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@com.POV-Ray 3 Macintosh Template file @com.Version: 3.1 Rev 1 @com. **** NOTE: Look for "FIXME" string for incomplete sections **** @com.Last Modified: @com. [esp] September 27, 1995 @com. [anr] December 28, 1995 @com. [esp] March 18, 1996 @com. [Matt Kruse] April 9, 1996 <mkruse@demian.sau.edu> a few tweaks @com. [esp] 961021 fixed irid and additional includes @com. [anr] Januari 29, 1997 @com. [anr] June 2, 1997 fixed #switch @com. [esp] July 11, 1998 Updated media & interior for 3.1 @com. [esp] Aug. 29, 1998 Updated examples for 3.1 version and syntax @com. [esp] Sep. 2, 1998 Fixed references to interior and caustics, @com. and added new material{} and #defined keywords. @com. [esp] Sep. 25, 1998 Many fixes courtesy Mark Donovan! @com.------------------------------------------------------------ @com. @com.============================================================ @mt1.Headers @com.============================================================ @com. @com.------------------------------ @mt2.Scene File Header // Persistence of Vision Ray Tracer Scene Description File // File: .pov // Vers: 3.1 // Desc: // Date: // Auth: @com.------------------------------ @mt2.Standard includes // ==== Standard POV-Ray Includes ==== #include "colors.inc" // Standard Color definitions #include "textures.inc" // Standard Texture definitions @com.------------------------------ @mt2.Additional includes // ==== Additional Includes ==== // Don't have all of the following included at once, it'll cost memory and time // to parse! #include "CHARS.INC" // A complete library of character objects, by Ken Maeno #include "CONSTS.INC" // Various constants and alias definitions #include "FINISH.INC" // Some basic finishes #include "GLASS.INC" // Glass textures #include "GOLDS.INC" // Gold textures #include "METALS.INC" // Metallic pigments, finishes, and textures #include "RAD_DEF.INC" // Some common radiosity settings #include "SHAPES.INC" // Standard objects from POV-Ray's earlier days #include "SHAPES2.INC" // Useful, but seldom used shapes #include "SHAPESQ.INC" // Pre-defined quartic shapes #include "SKIES.INC" // Ready defined sky spheres #include "STARS.INC" // Some star fields #include "STDCAM.INC" // Standard cameras #include "STONES.INC" // Binding include-file for STONES1 and STONES2 #include "STONES1.INC" // Great stone-textures created by Mike Miller #include "STONES2.INC" // More, done by Dan Farmer and Paul Novak #include "WOODMAPS.INC" // Basic wooden colormaps #include "WOODS.INC" // Great wooden textures created by Dan Farmer and Paul Novak @com.============================================================ @mt1.Statements @com.============================================================ @com. @com.------------------------------ @mt2.background // Set a color of the background (sky) background { color red 0.1 green 0.3 blue 0.8 } @com.------------------------------ @mt2.Typical camera camera { location <0.0 , 2.0 ,-5.0> look_at <0.0 , 0.0 , 0.0> } @mt2.Camera definition // set viewer's position in the scene camera { // (camera types) // perspective (default) | orthographic | fisheye | // ultra_wide_angle | omnimax | panoramic | cylinder 1 location <0.0, 1.0, -6.0> // position of camera <X Y Z> direction 2.0*z // which way are we looking <X Y Z> & zoom // sky y // rarely used up y // which way is +up <X Y Z> right 4/3*x // which way is +right <X Y Z> and aspect ratio look_at <0.0, 0.0, 0.0> // point center of view at this point <X Y Z> // angle FLOAT // overrides "direction" with specific angle // normal { ripples 0.2 } // perturb the camera lens with a pattern // (focal blur extras) // aperture 0.2 // 0...N (bigger is narrower depth of field) // blur_samples 4 // # of rays per pixel // focal_point <VECTOR> // x,y,z point that is in focus } @com.------------------------------ @mt2.Ambient fog fog { fog_type 1 distance 100 color SkyBlue } @mt2.Ground fog fog { fog_type 2 distance 10 color rgb 0.6 // gray fog_offset 0.1 fog_alt 0.2 turbulence 0.8 } @mt2.Fog definition //FIXME // set global atmospheric fog effect in the scene. // at the fog distance, there will be 63% visibility fog { fog_type 1 // 1=constant, 2=ground_fog distance 10 color Gray // turbulence <TURBULENCE> // turb_depth TURB_DEPTH // omega OMEGA // lambda LAMBDA // octaves OCTAVES // fog_offset FOG_OFFSET // fog_alt FOG_ALT } @com.------------------------------ @mt2.Rainbow // create a rainbow arc rainbow { angle 25 // degrees width 4 // degrees distance 1.0e7 direction <0,-0.5,1> jitter 0.01 arc_angle 180 // degrees falloff_angle 60 // degrees // up <UP> colour_map { [0.000 colour colour red 1.0 green 0.5 blue 1.0 filter 1.0] [0.100 colour colour red 1.0 green 0.5 blue 1.0 filter 0.8] [0.214 colour colour red 0.5 green 0.5 blue 1.0 filter 0.8] [0.328 colour colour red 0.2 green 0.2 blue 1.0 filter 0.8] [0.442 colour colour red 0.2 green 1.0 blue 1.0 filter 0.8] [0.556 colour colour red 0.2 green 1.0 blue 0.2 filter 0.8] [0.670 colour colour red 1.0 green 1.0 blue 0.2 filter 0.8] [0.784 colour colour red 1.0 green 0.5 blue 0.2 filter 0.8] [0.900 colour colour red 1.0 green 0.2 blue 0.2 filter 0.8] } } @com.------------------------------ @mt2.Sky Sphere // Create an infinite sphere around scene and allow any texture on it sky_sphere { pigment { gradient y color_map { [0.0 color rgb <0.7,0.7,1.0>] [1.0 color blue 0.5] } } } @com.------------------------------ @mt2.adc global_settings { adc_bailout 20 } @com.------------------------------ @mt2.assumed gamma global_settings { assumed_gamma 1.0 } @com.------------------------------ @mt2.HFGray16 global_settings { hf_gray_16 } @com.------------------------------ @mt2.irid_wavelength global_settings { irid_wavelength <0.25, 0.18, 14> } @com.------------------------------ @mt2.max_trace_level global_settings { max_trace_level 20 } @com.------------------------------ @mt2.max_intersections global_settings { max_intersections 200 } @com.------------------------------ @mt2.number_of_waves global_settings { number_of_waves 10 } @com.------------------------------ @mt2.ambient light // set an overall brightness/ambient light level in the scene global_settings { ambient_light { color <COLOR> } } @com.------------------------------ @mt2.max_intersections // set the maximum ray tracing intersection depth (1...200) [64] #max_intersections 64 @com.------------------------------ @mt2.max_trace_level // set the maximum ray tracing bounce depth (1...20) [5] #max_trace_level 5 @com.------------------------------ @mt2.version // Set the language version of POV-Ray. Enables or // disables syntax features that are version-dependent. // e.g. #version 1.0, or #version 2.0, etc. Default is // the current version of POV-Ray. // (Note: This can toggle versions anywhere in the source) #version 3.1 // use POV-Ray 3.1 syntax @com. @com.============================================================ @mt1.Animation @com.============================================================ @com. @com.------------------------------ @mt2.clock // spin the torus around the X axis, as "clock" goes from 0 to 1 // the torus will rotate one complete 360 degree revolution. // Note that the texture is put on BEFORE we rotate so it rotates too. torus { 1,0.2 pigment {color red 1} rotate clock*x*360} @com. @com.============================================================ @mt1.Expressions @com.============================================================ @com. @com.------------------------------ @mt2.Built-in Ids // These identifiers are built in to POV-Ray, ready to use // #declare pi = 3.1415926535897932384626 // #declare true = 1 // #declare yes = 1 // #declare on = 1 // #declare false = 0 // #declare no = 0 // #declare off = 0 // #declare u = <1,0> // #declare v = <0,1> // #declare x = <1,0,0> // #declare y = <0,1,0> // #declare z = <0,0,1> // #declare t = <0,0,0,1> @com.------------------------------ @mt2.Math Operators // ( ) * / + - ! #declare MyResult = -2*B + (A*A - 4) @mt2.Relational Operators // Relationals must be within parentheses // Return arithmetic value 0 for false or 1 for true // < <= = != >= > #declare BallColor = pigment { red (clock > 0.5) } // black or red @com.------------------------------ @mt2.Vector components // extract each component of a vector: // #if (MyVector.x > 5) ... // #if (MyVector.y > 5) ... // #if (MyVector.z > 5) ... // #if (MyVector.t > 5) ... @com.------------------------------ @mt2.Strings /* various string operations asc(S1) // Convert 1st character of S1 to ASCII value chr(A) // Convert extended ASCII value A to a 1 character string concat(S1,S2) // combine S1 and S2 into one long string file_exists(S1) // Search current and include directories for existence of file S1 (0 or 1) str(A,L,P) // Convert float A to string, at least L characters long, // with P digits after the decimal point (if P is -1, make max) strcmp(S1,S2) // compare S1 to S2, return -1, 0, or +1 if S2 is <, =, > than S1 strlen(S1) // Returns # of characters in string S1 strlwr(S1) // Lower case of S1 substr(S1,P,L) // Sub-string from S1, start at position P for length L strupr(S1) // Upper case of S1 val(S1) // Convert string S1 to float // some special control characters that can be used within strings "\a" Bell or alarm, 0x07 "\b" Backspace, 0x08 "\f" Form feed, 0x0C "\n" New line (line feed) 0x0A "\r" Carriage return 0x0D "\t" Horizontal tab 0x09 "\v" Vertical tab 0x0B "\0" Null 0x00 "\\" Backslash 0x5C "\'" Single quote 0x27 */ @com. @com.============================================================ @mt1.Light sources @com.============================================================ @com. @com.------------------------------ @mt2.Point light // create a regular point light source light_source { 0*x // light's position (translated below) color red 1.0 green 1.0 blue 1.0 // light's color translate <-20, 40, -20> } @com.------------------------------ @mt2.Spotlight // create a point "spotlight" (conical directed) light source light_source { 0*x // light's position (translated below) color rgb <1,1,1> // light's color spotlight // this kind of light source translate <40, 80, -40> // <x y z> position of light point_at <0, 0, 0> // direction of spotlight radius 5 // hotspot (inner, in degrees) tightness 50 // tightness of falloff (1...100) lower is softer, higher is tighter falloff 8 // intensity falloff radius (outer, in degrees) } @com.------------------------------ @mt2.Cylindrical light // create a point "spotlight" (cylindrical directed) light source light_source { 0*x // light's position (translated below) color rgb <1,1,1> // light's color spotlight // this kind of light source cylinder // this variation translate <40, 80, -40> // <x y z> position of light point_at <0, 0, 0> // direction of spotlight radius 5 // hotspot (inner, in degrees) tightness 50 // tightness of falloff (1...100) lower is softer, higher is tighter falloff 8 // intensity falloff radius (outer, in degrees) } @com.------------------------------ @mt2.looks_like // light_source { ... // put this inside a light_source to give it a visible appearance looks_like { sphere { 0*x, 5 pigment { Yellow } } } @com.------------------------------ @mt2.area light // An area light (creates soft shadows) // WARNING: This special light can significantly slow down rendering times! light_source { 0*x // light's position (translated below) color rgb 1.0 // light's color // <widthVector> <heightVector> nLightsWide mLightsHigh area_light <8, 0, 0> <0, 0, 8> // lights spread out across this distance (x * z) 4, 4 // total number of lights in grid (4x*4z = 16 lights) adaptive 0 // 0,1,2,3... jitter // adds random softening of light translate <40, 80, -40> // <x y z> position of light } @com.------------------------------ @mt2.Area spotlight // create an "area spotlight" (conically directed) light source light_source { <40, 80, -40> // light's position color rgb <1,1,1> // light's color spotlight // this kind of light source point_at <0, 0, 0> // direction of spotlight radius 5 // hotspot (inner, in degrees) tightness 50 // tightness of falloff (1...100) lower is softer, higher is tighter falloff 8 // intensity falloff radius (outer, in degrees) // <widthVector> <heightVector> nLightsWide mLightsHigh area_light <8, 0, 0> <0, 0, 8> // lights spread out across this distance (x * z) 4, 4 // total number of lights in grid (4x*4z = 16 lights) adaptive 1 // 0,1,2,3... jitter // adds random softening of light } @com.------------------------------ @mt2.light definition /* light_source { <CENTER> color <COLOUR> [ spotlight ] [ cylinder ] [ point_at <POINT> ] [ radius RADIUS ] [ falloff FALLOFF ] [ tightness TIGHTNESS ] [ area_light <AXIS1>, <AXIS2>, SIZE1, SIZE2 ] [ adaptive ADAPTIVE ] [ jitter JITTER ] [ looks_like { OBJECT } ] [ fade_distance FADE_DISTANCE ] [ fade_power FADE_POWER (1...2) ] [ atmospheric_attenuation BOOL ] [ shadowless ] } */ @com. @com.============================================================ @mt1.Misc. Directives @com.============================================================ @com. @com.------------------------------ @mt2.declare #declare MyColor = color red 0.7 green 0.5 blue 0.3 @com.------------------------------ @mt2.default // sets the default texture that objects get when they have no texture specified #default { texture { pigment {color red 1} finish{ambient 0.2} } } @com.------------------------------ @mt2.defined // Check if a user indentifier has been defined yet (via #declare) #if (!defined(BigBox_Shape)) #declare BigBox_Shape = box{-10,+10} #end // set up and check flags #if (!defined(MY_TEXTURE_INC_FILE)) #include "MyTexture.inc" #end @com.------------------------------ @mt2.if #if (expr) // true stuff happens here #else // false stuff happens here #end @com.------------------------------ @mt2.if example #if (High_Quality) // This section is parsed if High_Quality is true #end // End of conditional part // or you can use the else clause too #if (clock > 2) // This section is parsed if clock is > 2 #else // This section is parsed if clock is <= 2 #end // End of conditional part @com.------------------------------ @mt2.ifdef #ifdef (ident) // true stuff happens here #else // false stuff happens here #end @com.------------------------------ @mt2.ifdef example #ifdef (SphereFlake_Shape) // This section is parsed if SphereFlake_Shape is declared #else // This section is parsed if SphereFlake_Shape is NOT declared #declare SphereFlake_Shape = sphere {0,1} // make a default shape #end // End of conditional part @com.------------------------------ @mt2.switch #switch (expr) #case (expr) #break #range (expr,expr) #break #else #end @com.------------------------------ @mt2.switch example // Let's make some constant names #declare CS_Easy = 1 #declare CS_Medium = 3 #declare CS_Hard = 5 // Let the user choose the method to use #declare Complexity_Switch = CS_Medium // or CS_Easy or CS_Hard // Do something dependent on the user's choice #switch (Complexity_Switch) #case (CS_Easy) // This statement is done if (Complexity_Switch = CS_Easy) #declare MyShape = box{-1,+1} #break // end of CS_Easy #range (CS_Medium, CS_Hard) // This statement is done if Complexity_Switch is CS_Medium // or CS_Hard or anything in between #declare MyShape = torus{1, 0.5} #break // end of CS_Hard #else // This statement is done if none of the above match #declare MyShape = sphere{0,1} #end @com.------------------------------ @mt2.while // Create 10 balls along X axis, from 0 to 9 #declare BallCount = 0 #while (BallCount < 10) sphere { <BallCount,0,0>, // NOTE: <0,0,0>, <1,0,0>, <2,0,0>, etc. 0.5 } #declare BallCount = BallCount+1 // increment our counter #end @com.------------------------------ @mt2.Messages #debug "During scene parsing, general info message" #fatal "During scene parsing, display and force POV-Ray to stop" #render "After scene parsing, about to render" #statistics "After scene frame is rendered" #warning "During scene parsing" #end @com.------------------------------ @mt2.version #declare Temp_Vers = version // Save original value of #version #version 2.0 // Change to 1.0 mode // Version 2.0 stuff goes here ... #version Temp_Vers // Restore original #version value @com. @com.============================================================ @mt1.Shapes @com.============================================================ @com. @com.------------------------------ @mt2.bicubic_patch // 3D curved FINITE (no CSG) surface created from a mesh of triangles bicubic_patch { type 1 // patch_type (0..1) // 0 = Bezier patch, just store the triangular vertices // 1 = Bezier patch, store all plane equations defined by // the triangulation of the patch into sub patches // (faster, uses more memory) flatness 0.1 // flatness value // flatness_value = 0.0 to 1.0, with higher values // giving flatter, less smooth results u_steps 3 // # of triangles to subdivide (1-5) v_steps 3 // # of triangles to subdivide (1-5) <0, 0, 2> <1, 0, 0> <2, 0, 0> <3, 0, -2> <0, 1, 0> <1, 1, 0> <2, 1, 0> <3, 1, 0> <0, 2, 0> <1, 2, 0> <2, 2, 0> <3, 2, 0> <0, 3, 2> <1, 3, 0> <2, 3, 0> <3, 3, -2> } @com.------------------------------ @mt2.box // create a box that extends between the 2 specified points box { <-1, -1, -1> // one corner position <X1 Y1 Z1> < 1, 1, 1> // other corner position <X2 Y2 Z2> } @com.------------------------------ @mt2.blob // create a smooth blobby shape #declare StrengthVal = 1.0 // (+ or -) strength of component's radiating density #declare RadiusVal = 1.0 // (0 < RadiusVal) outer sphere of influence on other components blob { // threshold (0.0 < threshold <= StrengthVal) surface falloff threshold # threshold 0.6 sphere { < 0.75, 0, 0>, StrengthVal, RadiusVal } sphere { <-0.375, 0.65, 0>, StrengthVal, RadiusVal } sphere { <-0.375, -0.65, 0>, StrengthVal, RadiusVal } cylinder { -z, +z, 0.1, StrengthVal, RadiusVal } // [sturm] scale 2 } @com.------------------------------ @mt2.cone // clipped conical shape // cone { <END1>, RADIUS1, <END2>, RADIUS2 [open] } // Where <END1> and <END2> are vectors defining the x,y,z // coordinates of the center of each end of the cone // and RADIUS1 and RADIUS2 are float values for the radii // of those ends. open, if present, cone is hollow, else capped cone { 1*y, 0.0, -1*y, 1.0 // open } @com.------------------------------ @mt2.cubic // create a 3rd order infinite polynomial surface cubic { < // x^3, x^2y, x^2z, x^2, 0, 0, 0, 0, // xy^2, xyz, xy, xz^2, 0, 0, 0, 0, // xz, x, y^3, y^2z, 0, 0, 0, 0, // y^2, yz^2, yz, y, 0, 0, 0, 0, // z^3, z^2, z, C 0, 0, 0, 0 > sturm // optional, slower but reduces speckles } @mt2.cylinder // Capped Cylinder, closed [or open ended] // cylinder { <END1>, <END2>, RADIUS [open] } // END1 = coord of one end of cylinder // END2 = coord of other end // RADIUS = size of cylinder // open = if present, cylinder is hollow, else capped cylinder { 0*x, 3*x, 1 // open } @com.------------------------------ @mt2.disc // flat circular FINITE (no CSG) shape, center hole cutout is optional disc { <0, 1, 0> // center position z, // normal vector 1.0, // outer radius 0.2 // optional hole radius } @com.------------------------------ @mt2.fractal // create a 3-D slice of a 4-D julia fractal object julia_fractal { <-0.083,0.0,-0.83,-0.025> quaternion // hypercomplex? cube // TYPE: sqr cube max_iteration 8 precision 20 // 10...500? FIXME // slice xx? } @com.------------------------------ @mt2.height_field // uses image color index as height, extends along X-Z axes // from <0 0 0> to <1 1 1> height_field { gif // the file type to read (gif/tga/pot/pgm/ppm/png/sys) "plasma3.gif" // the file name to read // inverse | texture {...} // [smooth] // make smoother surface // [water_level N] // truncate/clip below N (0.0 ... 1.0) // translate VECTOR | rotate VECTOR | scale VECTOR } @com.------------------------------ @mt2.height_field+imagemap // uses image color index as height, extends along X-Z axes // from <0 0 0> to <1 1 1> height_field { gif "plasma3.gif" texture { pigment { image_map { gif "plasma3.gif" map_type 0 interpolate 2 once } rotate x*90 // lay X-Y image map down onto X-Z height field plane } } } @com.------------------------------ @mt2.lathe // rotate a 2-D outline of points around the Y axis to create a 3-D shape lathe { linear_spline // linear_spline | quadratic_spline | cubic_spline 5, // number of points <2, 0>, <3, 0>, <3, 5>, <2, 5>, <2, 0> // the list of <u,v> points } @com.------------------------------ @mt2.mesh // triangle or smooth-triangle mesh FINITE (no CSG) shape // NOTE: Each triangle can be independently textured, // remaining triangles get texture at bottom mesh // box example here { /* top side */ triangle { <-2, 2, -2>, <2, 2, -2>, <2, 2, 2> texture { Red } } triangle { <-2, 2, -2>, <-2, 2, 2>, <2, 2, 2> texture { Red } } /* bottom side */ triangle { <-2, -2, -2>, <2, -2, -2>, <2, -2, 2> } triangle { <-2, -2, -2>, <-2, -2, 2>, <2, -2, 2> } /* left side */ triangle { <-2, -2, -2>, <-2, -2, 2>, <-2, 2, 2> } triangle { <-2, -2, -2>, <-2, 2, -2>, <-2, 2, 2> } /* right side */ triangle { <2, -2, -2>, <2, -2, 2>, <2, 2, 2> texture { Green } } triangle { <2, -2, -2>, <2, 2, -2>, <2, 2, 2> texture { Green } } /* front side */ triangle { <-2, -2, -2>, <2, -2, -2>, <-2, 2, -2> texture { Blue } } triangle { <-2, 2, -2>, <2, 2, -2>, <2, -2, -2> texture { Blue } } /* back side */ triangle { <-2, -2, 2>, <2, -2, 2>, <-2, 2, 2> } triangle { <-2, 2, 2>, <2, 2, 2>, <2, -2, 2> } texture { // remaining triangles get this texture pigment { color rgb<0.9, 0.9, 0.9> } finish { ambient 0.2 diffuse 0.7 } } } @com.------------------------------ @mt2.object // general purpose enclosing wrapper for a predefined shape #define MyShape = box {-1,1} // define the shape object { MyShape } // create an actual object with that shape object { MyShape translate 3*x} // create another object with that shape @com.------------------------------ @mt2.plane // An infinite planar surface // plane {<A, B, C>, D } where: A*x + B*y + C*z = D plane { y, // <X Y Z> unit surface normal, vector points "away from surface" -1.0 // distance from the origin in the direction of the surface normal hollow on // has an inside pigment? } @com.------------------------------ @mt2.polygon // arbitrary X,Y FINITE (no CSG) shape // A complex example for a polygon is the letter "P": polygon { 12, // number of points <0, 0>, <0, 6>, <4, 6>, <4, 3>, <1, 3>, <1, 0>, <0, 0>, // list of <u,v> points <1, 4>, <1, 5>, <3, 5>, <3, 4>, <1, 4> } @com.------------------------------ @mt2.polynomial // create an Nth order infinite polynomial surface // poly { N <a,b,c...> [sturm] } // N = order of poly, M terms where M = (N+1)*(N+2)*(N+3)/6 poly { 5, // order of polynomial (2...7) < // x^5, x^4y, x^4z, x^4, 0, 0, 0, 0, // x^3y^2, x^3yz, x^3y, x^3z^2, 0, 0, 0, 0, // x^3z, x^3, x^2y^3, x^2y^2z, 0, 0, 0, 0, // x^2y^2, x^2yz^2, x^2yz, x^2y, 0, 0, 0, 0, // x^2z^3, x^2z^2, x^2z, x^2, 0, 0, 0, 0, // xy^4, xy^3z, xy^3, xy^2z^2, 0, 0, 0, 0, // xy^2z, xy^2, xyz^3, xyz^2, 0, 0, 0, 0, // xyz, xy, xz^4, xz^3, 0, 0, 0, 0, // xz^2, xz, x, y^5, 0, 0, 0, 0, // y^4z, y^4, y^3z^2, y^3z, 0, 0, 0, 0, // y^3, y^2z^3, y^2z^2, y^2z, 0, 0, 0, 0, // y^2, yz^4, yz^3, yz^2, 0, 0, 0, 0, // yz, y, z^5, z^4, 0, 0, 0, 0, // z^3, z^2, z, C 0, 0, 0, 0 > sturm // optional, slower but reduces speckles } @com.------------------------------ @mt2.prism // extrude a closed 2-D shape along an axis prism { linear_sweep // or conic_sweep for tapering to a point cubic_spline // linear_spline | quadratic_spline | cubic_spline -0.5, // height 1 0.5, // height 2 10, // number of points // the <u,v> points < 0.2, -1.0>, < 0.2, 0.2>, < 1.0, -0.2>, < 1.0, 0.2>, < 0.2, 1.0>, <-0.2, 1.0>, <-1.0, 0.2>, <-1.0, -0.2>, <-0.2, 0.2>, <-0.2, -1.0> // [open] // [sturm] } @com.------------------------------ @mt2.quadric // create a quadratic (2nd order) infinite polynomial surface quadric { <0, 1, 1> // A x^2 + B y^2 + C z^2 + <1, 0, 0> // D xy + E xz + F yz + <0, 3, 0> // G x + H y + I z + 2 // J sturm // optional, slower but reduces speckles } @com.------------------------------ @mt2.quartic // create a 4th order infinite polynomial surface quartic { < // x^4, x^3y, x^3z, x^3, x^2y^2, 0, 0, 0, 0, 0, // x^2yz, x^2y, x^2z^2, x^2z, x^2, 0, 0, 0, 0, 0, // xy^3, xy^2z, xy^2, xyz^2, xyz, 0, 0, 0, 0, 0, // xy, xz^3, xz^2, xz, x, 0, 0, 0, 0, 0, // y^4, y^3z, y^3, y^2z^2, y^2z, 0, 0, 0, 0, 0, // y^2, yz^3, yz^2, yz, y, 0, 0, 0, 0, 0, // z^4, z^3, z^2, z, C 0, 0, 0, 0, 0 > sturm // optional, slower but reduces speckles } @com.------------------------------ @mt2.smooth_triangle // rounded-surface FINITE (no CSG) triangle shape smooth_triangle { < 0, 30, 0> <0, 0.7071, -0.7071> // <Vertex1> <SurfaceNormal1> < 40, -20, 0> <0, -0.8664, -0.5> // <Vertex2> <SurfaceNormal2> < 0, 0, 0> <0, -0.5, -0.8664> // <Vertex3> <SurfaceNormal3> } @com.------------------------------ @mt2.sphere // create a sphere shape sphere { <0, 1, 0> // center of sphere <X Y Z> 0.5 // radius of sphere // scale <1,2,1> // <= Note: Spheres can become ellipses by uneven scaling } @com.------------------------------ @mt2.superellispoid // create a superquadric ellipsoid shape // As the exponents approach 1.0, the edges get rounder superellipsoid { 0.5, // east-west exponent (0.0 ... 1.0) 1.0, // north-south exponent (0.0 ... 1.0) } @com.------------------------------ @mt2.Surface of Revolution // create a Surface of Revolution shape (like lathe, but faster) surface_of_revolution { 7, // # of points <0.000000, 0.000000> // list of <u,v> points <0.118143, 0.000000> <0.620253, 0.540084> <0.210970, 0.827004> <0.194093, 0.962025> <0.286920, 1.000000> <0.468354, 1.033755> // [open] } @com.------------------------------ @mt2.text // create a TrueType text shape text { ttf // font type (only TrueType format for now) "crystal.ttf", // Microsoft Windows-format TrueType font file name "POV-Ray", // the string to create 2, // the extrusion depth 0 // inter-character spacing } @com.------------------------------ @mt2.torus // torus {MAJOR, MINOR} // (in the X-Z plane) // MAJOR = float value giving the major radius // MINOR = float specifying the minor radius // The major radius extends from the center of the hole // to the mid-line of the rim while the minor radius // is the radius of the cross-section of the rim. torus { 0.8, 0.2 } @com.------------------------------ @mt2.triangle // triangular FINITE (no CSG) shape (vertices are endpoints) triangle { <-1, 0, -1> // <Vertex1> < 1, 0, -1> // <Vertex2> < 0, 0, 1> // <Vertex3> } @com. @com.============================================================ @mt1.Shape modifiers @com.============================================================ @com. @com.------------------------------ @mt2.bounded_by // set an outer proposed boundary for parent object(s) // allows the ray-tracer to do a quick check on the Bounding Shape, // and if outside, it skips checking this object, which can speed // up overall rendering of complex shapes. Note that this // is not a 100% guaranteed clipping shape... use the // clipped_by statement for that. bounded_by { box { -(x+y+z) +(x+y+z) } @com.------------------------------ @mt2.clipped_by // set clipping shape for parent object. // (parent shape will not extend beyond ClipShape bounds) clipped_by { sphere { 0*x, 1.0 } } @com.------------------------------ @mt2.hollow // allow atmosphere inside shape hollow @com.------------------------------ @mt2.interior // describes inside of a shape (similar to texture, but for inside, not surface) interior { ior N caustics N fade_power N fade_distance D media {..media items..} } @com.------------------------------ @mt2.material // Optional wrapper to hold texture and interior items in a single identifier // MATERIAL: // material{[MATERIAL_IDENTIFIER][MATERIAL_ITEMS...]} // MATERIAL_ITEMS: // TEXTURE | INTERIOR #declare MyGlass = material{ texture{Glass_T} interior{Glass_I} } object{ MyObject material{MyGlass} } @com.------------------------------ @mt2.media media { intervals Number | samples Min, Max | confidence Value | variance Value | ratio Value | absorption COLOR | emission COLOR | scattering { Type, COLOR [ eccentricity Value ] [ extinction Value ] } density { [DENSITY_IDENTIFIER] [PATTERN_TYPE] [DENSITY_MODIFIER...] } } @com.------------------------------ @mt2.no_shadow // give object no shadow no_shadow @com.------------------------------ @mt2.open // some objects (cylinder, cone, prism, etc.) can have their ends open open @com. @com.============================================================ @mt1.CSG operations @com.============================================================ @com. @com.------------------------------ @mt2.difference // CSG difference, subtract intersections of shapes 2...N from Shape1 difference { Shape1 {...} // Start with this shape Shape2 {...} // This will be "cut out" of Shape1 ShapeN {...} // This will be "cut out" of Shape1 } @com.------------------------------ @mt2.intersection // CSG intersection, the common space where all the shapes meet intersection { Shape1 {...} Shape2 {...} ShapeN {...} } @com.------------------------------ @mt2.inverse // flip an object's inside and outside for intersect/difference intersection { Shape1 {...} Shape2 {... inverse } } @com.------------------------------ @mt2.merge // CSG merge, merge all of shapes 1...N // like “union”, but melted together so no overlap seam lines inside merge { Shape1 {...} Shape2 {...} ShapeN {...} } @com.------------------------------ @mt2.union // CSG union, add all of shapes 1...N union { Shape1 {...} Shape2 {...} ShapeN {...} } @com. @com.============================================================ @mt1.Transformations @com.============================================================ @com. @mt2.matrix // Matrix is an object transformation that does rotation about the Y axis, // shear along the Y axis, and translation along the Y axis matrix < 0.886, 0.5, 0.5, 0, 1, 0, 0.5, 0, -0.886, 0, 1.5, 0 > @com.------------------------------ @mt2.rotate // rotate shape or texture around <0 0 0>, relative to current orientation // example: rotate 30*x rotate <45, 45, 0> // <dX dY dZ> (in degrees) @com.------------------------------ @mt2.scale // "resize" an object or texture relative to its current size // example: scale 2.0 scale <1.0, 2.0, 1.0> // <dX dY dZ> @com.------------------------------ @mt2.translate // Move object or texture relative to current position // example: translate -5.0*z translate <2.0, 4.0, -1.0> // <dX dY dZ> @com.------------------------------ @mt2.Transform // object/texture transformation // do a predeclared translate/rotate/scale combo // e.g.: #declare Leaf_Orientation = transform { scale 4.0 rotate 30*z translate 2*y } transform Leaf_Orientation // transform an object @com. @com.============================================================ @mt1.Textures A-M @com.============================================================ @com. @com.------------------------------ @mt2.Texture Definition /* texture { TEXTURE_IDENTIFIER pigment { PIGMENT_IDENTIFIER PATTERN_TYPE PIGMENT_MODIFIERS TRANSFORMATIONS... } normal { NORMAL_IDENTIFIER NORMAL_PATTERN_TYPE NORMAL_MODIFIERS TRANSFORMATIONS... } finish { FINISH_IDENTIFIER [ ambient AMBIENT | <AMBIENT> ] [ diffuse DIFFUSE ] [ brilliance BRILLIANCE ] [ phong PHONG ] [ phong_size PHONG_SIZE ] [ specular SPECULAR ] [ roughness ROUGHNESS ] [ metallic [ METALLIC ] ] [ reflection REFLECTION | <REFLECTION> ] [ irid { thickness THICKNESS turbulence TURBULENCE } ] } interior { [ ior IOR ] [ caustics CAUSTICS ] [ fade_distance FADE_DISTANCE ] [ fade_power FADE_POWER ] } TRANSFORMATIONS } */ @com.------------------------------ @mt2.texture example texture { pigment { marble // some pattern color_map {[0.1 color red 1] [0.5 color rgbf 1]} turbulence 0.5 scale <1,3,1>// transformations } // same pattern for normal and pigment adds weathered bumps normal { marble // some pattern turbulence 0.5 scale <1,3,1>// transformations } finish { ambient 0.2 specular 0.6 // shiny } } @com.------------------------------ @mt2.agate pattern // texture pigment/normal pattern agate // use an agate-like texture agate_turb 0.3 // can alter turbulence [1.0] // color_map {...} // optional color map @com.------------------------------ @mt2.ambient finish // texture finish attribute ambient 0.2 // set ambient surface reflection (0...1) [0.1] @com.------------------------------ @mt2.attenuation finish // texture finish attribute fade_distance 50 fade_power 1 // 1 or 2 @com.------------------------------ @mt2.bozo pattern // texture pigment/normal pattern bozo // use color map to swirl colors // turbulence 0.3 // color_map... @com.------------------------------ @mt2.brick pattern // texture pigment/normal pattern pigment { brick color Red, color Gray brick_size <2,1,1> // size of brick mortar 0.2 // width of mortar } @com.------------------------------ @mt2.brilliance finish // texture finish attribute brilliance 0.5 // tightness of diffuse illumination @com.------------------------------ @mt2.bumps pattern // texture pigment/normal pattern bumps 0.3 // bumpy surface (0...1) @com.------------------------------ @mt2.caustics interior // interior attribute interior { ior 1.1 caustics 1.0 } @com.------------------------------ @mt2.checker // texture pigment/normal pattern // cube checker pattern, alternates color1 and color2 checker color red 1 green 1 blue 1 color red 0 green 1 blue 0 @com.------------------------------ @mt2.color // texture pigment attribute // RGB values can range from 0.0 (dark) to 1.0 (saturated) color red 0.5 green 0.5 blue 0.5 // filter 0.8 @com.------------------------------ @mt2.color_map // texture pigment {} attribute // create a smooth color gradation map color_map { // [ END_VAL color red R green G blue B filter F transmit T] [ 0.1 color red 0.0 green 0.0 blue 0.0] [ 0.3 color red 0.8 green 0.4 blue 0.2] [ 0.5 color red 0.0 green 0.0 blue 0.0] [ 0.7 color red 0.0 green 0.0 blue 0.8 filter 0.5] [ 1.0 color red 0.8 green 0.8 blue 0.8 filter 1.0] } // color_map @com.------------------------------ @mt2.crackle pattern // texture pigment/normal pattern crackle 0.5 turbulence 0.5 @com.------------------------------ @mt2.crand finish // texture finish attribute // randomly speckle the surface // Note, this is truly random, and looks BAD in animations crand 0.2 @com.------------------------------ @mt2.dents pattern // texture pigment/normal pattern dents 0.6 // dented surface (0...1) [0.0] @com.------------------------------ @mt2.diffuse finish // texture finish attribute diffuse 0.6 // amount of diffuse lighting (0...1) [0.6] @com.------------------------------ @mt2.finish component // texture statement (an object's surface/internal properties) finish { ambient 0.2 specular 0.5 reflection 0.2 } @com.------------------------------ @mt2.frequency attribute // texture pigment/normal attribute frequency 2.0 // oscillation freq. of radial, ripples, waves, etc @com.------------------------------ @mt2.gradient pattern // texture pigment/normal pattern gradient y // specify color_map direction(s) // color_map {...} // requires a color map @com.------------------------------ @mt2.granite pattern // texture pigment/normal pattern granite // create a granite-like texture // color_map {...} // optional color map @com.------------------------------ @mt2.hexagon pattern // texture pigment/normal pattern // create a hexagonal pattern texture with 3 colors // hexagons are in the X-Z plane, extending infinitely in Y plane hexagon color blue 1 color red 1 color green 1 @com.------------------------------ @mt2.irid finish // texture finish attribute irid { 0.4 // amount of iridescence saturation (0...1) [0] thickness 0.2 turbulence 0.7 } @com.------------------------------ @mt2.ior finish // texture finish attribute // 1.0=air, 1.33=water, 1.5=glass, 2.4=diamond (see also IOR.INC) ior 1.3 // index of refraction @com.------------------------------ @mt2.lambda attribute // texture pigment/normal attribute // change surface perturbation property // makes turbulence more "swirly" lambda 1.2 // (1.0...5.0) [2.0] @com.------------------------------ @mt2.leopard pattern // texture pigment/normal pattern leopard // create a leopard spotted texture // color_map {...} // optional color map @com.------------------------------ @mt2.mandel pattern // texture pigment/normal pattern // create a mandelbrot fractal surface in the X-Y plane mandel 50 // (2...1000) [256] // scale <...> translate <...> // zoom and move // color_map {...} // requires a color map @com.------------------------------ @mt2.marble pattern // texture pigment/normal pattern marble // create a marble-like texture // turbulence 1.0 // should have some! // color_map {...} // uses a color map @com.------------------------------ @mt2.metallic finish // texture finish attribute // use surface color, not light source color for phong hilights metallic on // on/off @com. @com.============================================================ @mt1.Textures N-Z @com.============================================================ @com. @com.------------------------------ @mt2.normal component // texture component // defines an object's surface bumpiness normal { wrinkles 0.5 scale 0.5 } @com.------------------------------ @mt2.octaves attribute // texture pigment/normal attribute // increases the "folds" in turbulence changes octaves 3 // (1...10) [6] @com.------------------------------ @mt2.omega attribute // texture pigment/normal attribute // change surface perturbation property // makes turbulence more "krinkly" omega 1.2 // (0.0...2.0) [0.5] @com.------------------------------ @mt2.onion pattern // texture pigment/normal pattern onion // create an onion-like concentric circle texture // color_map {...} // requires a color map @com.------------------------------ @mt2.pigment component // texture component (an object's surface color) pigment { color rgb <0.7,0.5,0.3> } @com.------------------------------ @mt2.phase attribute // texture pigment/normal attribute // change the phase of ripples, etc. // Animation note: As phase DECREASES, ripples move OUTWARD. phase 0.5 @com.------------------------------ @mt2.phong finish // texture finish attribute // add phong hilighting to surface (0...1) phong 0.8 @com.------------------------------ @mt2.phong_size finish // texture finish attribute // set the size of the phong spot (1...250) [40] // 20=dull rubber, 40=plastic, 200=shiny glass phong_size 80 @com.------------------------------ @mt2.quick_color attribute // texture pigment attribute quick_color green 1 // low-quality quick-render color @com.------------------------------ @mt2.quilted pattern // texture pigment/normal pattern // creates a pattern like a quilt quilted 0.4 // amount control0 -1 // lower curvature (-1...1) control1 1 // upper curvature (-1...1) @com.------------------------------ @mt2.radial pattern // texture pigment/normal pattern // radially projected color_map in X-Z radial // frequency 4.0 // increases # of color "spokes" // color_map ... @com.------------------------------ @mt2.reflection finish // texture finish attribute reflection 0.3 // amount of surface reflection (0...1) [0] @com.------------------------------ @mt2.ripples pattern // texture pigment/normal pattern ripples 0.5 // make surface ripply (0...1) @com.------------------------------ @mt2.roughness finish // texture finish attribute // alters specular hilighting roughness 0.01 // 1.0=rough, 0.001=smooth [0.05] @com.------------------------------ @mt2.specular finish // texture finish attribute // Note: size of hilight depends on roughness attribute specular 0.7 // use specular hilighting on surface (0...1) [0] @com.------------------------------ @mt2.spiral1 pattern // texture pigment/normal pattern spiral1 5 @com.------------------------------ @mt2.spiral2 pattern // texture pigment/normal pattern spiral2 5, 0.6 @com.------------------------------ @mt2.spotted pattern // texture pigment/normal pattern spotted // create a spotted texture, turbulence has no effect // color_map {...} // requires a color map @com.------------------------------ @mt2.turbulence attribute // texture pigment/normal attribute // Takes a float or vector, see also octaves, omega, lambda, frequency turbulence <0, 1, 0.5> // how much to “stir up” the texture (0...1 or more) @com.------------------------------ @mt2.warp attribute // texture pigment modifier warp { turbulence 0.4*x octaves 2 repeat x*2 flip y offset z*0.25 } @com.------------------------------ @mt2.waves pattern // texture pigment/normal pattern // create a wavy surface (also use phase) waves 0.5 @com.------------------------------ @mt2.wood pattern // texture pigment/normal pattern // create a concentric cylindrical wood-like texture, // grain along Z axis wood // turbulence 0.1 // should have some! // color_map {...} // optional color map @com.------------------------------ @mt2.wrinkles pattern // texture pigment/normal pattern // create a wrinkly surface (0...1 or more) wrinkles 0.5 @com.------------------------------ @com. @com.============================================================ @mt1.Texture Colors @com.============================================================ @com. @com.------------------------------ @mt2.blue color blue 1 @com.------------------------------ @mt2.filter color red 1 filter 1 @com.------------------------------ @mt2.green color green 1 @com.------------------------------ @mt2.red color red 1 @com.------------------------------ @mt2.transmit color green 1 transmit 1 @com.------------------------------ @mt2.rgb // rgb - Red Green Blue color shortcut color rgb <0.2, 0.3, 0.4> @com.------------------------------ @mt2.rgbf // rgbf - Red Green Blue Filter color shortcut color rgbf <0.2, 0.3, 0.4, 0.9> @com.------------------------------ @mt2.rgbft // rgbft - Red Green Blue Filter Transmit color shortcut // NOTE: filter + transmit should always equal 1.0 color rgbft <0.5, 0.5, 0.5, 0.4, 0.6> @com.------------------------------ @mt2.rgbt // rgbt - Red Green Blue Transmit color shortcut color rgbt <0.2, 0.3, 0.4, 0.9> @com.------------------------------ @mt2.color components // extract each component of a color: // #if (MyColor.red < 0.5) ... // #if (MyColor.green < 0.5) ... // #if (MyColor.blue < 0.5) ... // #if (MyColor.filter < 0.5) ... // #if (MyColor.transmit < 0.5) ... @com. @com.============================================================ @mt1.Texture Maps @com.============================================================ @com. @com.------------------------------ @mt2.bump_map normal // texture normal {} attribute // create a texture that has a bumpiness corresponding to color index // image maps into X-Y plane from <0,0,0> to <1,1,0> bump_map { // uses image color or index as bumpiness gif "plasma3.gif" // the file to read (iff/gif/tga/png/sys) map_type 0 // 0=planar, 1=spherical, 2=cylindrical, 5=torus interpolate 2 // 0=none, 1=linear, 2=bilinear, 4=normalized distance // [use_color | use_index] // [once] bump_size 0.5 // 0...3 } // bump_map @com.------------------------------ @mt2.image_map pigment // texture pigment {} attribute // create a texture that lays an image's colors onto a surface // image maps into X-Y plane from <0,0,0> to <1,1,0> image_map { gif "plasma3.gif" // the file to read (iff/gif/tga/png/sys) map_type 0 // 0=planar, 1=spherical, 2=cylindrical, 5=torus interpolate 2 // 0=none, 1=linear, 2=bilinear, 4=normalized distance // [filter N V] // N=all or color index # (0...N), V= value (0.0...1.0) // [transmit N V] // N=all or color index # (0...N), V= value (0.0...1.0) // [use_color | use_index] // [once] } // image_map @com.------------------------------ @mt2.material_map texture // texture attribute // create a texture that maps different textures onto different color indexes // image maps into X-Y plane from <0,0,0> to <1,1,0> material_map { gif "plasma3.gif" // the file to read (iff/gif/tga/png/sys) map_type 0 // 0=planar, 1=spherical, 2=cylindrical, 5=torus interpolate 2 // 0=none, 1=linear, 2=bilinear, 4=normalized distance // [once] texture { pigment {wood} } // texture for color index # 0 texture { pigment {granite} } // texture for color index # 1 texture { pigment {agate} } // texture for color index # 2 // etc... } // material_map @com.------------------------------ @mt2.tiles texture // texture component // create a tiled texture, alternates between 2 full textures tiles { texture // full texture of tile #1 { pigment { agate scale 0.3 } finish { ambient 0.2 } } tile2 texture // full texture of tile #2 { pigment { granite } finish { specular 0.3 reflection 0.2 } } } @com. @com.============================================================ @mt1.Std colors @com.============================================================ @com. @mt2."Colors.inc" // Standard pre-defined colors #include "colors.inc" @com. @com.============================================================ @mt1.Ready-Made Scenes @com.============================================================ @com. @com.------------------------------ @mt2.Basic scene // Persistence of Vision Ray Tracer Scene Description File // File: ?.pov // Vers: 3.1 // Desc: Basic Scene Example // Date: mm/dd/yy // Auth: ?[esp] // #version 3.1; #include "colors.inc" global_settings { assumed_gamma 1.0 } // ---------------------------------------- camera { location <0.0, 0.5, -4.0> direction 1.5*z right 4/3*x look_at <0.0, 0.0, 0.0> } sky_sphere { pigment { gradient y color_map { [0.0 color blue 0.6] [1.0 color rgb 1] } } } light_source { 0*x // light's position (translated below) color red 1.0 green 1.0 blue 1.0 // light's color translate <-30, 30, -30> } // ---------------------------------------- plane { y, -1 pigment {color rgb <0.7,0.5,0.3>}} sphere { 0.0, 1 texture {pigment {radial frequency 8} finish{specular 1}} } @com.------------------------------ @mt2.Checkered floor // Persistence of Vision Ray Tracer Scene Description File // File: ?.pov // Vers: 3.1 // Desc: Checkered Floor Example // Date: mm/dd/yy // Auth: ? // #version 3.1; #include "colors.inc" global_settings { assumed_gamma 1.0 } // ---------------------------------------- camera { location <0.0, 0.5, -4.0> direction 1.5*z right 4/3*x look_at <0.0, 0.0, 0.0> } sky_sphere { pigment { gradient y color_map { [0.0 color blue 0.6] [1.0 color rgb 1] } } } light_source { 0*x // light's position (translated below) color red 1.0 green 1.0 blue 1.0 // light's color translate <-30, 30, -30> } // ---------------------------------------- plane { y, -1 texture { pigment {checker color rgb 1 color blue 1 scale 0.5} finish {reflection 0.2} } } sphere { 0.0, 1 texture {pigment {radial frequency 8} finish{specular 1}} } @com.------------------------------ @mt2.Text Fonts // Persistence of Vision Ray Tracer Scene Description File // File: ?.pov // Vers: 3.1 // Desc: Basic TTF font Example // Date: mm/dd/yy // Auth: ? // #version 3.1; global_settings { assumed_gamma 1.0 } // ---------------------------------------- camera { location <0.0, 2.0, -6.0> direction 1.5*z right 4/3*x look_at <0.0, 0.0, 0.0> } sky_sphere { pigment { gradient y color_map { [0.0 color blue 0.6] [1.0 color rgb 1] } } } light_source { 0*x // light's position (translated below) color red 1.0 green 1.0 blue 1.0 // light's color translate <-20, 10, -30> } // ---------------------------------------- #declare Text_Tex = texture { pigment { granite scale 0.5 } finish { specular 0.7 } } text { ttf "crystal.ttf", "Hello", 2, // depth 0 // spacing texture {Text_Tex} rotate <0, -20, 0> translate <-1, 0, -3> } text { ttf "crystal.ttf", "Virtual World!", 1, // depth 0 // spacing scale <1, 2, 1> // stretch it taller texture {Text_Tex} rotate <0, -30, 0> translate <-3, 0, 3> } plane { y, 0 pigment {color rgb <0.7,0.5,0.3>} } @com.------------------------------ @mt2.Image Map // Persistence of Vision Ray Tracer Scene Description File // File: ?.pov // Vers: 3.1 // Desc: Image Map Example // Date: mm/dd/yy // Auth: ? // #version 3.1; #include "colors.inc" global_settings { assumed_gamma 1.0 } // ---------------------------------------- camera { location <0.0, 0.0, -4.0> direction 2*z right 4/3*x look_at <0.0, 0.0, 0.0> } sky_sphere { pigment { gradient y color_map { [0.0 color blue 0.6] [1.0 color rgb 1] } } } light_source { 0*x // light's position (translated below) color red 1.0 green 1.0 blue 1.0 // light's color translate <-30, 30, -30> } // ---------------------------------------- plane { y, -1 texture { pigment {checker color rgb 1 color blue 1 scale 0.5} finish {reflection 0.2} } } plane { z, -1 texture { pigment { image_map { png "test.png" interpolate 2 // smooth it once // don't tile image, just one copy filter 0 0.8 // make 1st color mostly transparent filter 1 0.8 // make 2nd color mostly transparent } // transform it to unit-size (-1 to +1) translate -0.5*(x+y) // center on the origin scale 2 // make it unit-sized } finish {ambient 0.3} } } @com.============================================================ @com.end of file is next @@@@