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glk |
1609 |
/*! \file bmark-teem.c
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*
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* Gordon Kindlmann
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*/
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#if 1
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# define REAL float
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# define ATAN2 atan2f
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# define SQRT sqrtf
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#else
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# define REAL double
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# define ATAN2 atan2
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# define SQRT sqrt
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#endif
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#define ELL_3M_FROBSQRD(m) \
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(ELL_3V_DOT((m)+0, (m)+0) + \
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ELL_3V_DOT((m)+3, (m)+3) + \
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ELL_3V_DOT((m)+6, (m)+6))
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#include <stdio.h>
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#include <math.h>
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#include <stdbool.h>
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#include "teem/nrrd.h"
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#include "teem/gage.h"
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#include "teem-defs.h"
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STATIC_INLINE double dot3(double vec1[3], double vec2[3])
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{
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return (vec1[0] * vec2[0] + vec1[1] * vec2[1] + vec1[2] * vec2[2]);
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}
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STATIC_INLINE double mag3(double vec[3])
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{
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return sqrt(dot3(vec, vec));
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}
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STATIC_INLINE void norm3(double vec[3], double res[3])
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{
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double mag = mag3(vec);
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res[0] = vec[0] / mag;
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res[1] = vec[1] / mag;
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res[2] = vec[2] / mag;
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}
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STATIC_INLINE void add3(double vec1[3], double vec2[3], double res[3])
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{
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res[0] = vec1[0] + vec2[0];
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res[1] = vec1[1] + vec2[1];
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res[2] = vec1[2] + vec2[2];
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}
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STATIC_INLINE void sub3(double vec1[3], double vec2[3], double res[3])
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{
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res[0] = vec1[0] - vec2[0];
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res[1] = vec1[1] - vec2[1];
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res[2] = vec1[2] - vec2[2];
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}
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// Note res cannot be vec1 or vec2
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STATIC_INLINE void cross(double vec1[3], double vec2[3], double res[3])
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{
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res[0] = vec1[1] * vec2[2] - vec1[2] * vec2[1];
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res[1] = vec1[2] * vec2[0] - vec1[0] * vec2[2];
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res[2] = vec1[0] * vec2[1] - vec1[1] * vec2[0];
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}
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STATIC_INLINE void scale_vec3(double scl, double vec[3], double res[3])
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{
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res[0] = scl * vec[0];
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res[1] = scl * vec[1];
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res[2] = scl * vec[2];
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}
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STATIC_INLINE bool inside(REAL pos[3])
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{
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// XXX - Hack specific to ../../data/vfrhand-nohip.nhdr"
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// but for some reason still not matching what Diderot says
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if(pos[0] < 2*0.9375 || pos[0] > (176-3)*0.9375) return false;
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if(pos[1] < 2*0.9375 || pos[1] > (187-3)*0.9375) return false;
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if(pos[2] < 2.0 || pos[2] > (190-3)) return false;
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return true;
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}
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STATIC_INLINE double lerp(double out_min, double out_max, double in_min, double in, double in_max)
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{
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return (out_min * (in_max - in) + out_max * (in - in_min)) / (in_max - in_min);
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}
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STATIC_INLINE unsigned char ulerp(double in_min, double in, double in_max)
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{
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return (unsigned char)((0.0f * (in_max - in) + 255.0f * (in - in_min)) / (in_max - in_min));
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}
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STATIC_INLINE REAL
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alpha(float *data, REAL val, REAL gmag) {
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unsigned int vi, gi;
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REAL vv, gg, vf, gf;
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/* XXX HEY HACK */
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vv = val/7.8431372549019605 + 3;
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gg = gmag/3.5294117647058822 + 3;
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vi = vv; vf = vv - vi;
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gi = gg; gf = gg - gi;
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return (data[vi+0 + 262*(gi+0)]*(1-vf)*(1-gf) +
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data[vi+1 + 262*(gi+0)]*vf*(1-gf) +
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data[vi+0 + 262*(gi+1)]*(1-vf)*gf +
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data[vi+1 + 262*(gi+1)]*vf*gf);
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}
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STATIC_INLINE REAL
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shade(float *data, REAL val) {
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unsigned int vi;
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REAL vv, vf;
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/* XXX HEY HACK */
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vv = val/0.010050251256281407 + 103;
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vi = vv; vf = vv - vi;
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return (data[vi]*(1-vf) + data[vi+1]*vf);
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}
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STATIC_INLINE REAL
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silho(float *data, REAL val) {
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unsigned int vi;
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REAL vv, vf;
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/* XXX HEY HACK */
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vv = val/0.010050251256281407 + 3;
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vi = vv; vf = vv - vi;
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return (data[vi]*(1-vf) + data[vi+1]*vf);
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}
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STATIC_INLINE REAL
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rival(float *data, REAL rad, REAL the) {
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unsigned int ri, ti;
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REAL rr, tt, rf, tf;
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/* XXX HEY HACK */
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rr = rad/0.0050251256281407036 + 3;
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tt = (the + 3.0*AIR_PI/4.0)/0.015786894472361809 + 3;
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ri = rr; rf = rr - ri;
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ti = tt; tf = tt - ti;
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return (data[ri+0 + 206*(ti+0)]*(1-rf)*(1-tf) +
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data[ri+1 + 206*(ti+0)]*rf*(1-tf) +
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data[ri+0 + 206*(ti+1)]*(1-rf)*tf +
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data[ri+1 + 206*(ti+1)]*rf*tf);
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}
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STATIC_INLINE void
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depth(float *data, REAL rgb[3], REAL dep) {
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unsigned int di;
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REAL dd, df;
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/* XXX HEY HACK */
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dd = dep/0.0050251256281407036 + 3;
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di = dd; df = dd - di;
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ELL_3V_SCALE_ADD2(rgb,
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1-df, data + 3*di,
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df, data + 3*(di+1));
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}
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int main (int argc, const char *argv[])
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{
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const char *me = argv[0];
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char *inFile = "../../data/vfrhand-nohip-smooth.nrrd",
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*alphaFile = "../../data/txf/alpha-bone.nrrd",
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*shadeFile = "../../data/txf/shade.nrrd",
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*silhoFile = "../../data/txf/silho.nrrd",
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*rivalFile = "../../data/txf/ridgvall.nrrd",
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*depthFile = "../../data/txf/depth.nrrd";
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float *alphaData = NULL, *shadeData = NULL, *silhoData = NULL,
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*rivalData = NULL, *depthData = NULL;
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char *outfile = "bmark-teem.nrrd";
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double camEye[3] = {127.331, -1322.05, 272.53};
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double camAt[3] = {63.0, 82.6536, 98.0};
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double camUp[3] = {0.9987, 0.0459166, -0.0221267};
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double camNear = -78.0;
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double camFar = 78.0;
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double camFOV = 5.0;
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int imgResU = 640;
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int imgResV = 480;
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double rayStep = 0.15;
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/*
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int imgResU = 480;
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int imgResV = 360;
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double rayStep = 1;
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*/
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double temp[3];
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double temp2[3];
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double temp3[3];
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sub3(camAt, camEye, temp);
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double camDist = mag3( temp );
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double camVspNear = camDist + camNear;
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double camVspFar = camDist + camFar;
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double camN[3];
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norm3(temp, camN);
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double camU[3];
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cross(camN, camUp, temp);
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norm3(temp, camU);
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double camV[3];
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cross(camN, camU, camV);
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double camVmax = tan(camFOV*AIR_PI/360.0)*camDist;
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double camUmax = camVmax*(double)(imgResU)/(double)(imgResV);
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double lightVspDir[3] = {-2.0, -3.0, -2.0};
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scale_vec3(lightVspDir[0], camU, temp);
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scale_vec3(lightVspDir[1], camV, temp2);
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add3(temp, temp2, temp);
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scale_vec3(lightVspDir[2], camN, temp2);
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add3(temp, temp2, temp);
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double lightDir[3];
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norm3(temp, lightDir);
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double phongKa = 0.05;
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double phongKd = 0.80;
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double phongKs = 0.20;
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| 219 : |
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double phongSp = 50.0;
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#define sthick 0.4
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double refStep = 1.5;
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// Read in the data
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char* err;
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| 225 : |
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Nrrd *nin, *nalpha, *nshade, *nsilho, *nrival, *ndepth;
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| 226 : |
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int status;
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| 227 : |
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airArray *mop;
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| 228 : |
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mop = airMopNew();
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nin = nrrdNew();
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airMopAdd(mop, nin, (airMopper)nrrdNuke, airMopAlways);
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nalpha = nrrdNew();
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airMopAdd(mop, nalpha, (airMopper)nrrdNuke, airMopAlways);
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nshade = nrrdNew();
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airMopAdd(mop, nshade, (airMopper)nrrdNuke, airMopAlways);
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| 236 : |
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nsilho = nrrdNew();
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| 237 : |
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airMopAdd(mop, nsilho, (airMopper)nrrdNuke, airMopAlways);
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| 238 : |
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nrival = nrrdNew();
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| 239 : |
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airMopAdd(mop, nrival, (airMopper)nrrdNuke, airMopAlways);
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ndepth = nrrdNew();
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| 241 : |
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airMopAdd(mop, ndepth, (airMopper)nrrdNuke, airMopAlways);
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| 242 : |
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if (nrrdLoad(nin, inFile, NULL)
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| 244 : |
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|| nrrdLoad(nalpha, alphaFile, NULL)
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| 245 : |
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|| nrrdLoad(nshade, shadeFile, NULL)
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| 246 : |
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|| nrrdLoad(nsilho, silhoFile, NULL)
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| 247 : |
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|| nrrdLoad(nrival, rivalFile, NULL)
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| 248 : |
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|| nrrdLoad(ndepth, depthFile, NULL)) {
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| 249 : |
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airMopAdd(mop, err = biffGetDone(NRRD), airFree, airMopAlways);
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| 250 : |
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fprintf(stderr, "%s: Trouble reading:\n%s", me, err);
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| 251 : |
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airMopError(mop);
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| 252 : |
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return -1;
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| 253 : |
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}
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| 254 : |
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alphaData = AIR_CAST(float *, nalpha->data); // XXX HEY HACK
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| 255 : |
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shadeData = AIR_CAST(float *, nshade->data); // XXX HEY HACK
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| 256 : |
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silhoData = AIR_CAST(float *, nsilho->data); // XXX HEY HACK
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| 257 : |
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rivalData = AIR_CAST(float *, nrival->data); // XXX HEY HACK
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| 258 : |
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depthData = AIR_CAST(float *, ndepth->data); // XXX HEY HACK
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| 259 : |
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| 260 : |
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gageContext *ctx;
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| 261 : |
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gagePerVolume *pvl;
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| 262 : |
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const double *valP, *gradP, *hessP;
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| 263 : |
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double kparm[NRRD_KERNEL_PARMS_NUM] = {0.0};
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| 264 : |
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| 265 : |
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ctx = gageContextNew();
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| 266 : |
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airMopAdd(mop, ctx, (airMopper)gageContextNix, airMopAlways);
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| 267 : |
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if (!( pvl = gagePerVolumeNew(ctx, nin, gageKindScl) )) {
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| 268 : |
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airMopAdd(mop, err = biffGetDone(GAGE), airFree, airMopAlways);
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| 269 : |
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fprintf(stderr, "%s: couldn't create gage context:\n%s", me, err);
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| 270 : |
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airMopError(mop);
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| 271 : |
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return -1;
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| 272 : |
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}
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| 273 : |
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if (gagePerVolumeAttach(ctx, pvl)
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| 274 : |
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|| gageKernelSet(ctx, gageKernel00, nrrdKernelBSpline3, kparm)
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| 275 : |
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|| gageKernelSet(ctx, gageKernel11, nrrdKernelBSpline3D, kparm)
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| 276 : |
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|| gageKernelSet(ctx, gageKernel22, nrrdKernelBSpline3DD, kparm)
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| 277 : |
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|| gageQueryItemOn(ctx, pvl, gageSclValue)
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| 278 : |
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|| gageQueryItemOn(ctx, pvl, gageSclGradVec)
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| 279 : |
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|| gageQueryItemOn(ctx, pvl, gageSclHessian)
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| 280 : |
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|| gageUpdate(ctx)) {
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| 281 : |
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airMopAdd(mop, err = biffGetDone(GAGE), airFree, airMopAlways);
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| 282 : |
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fprintf(stderr, "%s: Trouble setting up gage context:\n%s", me, err);
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| 283 : |
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airMopError(mop);
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| 284 : |
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return -1;
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| 285 : |
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}
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| 286 : |
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| 287 : |
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if (!( (valP = gageAnswerPointer(ctx, pvl, gageSclValue))
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| 288 : |
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&& (gradP = gageAnswerPointer(ctx, pvl, gageSclGradVec))
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| 289 : |
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&& (hessP = gageAnswerPointer(ctx, pvl, gageSclHessian)) )) {
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| 290 : |
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fprintf(stderr, "%s: Trouble getting answer pointer\n", me);
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| 291 : |
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airMopError(mop);
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| 292 : |
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return -1;
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| 293 : |
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}
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| 294 : |
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| 295 : |
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int ui, vi;
|
| 296 : |
|
|
REAL rayU, rayV, rayN;
|
| 297 : |
|
|
REAL rayVec[3];
|
| 298 : |
|
|
REAL vv[3];
|
| 299 : |
|
|
REAL rayPos[3];
|
| 300 : |
|
|
REAL rayTransp, rayRGB[3];
|
| 301 : |
|
|
REAL norm[3];
|
| 302 : |
|
|
REAL ld;
|
| 303 : |
|
|
REAL hd;
|
| 304 : |
|
|
REAL mat;
|
| 305 : |
|
|
|
| 306 : |
|
|
// allocate output image
|
| 307 : |
|
|
Nrrd *nimg = nrrdNew();
|
| 308 : |
|
|
airMopAdd(mop, nimg, (airMopper)nrrdNuke, airMopAlways);
|
| 309 : |
|
|
if (nrrdAlloc_va(nimg, nrrdTypeDouble, 3,
|
| 310 : |
|
|
AIR_CAST(size_t, 4),
|
| 311 : |
|
|
AIR_CAST(size_t, imgResU),
|
| 312 : |
|
|
AIR_CAST(size_t, imgResV))) {
|
| 313 : |
|
|
airMopAdd(mop, err = biffGetDone(NRRD), airFree, airMopAlways);
|
| 314 : |
|
|
fprintf(stderr, "%s: Trouble allocating image output:\n%s", me, err);
|
| 315 : |
|
|
airMopError(mop);
|
| 316 : |
|
|
return -1;
|
| 317 : |
|
|
}
|
| 318 : |
|
|
double *out_data = AIR_CAST(double *, nimg->data);
|
| 319 : |
|
|
/*
|
| 320 : |
|
|
fprintf(stderr, "%s: hit return\n", me);
|
| 321 : |
|
|
fgetc(stdin);
|
| 322 : |
|
|
fprintf(stderr, "%s: here we go\n", me);
|
| 323 : |
|
|
*/
|
| 324 : |
|
|
double t0 = airTime(); // start timing
|
| 325 : |
|
|
for (vi = 0; vi < imgResV; vi++) {
|
| 326 : |
|
|
rayV = lerp(-camVmax, camVmax, -0.5, (double)(vi), (double)(imgResV) - 0.5);
|
| 327 : |
|
|
for (ui = 0; ui < imgResU; ui++) {
|
| 328 : |
|
|
REAL len;
|
| 329 : |
|
|
rayU = lerp(-camUmax, camUmax, -0.5, (double)(ui), (double)(imgResU) - 0.5);
|
| 330 : |
|
|
ELL_3V_SCALE_ADD3(rayVec, 1.0, camN, rayU/camDist, camU, rayV/camDist, camV);
|
| 331 : |
|
|
ELL_3V_SCALE(vv, -1, rayVec);
|
| 332 : |
|
|
ELL_3V_NORM(vv, vv, len);
|
| 333 : |
|
|
rayTransp = 1;
|
| 334 : |
|
|
ELL_3V_SET(rayRGB, 0, 0, 0);
|
| 335 : |
|
|
|
| 336 : |
|
|
for (rayN = camVspNear; rayN <= camVspFar; rayN += rayStep) {
|
| 337 : |
|
|
ELL_3V_SCALE_ADD2(rayPos, 1.0, camEye, rayN, rayVec);
|
| 338 : |
|
|
|
| 339 : |
|
|
if (inside(rayPos)) {
|
| 340 : |
|
|
if (gageProbeSpace(ctx, rayPos[0], rayPos[1], rayPos[2],
|
| 341 : |
|
|
AIR_FALSE /* index space */, AIR_TRUE /* clamp */)) {
|
| 342 : |
|
|
fprintf(stderr, "%s: Trouble with gageProbe:\n%s", me, ctx->errStr);
|
| 343 : |
|
|
airMopError(mop); return -1;
|
| 344 : |
|
|
}
|
| 345 : |
|
|
REAL gmag = ELL_3V_LEN(gradP);
|
| 346 : |
|
|
REAL aa = alpha(alphaData, AIR_CLAMP(0, *valP, 2000), AIR_CLAMP(0, gmag, 900));
|
| 347 : |
|
|
REAL matRGB[3];
|
| 348 : |
|
|
if (aa > 0.0) {
|
| 349 : |
|
|
REAL norm[3], gray, gten[9], proj[9], matA[9], matB[9];
|
| 350 : |
|
|
ELL_3V_SCALE(norm, -1.0/gmag, gradP);
|
| 351 : |
|
|
aa = 1.0 - pow(1.0-aa, rayStep/refStep);
|
| 352 : |
|
|
gray = shade(shadeData, ELL_3V_DOT(norm, lightDir));
|
| 353 : |
|
|
ELL_3MV_OUTER(matA, norm, norm);
|
| 354 : |
|
|
ELL_3M_SCALE(proj, -1, matA);
|
| 355 : |
|
|
proj[0] += 1; proj[4] += 1; proj[8] += 1;
|
| 356 : |
|
|
|
| 357 : |
|
|
ELL_3M_MUL(matB, hessP, proj);
|
| 358 : |
|
|
ELL_3M_MUL(gten, proj, matB);
|
| 359 : |
|
|
ELL_3M_SCALE(gten, -1.0/gmag, gten);
|
| 360 : |
|
|
REAL kv = ELL_3MV_CONTR(gten, vv)/ELL_3MV_CONTR(proj, vv);
|
| 361 : |
|
|
kv = AIR_CLAMP(0.0, kv, 1.0/sthick);
|
| 362 : |
|
|
REAL vdn = ELL_3V_DOT(vv, norm);
|
| 363 : |
|
|
vdn = vdn*(1.0 + 2.0*vdn*vdn);
|
| 364 : |
|
|
REAL tmp = sthick*(kv - 1.0/sthick);
|
| 365 : |
|
|
REAL sarg = vdn*vdn + tmp*tmp;
|
| 366 : |
|
|
gray *= silho(silhoData, AIR_CLAMP(0, sarg, 2));
|
| 367 : |
|
|
|
| 368 : |
|
|
REAL gtns = ELL_3M_FROBSQRD(gten);
|
| 369 : |
|
|
REAL gttr = ELL_3M_TRACE(gten);
|
| 370 : |
|
|
REAL disc = SQRT(2.0*gtns - gttr*gttr);
|
| 371 : |
|
|
REAL k1 = (gttr + disc)/2.0;
|
| 372 : |
|
|
REAL k2 = (gttr - disc)/2.0;
|
| 373 : |
|
|
tmp = SQRT(gtns);
|
| 374 : |
|
|
gray *= rival(rivalData, AIR_MIN(0.55, tmp)/0.55, ATAN2(k2,k1));
|
| 375 : |
|
|
|
| 376 : |
|
|
depth(depthData, matRGB, lerp(0.0, 1.0, camVspNear, rayN, camVspFar));
|
| 377 : |
|
|
|
| 378 : |
|
|
ELL_3V_SCALE_INCR(rayRGB, rayTransp*aa*gray, matRGB);
|
| 379 : |
|
|
rayTransp *= 1 - aa;
|
| 380 : |
|
|
}
|
| 381 : |
|
|
}
|
| 382 : |
|
|
if (rayTransp < 0.01) {
|
| 383 : |
|
|
rayTransp = 0;
|
| 384 : |
|
|
break;
|
| 385 : |
|
|
}
|
| 386 : |
|
|
}
|
| 387 : |
|
|
|
| 388 : |
|
|
ELL_4V_SET(out_data + 4*(ui + imgResU*vi),
|
| 389 : |
|
|
0.9*rayRGB[0], 0.9*rayRGB[1], 0.9*rayRGB[2], 1.0-rayTransp);
|
| 390 : |
|
|
|
| 391 : |
|
|
}
|
| 392 : |
|
|
}
|
| 393 : |
|
|
|
| 394 : |
|
|
double totalTime = airTime() - t0;
|
| 395 : |
|
|
printf("usr=%f\n", totalTime);
|
| 396 : |
|
|
|
| 397 : |
|
|
if (nrrdSave(outfile, nimg, NULL)) {
|
| 398 : |
|
|
airMopAdd(mop, err = biffGetDone(NRRD), airFree, airMopAlways);
|
| 399 : |
|
|
fprintf(stderr, "%s: Trouble writing output:\n%s", me, err);
|
| 400 : |
|
|
airMopError(mop);
|
| 401 : |
|
|
return -1;
|
| 402 : |
|
|
}
|
| 403 : |
|
|
|
| 404 : |
|
|
airMopOkay(mop);
|
| 405 : |
|
|
return 0;
|
| 406 : |
|
|
|
| 407 : |
|
|
}
|
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| 
Revision Log
