diff options
Diffstat (limited to 'main.c')
| -rw-r--r-- | main.c | 853 |
1 files changed, 0 insertions, 853 deletions
@@ -1,853 +0,0 @@ -#include <u.h> -#include <libc.h> -#include <thread.h> -#include <draw.h> -#include <memdraw.h> -#include <mouse.h> -#include <keyboard.h> -#include <geometry.h> -#include "libobj/obj.h" -#include "libgraphics/graphics.h" -#include "dat.h" -#include "fns.h" - -typedef struct Camcfg Camcfg; -struct Camcfg -{ - Point3 p, lookat, up; - double fov, clipn, clipf; - int ptype; -}; - -Rune keys[Ke] = { - [K↑] = Kup, - [K↓] = Kdown, - [K←] = Kleft, - [K→] = Kright, - [Krise] = Kpgup, - [Kfall] = Kpgdown, - [KR↑] = 'w', - [KR↓] = 's', - [KR←] = 'a', - [KR→] = 'd', - [KR↺] = 'q', - [KR↻] = 'e', - [Kzoomin] = 'z', - [Kzoomout] = 'x', - [Kcam0] = KF|1, - [Kcam1] = KF|2, - [Kcam2] = KF|3, - [Kcam3] = KF|4, - [Khud] = 'h', -}; -char stats[Se][256]; -Image *screenb; -Mousectl *mctl; -Keyboardctl *kctl; -Channel *drawc; -int kdown; -Shadertab *shader; -Model *model; -Entity *subject; -Scene *scene; -double θ, ω = 0; - -Camera cams[4], *maincam; -Camcfg camcfgs[4] = { - 2,0,-4,1, - 0,0,0,1, - 0,1,0,0, - 0, 0.01, 100, ORTHOGRAPHIC, - - -2,0,-4,1, - 0,0,0,1, - 0,1,0,0, - 120*DEG, 0.01, 100, PERSPECTIVE, - - -2,0,4,1, - 0,0,0,1, - 0,1,0,0, - 0, 0.01, 100, ORTHOGRAPHIC, - - 2,0,4,1, - 0,0,0,1, - 0,1,0,0, - 80*DEG, 0.01, 100, PERSPECTIVE -}; -Point3 center = {0,0,0,1}; -LightSource light; /* global point light */ - -static int doprof; -static int inception; -static int showhud; -Color (*tsampler)(Memimage*,Point2); - -static int -min(int a, int b) -{ - return a < b? a: b; -} - -static int -max(int a, int b) -{ - return a > b? a: b; -} - -//void -//drawaxis(void) -//{ -// Point3 op = Pt3(0,0,0,1), -// px = Pt3(1,0,0,1), -// py = Pt3(0,1,0,1), -// pz = Pt3(0,0,1,1); -// -// line3(maincam, op, px, 0, Endarrow, display->black); -// string3(maincam, px, display->black, font, "x"); -// line3(maincam, op, py, 0, Endarrow, display->black); -// string3(maincam, py, display->black, font, "y"); -// line3(maincam, op, pz, 0, Endarrow, display->black); -// string3(maincam, pz, display->black, font, "z"); -//} - -Point3 -gouraudvshader(VSparams *sp) -{ - static double Ka = 0.1; /* ambient factor */ - static double Ks = 0.5; /* specular factor */ - double Kd; /* diffuse factor */ - double spec; - Point3 pos, lightdir, lookdir; - Material m; - Color a, d, s; - Color ambient, diffuse, specular; - - sp->v->n = qrotate(sp->v->n, Vec3(0,1,0), θ+fmod(ω*sp->su->uni_time/1e9, 2*PI)); - sp->v->p = qrotate(sp->v->p, Vec3(0,1,0), θ+fmod(ω*sp->su->uni_time/1e9, 2*PI)); - pos = model2world(sp->su->entity, sp->v->p); - if(sp->v->mtl != nil){ - a.r = sp->v->mtl->Ka.r; a.g = sp->v->mtl->Ka.g; a.b = sp->v->mtl->Ka.b; a.a = 1; - d.r = sp->v->mtl->Kd.r; d.g = sp->v->mtl->Kd.g; d.b = sp->v->mtl->Kd.b; d.a = 1; - s.r = sp->v->mtl->Ks.r; s.g = sp->v->mtl->Ks.g; s.b = sp->v->mtl->Ks.b; s.a = 1; - m.ambient = a; - m.diffuse = d; - m.specular = s; - m.shininess = sp->v->mtl->Ns; - - ambient = mulpt3(light.c, Ka); - ambient.r *= m.ambient.r; - ambient.g *= m.ambient.g; - ambient.b *= m.ambient.b; - ambient.a *= m.ambient.a; - - lightdir = normvec3(subpt3(light.p, pos)); - Kd = fmax(0, dotvec3(sp->v->n, lightdir)); - diffuse = mulpt3(light.c, Kd); - diffuse.r *= m.diffuse.r; - diffuse.g *= m.diffuse.g; - diffuse.b *= m.diffuse.b; - diffuse.a *= m.diffuse.a; - - lookdir = normvec3(subpt3(maincam->p, pos)); - lightdir = qrotate(lightdir, sp->v->n, PI); - spec = pow(fmax(0, dotvec3(lookdir, lightdir)), m.shininess); - specular = mulpt3(light.c, spec*Ks); - specular.r *= m.specular.r; - specular.g *= m.specular.g; - specular.b *= m.specular.b; - specular.a *= m.specular.a; - - sp->v->c = addpt3(ambient, addpt3(diffuse, specular)); - } - return world2clip(maincam, pos); -} - -Color -gouraudshader(FSparams *sp) -{ - Color tc, c; - - if(sp->v.mtl != nil && sp->v.mtl->map_Kd != nil && sp->v.uv.w != 0) - tc = texture(sp->v.mtl->map_Kd, sp->v.uv, tsampler); - else if(sp->su->entity->mdl->tex != nil && sp->v.uv.w != 0) - tc = texture(sp->su->entity->mdl->tex, sp->v.uv, tsampler); - else - tc = Pt3(1,1,1,1); - - c.a = 1; - c.b = fclamp(sp->v.c.b*tc.b, 0, 1); - c.g = fclamp(sp->v.c.g*tc.g, 0, 1); - c.r = fclamp(sp->v.c.r*tc.r, 0, 1); - - return c; -} - -Point3 -phongvshader(VSparams *sp) -{ - Point3 pos; - Color a, d, s; - double ss; - - sp->v->n = qrotate(sp->v->n, Vec3(0,1,0), θ+fmod(ω*sp->su->uni_time/1e9, 2*PI)); - sp->v->p = qrotate(sp->v->p, Vec3(0,1,0), θ+fmod(ω*sp->su->uni_time/1e9, 2*PI)); - pos = model2world(sp->su->entity, sp->v->p); - addvattr(sp->v, "pos", VAPoint, &pos); - if(sp->v->mtl != nil){ - a.r = sp->v->mtl->Ka.r; a.g = sp->v->mtl->Ka.g; a.b = sp->v->mtl->Ka.b; a.a = 1; - d.r = sp->v->mtl->Kd.r; d.g = sp->v->mtl->Kd.g; d.b = sp->v->mtl->Kd.b; d.a = 1; - s.r = sp->v->mtl->Ks.r; s.g = sp->v->mtl->Ks.g; s.b = sp->v->mtl->Ks.b; s.a = 1; - ss = sp->v->mtl->Ns; - addvattr(sp->v, "ambient", VAPoint, &a); - addvattr(sp->v, "diffuse", VAPoint, &d); - addvattr(sp->v, "specular", VAPoint, &s); - addvattr(sp->v, "shininess", VANumber, &ss); - } - return world2clip(maincam, pos); -} - -Color -phongshader(FSparams *sp) -{ - static double Ka = 0.1; /* ambient factor */ - static double Ks = 0.5; /* specular factor */ - double Kd; /* diffuse factor */ - double spec; - Color ambient, diffuse, specular, tc, c; - Point3 pos, lookdir, lightdir; - Material m; - Vertexattr *va; - - va = getvattr(&sp->v, "pos"); - pos = va->p; - - va = getvattr(&sp->v, "ambient"); - m.ambient = va != nil? va->p: Pt3(1,1,1,1); - va = getvattr(&sp->v, "diffuse"); - m.diffuse = va != nil? va->p: Pt3(1,1,1,1); - va = getvattr(&sp->v, "specular"); - m.specular = va != nil? va->p: Pt3(1,1,1,1); - va = getvattr(&sp->v, "shininess"); - m.shininess = va != nil? va->n: 1; - - ambient = mulpt3(light.c, Ka); - ambient.r *= m.ambient.r; - ambient.g *= m.ambient.g; - ambient.b *= m.ambient.b; - ambient.a *= m.ambient.a; - - lightdir = normvec3(subpt3(light.p, pos)); - Kd = fmax(0, dotvec3(sp->v.n, lightdir)); - diffuse = mulpt3(light.c, Kd); - diffuse.r *= m.diffuse.r; - diffuse.g *= m.diffuse.g; - diffuse.b *= m.diffuse.b; - diffuse.a *= m.diffuse.a; - - lookdir = normvec3(subpt3(maincam->p, pos)); - lightdir = qrotate(lightdir, sp->v.n, PI); - spec = pow(fmax(0, dotvec3(lookdir, lightdir)), m.shininess); - specular = mulpt3(light.c, spec*Ks); - specular.r *= m.specular.r; - specular.g *= m.specular.g; - specular.b *= m.specular.b; - specular.a *= m.specular.a; - - if(sp->v.mtl != nil && sp->v.mtl->map_Kd != nil && sp->v.uv.w != 0) - tc = texture(sp->v.mtl->map_Kd, sp->v.uv, tsampler); - else if(sp->su->entity->mdl->tex != nil && sp->v.uv.w != 0) - tc = texture(sp->su->entity->mdl->tex, sp->v.uv, tsampler); - else - tc = Pt3(1,1,1,1); - - c = addpt3(ambient, addpt3(diffuse, specular)); - c.a = 1; - c.b = fclamp(c.b*tc.b, 0, 1); - c.g = fclamp(c.g*tc.g, 0, 1); - c.r = fclamp(c.r*tc.r, 0, 1); - - return c; -} - -Point3 -identvshader(VSparams *sp) -{ - Point3 pos, lightdir; - double intens; - - pos = model2world(sp->su->entity, sp->v->p); - lightdir = normvec3(subpt3(light.p, pos)); - intens = fmax(0, dotvec3(sp->v->n, lightdir)); - addvattr(sp->v, "intensity", VANumber, &intens); - if(sp->v->mtl != nil){ - sp->v->c.r = sp->v->mtl->Kd.r; - sp->v->c.g = sp->v->mtl->Kd.g; - sp->v->c.b = sp->v->mtl->Kd.b; - sp->v->c.a = 1; - } - return world2clip(maincam, pos); -} - -Color -toonshader(FSparams *sp) -{ - Vertexattr *va; - double intens; - - va = getvattr(&sp->v, "intensity"); - intens = va->n; - intens = intens > 0.85? 1: intens > 0.60? 0.80: intens > 0.45? 0.60: intens > 0.30? 0.45: intens > 0.15? 0.30: 0; - - return Pt3(intens, 0.6*intens, 0, 1); -} - -Color -identshader(FSparams *sp) -{ - Color tc, c; - - if(sp->v.mtl != nil && sp->v.mtl->map_Kd != nil && sp->v.uv.w != 0) - tc = texture(sp->v.mtl->map_Kd, sp->v.uv, tsampler); - else if(sp->su->entity->mdl->tex != nil && sp->v.uv.w != 0) - tc = texture(sp->su->entity->mdl->tex, sp->v.uv, tsampler); - else - tc = Pt3(1,1,1,1); - - c.a = 1; - c.b = fclamp(sp->v.c.b*tc.b, 0, 1); - c.g = fclamp(sp->v.c.g*tc.g, 0, 1); - c.r = fclamp(sp->v.c.r*tc.r, 0, 1); - - return c; -} - -Point3 -ivshader(VSparams *sp) -{ - return world2clip(maincam, model2world(sp->su->entity, sp->v->p)); -} - -Color -triangleshader(FSparams *sp) -{ - Triangle2 t; - Rectangle bbox; - Point3 bc; - - t.p0 = Pt2(240,200,1); - t.p1 = Pt2(400,40,1); - t.p2 = Pt2(240,40,1); - - bbox = Rect( - min(min(t.p0.x, t.p1.x), t.p2.x), min(min(t.p0.y, t.p1.y), t.p2.y), - max(max(t.p0.x, t.p1.x), t.p2.x), max(max(t.p0.y, t.p1.y), t.p2.y) - ); - if(!ptinrect(sp->p, bbox)) - return Vec3(0,0,0); - - bc = barycoords(t, Pt2(sp->p.x,sp->p.y,1)); - if(bc.x < 0 || bc.y < 0 || bc.z < 0) - return Vec3(0,0,0); - - return Pt3(bc.x, bc.y, bc.z, 1); -} - -Color -circleshader(FSparams *sp) -{ - Point2 uv; - double r, d; - - uv = Pt2(sp->p.x,sp->p.y,1); - uv.x /= Dx(sp->su->fb->r); - uv.y /= Dy(sp->su->fb->r); -// r = 0.3; - r = 0.3*fabs(sin(sp->su->uni_time/1e9)); - d = vec2len(subpt2(uv, Vec2(0.5,0.5))); - - if(d > r + r*0.05 || d < r - r*0.05) - return Vec3(0,0,0); - - return Pt3(uv.x, uv.y, 0, 1); -} - -/* some shaping functions from The Book of Shaders, Chapter 5 */ -Color -sfshader(FSparams *sp) -{ - Point2 uv; - double y, pct; - - uv = Pt2(sp->p.x,sp->p.y,1); - uv.x /= Dx(sp->su->fb->r); - uv.y /= Dy(sp->su->fb->r); - uv.y = 1 - uv.y; /* make [0 0] the bottom-left corner */ - -// y = step(0.5, uv.x); -// y = pow(uv.x, 5); -// y = sin(uv.x); - y = sin(uv.x*sp->su->uni_time/1e8)/2.0 + 0.5; -// y = smoothstep(0.1, 0.9, uv.x); - pct = smoothstep(y-0.02, y, uv.y) - smoothstep(y, y+0.02, uv.y); - - return Pt3(flerp(y, 0, pct), flerp(y, 1, pct), flerp(y, 0, pct), 1); -} - -Color -boxshader(FSparams *sp) -{ - Point2 uv, p; - Point2 r; - - uv = Pt2(sp->p.x,sp->p.y,1); - uv.x /= Dx(sp->su->fb->r); - uv.y /= Dy(sp->su->fb->r); - r = Vec2(0.2,0.4); - - p = Pt2(fabs(uv.x - 0.5), fabs(uv.y - 0.5), 1); - p = subpt2(p, r); - p.x = fmax(p.x, 0); - p.y = fmax(p.y, 0); - - if(vec2len(p) > 0) - return Vec3(0,0,0); - - return Pt3(uv.x, uv.y, smoothstep(0,1,uv.x+uv.y), 1); -} - -Shadertab shadertab[] = { - { "triangle", ivshader, triangleshader }, - { "circle", ivshader, circleshader }, - { "box", ivshader, boxshader }, - { "sf", ivshader, sfshader }, - { "toon", identvshader, toonshader }, - { "ident", identvshader, identshader }, - { "gouraud", gouraudvshader, gouraudshader }, - { "phong", phongvshader, phongshader }, -}; -Shadertab * -getshader(char *name) -{ - int i; - - for(i = 0; i < nelem(shadertab); i++) - if(strcmp(shadertab[i].name, name) == 0) - return &shadertab[i]; - return nil; -} - -void -zoomin(void) -{ - maincam->fov = fclamp(maincam->fov - 1*DEG, 1*DEG, 359*DEG); - reloadcamera(maincam); -} - -void -zoomout(void) -{ - maincam->fov = fclamp(maincam->fov + 1*DEG, 1*DEG, 359*DEG); - reloadcamera(maincam); -} - -void -drawstats(void) -{ - int i; - - snprint(stats[Scamno], sizeof(stats[Scamno]), "CAM %lld", maincam-cams+1); - snprint(stats[Sfov], sizeof(stats[Sfov]), "FOV %g°", maincam->fov/DEG); - snprint(stats[Scampos], sizeof(stats[Scampos]), "%V", maincam->p); - snprint(stats[Scambx], sizeof(stats[Scambx]), "bx %V", maincam->bx); - snprint(stats[Scamby], sizeof(stats[Scamby]), "by %V", maincam->by); - snprint(stats[Scambz], sizeof(stats[Scambz]), "bz %V", maincam->bz); - snprint(stats[Sfps], sizeof(stats[Sfps]), "FPS %.0f/%.0f/%.0f/%.0f", !maincam->stats.max? 0: 1e9/maincam->stats.max, !maincam->stats.avg? 0: 1e9/maincam->stats.avg, !maincam->stats.min? 0: 1e9/maincam->stats.min, !maincam->stats.v? 0: 1e9/maincam->stats.v); - snprint(stats[Sframes], sizeof(stats[Sframes]), "frame %llud", maincam->stats.nframes); - for(i = 0; i < Se; i++) - stringbg(screen, addpt(screen->r.min, Pt(10,10 + i*font->height)), display->black, ZP, font, stats[i], display->white, ZP); -} - -void -redraw(void) -{ - static Image *bg; - - if(bg == nil) - bg = eallocimage(display, UR, RGB24, 1, 0x888888FF); - - lockdisplay(display); - maincam->vp->draw(maincam->vp, screenb); - draw(screen, screen->r, bg, nil, ZP); - draw(screen, screen->r, screenb, nil, ZP); -// drawaxis(); - if(showhud) - drawstats(); - flushimage(display, 1); - unlockdisplay(display); -} - -void -drawproc(void *) -{ - uvlong t0, Δt; - int fd; - - threadsetname("drawproc"); - - fd = -1; - if(inception){ - fd = open("/dev/screen", OREAD); - if(fd < 0) - sysfatal("open: %r"); - freememimage(model->tex); - if((model->tex = readmemimage(fd)) == nil) - sysfatal("readmemimage: %r"); - } - - t0 = nsec(); - for(;;){ - shootcamera(maincam, shader); - Δt = nsec() - t0; - if(Δt > HZ2MS(60)*1000000ULL){ - nbsend(drawc, nil); - t0 += Δt; - if(inception){ - freememimage(model->tex); - seek(fd, 0, 0); - if((model->tex = readmemimage(fd)) == nil) - sysfatal("readmemimage: %r"); - } - light.p = qrotate(light.p, Vec3(0,1,0), θ+fmod(ω*Δt/1e9, 2*PI)); - } - } -} - -void -mmb(void) -{ - enum { - MOVELIGHT, - TSNEAREST, - TSBILINEAR, - }; - static char *items[] = { - [MOVELIGHT] "move light", - [TSNEAREST] "use nearest sampler", - [TSBILINEAR] "use bilinear sampler", - nil, - }; - static Menu menu = { .item = items }; - char buf[256], *f[3]; - int nf; - - switch(menuhit(2, mctl, &menu, _screen)){ - case MOVELIGHT: - snprint(buf, sizeof buf, "%g %g %g", light.p.x, light.p.y, light.p.z); - if(enter("light pos", buf, sizeof buf, mctl, kctl, nil) <= 0) - return; - nf = tokenize(buf, f, 3); - if(nf != 3) - return; - light.p.x = strtod(f[0], nil); - light.p.y = strtod(f[1], nil); - light.p.z = strtod(f[2], nil); - break; - case TSNEAREST: - tsampler = neartexsampler; - break; - case TSBILINEAR: - tsampler = bilitexsampler; - break; - } - nbsend(drawc, nil); -} - -static char * -genrmbmenuitem(int idx) -{ - if(idx < nelem(shadertab)) - return shadertab[idx].name; - return nil; -} - -void -rmb(void) -{ - static Menu menu = { .gen = genrmbmenuitem }; - int idx; - - idx = menuhit(3, mctl, &menu, _screen); - if(idx < 0) - return; - shader = &shadertab[idx]; - for(idx = 0; idx < nelem(cams); idx++) - memset(&cams[idx].stats, 0, sizeof(cams[idx].stats)); - nbsend(drawc, nil); -} - -void -mouse(void) -{ - if((mctl->buttons & 2) != 0) - mmb(); - if((mctl->buttons & 4) != 0) - rmb(); - if((mctl->buttons & 8) != 0) - zoomin(); - if((mctl->buttons & 16) != 0) - zoomout(); -} - -void -kbdproc(void *) -{ - Rune r, *a; - char buf[128], *s; - int fd, n; - - threadsetname("kbdproc"); - - if((fd = open("/dev/kbd", OREAD)) < 0) - sysfatal("kbdproc: %r"); - memset(buf, 0, sizeof buf); - - for(;;){ - if(buf[0] != 0){ - n = strlen(buf)+1; - memmove(buf, buf+n, sizeof(buf)-n); - } - if(buf[0] == 0){ - if((n = read(fd, buf, sizeof(buf)-1)) <= 0) - break; - buf[n-1] = 0; - buf[n] = 0; - } - if(buf[0] == 'c'){ - chartorune(&r, buf+1); - if(r == Kdel){ - close(fd); - threadexitsall(nil); - }else - nbsend(kctl->c, &r); - } - if(buf[0] != 'k' && buf[0] != 'K') - continue; - s = buf+1; - kdown = 0; - while(*s){ - s += chartorune(&r, s); - for(a = keys; a < keys+Ke; a++) - if(r == *a){ - kdown |= 1 << a-keys; - break; - } - } - } -} - -void -keyproc(void *c) -{ - threadsetname("keyproc"); - - for(;;){ - nbsend(c, nil); - sleep(HZ2MS(100)); /* key poll rate */ - } -} - -void -handlekeys(void) -{ - static int okdown; - - if(kdown & 1<<K↑) - placecamera(maincam, subpt3(maincam->p, mulpt3(maincam->bz, 0.1)), maincam->bz, maincam->by); - if(kdown & 1<<K↓) - placecamera(maincam, addpt3(maincam->p, mulpt3(maincam->bz, 0.1)), maincam->bz, maincam->by); - if(kdown & 1<<K←) - placecamera(maincam, subpt3(maincam->p, mulpt3(maincam->bx, 0.1)), maincam->bz, maincam->by); - if(kdown & 1<<K→) - placecamera(maincam, addpt3(maincam->p, mulpt3(maincam->bx, 0.1)), maincam->bz, maincam->by); - if(kdown & 1<<Krise) - placecamera(maincam, addpt3(maincam->p, mulpt3(maincam->by, 0.1)), maincam->bz, maincam->by); - if(kdown & 1<<Kfall) - placecamera(maincam, subpt3(maincam->p, mulpt3(maincam->by, 0.1)), maincam->bz, maincam->by); - if(kdown & 1<<KR↑) - aimcamera(maincam, qrotate(maincam->bz, maincam->bx, 1*DEG)); - if(kdown & 1<<KR↓) - aimcamera(maincam, qrotate(maincam->bz, maincam->bx, -1*DEG)); - if(kdown & 1<<KR←) - aimcamera(maincam, qrotate(maincam->bz, maincam->by, 1*DEG)); - if(kdown & 1<<KR→) - aimcamera(maincam, qrotate(maincam->bz, maincam->by, -1*DEG)); - if(kdown & 1<<KR↺) - placecamera(maincam, maincam->p, maincam->bz, qrotate(maincam->by, maincam->bz, 1*DEG)); - if(kdown & 1<<KR↻) - placecamera(maincam, maincam->p, maincam->bz, qrotate(maincam->by, maincam->bz, -1*DEG)); - if(kdown & 1<<Kzoomin) - zoomin(); - if(kdown & 1<<Kzoomout) - zoomout(); - if(kdown & 1<<Kcam0) - maincam = &cams[0]; - if(kdown & 1<<Kcam1) - maincam = &cams[1]; - if(kdown & 1<<Kcam2) - maincam = &cams[2]; - if(kdown & 1<<Kcam3) - maincam = &cams[3]; - - if((okdown & 1<<Khud) == 0 && (kdown & 1<<Khud) != 0) - showhud ^= 1; - - okdown = kdown; -} - -void -resize(void) -{ - lockdisplay(display); - if(getwindow(display, Refnone) < 0) - fprint(2, "can't reattach to window\n"); - unlockdisplay(display); - nbsend(drawc, nil); -} - -static void -confproc(void) -{ - char buf[64]; - int fd; - - snprint(buf, sizeof buf, "/proc/%d/ctl", getpid()); - fd = open(buf, OWRITE); - if(fd < 0) - sysfatal("open: %r"); - - if(doprof) - fprint(fd, "profile\n"); -// fprint(fd, "pri 15\n"); -// fprint(fd, "wired 0\n"); -// setfcr(getfcr() & ~FPINVAL); - - close(fd); -} - -void -usage(void) -{ - fprint(2, "usage: %s [-t texture] [-n normals] [-s shader] [-ω yrot] model...\n", argv0); - exits("usage"); -} - -void -threadmain(int argc, char *argv[]) -{ - Viewport *v; - Renderer *rctl; - Channel *keyc; - char *texpath, *norpath, *sname, *mdlpath; - int i, fd; - - GEOMfmtinstall(); - texpath = nil; - norpath = nil; - sname = "gouraud"; - ARGBEGIN{ - case 't': texpath = EARGF(usage()); break; - case 'n': norpath = EARGF(usage()); break; - case 's': sname = EARGF(usage()); break; - case L'ω': ω = strtod(EARGF(usage()), nil)*DEG; break; - case L'ι': inception++; break; - case 'p': doprof++; break; - default: usage(); - }ARGEND; - if(argc < 1) - usage(); - - confproc(); - - if((shader = getshader(sname)) == nil) - sysfatal("couldn't find %s shader", sname); - - scene = newscene(nil); - while(argc--){ - mdlpath = argv[argc]; - model = newmodel(); - subject = newentity(model); - subject->p.x = argc*4; - scene->addent(scene, subject); - - if((model->obj = objparse(mdlpath)) == nil) - sysfatal("objparse: %r"); - if(argc == 0 && texpath != nil){ - fd = open(texpath, OREAD); - if(fd < 0) - sysfatal("open: %r"); - if((model->tex = readmemimage(fd)) == nil) - sysfatal("readmemimage: %r"); - close(fd); - } - if(argc == 0 && norpath != nil){ - fd = open(norpath, OREAD); - if(fd < 0) - sysfatal("open: %r"); - if((model->nor = readmemimage(fd)) == nil) - sysfatal("readmemimage: %r"); - close(fd); - } - refreshmodel(model); - } - - if(memimageinit() != 0) - sysfatal("memimageinit: %r"); - if((rctl = initgraphics()) == nil) - sysfatal("initgraphics: %r"); - if(initdraw(nil, nil, "3d") < 0) - sysfatal("initdraw: %r"); - if((mctl = initmouse(nil, screen)) == nil) - sysfatal("initmouse: %r"); - - screenb = eallocimage(display, rectsubpt(screen->r, screen->r.min), RGBA32, 0, DNofill); - for(i = 0; i < nelem(cams); i++){ - v = mkviewport(screenb->r); - placecamera(&cams[i], camcfgs[i].p, camcfgs[i].lookat, camcfgs[i].up); - configcamera(&cams[i], v, camcfgs[i].fov, camcfgs[i].clipn, camcfgs[i].clipf, camcfgs[i].ptype); - cams[i].s = scene; - cams[i].rctl = rctl; - } - maincam = &cams[3]; - light.p = Pt3(0,100,100,1); - light.c = Pt3(1,1,1,1); - light.type = LIGHT_POINT; - tsampler = neartexsampler; - - kctl = emalloc(sizeof *kctl); - kctl->c = chancreate(sizeof(Rune), 16); - keyc = chancreate(sizeof(void*), 1); - drawc = chancreate(sizeof(void*), 1); - display->locking = 1; - unlockdisplay(display); - - proccreate(kbdproc, nil, mainstacksize); - proccreate(keyproc, keyc, mainstacksize); - proccreate(drawproc, nil, mainstacksize); - - for(;;){ - enum {MOUSE, RESIZE, KEY, DRAW}; - Alt a[] = { - {mctl->c, &mctl->Mouse, CHANRCV}, - {mctl->resizec, nil, CHANRCV}, - {keyc, nil, CHANRCV}, - {drawc, nil, CHANRCV}, - {nil, nil, CHANEND} - }; - switch(alt(a)){ - case MOUSE: mouse(); break; - case RESIZE: resize(); break; - case KEY: handlekeys(); break; - case DRAW: redraw(); break; - } - } -} |