void
makeSceneDOF(limnCamera *cam, echoRTParm *parm, echoScene *scene) {
  echoObject *rect;
  Nrrd *ntext;
  
  ELL_3V_SET(cam->from, 6, 6, 20);
  ELL_3V_SET(cam->at,   0, 0, 0);
  ELL_3V_SET(cam->up,   0, 1, 0);
  cam->uRange[0] = -3.3;
  cam->uRange[1] = 3.3;
  cam->vRange[0] = -3.3;
  cam->vRange[1] = 3.3;

  parm->jitterType = echoJitterJitter;
  parm->numSamples = 4;
  parm->imgResU = 300;
  parm->imgResV = 300;
  parm->aperture = 0.5;
  parm->renderLights = AIR_FALSE;
  parm->renderBoxes = AIR_FALSE;
  parm->seedRand = AIR_FALSE;
  parm->maxRecDepth = 10;
  parm->shadow = 1.0;

  nrrdLoad(ntext = nrrdNew(), "tmp.png", NULL);

  rect = echoObjectNew(scene, echoTypeRectangle);
  echoRectangleSet(rect,
                   -0.5, 1.5, -3,
                   2, 0, 0,
                   0, -2, 0);
  echoColorSet(rect, 1, 0.5, 0.5, 1);
  echoMatterPhongSet(scene, rect, 1.0, 0.0, 0.0, 1);
  echoMatterTextureSet(scene, rect, ntext);
  echoObjectAdd(scene, rect);

  rect = echoObjectNew(scene, echoTypeRectangle);
  echoRectangleSet(rect,
                   -1, 1, 0,
                   2, 0, 0,
                   0, -2, 0);
  echoColorSet(rect, 0.5, 1, 0.5, 1);
  echoMatterPhongSet(scene, rect, 1.0, 0.0, 0.0, 1);
  echoMatterTextureSet(scene, rect, ntext);
  echoObjectAdd(scene, rect);

  rect = echoObjectNew(scene, echoTypeRectangle);
  echoRectangleSet(rect,
                   -1.5, 0.5, 3,
                   2, 0, 0,
                   0, -2, 0);
  echoColorSet(rect, 0.5, 0.5, 1, 1);
  echoMatterPhongSet(scene, rect, 1.0, 0.0, 0.0, 1);
  echoMatterTextureSet(scene, rect, ntext);
  echoObjectAdd(scene, rect);

  return;
}
void
makeSceneRainLights(limnCamera *cam, echoRTParm *parm, echoScene *scene) {
  echoObject *sphere, *rect;
  int i, N;
  echoPos_t w;
  float r, g, b;

  ELL_3V_SET(cam->from, 2.5, 0, 5);
  ELL_3V_SET(cam->at,   0, 0, 0);
  ELL_3V_SET(cam->up,   0, 0, 1);
  cam->uRange[0] = -1.7;
  cam->uRange[1] = 1.7;
  cam->vRange[0] = -1.7;
  cam->vRange[1] = 1.7;

  parm->jitterType = echoJitterJitter;
  parm->numSamples = 36;
  parm->imgResU = 1000;
  parm->imgResV = 1000;
  parm->numSamples = 16;
  parm->imgResU = 200;
  parm->imgResV = 200;
  parm->aperture = 0.0;
  parm->renderLights = AIR_TRUE;
  parm->shadow = 0.0;
  ELL_3V_SET(scene->bkgr, 0.1, 0.1, 0.1);

  /* create scene */
  sphere = echoObjectNew(scene, echoTypeSphere);
  echoSphereSet(sphere, 0, 0, 0, 1.0);
  echoColorSet(sphere, 1.0, 1.0, 1.0, 1.0);
  echoMatterPhongSet(scene, sphere, 0.02, 0.2, 1.0, 400);
  echoObjectAdd(scene, sphere);

  N = 8;
  w = 1.7/N;

  for (i=0; i<N; i++) {
    rect = echoObjectNew(scene, echoTypeRectangle);
    echoRectangleSet(rect,
                     w/2, AIR_AFFINE(0, i, N-1, -1-w/2, 1-w/2), 1.5,
                     0, w, 0,
                     w, 0, 0);
    _dyeHSVtoRGB(&r, &g, &b, AIR_AFFINE(0, i, N, 0.0, 1.0), 1.0, 1.0);
    echoColorSet(rect, r, g, b, 1);
    echoMatterLightSet(scene, rect, 1, 0);
    echoObjectAdd(scene, rect);
  }

}
Beispiel #3
0
int
tenGlyphGen(limnObject *glyphsLimn, echoScene *glyphsEcho,
            tenGlyphParm *parm,
            const Nrrd *nten, const Nrrd *npos, const Nrrd *nslc) {
  static const char me[]="tenGlyphGen";
  gageShape *shape;
  airArray *mop;
  float *tdata, eval[3], evec[9], *cvec, rotEvec[9], mA_f[16],
    absEval[3], glyphScl[3];
  double pI[3], pW[3], cl, cp, sRot[16], mA[16], mB[16], msFr[9], tmpvec[3],
    R, G, B, qA, qB, qC, glyphAniso, sliceGray;
  unsigned int duh;
  int slcCoord[3], idx, glyphIdx, axis, numGlyphs,
    svRGBAfl=AIR_FALSE;
  limnLook *look; int lookIdx;
  echoObject *eglyph, *inst, *list=NULL, *split, *esquare;
  echoPos_t eM[16], originOffset[3], edge0[3], edge1[3];
  char stmp[AIR_STRLEN_SMALL];
  /*
  int eret;
  double tmp1[3], tmp2[3];
  */

  if (!( (glyphsLimn || glyphsEcho) && nten && parm)) {
    biffAddf(TEN, "%s: got NULL pointer", me);
    return 1;
  }
  mop = airMopNew();
  shape = gageShapeNew();
  shape->defaultCenter = nrrdCenterCell;
  airMopAdd(mop, shape, (airMopper)gageShapeNix, airMopAlways);
  if (npos) {
    if (!( 2 == nten->dim && 7 == nten->axis[0].size )) {
      biffAddf(TEN, "%s: nten isn't 2-D 7-by-N array", me);
      airMopError(mop); return 1;
    }
    if (!( 2 == npos->dim && 3 == npos->axis[0].size
           && nten->axis[1].size == npos->axis[1].size )) {
      biffAddf(TEN, "%s: npos isn't 2-D 3-by-%s array", me,
               airSprintSize_t(stmp, nten->axis[1].size));
      airMopError(mop); return 1;
    }
    if (!( nrrdTypeFloat == nten->type && nrrdTypeFloat == npos->type )) {
      biffAddf(TEN, "%s: nten and npos must be %s, not %s and %s", me,
               airEnumStr(nrrdType, nrrdTypeFloat),
               airEnumStr(nrrdType, nten->type),
               airEnumStr(nrrdType, npos->type));
      airMopError(mop); return 1;
    }
  } else {
    if (tenTensorCheck(nten, nrrdTypeFloat, AIR_TRUE, AIR_TRUE)) {
      biffAddf(TEN, "%s: didn't get a valid DT volume", me);
      airMopError(mop); return 1;
    }
  }
  if (tenGlyphParmCheck(parm, nten, npos, nslc)) {
    biffAddf(TEN, "%s: trouble", me);
    airMopError(mop); return 1;
  }
  if (!npos) {
    if (gageShapeSet(shape, nten, tenGageKind->baseDim)) {
      biffMovef(TEN, GAGE, "%s: trouble", me);
      airMopError(mop); return 1;
    }
  }
  if (parm->doSlice) {
    ELL_3V_COPY(edge0, shape->spacing);
    ELL_3V_COPY(edge1, shape->spacing);
    edge0[parm->sliceAxis] = edge1[parm->sliceAxis] = 0.0;
    switch(parm->sliceAxis) {
    case 0:
      edge0[1] = edge1[2] = 0;
      ELL_4M_ROTATE_Y_SET(sRot, AIR_PI/2);
      break;
    case 1:
      edge0[0] = edge1[2] = 0;
      ELL_4M_ROTATE_X_SET(sRot, AIR_PI/2);
      break;
    case 2: default:
      edge0[0] = edge1[1] = 0;
      ELL_4M_IDENTITY_SET(sRot);
      break;
    }
    ELL_3V_COPY(originOffset, shape->spacing);
    ELL_3V_SCALE(originOffset, -0.5, originOffset);
    originOffset[parm->sliceAxis] *= -2*parm->sliceOffset;
  }
  if (glyphsLimn) {
    /* create limnLooks for diffuse and ambient-only shading */
    /* ??? */
    /* hack: save old value of setVertexRGBAFromLook, and set to true */
    svRGBAfl = glyphsLimn->setVertexRGBAFromLook;
    glyphsLimn->setVertexRGBAFromLook = AIR_TRUE;
  }
  if (glyphsEcho) {
    list = echoObjectNew(glyphsEcho, echoTypeList);
  }
  if (npos) {
    numGlyphs = AIR_UINT(nten->axis[1].size);
  } else {
    numGlyphs = shape->size[0] * shape->size[1] * shape->size[2];
  }
  /* find measurement frame transform */
  if (3 == nten->spaceDim
      && AIR_EXISTS(nten->measurementFrame[0][0])) {
    /*     msFr        nten->measurementFrame
    **   0  1  2      [0][0]   [1][0]   [2][0]
    **   3  4  5      [0][1]   [1][1]   [2][1]
    **   6  7  8      [0][2]   [1][2]   [2][2]
    */
    msFr[0] = nten->measurementFrame[0][0];
    msFr[3] = nten->measurementFrame[0][1];
    msFr[6] = nten->measurementFrame[0][2];
    msFr[1] = nten->measurementFrame[1][0];
    msFr[4] = nten->measurementFrame[1][1];
    msFr[7] = nten->measurementFrame[1][2];
    msFr[2] = nten->measurementFrame[2][0];
    msFr[5] = nten->measurementFrame[2][1];
    msFr[8] = nten->measurementFrame[2][2];
  } else {
    ELL_3M_IDENTITY_SET(msFr);
  }
  for (idx=0; idx<numGlyphs; idx++) {
    tdata = (float*)(nten->data) + 7*idx;
    if (parm->verbose >= 2) {
      fprintf(stderr, "%s: glyph %d/%d: hello %g    %g %g %g %g %g %g\n",
              me, idx, numGlyphs, tdata[0],
              tdata[1], tdata[2], tdata[3],
              tdata[4], tdata[5], tdata[6]);
    }
    if (!( TEN_T_EXISTS(tdata) )) {
      /* there's nothing we can do here */
      if (parm->verbose >= 2) {
        fprintf(stderr, "%s: glyph %d/%d: non-existent data\n",
                me, idx, numGlyphs);
      }
      continue;
    }
    if (npos) {
      ELL_3V_COPY(pW, (float*)(npos->data) + 3*idx);
      if (!( AIR_EXISTS(pW[0]) && AIR_EXISTS(pW[1]) && AIR_EXISTS(pW[2]) )) {
        /* position doesn't exist- perhaps because its from the push
           library, which might kill points by setting coords to nan */
        continue;
      }
    } else {
      NRRD_COORD_GEN(pI, shape->size, 3, idx);
      /* this does take into account full orientation */
      gageShapeItoW(shape, pW, pI);
      if (parm->nmask) {
        if (!( nrrdFLookup[parm->nmask->type](parm->nmask->data, idx)
               >= parm->maskThresh )) {
          if (parm->verbose >= 2) {
            fprintf(stderr, "%s: glyph %d/%d: doesn't meet mask thresh\n",
                    me, idx, numGlyphs);
          }
          continue;
        }
      }
    }
    tenEigensolve_f(eval, evec, tdata);
    /* transform eigenvectors by measurement frame */
    ELL_3MV_MUL(tmpvec, msFr, evec + 0);
    ELL_3V_COPY_TT(evec + 0, float, tmpvec);
    ELL_3MV_MUL(tmpvec, msFr, evec + 3);
    ELL_3V_COPY_TT(evec + 3, float, tmpvec);
    ELL_3MV_MUL(tmpvec, msFr, evec + 6);
    ELL_3V_COPY_TT(evec + 6, float, tmpvec);
    ELL_3V_CROSS(tmpvec, evec + 0, evec + 3);
    if (0 > ELL_3V_DOT(tmpvec, evec + 6)) {
      ELL_3V_SCALE(evec + 6, -1, evec + 6);
    }
    ELL_3M_TRANSPOSE(rotEvec, evec);
    if (parm->doSlice
        && pI[parm->sliceAxis] == parm->slicePos) {
      /* set sliceGray */
      if (nslc) {
        /* we aren't masked by confidence, as anisotropy slice is */
        for (duh=0; duh<parm->sliceAxis; duh++) {
          slcCoord[duh] = (int)(pI[duh]);
        }
        for (duh=duh<parm->sliceAxis; duh<2; duh++) {
          slcCoord[duh] = (int)(pI[duh+1]);
        }
        /* HEY: GLK has no idea what's going here */
        slcCoord[0] = (int)(pI[0]);
        slcCoord[1] = (int)(pI[1]);
        slcCoord[2] = (int)(pI[2]);
        sliceGray =
          nrrdFLookup[nslc->type](nslc->data, slcCoord[0]
                                  + nslc->axis[0].size*slcCoord[1]);
      } else {
        if (!( tdata[0] >= parm->confThresh )) {
          if (parm->verbose >= 2) {
            fprintf(stderr, "%s: glyph %d/%d (slice): conf %g < thresh %g\n",
                    me, idx, numGlyphs, tdata[0], parm->confThresh);
          }
          continue;
        }
        sliceGray = tenAnisoEval_f(eval, parm->sliceAnisoType);
      }
      if (parm->sliceGamma > 0) {
        sliceGray = AIR_AFFINE(0, sliceGray, 1, parm->sliceBias, 1);
        sliceGray = pow(sliceGray, 1.0/parm->sliceGamma);
      } else {
        sliceGray = AIR_AFFINE(0, sliceGray, 1, 0, 1-parm->sliceBias);
        sliceGray = 1.0 - pow(sliceGray, -1.0/parm->sliceGamma);
      }
      /* make slice contribution */
      /* HEY: this is *NOT* aware of shape->fromOrientation */
      if (glyphsLimn) {
        lookIdx = limnObjectLookAdd(glyphsLimn);
        look = glyphsLimn->look + lookIdx;
        ELL_4V_SET_TT(look->rgba, float, sliceGray, sliceGray, sliceGray, 1);
        ELL_3V_SET(look->kads, 1, 0, 0);
        look->spow = 0;
        glyphIdx = limnObjectSquareAdd(glyphsLimn, lookIdx);
        ELL_4M_IDENTITY_SET(mA);
        ell_4m_post_mul_d(mA, sRot);
        if (!npos) {
          ELL_4M_SCALE_SET(mB,
                           shape->spacing[0],
                           shape->spacing[1],
                           shape->spacing[2]);
        }
        ell_4m_post_mul_d(mA, mB);
        ELL_4M_TRANSLATE_SET(mB, pW[0], pW[1], pW[2]);
        ell_4m_post_mul_d(mA, mB);
        ELL_4M_TRANSLATE_SET(mB,
                             originOffset[0],
                             originOffset[1],
                             originOffset[2]);
        ell_4m_post_mul_d(mA, mB);
        ELL_4M_COPY_TT(mA_f, float, mA);
        limnObjectPartTransform(glyphsLimn, glyphIdx, mA_f);
      }
      if (glyphsEcho) {
        esquare = echoObjectNew(glyphsEcho,echoTypeRectangle);
        ELL_3V_ADD2(((echoRectangle*)esquare)->origin, pW, originOffset);
        ELL_3V_COPY(((echoRectangle*)esquare)->edge0, edge0);
        ELL_3V_COPY(((echoRectangle*)esquare)->edge1, edge1);
        echoColorSet(esquare,
                     AIR_CAST(echoCol_t, sliceGray),
                     AIR_CAST(echoCol_t, sliceGray),
                     AIR_CAST(echoCol_t, sliceGray), 1);
        /* this is pretty arbitrary- but I want shadows to have some effect.
           Previously, the material was all ambient: (A,D,S) = (1,0,0),
           which avoided all shadow effects. */
        echoMatterPhongSet(glyphsEcho, esquare, 0.4f, 0.6f, 0, 40);
        echoListAdd(list, esquare);
      }
    }
    if (parm->onlyPositive) {
      if (eval[2] < 0) {
        /* didn't have all positive eigenvalues, its outta here */
        if (parm->verbose >= 2) {
          fprintf(stderr, "%s: glyph %d/%d: not all evals %g %g %g > 0\n",
                  me, idx, numGlyphs, eval[0], eval[1], eval[2]);
        }
        continue;
      }
    }
    if (!( tdata[0] >= parm->confThresh )) {
      if (parm->verbose >= 2) {
        fprintf(stderr, "%s: glyph %d/%d: conf %g < thresh %g\n",
                me, idx, numGlyphs, tdata[0], parm->confThresh);
      }
      continue;
    }
    if (!( tenAnisoEval_f(eval, parm->anisoType) >= parm->anisoThresh )) {
      if (parm->verbose >= 2) {
        fprintf(stderr, "%s: glyph %d/%d: aniso[%d] %g < thresh %g\n",
                me, idx, numGlyphs, parm->anisoType,
                tenAnisoEval_f(eval, parm->anisoType), parm->anisoThresh);
      }
      continue;
    }
    glyphAniso = tenAnisoEval_f(eval, parm->colAnisoType);
    /*
      fprintf(stderr, "%s: eret = %d; evals = %g %g %g\n", me,
      eret, eval[0], eval[1], eval[2]);
      ELL_3V_CROSS(tmp1, evec+0, evec+3); tmp2[0] = ELL_3V_LEN(tmp1);
      ELL_3V_CROSS(tmp1, evec+0, evec+6); tmp2[1] = ELL_3V_LEN(tmp1);
      ELL_3V_CROSS(tmp1, evec+3, evec+6); tmp2[2] = ELL_3V_LEN(tmp1);
      fprintf(stderr, "%s: crosses = %g %g %g\n", me,
      tmp2[0], tmp2[1], tmp2[2]);
    */

    /* set transform (in mA) */
    ELL_3V_ABS(absEval, eval);
    ELL_4M_IDENTITY_SET(mA);                        /* reset */
    ELL_3V_SCALE(glyphScl, parm->glyphScale, absEval); /* scale by evals */
    ELL_4M_SCALE_SET(mB, glyphScl[0], glyphScl[1], glyphScl[2]);

    ell_4m_post_mul_d(mA, mB);
    ELL_43M_INSET(mB, rotEvec);                     /* rotate by evecs */
    ell_4m_post_mul_d(mA, mB);
    ELL_4M_TRANSLATE_SET(mB, pW[0], pW[1], pW[2]);  /* translate */
    ell_4m_post_mul_d(mA, mB);

    /* set color (in R,G,B) */
    cvec = evec + 3*(AIR_CLAMP(0, parm->colEvec, 2));
    R = AIR_ABS(cvec[0]);                           /* standard mapping */
    G = AIR_ABS(cvec[1]);
    B = AIR_ABS(cvec[2]);
    /* desaturate by colMaxSat */
    R = AIR_AFFINE(0.0, parm->colMaxSat, 1.0, parm->colIsoGray, R);
    G = AIR_AFFINE(0.0, parm->colMaxSat, 1.0, parm->colIsoGray, G);
    B = AIR_AFFINE(0.0, parm->colMaxSat, 1.0, parm->colIsoGray, B);
    /* desaturate some by anisotropy */
    R = AIR_AFFINE(0.0, parm->colAnisoModulate, 1.0,
                   R, AIR_AFFINE(0.0, glyphAniso, 1.0, parm->colIsoGray, R));
    G = AIR_AFFINE(0.0, parm->colAnisoModulate, 1.0,
                   G, AIR_AFFINE(0.0, glyphAniso, 1.0, parm->colIsoGray, G));
    B = AIR_AFFINE(0.0, parm->colAnisoModulate, 1.0,
                   B, AIR_AFFINE(0.0, glyphAniso, 1.0, parm->colIsoGray, B));
    /* clamp and do gamma */
    R = AIR_CLAMP(0.0, R, 1.0);
    G = AIR_CLAMP(0.0, G, 1.0);
    B = AIR_CLAMP(0.0, B, 1.0);
    R = pow(R, parm->colGamma);
    G = pow(G, parm->colGamma);
    B = pow(B, parm->colGamma);

    /* find axis, and superquad exponents qA and qB */
    if (eval[2] > 0) {
      /* all evals positive */
      cl = AIR_MIN(0.99, tenAnisoEval_f(eval, tenAniso_Cl1));
      cp = AIR_MIN(0.99, tenAnisoEval_f(eval, tenAniso_Cp1));
      if (cl > cp) {
        axis = 0;
        qA = pow(1-cp, parm->sqdSharp);
        qB = pow(1-cl, parm->sqdSharp);
      } else {
        axis = 2;
        qA = pow(1-cl, parm->sqdSharp);
        qB = pow(1-cp, parm->sqdSharp);
      }
      qC = qB;
    } else if (eval[0] < 0) {
      /* all evals negative */
      float aef[3];
      aef[0] = absEval[2];
      aef[1] = absEval[1];
      aef[2] = absEval[0];
      cl = AIR_MIN(0.99, tenAnisoEval_f(aef, tenAniso_Cl1));
      cp = AIR_MIN(0.99, tenAnisoEval_f(aef, tenAniso_Cp1));
      if (cl > cp) {
        axis = 2;
        qA = pow(1-cp, parm->sqdSharp);
        qB = pow(1-cl, parm->sqdSharp);
      } else {
        axis = 0;
        qA = pow(1-cl, parm->sqdSharp);
        qB = pow(1-cp, parm->sqdSharp);
      }
      qC = qB;
    } else {
#define OOSQRT2 0.70710678118654752440
#define OOSQRT3 0.57735026918962576451
      /* double poleA[3]={OOSQRT3, OOSQRT3, OOSQRT3}; */
      double poleB[3]={1, 0, 0};
      double poleC[3]={OOSQRT2, OOSQRT2, 0};
      double poleD[3]={OOSQRT3, -OOSQRT3, -OOSQRT3};
      double poleE[3]={OOSQRT2, 0, -OOSQRT2};
      double poleF[3]={OOSQRT3, OOSQRT3, -OOSQRT3};
      double poleG[3]={0, -OOSQRT2, -OOSQRT2};
      double poleH[3]={0, 0, -1};
      /* double poleI[3]={-OOSQRT3, -OOSQRT3, -OOSQRT3}; */
      double funk[3]={0,4,2}, thrn[3]={1,4,4};
      double octa[3]={0,2,2}, cone[3]={1,2,2};
      double evalN[3], tmp, bary[3];
      double qq[3];

      ELL_3V_NORM(evalN, eval, tmp);
      if (eval[1] >= -eval[2]) {
        /* inside B-F-C */
        ell_3v_barycentric_spherical_d(bary, poleB, poleF, poleC, evalN);
        ELL_3V_SCALE_ADD3(qq, bary[0], octa, bary[1], thrn, bary[2], cone);
        axis = 2;
      } else if (eval[0] >= -eval[2]) {
        /* inside B-D-F */
        if (eval[1] >= 0) {
          /* inside B-E-F */
          ell_3v_barycentric_spherical_d(bary, poleB, poleE, poleF, evalN);
          ELL_3V_SCALE_ADD3(qq, bary[0], octa, bary[1], funk, bary[2], thrn);
          axis = 2;
        } else {
          /* inside B-D-E */
          ell_3v_barycentric_spherical_d(bary, poleB, poleD, poleE, evalN);
          ELL_3V_SCALE_ADD3(qq, bary[0], cone, bary[1], thrn, bary[2], funk);
          axis = 0;
        }
      } else if (eval[0] < -eval[1]) {
        /* inside D-G-H */
        ell_3v_barycentric_spherical_d(bary, poleD, poleG, poleH, evalN);
        ELL_3V_SCALE_ADD3(qq, bary[0], thrn, bary[1], cone, bary[2], octa);
        axis = 0;
      } else if (eval[1] < 0) {
        /* inside E-D-H */
        ell_3v_barycentric_spherical_d(bary, poleE, poleD, poleH, evalN);
        ELL_3V_SCALE_ADD3(qq, bary[0], funk, bary[1], thrn, bary[2], octa);
        axis = 0;
      } else {
        /* inside F-E-H */
        ell_3v_barycentric_spherical_d(bary, poleF, poleE, poleH, evalN);
        ELL_3V_SCALE_ADD3(qq, bary[0], thrn, bary[1], funk, bary[2], cone);
        axis = 2;
      }
      qA = qq[0];
      qB = qq[1];
      qC = qq[2];
#undef OOSQRT2
#undef OOSQRT3
    }

    /* add the glyph */
    if (parm->verbose >= 2) {
      fprintf(stderr, "%s: glyph %d/%d: the glyph stays!\n",
              me, idx, numGlyphs);
    }
    if (glyphsLimn) {
      lookIdx = limnObjectLookAdd(glyphsLimn);
      look = glyphsLimn->look + lookIdx;
      ELL_4V_SET_TT(look->rgba, float, R, G, B, 1);
      ELL_3V_SET(look->kads, parm->ADSP[0], parm->ADSP[1], parm->ADSP[2]);
      look->spow = 0;
      switch(parm->glyphType) {
      case tenGlyphTypeBox:
        glyphIdx = limnObjectCubeAdd(glyphsLimn, lookIdx);
        break;
      case tenGlyphTypeSphere:
        glyphIdx = limnObjectPolarSphereAdd(glyphsLimn, lookIdx, axis,
                                            2*parm->facetRes, parm->facetRes);
        break;
      case tenGlyphTypeCylinder:
        glyphIdx = limnObjectCylinderAdd(glyphsLimn, lookIdx, axis,
                                         parm->facetRes);
        break;
      case tenGlyphTypeSuperquad:
      default:
        glyphIdx =
          limnObjectPolarSuperquadFancyAdd(glyphsLimn, lookIdx, axis,
                                           AIR_CAST(float, qA),
                                           AIR_CAST(float, qB),
                                           AIR_CAST(float, qC), 0,
                                           2*parm->facetRes,
                                           parm->facetRes);
        break;
      }
      ELL_4M_COPY_TT(mA_f, float, mA);
      limnObjectPartTransform(glyphsLimn, glyphIdx, mA_f);
    }
    if (glyphsEcho) {
      switch(parm->glyphType) {
      case tenGlyphTypeBox:
        eglyph = echoObjectNew(glyphsEcho, echoTypeCube);
        /* nothing else to set */
        break;
      case tenGlyphTypeSphere:
        eglyph = echoObjectNew(glyphsEcho, echoTypeSphere);
        echoSphereSet(eglyph, 0, 0, 0, 1);
        break;
      case tenGlyphTypeCylinder:
        eglyph = echoObjectNew(glyphsEcho, echoTypeCylinder);
        echoCylinderSet(eglyph, axis);
        break;
      case tenGlyphTypeSuperquad:
      default:
        eglyph = echoObjectNew(glyphsEcho, echoTypeSuperquad);
        echoSuperquadSet(eglyph, axis, qA, qB);
        break;
      }
      echoColorSet(eglyph,
                   AIR_CAST(echoCol_t, R),
                   AIR_CAST(echoCol_t, G),
                   AIR_CAST(echoCol_t, B), 1);
      echoMatterPhongSet(glyphsEcho, eglyph,
                         parm->ADSP[0], parm->ADSP[1],
                         parm->ADSP[2], parm->ADSP[3]);
      inst = echoObjectNew(glyphsEcho, echoTypeInstance);
      ELL_4M_COPY(eM, mA);
      echoInstanceSet(inst, eM, eglyph);
      echoListAdd(list, inst);
    }
  }
  if (glyphsLimn) {
    glyphsLimn->setVertexRGBAFromLook = svRGBAfl;
  }
  if (glyphsEcho) {
    split = echoListSplit3(glyphsEcho, list, 10);
    echoObjectAdd(glyphsEcho, split);
  }

  airMopOkay(mop);
  return 0;
}
void
makeSceneSimple(limnCamera *cam, echoRTParm *parm, echoScene *scene) {
  echoObject *tri, *rect, *sphere;
  Nrrd *ntext;

  ELL_3V_SET(cam->from, 5, -5, 9);
  ELL_3V_SET(cam->at,   0, 0, 0);
  ELL_3V_SET(cam->up,   0, 0, 1);
  cam->uRange[0] = -3.6;
  cam->uRange[1] = 3.6;
  cam->vRange[0] = -3.6;
  cam->vRange[1] = 3.6;

  parm->jitterType = echoJitterJitter;
  parm->numSamples = 9;
  parm->imgResU = 300;
  parm->imgResV = 300;
  parm->aperture = 0.0;
  parm->textureNN = AIR_FALSE;
  parm->renderLights = AIR_TRUE;
  parm->renderBoxes = AIR_FALSE;
  parm->seedRand = AIR_TRUE;
  parm->maxRecDepth = 10;
  ELL_3V_SET(parm->maxRecCol, 0, 0, 0);
  parm->shadow = 1.0;

  rect = echoObjectNew(scene, echoTypeRectangle);
  echoRectangleSet(rect,
                   -5, -5, -1.4,
                   10, 0, 0,
                   0, 10, 0);
  echoColorSet(rect, 1, 1, 1, 1.0);
  echoMatterPhongSet(scene, rect, 0.1, 0.5, 0.6, 50);
  if (nrrdLoad(ntext=nrrdNew(), "pot.png", NULL)) {
    /* oops, no pot */
    airFree(biffGetDone(NRRD));
    nrrdNuke(ntext);
  } else {
    echoMatterTextureSet(scene, rect, ntext);
  }
  echoObjectAdd(scene, rect);

  sphere = echoObjectNew(scene, echoTypeSphere);
  echoSphereSet(sphere, 0, 0, 0, 1.85);
  echoColorSet(sphere, 1, 1, 1, 1.0);
  echoMatterGlassSet(scene, sphere, 1.5, 0.0, 0.0, 0.0);
  echoMatterMetalSet(scene, sphere, 0.8, 0.0, 1.0, 0.15);
  echoObjectAdd(scene, sphere);

  tri = echoObjectNew(scene, echoTypeTriangle);
  echoTriangleSet(tri,
                  0.1, 0.1, 2,
                  2, 2, 2,
                  0, 2, 2);
  echoColorSet(tri, 1, 0.4, 0.4, 1.0);
  echoMatterPhongSet(scene, tri, 0.4, 0.6, 0.0, 90);
  echoObjectAdd(scene, tri);

  tri = echoObjectNew(scene, echoTypeTriangle);
  echoTriangleSet(tri,
                  -0.1, 0.1, 2,
                  -2, 2, 2,
                  -2, 0, 2);
  echoColorSet(tri, 0.4, 1.0, 0.4, 1.0);
  echoMatterPhongSet(scene, tri, 0.4, 0.6, 0.0, 90);
  echoObjectAdd(scene, tri);

  tri = echoObjectNew(scene, echoTypeTriangle);
  echoTriangleSet(tri,
                  -0.1, -0.1, 2,
                  -2, -2, 2,
                  0, -2, 2);
  echoColorSet(tri, 0.4, 0.4, 1.0, 1.0);
  echoMatterPhongSet(scene, tri, 0.4, 0.6, 0.0, 90);
  echoObjectAdd(scene, tri);

  rect = echoObjectNew(scene, echoTypeRectangle);
  echoRectangleSet(rect,
                   -0.5, -0.5, 10,
                   1.0, 0.0, 0,
                   0.0, 1.0, 0);
  echoColorSet(rect, 1, 1, 1, 1);
  echoMatterLightSet(scene, rect, 1, 0);
  echoObjectAdd(scene, rect);

  return;
}
void
makeSceneShadow(limnCamera *cam, echoRTParm *parm, echoScene *scene) {
  echoObject *sphere, *rect, *tri;

  ELL_3V_SET(cam->from, 2, 0, 20);
  ELL_3V_SET(cam->at,   0, 0, 0);
  ELL_3V_SET(cam->up,   -1, 0, 0);
  cam->uRange[0] = -1.8;
  cam->uRange[1] = 1.8;
  cam->vRange[0] = -1.8;
  cam->vRange[1] = 1.8;

  parm->jitterType = echoJitterGrid;
  parm->numSamples = 9;
  parm->imgResU = 200;
  parm->imgResV = 200;
  parm->aperture = 0.0;
  parm->renderLights = AIR_FALSE;
  parm->shadow = 0.5;

  /* create scene */
  sphere = echoObjectNew(scene, echoTypeSphere);
  echoSphereSet(sphere, 0, -1, -1, 0.2);
  echoColorSet(sphere, 0.5, 0.5, 1, 1.0);
  echoMatterPhongSet(scene, sphere, 0.1, 0.6, 0.3, 40);
  echoObjectAdd(scene, sphere);

  sphere = echoObjectNew(scene, echoTypeSphere);
  echoSphereSet(sphere, 0, 1, -1, 0.2);
  echoColorSet(sphere, 1, 0.5, 0.5, 1.0);
  echoMatterPhongSet(scene, sphere, 0.1, 0.6, 0.3, 40);
  echoObjectAdd(scene, sphere);

  sphere = echoObjectNew(scene, echoTypeSphere);
  echoSphereSet(sphere, 0, 0, 1, 0.2);
  echoColorSet(sphere, 0.5, 1, 0.5, 1.0);
  echoMatterPhongSet(scene, sphere, 0.1, 0.6, 0.3, 40);
  echoObjectAdd(scene, sphere);

  tri = echoObjectNew(scene, echoTypeTriangle);
  echoTriangleSet(tri,
                  0, -1, -1,
                  0, 1, -1,
                  0, 0, 1);
  echoColorSet(tri, 1, 1, 0, 1.0);
  echoMatterPhongSet(scene, tri, 0.1, 0.6, 0.3, 40);
  echoObjectAdd(scene, tri);
  
  rect = echoObjectNew(scene, echoTypeRectangle);
  echoRectangleSet(rect,
                   1.7, 1.7, -2,
                   -3.4, 0, 0,
                   0, -3.4, 0);
  echoColorSet(rect, 1.0, 0.8, 1.0, 1.0);
  echoMatterPhongSet(scene, rect, 0.1, 0.3, 0.7, 3000);
  echoObjectAdd(scene, rect);

  rect = echoObjectNew(scene, echoTypeRectangle);
  echoRectangleSet(rect,
                   1.0, 0.2, 4,
                   0.2, 0, 0,
                   0, 0.2, 0);
  echoColorSet(rect, 1, 1, 1, 1);
  echoMatterLightSet(scene, rect, 1, 0);
  echoObjectAdd(scene, rect);
}
void
makeSceneTexture(limnCamera *cam, echoRTParm *parm, echoScene *scene) {
  echoObject /* *trim, */ *rect, /* *inst, */ *sphere;
  Nrrd *ntext;
  
  ELL_3V_SET(cam->from, 9, 9, 11);
  ELL_3V_SET(cam->at,   0, 0, 0);
  ELL_3V_SET(cam->up,   0, 0, 1);
  cam->uRange[0] = -4;
  cam->uRange[1] = 4;
  cam->vRange[0] = -4;
  cam->vRange[1] = 4;

  parm->jitterType = echoJitterNone;
  parm->numSamples = 1;
  parm->imgResU = 300;
  parm->imgResV = 300;
  parm->aperture = 0.0;
  parm->renderLights = AIR_FALSE;
  parm->renderBoxes = AIR_FALSE;
  parm->seedRand = AIR_FALSE;
  parm->maxRecDepth = 10;
  parm->shadow = 1.0;

  rect = echoObjectNew(scene, echoTypeRectangle);
  echoRectangleSet(rect,
                   -2, -2, 0,
                   4, 0, 0,
                   0, 4, 0);
  echoColorSet(rect, 1, 1, 1, 1);
  echoMatterPhongSet(scene, rect, 0.1, 1, 0.9, 50);
  echoObjectAdd(scene, rect);

  nrrdLoad(ntext=nrrdNew(), "tmp.png", NULL);
  echoMatterTextureSet(scene, rect, ntext);

  sphere = echoObjectNew(scene, echoTypeSphere);
  echoSphereSet(sphere, 0, 0, 0, 3);
  echoColorSet(sphere, 1, 1, 1, 1);
  echoMatterPhongSet(scene, sphere, 0.1, 0.5, 0.9, 50);
  echoMatterTextureSet(scene, sphere, ntext);
  echoObjectAdd(scene, sphere);

  /*
  ELL_4M_SET_SCALE(matx, 3, 3, 3);
  trim = echoRoughSphere(80, 40, matx);
  echoMatterPhongSet(trim, 1, 1, 1, 1.0,
                     0.1, 0.5, 0.9, 50);
  echoMatterTextureSet(trim, ntext);
  echoObjectAdd(scene, trim);
  */

  rect = echoObjectNew(scene, echoTypeRectangle);
  echoRectangleSet(rect,
                   0, 0, 60,
                   0, 2, 0,
                   0, 0, 2);
  echoColorSet(rect, 1, 1, 1, 1);
  echoMatterLightSet(scene, rect, 1, 1);

  return;
}
void
makeSceneGlassMetal(limnCamera *cam, echoRTParm *parm, echoScene *scene) {
  echoObject *sphere, *rect;
  
  ELL_3V_SET(cam->from, 4, 0, 5);
  ELL_3V_SET(cam->at,   0, 0, 0);
  ELL_3V_SET(cam->up,   -1, 0, 0);
  cam->uRange[0] = -0.7;
  cam->uRange[1] = 0.7;
  cam->vRange[0] = -0.0;
  cam->vRange[1] = 1.4;

  parm->jitterType = echoJitterJitter;
  parm->numSamples = 36;
  parm->imgResU = 220;
  parm->imgResV = 220;
  parm->aperture = 0.0;
  parm->renderLights = AIR_FALSE;
  parm->seedRand = AIR_FALSE;
  ELL_3V_SET(scene->bkgr, 0.2, 0.3, 0.4);

  /* create scene */
  sphere = echoObjectNew(scene, echoTypeSphere);
  echoSphereSet(sphere, 0.70, -0.3, -0.4, 0.1);
  echoColorSet(sphere, 1, 0, 0, 1.0);
  echoMatterPhongSet(scene, sphere, 0.1, 0.6, 0.3, 40);
  echoObjectAdd(scene, sphere);

  sphere = echoObjectNew(scene, echoTypeSphere);
  echoSphereSet(sphere, 0.66, 0.0, -0.4, 0.1);
  echoColorSet(sphere, 0, 1, 0, 1.0);
  echoMatterGlassSet(scene, sphere, 1.0, 0, 1.0, 0.0);
  echoMatterPhongSet(scene, sphere, 0.1, 0.6, 0.3, 40);
  echoObjectAdd(scene, sphere);

  sphere = echoObjectNew(scene, echoTypeSphere);
  echoSphereSet(sphere, 0.62, 0.3, -0.4, 0.1);
  echoColorSet(sphere, 0, 0, 1, 1.0);
  echoMatterPhongSet(scene, sphere, 0.1, 0.6, 0.3, 40);
  echoObjectAdd(scene, sphere);

  rect = echoObjectNew(scene, echoTypeRectangle);
  echoRectangleSet(rect,
                   0.5, 0.5, 0.5,
                   0, -1, 0,
                   0, 0, -1);
  echoColorSet(rect, 1.0, 1.0, 1.0, 1.0);
  echoMatterMetalSet(scene, rect, 0.7, 0.0, 0.0, 0.2);
  echoObjectAdd(scene, rect);

  rect = echoObjectNew(scene, echoTypeRectangle);
  echoRectangleSet(rect,
                   -1.5, -1.5, -1,
                   3, 0, 0,
                   0, 3, 0);
  echoColorSet(rect, 1.0, 1.0, 1.0, 1.0);
  echoMatterPhongSet(scene, rect, 0.1, 0.6, 0.3, 40);
  echoObjectAdd(scene, rect);

  rect = echoObjectNew(scene, echoTypeRectangle);
  echoRectangleSet(rect,
                   0.5-0.2, -0.2, 40,
                   0.4, 0, 0,
                   0, 0.4, 0);
  echoColorSet(rect, 1, 1, 1, 1);
  echoMatterLightSet(scene, rect, 1, 0);

  return;
}
void
makeSceneGlassTest(limnCamera *cam, echoRTParm *parm, echoScene *scene) {
  echoObject *cube, *rect, *inst;
  echoCol_t r, g, b;
  Nrrd *ntext;
  int i, N;
  echoPos_t ma[16], mb[16];

  ELL_3V_SET(cam->from, 0, 0, 10);
  ELL_3V_SET(cam->at,   0, 0, 0);
  ELL_3V_SET(cam->up,   1, 0, 0);
  cam->uRange[0] = -1.1;
  cam->uRange[1] = 1.1;
  cam->vRange[0] = -1.1;
  cam->vRange[1] = 1.1;

  parm->jitterType = echoJitterNone;
  parm->numSamples = 1;
  parm->imgResU = 220;
  parm->imgResV = 220;
  parm->aperture = 0.0;
  parm->renderLights = AIR_FALSE;
  parm->seedRand = AIR_FALSE;
  ELL_3V_SET(scene->bkgr, 0.2, 0.3, 0.4);
  /* parm->shadow = 0.0; */

  /* create scene */
  N = 11;
  for (i=0; i<N; i++) {
    cube = echoObjectNew(scene, echoTypeCube);
    _dyeHSVtoRGB(&r, &g, &b, AIR_AFFINE(0, i, N, 0.0, 1.0), 1.0, 1.0);
    echoColorSet(cube, r, g, b, 1);
    echoMatterGlassSet(scene, cube, 1.1, 0.0, 0.0, 0);
    inst = echoObjectNew(scene, echoTypeInstance);
    ELL_4M_IDENTITY_SET(ma);
    ELL_4M_SCALE_SET(mb, 1.0/(N+2), 0.8, 3.0/(N+2));
    ell_4m_POST_MUL(ma, mb);
    ELL_4M_ROTATE_X_SET(mb, AIR_AFFINE(0, i, N-1, -AIR_PI/2, AIR_PI/2));
    ell_4m_POST_MUL(ma, mb);
    ELL_4M_TRANSLATE_SET(mb, AIR_AFFINE(0, i, N-1, -0.8, 0.8), 0, 1);
    ell_4m_POST_MUL(ma, mb);
    echoInstanceSet(inst, ma, cube);
    echoObjectAdd(scene, inst);
  }

  rect = echoObjectNew(scene, echoTypeRectangle);
  echoRectangleSet(rect,
                   -1, 1, 0,
                   0, -2, 0,
                   2, 0, 0);
  echoColorSet(rect, 1.0, 1.0, 1.0, 1.0);
  echoMatterPhongSet(scene, rect, 1.0, 0.0, 0.0, 40);
  nrrdLoad(ntext=nrrdNew(), "pot.png", NULL);
  echoMatterTextureSet(scene, rect, ntext);
  echoObjectAdd(scene, rect);

  rect = echoObjectNew(scene, echoTypeRectangle);
  echoRectangleSet(rect,
                   -0.25, -0.25, 10,
                   0.5, 0, 0,
                   0, 0.5, 0);
  echoColorSet(rect, 1, 1, 1, 1);
  echoMatterLightSet(scene, rect, 1, 0);

  return;
}
void
makeSceneInstance(limnCamera *cam, echoRTParm *parm, echoScene *scene) {
  echoObject *trim, *rect, *inst;
  echoPos_t matx[16], A[16], B[16];
  
  ELL_3V_SET(cam->from, 9*1.3, 9*1.3, 11*1.3);
  ELL_3V_SET(cam->at,   0, 0, 0);
  ELL_3V_SET(cam->up,   0, 0, 1);
  cam->uRange[0] = -5;
  cam->uRange[1] = 5;
  cam->vRange[0] = -5;
  cam->vRange[1] = 5;

  parm->jitterType = echoJitterNone;
  parm->numSamples = 1;
  parm->imgResU = 300;
  parm->imgResV = 300;
  parm->aperture = 0.0;
  parm->renderLights = AIR_TRUE;
  parm->renderBoxes = AIR_FALSE;
  parm->seedRand = AIR_FALSE;
  parm->maxRecDepth = 10;
  parm->shadow = 1.0;
  
  ELL_4M_IDENTITY_SET(matx);
  ELL_4M_SCALE_SET(B, 2.5, 1.5, 0.8);
  ELL_4M_MUL(A, B, matx); ELL_4M_COPY(matx, A);
  ELL_4M_ROTATE_X_SET(B, 0.2);
  ELL_4M_MUL(A, B, matx); ELL_4M_COPY(matx, A);
  ELL_4M_ROTATE_Y_SET(B, 0.2);
  ELL_4M_MUL(A, B, matx); ELL_4M_COPY(matx, A);
  ELL_4M_ROTATE_Y_SET(B, 0.2);
  ELL_4M_MUL(A, B, matx); ELL_4M_COPY(matx, A);
  ELL_4M_TRANSLATE_SET(B, 0, 0, 1);
  ELL_4M_MUL(A, B, matx); ELL_4M_COPY(matx, A);


  /* trim = echoRoughSphere(50, 25, matx); */
  /*
  trim = echoRoughSphere(8, 4, matx);
  echoMatterGlassSet(trim, 0.8, 0.8, 0.8,
                     1.3, 0.0, 0.0);
  echoMatterPhongSet(trim, 1, 1, 1, 1.0,
                     0.1, 0.5, 0.9, 50);
  echoObjectAdd(scene, trim);
  */

  trim = echoObjectNew(scene, echoTypeSphere);
  echoSphereSet(trim, 0, 0, 0, 1);
  echoColorSet(trim, 0.8, 0.8, 0.8, 1.0);
  echoMatterGlassSet(scene, trim, 1.3, 0.0, 0.0, 0.0);
  echoMatterPhongSet(scene, trim, 0.1, 0.5, 0.9, 50);
  inst = echoObjectNew(scene, echoTypeInstance);
  echoInstanceSet(inst, matx, trim);
  echoObjectAdd(scene, inst);

  rect = echoObjectNew(scene, echoTypeRectangle);
  echoRectangleSet(rect,
                         -3.5, -3.5, -3.5,
                         7, 0, 0,
                         0, 7, 0);
  echoColorSet(trim, 1.0, 1.0, 1.0, 1.0);
  echoMatterPhongSet(scene, rect, 0.1, 0.5, 0.9, 50);
  echoObjectAdd(scene, rect);
  rect = echoObjectNew(scene, echoTypeRectangle);
  echoRectangleSet(rect,
                         -3.5, -3.5, -3.5,
                         0, 7, 0,
                         0, 0, 7);
  echoColorSet(rect, 1.0, 1.0, 1.0, 1.0);
  echoMatterPhongSet(scene, rect, 0.1, 0.5, 0.9, 50);
  echoObjectAdd(scene, rect);
  /*
  rect = echoObjectNew(scene, echoTypeRectangle);
  echoRectangleSet(rect,
                         -3.5, -3.5, -3.5,
                         0, 0, 7,
                         7, 0, 0);
  */
  rect = echoObjectNew(scene, echoTypeSphere);
  echoSphereSet(rect, 0, 0, 0, 1);
  echoColorSet(rect, 1.0, 1.0, 1.0, 1.0);
  echoMatterPhongSet(scene, rect, 0.1, 0.5, 0.9, 50);
  inst = echoObjectNew(scene, echoTypeInstance);
  ELL_4M_SCALE_SET(A, 20, 20, 20);
  ELL_4M_TRANSLATE_SET(B, 0, -(20+3.5), 0);
  ELL_4M_MUL(matx, B, A);
  echoInstanceSet(inst, matx, rect);
  echoObjectAdd(scene, inst);
  

  /*
  light = echoLightNew(echoLightDirectional);
  echoLightDirectionalSet(light, 1, 0, 0, 1, 0.001, 0.001);
  echoLightArrayAdd(lightArr, light);
  light = echoLightNew(echoLightDirectional);
  echoLightDirectionalSet(light, 0, 1, 0, 0.001, 1, 0.001);
  echoLightArrayAdd(lightArr, light);
  light = echoLightNew(echoLightDirectional);
  echoLightDirectionalSet(light, 0, 0, 1, 0.001, 0.001, 1);
  echoLightArrayAdd(lightArr, light);
  */

  return;
}