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add parabole

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Frater 2026-05-15 12:57:47 +02:00
commit a89bea929a
6 changed files with 447 additions and 32 deletions
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11
src/part3D/engine.c
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@ -61,6 +61,7 @@ void mat3_rotate_z(Matrix3 *m, int angle) {
}
/* Fait pivoter la géométrie locale de l'objet de façon permanente */
/*
void bake_object_rotation(Universe *uni, Object3D *obj, int ax, int ay, int az) {
Matrix3 rx, ry, rz, tmp, rot;
Vector3 *v, *n;
@ -70,20 +71,20 @@ void bake_object_rotation(Universe *uni, Object3D *obj, int ax, int ay, int az)
if (!obj || !uni) return;
/* Composition de la matrice de rotation */
/* Composition de la matrice de rotation * /
mat3_rotate_x(&rx, ax);
mat3_rotate_y(&ry, ay);
mat3_rotate_z(&rz, az);
mat3_mul(&tmp, &rx, &ry);
mat3_mul(&rot, &tmp, &rz);
/* Application à tous les sommets et normales de l'objet */
/* Application à tous les sommets et normales de l'objet * /
for (i = 0; i < obj->num_verts; i++) {
vi = obj->vert_start + i;
v = &uni->verts[vi];
n = &uni->v_normals[vi];
/* Sommets */
/* Sommets * /
vx = f_mul(v->x, rot.m[0][0]) + f_mul(v->y, rot.m[1][0]) + f_mul(v->z, rot.m[2][0]);
vy = f_mul(v->x, rot.m[0][1]) + f_mul(v->y, rot.m[1][1]) + f_mul(v->z, rot.m[2][1]);
vz = f_mul(v->x, rot.m[0][2]) + f_mul(v->y, rot.m[1][2]) + f_mul(v->z, rot.m[2][2]);
@ -91,7 +92,7 @@ void bake_object_rotation(Universe *uni, Object3D *obj, int ax, int ay, int az)
v->y = vy;
v->z = vz;
/* Normales (doivent aussi pivoter pour l'ombrage Gouraud !) */
/* Normales (doivent aussi pivoter pour l'ombrage Gouraud !) * /
vx = f_mul(n->x, rot.m[0][0]) + f_mul(n->y, rot.m[1][0]) + f_mul(n->z, rot.m[2][0]);
vy = f_mul(n->x, rot.m[0][1]) + f_mul(n->y, rot.m[1][1]) + f_mul(n->z, rot.m[2][1]);
vz = f_mul(n->x, rot.m[0][2]) + f_mul(n->y, rot.m[1][2]) + f_mul(n->z, rot.m[2][2]);
@ -100,7 +101,7 @@ void bake_object_rotation(Universe *uni, Object3D *obj, int ax, int ay, int az)
n->z = vz;
}
}
*/
void render_universe(Universe *uni, Camera *cam, int mode) {
int o, i, vi, front;
fixed rx, ry, rz, pz, nz;