From e2a154ddefd961a79437cdac79fb5e46cda4a855 Mon Sep 17 00:00:00 2001 From: Thomas White Date: Thu, 24 Jun 2010 16:48:32 +0200 Subject: Move POV-ray stuff to a new file --- src/povray.c | 281 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 281 insertions(+) create mode 100644 src/povray.c (limited to 'src/povray.c') diff --git a/src/povray.c b/src/povray.c new file mode 100644 index 00000000..69e5b3cc --- /dev/null +++ b/src/povray.c @@ -0,0 +1,281 @@ +/* + * povray.c + * + * Invoke POV-ray + * + * (c) 2006-2010 Thomas White + * + * Part of CrystFEL - crystallography with a FEL + * + */ + + +#ifdef HAVE_CONFIG_H +#include +#endif + + +#include +#include +#include + +#include "cell.h" +#include "utils.h" + + +#define MAX_PROC (256) + + +int povray_render_animation(UnitCell *cell, double *ref, + unsigned int *c, unsigned int nproc) +{ + FILE *fh; + double asx, asy, asz; + double bsx, bsy, bsz; + double csx, csy, csz; + pid_t pids[MAX_PROC]; + float max; + int i; + signed int h, k, l; + + if ( (nproc > MAX_PROC) || (nproc < 1) ) { + ERROR("Number of processes must be a number between 1 and %i\n", + MAX_PROC); + return 1; + } + + fh = fopen("render.pov", "w"); + fprintf(fh, "/* POV-Ray scene written by CrystFEL */\n\n"); + fprintf(fh, "#include \"colors.inc\"\n"); + fprintf(fh, "#include \"textures.inc\"\n\n"); + fprintf(fh, "global_settings {\n"); + fprintf(fh, " assumed_gamma 1.0\n"); + fprintf(fh, " ambient_light 5.0\n"); + fprintf(fh, "}\n\n"); + + /* First quarter */ + fprintf(fh, "#if ( (clock >= 0) & (clock <= 124) )\n"); + fprintf(fh, "camera { location <0.0, -3.0, 0.0>" + " sky z direction 1.1*y\n" + " right -x*(image_width/image_height)\n" + " look_at <0.0, 0.0, 0.0> }\n\n"); + fprintf(fh, "#end\n"); + + /* Second quarter */ + fprintf(fh, "#if ( (clock >= 125) & (clock <= 249) )\n"); + fprintf(fh, "camera { location <0.0," + " -(2.0+cos(radians((clock-125)*(180/125)))), 0.0>" + " sky z direction 1.1*y\n" + " right -x*(image_width/image_height)\n" + " look_at <0.0, 0.0, 0.0> }\n\n"); + fprintf(fh, "#end\n"); + + /* Third quarter */ + fprintf(fh, "#if ( (clock >= 250) & (clock <= 374) )\n"); + fprintf(fh, "camera { location <0.0, -1.0, 0.0>" + " sky z direction 1.1*y\n" + " right -x*(image_width/image_height)\n" + " look_at <0.0, 0.0, 0.0> }\n\n"); + fprintf(fh, "#end\n"); + + /* Fourth quarter */ + fprintf(fh, "#if ( (clock >= 375) & (clock <= 500) )\n"); + fprintf(fh, "camera { location <0.0," + " -(2.0+cos(radians((clock-375)*(180/125)+180))), 0.0>" + " sky z direction 1.1*y\n" + " right -x*(image_width/image_height)\n" + " look_at <0.0, 0.0, 0.0> }\n\n"); + fprintf(fh, "#end\n"); + + fprintf(fh, "light_source { <-3.0 -3.0 3.0> White }\n"); + fprintf(fh, "light_source { <+3.0 -3.0 3.0> White }\n"); + fprintf(fh, "light_source { <0.0, -3.0, 0.0> 2*White }\n"); + fprintf(fh, "plane {z,-2.0 pigment { rgb <0.0, 0.0, 0.1> } }\n"); + fprintf(fh, "plane {-z,-2.0 pigment { rgb <0.0, 0.0, 0.05> } }\n\n"); + + cell_get_reciprocal(cell, &asx, &asy, &asz, + &bsx, &bsy, &bsz, + &csx, &csy, &csz); + + fprintf(fh, "#declare WCA = (720/19);\n"); + fprintf(fh, "#declare WCL = (360/8.5);\n"); + fprintf(fh, "#declare TA = (4.875);\n"); + fprintf(fh, "#declare TB = (1.125);\n"); + + fprintf(fh, "#declare TRANS = \n"); + fprintf(fh, "transform {\n"); + + /* First half */ + + /* Acceleration */ + fprintf(fh, "#if ( clock <= 24 )\n" + "rotate <0, 0, 0.5*WCA*(clock/25)*(clock/25)>\n" + "#end\n" + + /* Cruise */ + "#if ( (clock >= 25) & (clock <= 224) )\n" + "rotate <0, 0, (WCA/2)+WCA*((clock-25)/25)>\n" + "#end\n" + + /* Overlap */ + + /* Deceleration */ + "#if ( (clock >= 225) & (clock <= 274) )\n" + "rotate <0, 0, 360-WCA + WCA*((clock-225)/25) " + " - 0.5*(WCA/2)*((clock-225)/25)*((clock-225)/25) >\n" + "#end\n" + + /* Acceleration */ + "#if ( (clock >= 225) & (clock <= 274) )\n" + "rotate <0.5*(WCL/2)*((clock-225)/25)*((clock-225)/25), 0, 0>\n" + "#end\n" + + /* Second half */ + + /* Cruise */ + "#if ( (clock >= 275) & (clock <= 396) )\n" + "rotate \n" + "#end\n" + + /* Deceleration to pause */ + "#if ( (clock >= 397) & (clock <= 421) )\n" + "rotate <(1+TA)*WCL+ WCL*((clock-397)/25) " + " - 0.5*WCL*((clock-397)/25)*((clock-397)/25), 0, 0 >\n" + "#end\n" + + /* Acceleration after pause */ + "#if ( (clock >= 422) & (clock <= 446) )\n" + "rotate <(1.5+TA)*WCL" + " + 0.5*WCL*((clock-422)/25)*((clock-422)/25), 0, 0>\n" + "#end\n" + + /* Final Cruise */ + "#if ( (clock >= 447) & (clock <= 474) )\n" + "rotate <(2+TA)*WCL + WCL*((clock-447)/25), 0, 0>\n" + "#end\n" + + /* Final Deceleration */ + "#if ( (clock >= 475) & (clock <= 499) )\n" + "rotate <(2+TA+TB)*WCL + WCL*((clock-475)/25) " + " - 0.5*WCL*((clock-475)/25)*((clock-475)/25), 0, 0 >\n" + "#end\n"); + + fprintf(fh, "}\n"); + + max = 0.5e6; + for ( h=-INDMAX; h max) ) { + s = 6; + } + switch ( s ) { + case 0 : /* Black to blue */ + r = 0.0; g = 0.0; b = p; + break; + case 1 : /* Blue to green */ + r = 0.0; g = p; b = 1.0-p; + break; + case 2 : /* Green to red */ + r =p; g = 1.0-p; b = 0.0; + break; + case 3 : /* Red to Orange */ + r = 1.0; g = 0.5*p; b = 0.0; + break; + case 4 : /* Orange to Yellow */ + r = 1.0; g = 0.5 + 0.5*p; b = 0.0; + break; + case 5 : /* Yellow to White */ + r = 1.0; g = 1.0; b = 1.0*p; + break; + case 6 : /* Pixel has hit the maximum value */ + r = 1.0; g = 1.0; b = 1.0; + break; + } + + val = max-val; + + if ( val <= 0.0 ) continue; + radius = 0.1 * sqrt(sqrt(val))/1e2; + radius -= 0.005; + if ( radius > 0.03 ) radius = 0.03; + if ( radius <= 0.0 ) continue; + trans = (0.03-radius)/0.03; + radius += 0.002; + + x = asx*h + bsx*k + csx*l; + y = asy*h + bsy*k + csy*l; + z = asz*h + bsz*k + csz*l; + + fprintf(fh, "sphere { <%.5f, %.5f, %.5f>, %.5f " + "texture{pigment{color rgb <%f, %f, %f>" + " transmit %f} " + "finish { reflection 0.1 } } \n" + "transform { TRANS }\n" + "}\n", + x/1e9, y/1e9, z/1e9, radius, r, g, b, trans); + + } + } + } + + fprintf(fh, "\n"); + fclose(fh); + + for ( i=0; i