v4k-git-backup/demos/05-scene.c

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// scene demo
// - rlyeh, public domain
2023-08-10 22:14:08 +00:00
#include "v4k.h"
int main() {
// options
bool do_twosided = 1;
bool do_wireframe = 0;
bool do_billboard_x = 0, do_billboard_y = 0, do_billboard_z = 0;
// window (80% sized, MSAA x4 flag)
window_create(80, WINDOW_MSAA4);
window_title(__FILE__);
// load all postfx files in all subdirs
fx_load("fx**.fs");
// scene loading
#define SCENE(...) #__VA_ARGS__
const char *my_scene = SCENE([
{
skybox: 'cubemaps/stardust/',
},
{
position:[-5.0,-2.0,2.0],
rotation: [90.0,0.0,180.0],
scale:0.20,
//anchor/pivot:[],
// vertex:'p3 t2',
mesh:'models/witch/witch.obj',
texture:'models/witch/witch_diffuse.tga.png',
// swapzy:true,
flipuv:false,
},
{
position:[-5.0,-2.0,2.0],
rotation: [90.0,0.0,180.0],
scale:2.20,
//anchor/pivot:[],
// vertex:'p3 t2',
mesh:'models/witch/witch_object.obj',
texture:'models/witch/witch_object_diffuse.tga.png',
// swapzy:true,
flipuv:false,
},
]);
int num_spawned = scene_merge(my_scene);
object_t *obj1 = scene_index(0);
object_t *obj2 = scene_index(1);
// manual spawn & loading
model_t m1 = model("kgirl/kgirls01.fbx", 0); //MODEL_NO_ANIMS);
texture_t t1 = texture("kgirl/g01_texture.png", TEXTURE_RGB);
object_t* obj3 = scene_spawn();
object_model(obj3, m1);
object_diffuse(obj3, t1);
object_scale(obj3, vec3(3,3,3));
object_move(obj3, vec3(-10,0,-10));
object_pivot(obj3, vec3(-90+180,180,0));
// camera
camera_t cam = camera();
cam.speed = 0.2f;
// demo loop
while (window_swap())
{
// input
if( input_down(KEY_ESC) ) break;
// fps camera
bool active = ui_active() || ui_hover() || gizmo_active() ? false : input(MOUSE_L) || input(MOUSE_M) || input(MOUSE_R);
window_cursor( !active );
if( active ) cam.speed = clampf(cam.speed + input_diff(MOUSE_W) / 10, 0.05f, 5.0f);
vec2 mouse = scale2(vec2(input_diff(MOUSE_X), -input_diff(MOUSE_Y)), 0.2f * active);
vec3 wasdecq = scale3(vec3(input(KEY_D)-input(KEY_A),input(KEY_E)-(input(KEY_C)||input(KEY_Q)),input(KEY_W)-input(KEY_S)), cam.speed);
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camera_moveby(&cam, wasdecq);
camera_fps(&cam, mouse.x,mouse.y);
// queue model scale bounces
float t = fmod(window_time(), 0.3) / 0.3;
float s = 0.01f * ease_ping_pong(t, ease_in_cubic,ease_out_cubic);
object_scale(obj1, vec3(0.20f - s,0.20f + s,0.20f - s));
object_scale(obj2, vec3(0.20f - s,0.20f + s,0.20f - s));
// queue model billboard
object_billboard(obj1, (do_billboard_x << 2)|(do_billboard_y << 1)|(do_billboard_z << 0));
object_billboard(obj2, (do_billboard_x << 2)|(do_billboard_y << 1)|(do_billboard_z << 0));
// queue model rotation
//object_rotate(obj3, vec3(0,1*window_time() * 20,0));
// flush render scene (background objects: skybox)
profile("Scene background") {
scene_render(SCENE_BACKGROUND);
}
// queue debug drawcalls
profile("Debugdraw") {
ddraw_ground(0);
ddraw_color(YELLOW);
ddraw_text(vec3(+1,+1,-1), 0.04f, va("(%f,%f,%f)", cam.position.x,cam.position.y,cam.position.z));
ddraw_color(YELLOW);
ddraw_flush();
}
// apply post-fxs from here
fx_begin();
// render scene (foreground objects) with post-effects
profile("Scene foreground") {
int scene_flags = 0;
scene_flags |= do_wireframe ? SCENE_WIREFRAME : 0;
scene_flags |= do_twosided ? 0 : SCENE_CULLFACE;
scene_render(SCENE_FOREGROUND | scene_flags);
}
profile("Skeletal update") if(!window_has_pause()) {
float delta = window_delta() * 30 ; // 30fps anim
m1.curframe = model_animate(m1, m1.curframe + delta);
ddraw_text(vec3(-10,5,-10), 0.05, va("Frame: %.1f", m1.curframe));
}
// post-fxs end here
fx_end();
// queue ui
if( ui_panel("Camera", 0)) {
if( ui_float("Speed", &cam.speed) ) {}
if( ui_float3("Position", &cam.position.x) ) {}
ui_panel_end();
}
if( ui_panel("Scene", 0)) {
if(ui_toggle("Billboard X", &do_billboard_x)) {}
if(ui_toggle("Billboard Y", &do_billboard_y)) {}
if(ui_toggle("Billboard Z", &do_billboard_z)) {}
if(ui_separator()) {}
if(ui_bool("Wireframe", &do_wireframe)) {}
if(ui_bool("Two sided", &do_twosided)) {}
ui_panel_end();
}
}
}
#if 0
// ----------------------------------------------------------------------------
// material demo
// - rlyeh, public domain
//
// @todo: object_print(obj, "");
// create camera
camera_t cam = camera();
// load video, RGB texture, no audio
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video_t *v = video( "pexels-pachon-in-motion-17486489.mp4", VIDEO_RGB | VIDEO_NO_AUDIO | VIDEO_LOOP ); video_seek(v, 30);
// load texture
texture_t t1 = texture("kgirl/g01_texture.png", TEXTURE_RGB);
texture_t t2 = texture("matcaps/material3", 0);
// load model
model_t m1 = model("suzanne.obj", MODEL_NO_ANIMATIONS);
model_t m2 = model("suzanne.obj", MODEL_NO_ANIMATIONS|MODEL_MATCAPS);
// spawn object1 (diffuse)
object_t* obj1 = scene_spawn();
object_model(obj1, m1);
object_diffuse(obj1, t1);
object_scale(obj1, vec3(3,3,3));
object_move(obj1, vec3(-10+5*0,0,-10));
object_pivot(obj1, vec3(0,90,0));
// spawn object2 (matcap)
object_t* obj2 = scene_spawn();
object_model(obj2, m2);
object_diffuse(obj2, t2);
object_scale(obj2, vec3(3,3,3));
object_move(obj2, vec3(-10+5*2,0,-10));
object_pivot(obj2, vec3(0,90,0));
// spawn object2 (video)
object_t* obj3 = scene_spawn();
object_model(obj3, m1);
object_diffuse(obj3, video_textures(v)[0]);
object_scale(obj3, vec3(3,3,3));
object_move(obj3, vec3(-10+5*1,0,-10));
object_pivot(obj3, vec3(0,90,0));
// @todo: add shadertoy material
static model_t cube; do_once cube = model("cube.obj", 0);
static shadertoy_t s; do_once s = shadertoy("shadertoys/4ttGWM.fs", 256);
model_set_texture(cube, shadertoy_render(&s, window_delta())->tx);
model_render(cube, cam.proj, cam.view, cube.pivot, 0);
while(window_swap() && !input(KEY_ESC)) {
// draw environment
viewport_color( RGB3(22,22,32) );
ddraw_grid(0);
ddraw_flush();
// update video
video_decode( v );
// draw scene
scene_render(SCENE_FOREGROUND);
}
// load static scene
// model_t sponza = model("sponza.obj", MODEL_MATCAPS);
// model_set_texture(sponza, texture("matcaps/normals", 0));
// translation44(sponza.pivot, 0,-1,0);
// rotate44(sponza.pivot, -90,1,0,0);
// scale44(sponza.pivot, 10,10,10);
// model_render(sponza, cam.proj, cam.view, sponza.pivot, 0);
// this demo supersedes following old sources:
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// https://github.com/r-lyeh/V4K/blob/45e34d7890b2b8fe1f4994f4b76e496280d83cb6/demos/00-material.c
// https://github.com/r-lyeh/V4K/blob/45e34d7890b2b8fe1f4994f4b76e496280d83cb6/demos/00-shadertoy.c
#endif