java - Texture not showing properly in java3d -
similar to: java3d: texture not applied obj model properly
except generate indexedtrianglearray myself , map texture.
the geometry fine takes colour of bottom left corner of texture image instead of stretching on entire image. testure.jpg 256*256 image.
edit: strangely, non-indexed trianglearray works fine. assume it's problem way i'm setting texture coordinates?
( switch between indexedtrianglearray , trianglearray, comment out line in main function )
import com.sun.j3d.utils.universe.*; import javax.vecmath.*; import javax.media.j3d.*; import java.awt.*; import org.j3d.geom.*; import com.sun.j3d.utils.geometry.*; import com.sun.j3d.utils.image.*; import java.io.*; public class semvce{ public static indexedtrianglearray getita(int gridsize, float h) { //creates terrain using indexedtrianglearray geometry int rows = gridsize, cols = gridsize; int vertexcount = gridsize*gridsize; int cols_1 = cols-1, rows_1 = rows-1; indexedtrianglearray ta = new indexedtrianglearray( vertexcount, indexedtrianglearray.coordinates | indexedtrianglearray.texture_coordinate_2, 6*rows_1*cols_1); point3f coords[] = new point3f[vertexcount]; texcoord2f texco[] = new texcoord2f[cols*rows]; //set vertices for(int i=0;i<cols;i++){ for(int j=0;j<rows;j++){ if(i%2==1 && j%2==1 ) coords[i*rows+j] = new point3f(i,h,j); else coords[i*rows+j] = new point3f(i,0,j); //texco[i*rows+j] = new texcoord2f((float)i/(gridsize-1),(float)j/(gridsize-1) ); } } (int i=0;i<vertexcount;i++){ texco[i] = new texcoord2f(coords[i].x /(gridsize-1), coords[i].z /(gridsize-1)); } ta.setcoordinates(0,coords); ta.settexturecoordinates(0,0, texco); //do indexes int offset = 0; for(int i=0;i<cols_1;i++){ for(int j=0;j<rows_1;j++){ offset = (i*rows_1+j)*6; ta.setcoordinateindex(offset+0, (i*rows + j)); ta.setcoordinateindex(offset+1, (i*rows+ j+1 )); ta.setcoordinateindex(offset+2, ((i+1)*rows + j)); ta.setcoordinateindex(offset+3, ((i+1)*rows + j)); ta.setcoordinateindex(offset+4, (i*rows+ j+1 )); ta.setcoordinateindex(offset+5, ((i+1)*rows + j+1)); } } return ta; } public static trianglearray gettrianglearray(int gridsize, float h){ //creates terrain using trianglearray geometry int rows = gridsize, cols = gridsize; int cols_1 = cols-1, rows_1 = rows-1; int vertexcount = 6*rows_1*cols_1; trianglearray ta = new trianglearray( vertexcount, indexedtrianglearray.coordinates | indexedtrianglearray.texture_coordinate_2); point3f coords[] = new point3f[vertexcount]; texcoord2f texco[] = new texcoord2f[vertexcount]; //do vertices int offset = 0; float height = 0; for(int i=0;i<cols_1;i++){ for(int j=0;j<rows_1;j++){ if(i%3==1 && j%3==1) height= h; else height = 0; offset = (i*rows_1+j)*6; coords[offset+0] = new point3f(i,0, j); coords[offset+1] = new point3f((i+1), 0,j); coords[offset+2] = new point3f(i, 0, j+1); coords[offset+3] = new point3f( (i+1), 0, j); coords[offset+4] = new point3f((i+1), 0,j+1); coords[offset+5] = new point3f(i,0, j+1); if(i%2==1 && j%2==1) coords[offset+0] = new point3f(i,h, j); else if(i%2==0 && j%2==0) coords[offset+4] = new point3f((i+1), h,j+1); else if( (i+1)%2==1 && j%2==1){ coords[offset+1] = new point3f(i+1,h,j); coords[offset+3] = new point3f(i+1,h,j); } else if( i%2==1 && (j+1)%2==1){ coords[offset+2] = new point3f(i,h, j+1); coords[offset+5] = new point3f(i,h, j+1); } } } int gridsize_1 = gridsize-1; (int i=0;i<vertexcount;i++){ texco[i] = new texcoord2f(coords[i].x / gridsize_1, coords[i].z / gridsize_1); } ta.setcoordinates(0,coords); ta.settexturecoordinates(0,0, texco); return ta; } public static texture2d loadtexture(string filename){ //imageobserver iobserve = new imageobserver(); textureloader loader = new textureloader(filename, new container()); imagecomponent2d image = loader.getimage(); texture2d texture = new texture2d(texture2d.base_level, texture2d.rgba, image.getwidth(), image.getheight() ); texture.setimage(0, image); texture.setenable( true ); texture.setboundarymodes(texture.wrap); texture.setboundarymodet(texture.wrap); return texture; } public static appearance getappearance(){ appearance appear = new appearance(); texture2d texture = loadtexture("texture.jpg"); appear.settexture(texture); polygonattributes polygonattributes = new polygonattributes(); polygonattributes.setcullface(polygonattributes.cull_none); //appear.settexcoordgeneration(new texcoordgeneration()); appear.setpolygonattributes(polygonattributes); return appear; } public static void main(string args[]){ simpleuniverse world = new simpleuniverse(); int gridsize=11; //comment out according want test //geometryarray geometry = gettrianglearray(gridsize,2); geometryarray geometry = getita(gridsize,2); shape3d shape= new shape3d(geometry,getappearance()); branchgroup bg = new branchgroup(); bg.addchild(shape); world.addbranchgraph(bg); setcameraposition(world.getviewingplatform(), new point3d(gridsize/2,5,-10), new point3d(gridsize/2,0,gridsize/2), new vector3d(0,1,0));//new point3d(gridsize/2,gridsize/2,gridsize/2), new point3d(gridsize/2,0,gridsize/2), new vector3d(0,1,0)); } public static void setcameraposition(viewingplatform vp,point3d from, point3d to, vector3d v){ transformgroup viewtransform = vp.getviewplatformtransform(); transform3d t3d = new transform3d(); t3d.lookat(from,to,v); t3d.invert(); viewtransform.settransform(t3d); } }
admittedly, could/should have noticed earlier, ... has been while since have actively been using java3d - , since then, i've been squeezing out meager knowledge , memories answer forum , stackoverfow questions ;-)
however: did set indices vertices, using the
ta.setcoordinateindex(...); calls. additionally have set indices texture coordinates, using
ta.settexturecoordinateindex(0, ...); the 0 refers texture coordinate set (there may multiple textures, different coordinate sets). apart that, indices same vertices here.
here again, mcve. (the image name changed. lena rules!)
import java.awt.borderlayout; import java.awt.container; import java.awt.graphicsconfiguration; import javax.media.j3d.appearance; import javax.media.j3d.branchgroup; import javax.media.j3d.canvas3d; import javax.media.j3d.geometryarray; import javax.media.j3d.imagecomponent2d; import javax.media.j3d.indexedtrianglearray; import javax.media.j3d.polygonattributes; import javax.media.j3d.shape3d; import javax.media.j3d.texture; import javax.media.j3d.texture2d; import javax.media.j3d.transform3d; import javax.media.j3d.transformgroup; import javax.media.j3d.trianglearray; import javax.swing.jframe; import javax.vecmath.point3d; import javax.vecmath.point3f; import javax.vecmath.texcoord2f; import javax.vecmath.vector3d; import com.sun.j3d.utils.image.textureloader; import com.sun.j3d.utils.universe.simpleuniverse; import com.sun.j3d.utils.universe.viewingplatform; public class semvce { public static indexedtrianglearray getita(int gridsize, float h) { int rows = gridsize, cols = gridsize; int vertexcount = gridsize * gridsize; int cols_1 = cols - 1, rows_1 = rows - 1; indexedtrianglearray ta = new indexedtrianglearray(vertexcount, indexedtrianglearray.coordinates | indexedtrianglearray.texture_coordinate_2, 6 * rows_1 * cols_1); point3f coords[] = new point3f[vertexcount]; texcoord2f texco[] = new texcoord2f[cols * rows]; // set vertices (int = 0; < cols; i++) { (int j = 0; j < rows; j++) { if (i % 2 == 1 && j % 2 == 1) coords[i * rows + j] = new point3f(i, h, j); else coords[i * rows + j] = new point3f(i, 0, j); } } (int = 0; < vertexcount; i++) { texco[i] = new texcoord2f( coords[i].x / (gridsize - 1), coords[i].z / (gridsize - 1)); } ta.setcoordinates(0, coords); ta.settexturecoordinates(0, 0, texco); // indexes int offset = 0; (int = 0; < cols_1; i++) { (int j = 0; j < rows_1; j++) { offset = (i * rows_1 + j) * 6; ta.setcoordinateindex(offset + 0, (i * rows + j)); ta.setcoordinateindex(offset + 1, (i * rows + j + 1)); ta.setcoordinateindex(offset + 2, ((i + 1) * rows + j)); ta.setcoordinateindex(offset + 3, ((i + 1) * rows + j)); ta.setcoordinateindex(offset + 4, (i * rows + j + 1)); ta.setcoordinateindex(offset + 5, ((i + 1) * rows + j + 1)); ta.settexturecoordinateindex(0, offset + 0, (i * rows + j)); ta.settexturecoordinateindex(0, offset + 1, (i * rows + j + 1)); ta.settexturecoordinateindex(0, offset + 2, ((i + 1) * rows + j)); ta.settexturecoordinateindex(0, offset + 3, ((i + 1) * rows + j)); ta.settexturecoordinateindex(0, offset + 4, (i * rows + j + 1)); ta.settexturecoordinateindex(0, offset + 5, ((i + 1) * rows + j + 1)); } } return ta; } public static trianglearray gettrianglearray(int gridsize, float h) { // creates terrain using trianglearray geometry int rows = gridsize, cols = gridsize; int cols_1 = cols - 1, rows_1 = rows - 1; int vertexcount = 6 * rows_1 * cols_1; trianglearray ta = new trianglearray(vertexcount, indexedtrianglearray.coordinates | indexedtrianglearray.texture_coordinate_2); point3f coords[] = new point3f[vertexcount]; texcoord2f texco[] = new texcoord2f[vertexcount]; // vertices int offset = 0; float height = 0; (int = 0; < cols_1; i++) { (int j = 0; j < rows_1; j++) { if (i % 3 == 1 && j % 3 == 1) height = h; else height = 0; offset = (i * rows_1 + j) * 6; coords[offset + 0] = new point3f(i, 0, j); coords[offset + 1] = new point3f((i + 1), 0, j); coords[offset + 2] = new point3f(i, 0, j + 1); coords[offset + 3] = new point3f((i + 1), 0, j); coords[offset + 4] = new point3f((i + 1), 0, j + 1); coords[offset + 5] = new point3f(i, 0, j + 1); if (i % 2 == 1 && j % 2 == 1) coords[offset + 0] = new point3f(i, h, j); else if (i % 2 == 0 && j % 2 == 0) coords[offset + 4] = new point3f((i + 1), h, j + 1); else if ((i + 1) % 2 == 1 && j % 2 == 1) { coords[offset + 1] = new point3f(i + 1, h, j); coords[offset + 3] = new point3f(i + 1, h, j); } else if (i % 2 == 1 && (j + 1) % 2 == 1) { coords[offset + 2] = new point3f(i, h, j + 1); coords[offset + 5] = new point3f(i, h, j + 1); } } } int gridsize_1 = gridsize - 1; (int = 0; < vertexcount; i++) { texco[i] = new texcoord2f(coords[i].x / gridsize_1, coords[i].z / gridsize_1); } ta.setcoordinates(0, coords); ta.settexturecoordinates(0, 0, texco); return ta; } public static texture2d loadtexture(string filename) { // imageobserver iobserve = new imageobserver(); textureloader loader = new textureloader(filename, new container()); imagecomponent2d image = loader.getimage(); texture2d texture = new texture2d(texture2d.base_level, texture2d.rgba, image.getwidth(), image.getheight()); texture.setimage(0, image); texture.setenable(true); texture.setboundarymodes(texture.wrap); texture.setboundarymodet(texture.wrap); return texture; } public static appearance getappearance() { appearance appear = new appearance(); texture2d texture = loadtexture("lena512color.png"); appear.settexture(texture); polygonattributes polygonattributes = new polygonattributes(); polygonattributes.setcullface(polygonattributes.cull_none); // appear.settexcoordgeneration(new texcoordgeneration()); appear.setpolygonattributes(polygonattributes); return appear; } public static void main(string args[]) { system.setproperty("sun.awt.noerasebackground","true"); graphicsconfiguration config = simpleuniverse.getpreferredconfiguration(); canvas3d c = new canvas3d(config); jframe f = new jframe(); f.getcontentpane().add(c, borderlayout.center); simpleuniverse u = new simpleuniverse(c); u.getviewingplatform().setnominalviewingtransform(); int gridsize=11; // comment out according want test //geometryarray geometry = gettrianglearray(gridsize,2); geometryarray geometry = getita(gridsize, 2); shape3d shape = new shape3d(geometry, getappearance()); branchgroup bg = new branchgroup(); bg.addchild(shape); u.addbranchgraph(bg); setcameraposition(u.getviewingplatform(), new point3d(gridsize/2,5,-10), new point3d(gridsize/2,0,gridsize/2), new vector3d(0,1,0)); f.setsize(600,600); f.setlocationrelativeto(null); f.setvisible(true); } public static void setcameraposition(viewingplatform vp, point3d from, point3d to, vector3d v) { transformgroup viewtransform = vp.getviewplatformtransform(); transform3d t3d = new transform3d(); t3d.lookat(from, to, v); t3d.invert(); viewtransform.settransform(t3d); } }
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