 )  ,
				vec2( 1.0,0.0 ) , vec2( 0.5 , 0.866025403784 )	),
			if(	lt(	dot ( fracp, vec2( -0.5 , -0.866025403784 )), -1.5 )  ,
				vec2( 1.0 , 1.732050807568 ),	vec2( 0.5 , 0.866025403784 )	) 	) 	
		)
		

def tile_xy() vec2:
	maille_xy() + closest (  coords() - maille_xy() )

def local_xy() vec2:
	coords() - tile_xy()

def final ( vec2 tile, vec2 loc) real :
		fbm (  loc * 0.63 + tile * 7.6584 , 4 )  * 0.0015
		+ min ( 0. , 0.6 + fbm ( (tile + loc) * 15. , 10  ) ) * 0.003


def eval() real :
	final ( tile_xy(), local_xy() ) / scaling()]]>
</shader>
                </shader>
            </bump>
            <displacement>
                <shader>
                    <shader>
                        <![CDATA[def scaling() real :
	1.

def coords ( ) vec2 :
	(	getTexCoords ( 0 ) 
		+ vec2	(  
				noise ( getTexCoords ( 0 ) * 0.5 ) * 0.07 ,
				noise ( getTexCoords ( 0 ) * 0.53 + vec2 ( 15.7 , 23.6 )) * 0.07
				)
	) * scaling()

def maille_xy () vec2 :
	vec2( floor(doti(coords())) ,
		floor ( dotj (  coords() * 0.577350269189 )) * 1.732050807568 )

def closest( vec2 fracp ) vec2:
	if ( lt ( doti ( fracp ) , 0.5 ),
		if ( lt ( dotj ( fracp ) ,  0.866025403784 ),
			if(	lt(	dot ( fracp , vec2( 0.5 , 0.866025403784 )), 0.5 )  ,
				vec2( 0.0 , 0.0 ) , vec2( 0.5 , 0.866025403784 )	),
			if(	lt(	dot ( fracp , vec2( 0.5 , -0.866025403784 )), -1.0 )  ,
				vec2( 0.0 , 1.732050807568 ) , vec2( 0.5 , 0.866025403784 )	)	),
		if ( lt ( dotj ( fracp ) ,  0.866025403784 ),
			if(	lt(	dot ( fracp , vec2( -0.5 ,  0.866025403784 )), 0.0 )  ,
				vec2( 1.0,0.0 ) , vec2( 0.5 , 0.866025403784 )	),
			if(	lt(	dot ( fracp, vec2( -0.5 , -0.866025403784 )), -1.5 )  ,
				vec2( 1.0 , 1.732050807568 ),	vec2( 0.5 , 0.866025403784 )	) 	) 	
		)
		

def tile_xy() vec2:
	maille_xy() + closest (  coords() - maille_xy() )

def local_xy() vec2:
	coords() - tile_xy()

def random_place(vec2 tile) vec3 :
	vec3	(
		noise ( tile*1.41421356237 ) * 0.005 ,
		noise ( tile*3.14159265358 ) * 0.005,
		noise ( tile*2.64575131106 )  * 0.011
		) 

def placement ( vec2 loc , vec3 place )  vec2 : 
	mat2x2 ( 	cos( dotk ( place) ) , 0. - sin( dotk ( place ) )  ,
			sin ( dotk ( place) ) , cos ( dotk ( place ) ) )
		* loc	+ vec2 ( doti(place), dotj(place) )


def crn ( real a, real b ) real :
	0.5 * ( a + b - sqrt ( (a - b) * (a - b) + 0.001 ) )

def pyra( vec2 xy ) real:
	0.5 + crn(
		min(	dot ( xy , vec2(1.0,0.0) ) , dot ( xy , vec2( -1.0,0.0) ) ) , 
		crn (
			min(	dot ( xy , vec2(0.5, 0.86602540) ) ,
				dot ( xy , vec2( -0.5, -0.86602540)  ) ),
			min(	dot ( xy , vec2(0.5, -0.86602540) ) , 
				dot ( xy , vec2( -0.5, 0.86602540)  ) )
			)
		)

def shape( real x ) real :
	sqrt( x* ( 2. - x ) )

def edge_shakiness( vec2 tile, vec2 loc ) real :
	( noise (  loc * 2.5 + tile * 9.4567453) * 0.015 )

def profile ( vec2 tile, vec2 loc , real p ) real:
	(shape(
		clamp ( ( p - 0.005  + edge_shakiness(tile, loc)  ) *60. 
			, 0. , 1.  )
		) 
		+ 10.0 * min( 0. , 
			p - ( 0.07 * fbm (  loc * 3.14159 + tile * 15.69584 , 4  ) ) )
	)
	 * 0.01
	+ dot ( 
			loc,
			vec2 ( noise ( tile * 8.5864 ) , noise ( tile * 12.58649 ) )
		) * 0.01


def final ( vec2 tile, vec2 loc ) real :
	profile ( tile, loc, pyra(placement( loc , random_place(tile) ) ) )
		


def eval() real :
	final ( tile_xy(), local_xy() ) / scaling()]]>
</shader>
                </shader>
            </displacement>
            <layer>0</layer>
            <fresnel_scale>1</fresnel_scale>
            <ior>1.45</ior>
            <nk_data />
        </phong>
    </material>
    <material>
        <name>base-joint-clean</name>
        <phong>
            <diffuse_albedo>
                <constant>
                    <rgb>
                        <rgb>0.3125 0.2656 0.2148</rgb>
                        <gamma>2.2</gamma>
                    </rgb>
                </constant>
            </diffuse_albedo>
            <exponent>
                <constant>200</constant>
            </exponent>
            <bump>
                <shader>
                    <shader>
                        <![CDATA[def scaling() real :
	1.

def coords ( ) vec2 :
	getTexCoords  (0) * scaling()

def joint_height() real :
	0.005

def eval() real :
	( joint_height() 
	- abs( fbm ( coords() * 10. , 10 ) * 0.016 ))
	/ scaling()]]>
</shader>
                </shader>
            </bump>
            <displacement>
                <shader>
                    <shader>
                        <![CDATA[def scaling() real :
	1.

def joint_height() real :
	0.005

def eval() real :
	joint_height() / scaling()]]>
</shader>
                </shader>
            </displacement>
            <layer>0</layer>
            <fresnel_scale>1</fresnel_scale>
            <ior>1.2</ior>
            <nk_data />
        </phong>
    </material>
    <material>
        <name>terracotta-tiles</name>
        <blend>
            <a_name>base-terracota</a_name>
            <b_name>base-joint-clean</b_name>
            <blend>
                <shader>
                    <shader>
                        <![CDATA[def scaling() real :
	1.

def coords ( ) vec2 :
	(	getTexCoords ( 0 ) 
		+ vec2	(  
				noise ( getTexCoords ( 0 ) * 0.5 ) * 0.07 ,
				noise ( getTexCoords ( 0 ) * 0.53 + vec2 ( 15.7 , 23.6 )) * 0.07
				)
	) * scaling()

def maille_xy () vec2 :
	vec2( floor(doti(coords())) ,
		floor ( dotj (  coords() * 0.577350269189 )) * 1.732050807568 )

def closest( vec2 fracp ) vec2:
	if ( lt ( doti ( fracp ) , 0.5 ),
		if ( lt ( dotj ( fracp ) ,  0.866025403784 ),
			if(	lt(	dot ( fracp , vec2( 0.5 , 0.866025403784 )), 0.5 )  ,
				vec2( 0.0 , 0.0 ) , vec2( 0.5 , 0.866025403784 )	),
			if(	lt(	dot ( fracp , vec2( 0.5 , -0.866025403784 )), -1.0 )  ,
				vec2( 0.0 , 1.732050807568 ) , vec2( 0.5 , 0.866025403784 )	)	),
		if ( lt ( dotj ( fracp ) ,  0.866025403784 ),
			if(	lt(	dot ( fracp , vec2( -0.5 ,  0.866025403784 )), 0.0 )  ,
				vec2( 1.0,0.0 ) , vec2( 0.5 , 0.866025403784 )	),
			if(	lt(	dot ( fracp, vec2( -0.5 , -0.866025403784 )), -1.5 )  ,
				vec2( 1.0 , 1.732050807568 ),	vec2( 0.5 , 0.866025403784 )	) 	) 	
		)
		

def tile_xy() vec2:
	maille_xy() + closest (  coords() - maille_xy() )

def local_xy() vec2:
	coords() - tile_xy()

def random_place(vec2 tile) vec3 :
	vec3	(
		noise ( tile*1.41421356237 ) * 0.005 ,
		noise ( tile*3.14159265358 ) * 0.005,
		noise ( tile*2.64575131106 )  * 0.011
		) 

def placement ( vec2 loc , vec3 place )  vec2 : 
	mat2x2 ( 	cos( dotk ( place) ) , 0. - sin( dotk ( place ) )  ,
			sin ( dotk ( place) ) , cos ( dotk ( place ) ) )
		* loc	+ vec2 ( doti(place), dotj(place) )


def crn ( real a, real b ) real :
	0.5 * ( a + b - sqrt ( (a - b) * (a - b) + 0.001 ) )

def pyra( vec2 xy ) real:
	0.5 + crn(
		min(	dot ( xy , vec2(1.0,0.0) ) , dot ( xy , vec2( -1.0,0.0) ) ) , 
		crn (
			min(	dot ( xy , vec2(0.5, 0.86602540) ) ,
				dot ( xy , vec2( -0.5, -0.86602540)  ) ),
			min(	dot ( xy , vec2(0.5, -0.86602540) ) , 
				dot ( xy , vec2( -0.5, 0.86602540)  ) )
			)
		)

def shape( real x ) real :
	sqrt( x* ( 2. - x ) )

def edge_shakiness( vec2 tile, vec2 loc ) real :
	( noise (  loc * 2.5 + tile * 9.4567453) * 0.015 )

def profile ( vec2 tile, vec2 loc , real p ) real:
	(shape(
		clamp ( ( p - 0.005  + edge_shakiness(tile, loc)  ) * 60. 
			, 0. , 1.  )
		) 
		+ 10.0 * min( 0. , 
			p - ( 0.07 * fbm (  loc * 3.14159 + tile * 15.69584 , 4  ) ) )
	)
	 * 0.01
	+ dot ( 
			loc,
			vec2 ( noise ( tile * 8.5864 ) , noise ( tile * 12.58649 ) )
		) * 0.01

def joint_height() real :
	0.005


def final( vec2 tile, vec2 loc) real :
	if( gt( joint_height() , 
		profile ( tile , loc , pyra(placement( loc , random_place(tile) ) ) )      ) ,
		1.0 , 
		0.0 )

def eval () real:
	final( tile_xy() , local_xy() )]]>
</shader>
                </shader>
            </blend>
            <step_blend>true</step_blend>
        </blend>
    </material>
</scenedata>