Lighthouse3d.com

Title: Terrain Generator

Latest Version: 1.2.5

Author: Antnio Ramires Fernandes

Downloads:

  • Win32 exe: tgwin.zip (89K)
  • Sources (win32 and linux) : tgsource.zip (30K)
  • Example TGA images: tgimages.zip (122K)

    		•
    Requirements: GLUI v2 (only to build the sources), GLUT, OpenGL.

    Note: you may need to edit the makefile in Linux to set the paths for your system.

    Features:

    Version 1.2.5:

  • Terrain smoothing with matrix filters

    • Version 1.2:

  • Particle deposition algorithm for terrain generation
  • Terrain smoothing
  • simple water plane

    • Version 1.1:

  • Added the mid point displacement algorithm for terrain generation

    • Version 1.0:

  • Algorithms for terrain generation: Fault and Circles
  • GLUI interface.
  • Full control over the parameters.
  • Two navigation modes: Examine and Fly.
  • OpenGL window grabber.
  • Save the height map as a TGA image.
  • Load a TGA image (non-compressed, and no index colors) and build the height map.

    • Very Short Users Manual (for more information see the Terrain Tutorial):

    Terrain Module:

  • Image: input the file name of a non-compressed RGB(A) or Greyscale TGA image. A height map will be built using the image data.
  • Generate: takes a width and height and generates a flat terrain

  • Surface Type: Choose between Triangles and Quads.
  • Surface Mode: Wireframe or Solid
  • Surface Lighting: OpenGL, Simulated, or Off
  • Surface Normals: if checked normals will be generated for the height map

  • Scale Heights: set the minimum and maximum height for the surface.
  • Scale Heights Apply: Apply the height scale.
  • Scale Heights Reset: Set the minimum height to 0 and the maximum height to 20

  • Show water plane: shows a blue horizontal plane.
  • Height: set the height of the water plane

  • Screen Shot: Grabs the OpenGL and saves it as a TGA image. Filenames are given sequentially, 3dtechscreenxxx, where xxx starts at 0.
  • Save as TGA: Convert the height field to a TGA image
    		•

  • Iterate
  • Function: select the function for terrain generation
  • Random Seed: random seeds only take effect when a new terrain is generated
  • Max. Disp: Selects the maximum displacement, i.e. the displacement for the first iteration
  • Min. Disp: Select the mimimum displacement
  • Interval: The displacement will decrease from max disp to min disp over a number of iterations, this field specifies that number of iterations. After the number of iterations is reached the displacement will be equal to the minimum displacement
  • Wave Size: Only valid for Fault-Sine and Fault-Cosine. It is the amplitude of the function. The larger the smoother the terrain.
  • Circle Size: Only valid for the circles algorithm. It is the radius of the circle
  • Sticking Particles: sets the particle mode. If checked the particles will stick where they are deposited, otherwise they will roll to form a smoother surface
  • Add. iterations: input here a number of iterations to add to the current total
  • it done: displays the number of iterations to date
  • Show: if checked it will show every iteration, otherwise you'll only see the results in the end.
  • Start: adds the number of iterations in "Add. iterations" to the total counter and starts iterating
  • Stop: stops the terrain generation
  • Roughness: determines the general look of the terrain, 1 is the default value. Higher values create rougher terrains.
  • Steps: The number of steps for the midpoint displacement algorithm. This determines the size of the terrain, so if the step is n, the terrain will be 2^n+1. For instance for n = 7, will end up with a terrain 129x129.
  • Roughness: sets the roughness of the surface for the midpoint displacement algorithm. Use higher values for rougher surfaces, smaller values will provide a smoother terrain
  • Steps: the number of iterations for the midpoint displacement algorithm. The terrain will be a square with ((2^n)+1) x ((2^n)+1), where n is the number of steps.
  • k: smoothing constant. Varies between 0 and 1. Higher values provide smoother surfaces.
  • Show Filter Options: Opens the Filter Options window

    • Navigation:

  • Examine: Use the GLUI controls
  • Fly: arrows move and rotate the camera, the mouse (button pressed) also changes the orientation. (note: if the mouse button is pressed and you press either up or down you'll move much faster than without the mouse button pressed)

    • Filter Options:

  • Filter: Select one of the predefined filters
  • Go For It!: Apply the filter defined in the matrix
  • Close Me: Close this window
  • The entries in the Matrix panel show the filter to apply. You can edit these values to create your own filters.

    • Z6y ];CƼ.YN%s*[Tlש-Ϭ "AcBёd<)Hu)n4ݛ0cյ~\׷B [튂OX(<~X1C]Kl:/e}ݝ8y6K9fԏu{jS[@O4t<^UմGiׯiZ¹[_Dk- Wf8{PF{F/*T  b ,n[tfQҖñA$xs1 y̧w2B1o5WzN{Ubߦ(avώ\C I5x)&gA{lJċ&cd12h@S=\7K(sRQ`EF@IN ~Ur]mohV(ƷyRL }|dJ!lvKO܁d,^M ’&^z!K0lɆB0I0;crUuq)gYЁTh+Qb$m%鬩,80Ds m2cc=3ϜG㠍E3u8! (IӗOxzVng_(uNIA.D7Q@x'b U'[\?I^{͵у28R~L|qXwSEN#zs;hf=g"^yKϷ@QT.EH?`nVv m?s! U٤0j-BH?6^Y",Ry0C)sg,k;WWļgQ`]F-E_߿o-;܅dygZmc 0P50j3P IAY:h>`O!!鷬,$A SDkJ2.):)JyP%4 N6 擗E''vKgks6xd* F#eNeu[wK .ŕgq/dL^ou\R] |ss]׬ IۀU[wL߫ZN =.";sPdVwmű:bd@^ܵ`$cQz!1'JhBvӛ#H;ׅTNi;Օ<4hd֧$HbբqAk?rDe9_gbxmd%KDC`ŢB4b0܏G|D c%e3(,IdGbGL2 !_B%73w VMf=/JXo+<廉?ѩrZ?~)H)>4f#N<[&p2\-$w{E>KX(Uv^xR.%tWZRmW k+R8^ ,$Y0IM,E`Ueh ֪ jkeZWW uEW fvsqycOrin1R704XX_W_"Uhr=D^(/L!!% e: w7榐"%m"͝G}<? |LR8B " P`VI])U2%$`n >Uхt+[x G6G&ɞ `XfS:;' 58XP>dRL*8`R0V܅LYncKj|F*i^ εTקOrJbt7L٦DBIYnmwC'(҂ qJ&ᵀ?^Q^nNv5@K mK6fu`iT̂*tfԬγx+k^~Wlkܼ~МAbSα7.95.~Z.7>9]yF|*.vˇvrX/ ᕗo~z;C 9 '3$@,]xz;uT=+gjUgu6t <*aˈS"N85.\sNUˇo^&;~'qߴ6]U\Gz~p쮸뫆our۸Jڗ]E0[pE5` .BY i ʃe&}s&{3ryOgK|jy:8 ?v5|,bg[L[aks=&3%Q-/G~P"$ѦHʍ{w RD?NgL"vbw ,7Pmyq ieK!} Pq4?Uſ+C󱳀GqV $ u9:3TL@9NsDS՟oh_r]6ӍK:sݗ^0>kRb+I ]0DG>7N\Bċ_慟0gNz17d?@PM]@JlrM`&;k{0f(~f3 \'Y n 3ұۉ  Ds^+yx l=Q߶YRcD< \՗+&f退ڷ^*9` <'r$ a4J-l`pup 9í .a|F]ZN_:Z}ȏ}K$Q0Fea`p/ ^6/c uH5lc{dSCX~8d.(E/zqRMЫ8!P@ ˛((eaټtOS؁P[ʹO|2tQE NYqNZ= UZ"Z־:PIeh-'6/u1/KT:yh[b# 91,M JP3|ؖԕ@YK‡+dT.I{vTt`c\mmv"&UՉ{/k.`ˆ[*Z}y=P6՚ß<՚ \ؐՊ yJͦV5sbCyV$AS7ȸK1܏4u0l tT( *})!U@d| vlЏhΐI)"H֖H].N,)fc+ z,&p .Xy@(lMP`FB=q"-ڤy2-(j""ۯDRg^mWjWk?|>q[JÒ(+0'LSdsYܷٷF\"(3&O΂%ϽZ-ot4f"9+.~Lڧx.< $-<>;jnz fHn~ ]3k>gO.T^}k3q[mY*k1BYr|E$ɨHJvJW-:W?-P!=jε.PNi8 }'f/E \t4ϳ*✴WItDrD˙`2{MVz륰u3TNŸgqQ j**B(s-^a9Fqy^j^4$l@'RjJLKFp)(|.S'NُK2v|J0֙ U$0:cg'&4# tOwsJwvvj:ɽ)}6L+:ܹ{3pF4dqHA[v`{!EBNX[%r$hi){oTA)( T8侘wOLeڧüOsˡ s))s~bPS-fw1G)gZkBP>ZK C6NJ˪LR)طfLz(4@/OӜྐྵoxXVR̳Trh z:(\$Vϛ06ow)>7bp7.CoiEA;1'Ո!Pr7X_ZLc4tbmI=~xq`w'qfw.8z@r'uX?ʫhbE sXI։disQ^_yl5:.,A|tʐit8߰!1%Tkz[ 7FVZ (,Bڶ{r*1 JsGΘ~xt-x:qG#Ǜ N0NHgSpϋvvdBO3oD7BdAИdP?PlmjMdO7SKR3]0aD^;>f]fXhM|o>a) bp^zS汳JN^D!}(R@1r^ k!%7#,IdTpU8F*l ~_Cwt4 zV`:7dg]3ʅDP{CIbV,z.qK9\& ;<s9j$=ؑ 8)Ѻsz7©]bH[P`w-2LByq跤#Zb DxZuAnS XbhZ ӝRԈEf3GEq&6ςQo?'Yʛ;8gb=7rύC~ZKIiyII7I']+:\EW0`Co`74cM[l, ]vOI 1}|6-~ahFL+pDMS~~PCXWEE*ጆ [c'Qls2 XQqc5_2L[5{D P()AxW9 !Kq.ERvr$cnj-k#FIK"0kfa{6й0F*u>w"0rL@IV먣+~HupKc}, Y +F04?o]mEV?yסCll`o6&kVj:[й(k Ѩ8yĀ2spK'S./}^UCyj3RmBn74n=ߙuX-j5˹'L JNǁh8kkY+LMpSd  -O^7S]Ҷ]G֭a, i tI=7Z ; $7E쒊؟ߡqNf&KAo.S0.nv~0@ݨi`Jxŷok^vE7շ8ݺ3J (龨9RkGabJ('\(CrD4 05]) ZF:u0+|Cd?)3ܐ5j_Y苗f.v/8^ƅ33 x5GQ f ߢa"W]%#R b'm<^em^I]$΍K*0`+f@gp%hKaCV^Yj%٘ڭҟdW*dx]r8>,OUI$YI8wd[DKP$gh{gȋ IPl LIBDnx† . @J(^y0lJ@H(?6ߧ --ǹq: t 8ҵwpJ-Cmj4 T:Gb[$l/${5ڗ<*YglxH;_\egx]V.Ӗ65RC) xMҢK+ġ"DC'Ϗ`7;~:s;y;p6\:L^׋ݡ{NאxAA]"46D;ra Y>`~ ĺ^%Y6rV.&OE%CDRp-ՐCz-PVMZOQY) o{ E3\@fk<E s2E5[>u:u,2~<9ѹ٠>nQ+Vm%GILDg4С_RVkJyj~bҟJ2!֘ 4;Ա|{j{d(,W3:Gi h bp]Xp%#" =  Ħ$9H}^^mҙ&DM48 R$'w.0J!/GC1QR)fwP>0\5:Ƣ38Z^ LQ5\TB+RrWCrH2O&D!=X)qN2C^I>P).<T@s9pLTBP}zy֑/sW(%\}ٛPewc]T)<4S{Z&`BQ4Lu5yaG5Jp,4`ǖk=J=4c*^!aQKנ#w}8$ZYg4ѐZR%q6ڤk Б}LH\h-=Ft 4}6$aBDi]<)Nl|,Y3.[U Xk%#JϭwP5Y!ְb ѰMN^wmʳu#t^g±1\łqJ^)l NsA.ٛ+Yءl ԀaƯwfuoʦb:MPըޞ1Wm[YC>':ŵ[BWEDQ" 1NFwqm ,!8G/BqY֣E. -XOuܺ!Y#NW78c^j#=F?jШДD&UMDtM[M޺-Er/4並zo7v_5ЕDİYgN:[#dۜ5p;X|2Hi0oqq iÎzBi)6,;6/MQ}: m͞5[id9A}|#d;ݪ9UH>@7p7dA~b-o*E?nt!"TQfMnr{A3lY 8>nm57y-5-eEAC )c]EjUj, S  =غa%e=p=3"O28Z`E竷VdB㬗o3eN' E.QL jT9GT9٨xYhvWh|܍KVPJ>cvY_PxFϭ];XVC*,xZli_+CS ۯtMVUMu d;JP'}H6~'ÌT#\Vм%+mv[lO@M O‡Bv &6!ltH!&}4L/+' ,9P'Y%\?nhrg 9@#avG霽| ̗H[=zr2 }/}jOsJb\'?e;}4GS91؝M{v)39[}ܜZh^7%67sUJzn4X4S=jxmo=sJyR%munh^oS%~,UJ ^zIɿhD>}|}c"l!45d8_nZ"-`jl , ]\`]ŕpq'C q=>6i:>6dJ2n{wXg%|37p$1Tˋ͢ݸb-`'?8uA[٧Y\['{Hmr'w.a: RNh{蟊O9b][oF}v~Ŗ/犺Yrd7vyѸ- +HieH}$eYI9䒢T')6{]2 Rd;JLbS04[!44O3~9*LɊ)}p&pLd = 1Ӄe ʰ:}|l~r!rSo:dQc+ZFfOS}Ec%Yf2F?|ۏVSjĉ5&&g#20^ߔiEk/9cӑ&z V#{FuHAB< 6KTEqNB<.R,R)hV#8o띔KdL]·Ajh0}%tA`y_D_&1wV)^h&5Wu3Z.eAmqLtgwmHk^ /_zs}z٫?Kn1 c?w^eH8Vs1W 㵙1`R.3SOF]7=iR(] B?f>uSmƿ^U^WIh*9S>ŷ eL22{T&2ju#z0Фzb|DmM,j.տ5ehӘ _G ~=ǭ~7t>[| AG9U,Z yjQ3:>X={^3%gnj桉cčpC{CB;j[YR: 3,\S7r/fx]ԕ{\aměMQ{S &.h1ɼ[u=uU>/ k׮ bP%Bh"z1 b F)]]K&bTTDXyQx%91ǚҧ)HA`Pn ݯ̤ŭ 3kQ>a8iv2zTWZ4o}?v ټQA;]}XZ- |dAedvCDte-XGAcEJD2iRwc i[#[*o=}jӇ!L T0_u(R;rff J`h3G#z7H.Y>}G/%[|\D q T kXEk 1 K9 f 8eX';HL۟ٺ <R{i&M>\f2Y6D=Ѝuˀu8Ih˙Hռ"ίA|ę ـڗSE OZRG=ZIAZنN4Fd-9\L\\^>FclJu+cMA8C3*lURF? %魲` lB~^5nꪅm;ڮ+񝌦q҆' w)qE]x^t;V2kI*>Wxنj' ] &ܺs{w=z<8?|o& G5j*t{ޠ9;)z34Uef'q?9EilOik4viǝFi4OPO.P(?Wje^*QQi)A:8G07