X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=antikythera;a=blobdiff_plain;f=src%2Fmain.cc;fp=src%2Fmain.cc;h=772b63c71f06f6a7d0862ee41fd1e0641080e070;hp=5dd28570746a2611803b82e10e067e8ad657e968;hb=ccc1a688b59e25bb934a0d3e2bbf477960068d4f;hpb=080d7a779d43f549fc16c44e709cbf5989180fdf diff --git a/src/main.cc b/src/main.cc index 5dd2857..772b63c 100644 --- a/src/main.cc +++ b/src/main.cc @@ -8,12 +8,17 @@ #include #endif #include "app.h" +#include "sdr.h" +#include "shadow.h" +#include "texture.h" #include "machine.h" +#include "meshgen.h" static bool init(); static void cleanup(); static void display(); static void idle(); +static void draw_scene(); static void draw_gears(); static void reshape(int x, int y); static void keyb(unsigned char key, int x, int y); @@ -24,17 +29,28 @@ static Gear *pick_gear(int x, int y); static int win_width, win_height; -static float cam_dist = 0.5; -static float cam_theta, cam_phi; +static float cam_dist = 0.25; +static float cam_theta, cam_phi = 20; static int prev_mx, prev_my; static bool bnstate[8]; +static Mat4 view_matrix; + static unsigned int start_time, prev_msec; static Machine *machine; static Gear *hover_gear, *sel_gear; static HitPoint pick_hit; static Vec3 sel_hit_pos; +static unsigned int sdr_shadow_notex; +static int dbg_show_shadowmap; + +static TextureSet texman; +static Texture *envmap; +static Mesh *skydome; +static unsigned int sdr_skydome; + + int main(int argc, char **argv) { glutInitWindowSize(1024, 768); @@ -79,6 +95,7 @@ static bool init() gear1->pos = Vec3(-50, 0, 0); gear1->set_teeth(16, pitch); gear1->gen_mesh(); + gear1->color = Vec3(0.35, 0.6, 0.8); machine->add_gear(gear1); Gear *gear2 = new Gear; @@ -93,6 +110,7 @@ static bool init() gear3->pos = gear2->pos + Vec3(0, gear2->radius + gear3->radius - gear2->teeth_length * 0.75, 0); gear3->gen_mesh(); machine->add_gear(gear3); + gear3->color = Vec3(0.5, 0.8, 0.6); Gear *subgear = new Gear; subgear->set_teeth(10, pitch); @@ -100,20 +118,48 @@ static bool init() subgear->gen_mesh(); gear2->attach(subgear); machine->add_gear(subgear); + subgear->color = Vec3(0.8, 0.7, 0.5); machine->add_motor(0, 1.0); + // shadows + init_shadow(2048); + + if(!(sdr_shadow_notex = create_program_load("sdr/shadow.v.glsl", "sdr/shadow-notex.p.glsl"))) { + return false; + } + set_uniform_int(sdr_shadow_notex, "shadowmap", 1); + set_uniform_int(sdr_shadow_notex, "envmap", 2); + + float ambient[] = {0.1, 0.1, 0.1, 0.0}; + glLightModelfv(GL_LIGHT_MODEL_AMBIENT, ambient); + + // env + envmap = texman.get_texture("data/stpeters_cross.jpg", TEX_CUBE); + + skydome = new Mesh; + gen_sphere(skydome, 1.0, 16, 8); + skydome->flip_faces(); + + if(!(sdr_skydome = create_program_load("sdr/skydome.v.glsl", "sdr/skydome.p.glsl"))) { + return false; + } + glUseProgram(0); + start_time = glutGet(GLUT_ELAPSED_TIME); return true; } static void cleanup() { + texman.clear(); delete machine; } static void update(float dt) { + texman.update(); + machine->update(dt); if(sel_gear) { @@ -142,19 +188,87 @@ static void display() glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + view_matrix = Mat4::identity; + view_matrix.pre_translate(0, 0, -cam_dist); + view_matrix.pre_rotate(deg_to_rad(cam_phi), 1, 0, 0); + view_matrix.pre_rotate(deg_to_rad(cam_theta), 0, 1, 0); + glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - glTranslatef(0, 0, -cam_dist); - glRotatef(cam_phi, 1, 0, 0); - glRotatef(cam_theta, 0, 1, 0); + glLoadMatrixf(view_matrix[0]); - set_light(0, Vec3(-50, 75, 100), Vec3(1.0, 0.8, 0.7) * 0.8); - set_light(1, Vec3(100, 0, 30), Vec3(0.6, 0.7, 1.0) * 0.6); - set_light(2, Vec3(-10, -10, 60), Vec3(0.8, 1.0, 0.8) * 0.3); + static const Vec3 lpos[] = { Vec3(-50, 75, 100), Vec3(100, 0, 30), Vec3(-10, -10, 60) }; + set_light(0, lpos[0], Vec3(1.0, 0.8, 0.7) * 0.8); + set_light(1, lpos[1], Vec3(0.6, 0.7, 1.0) * 0.6); + set_light(2, lpos[2], Vec3(0.8, 1.0, 0.8) * 0.3); update(dt); - draw_gears(); + // shadowmap pass + begin_shadow_pass(lpos[0], Vec3(0, 0, 0), 0.2, 100, 150); + draw_scene(); + end_shadow_pass(); + + // regular pass + const Mat4 &shadow_matrix = get_shadow_matrix(); + Mat4 env_matrix = transpose(view_matrix.upper3x3()); + set_uniform_matrix4(sdr_shadow_notex, "envmap_matrix", env_matrix[0]); + + glActiveTexture(GL_TEXTURE1); + glBindTexture(GL_TEXTURE_2D, get_shadow_tex()); + glMatrixMode(GL_TEXTURE); + glLoadMatrixf(shadow_matrix[0]); + + glActiveTexture(GL_TEXTURE2); + glBindTexture(GL_TEXTURE_CUBE_MAP, envmap->get_id()); + + glActiveTexture(GL_TEXTURE0); + glMatrixMode(GL_MODELVIEW); + + draw_scene(); + + glMatrixMode(GL_TEXTURE); + glLoadIdentity(); + glMatrixMode(GL_MODELVIEW); + + + if(dbg_show_shadowmap) { + glMatrixMode(GL_PROJECTION); + glPushMatrix(); + glLoadIdentity(); + glMatrixMode(GL_MODELVIEW); + glPushMatrix(); + glLoadIdentity(); + glMatrixMode(GL_TEXTURE); + glLoadIdentity(); + + glPushAttrib(GL_ENABLE_BIT); + glUseProgram(0); + glBindTexture(GL_TEXTURE_2D, get_shadow_tex()); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE, GL_NONE); + glEnable(GL_TEXTURE_2D); + glDisable(GL_DEPTH_TEST); + glDisable(GL_LIGHTING); + glDisable(GL_BLEND); + + glBegin(GL_QUADS); + glColor4f(1, 1, 1, 1); + glTexCoord2f(0, 0); glVertex2f(-0.95, -0.95); + glTexCoord2f(1, 0); glVertex2f(-0.5, -0.95); + glTexCoord2f(1, 1); glVertex2f(-0.5, -0.5); + glTexCoord2f(0, 1); glVertex2f(-0.95, -0.5); + glEnd(); + + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_R_TO_TEXTURE); + glBindTexture(GL_TEXTURE_2D, 0); + + glPopAttrib(); + + glMatrixMode(GL_PROJECTION); + glPopMatrix(); + glMatrixMode(GL_MODELVIEW); + glPopMatrix(); + } + glutSwapBuffers(); assert(glGetError() == GL_NO_ERROR); @@ -165,13 +279,38 @@ static void idle() glutPostRedisplay(); } +static void draw_scene() +{ + // draw skydome + glDepthMask(0); + + Mat4 rot_view = view_matrix.upper3x3(); + glMatrixMode(GL_MODELVIEW); + glPushMatrix(); + glLoadMatrixf(rot_view[0]); + + bind_texture(envmap, 0); + + glUseProgram(sdr_skydome); + skydome->draw(); + glUseProgram(0); + + bind_texture(0, 0); + + glPopMatrix(); + glDepthMask(1); + + // draw mechanism + draw_gears(); +} + static void draw_gears() { /* world scale is in meters, gears are in millimeters, scale by 1/1000 */ glPushMatrix(); glScalef(0.001, 0.001, 0.001); - if(sel_gear || hover_gear) { + if(!shadow_pass && (sel_gear || hover_gear)) { glPushAttrib(GL_ENABLE_BIT | GL_LINE_BIT | GL_POLYGON_BIT); glDisable(GL_LIGHTING); @@ -190,7 +329,9 @@ static void draw_gears() glPopAttrib(); } + glUseProgram(shadow_pass ? 0 : sdr_shadow_notex); machine->draw(); + glUseProgram(0); glPopMatrix(); } @@ -204,7 +345,7 @@ static void reshape(int x, int y) glMatrixMode(GL_PROJECTION); glLoadIdentity(); - gluPerspective(50.0, (float)x / (float)y, 0.01, 100.0); + gluPerspective(50.0, (float)x / (float)y, 0.01, 50.0); } static void keyb(unsigned char key, int x, int y) @@ -217,6 +358,11 @@ static void keyb(unsigned char key, int x, int y) opt_gear_wireframe = !opt_gear_wireframe; glutPostRedisplay(); break; + + case 's': + dbg_show_shadowmap = !dbg_show_shadowmap; + glutPostRedisplay(); + break; } }