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norm is needed after all.

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veclavtalica 2025-03-11 07:09:55 +03:00
parent bdabd04388
commit f6600dfbda
1 changed files with 8 additions and 8 deletions
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16
apps/tools/twndel/tool.c
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@ -238,8 +238,8 @@ static void process_camera_rotation(void) {
static void process_camera_translation(void) {
Vec3 right = vec3_cross(state.camera_direction, (Vec3){0,1,0});
Vec3 up = vec3_cross(state.camera_direction, right);
Vec3 right = vec3_norm(vec3_cross(state.camera_direction, (Vec3){0,1,0}));
Vec3 up = vec3_norm(vec3_cross(state.camera_direction, right));
Vec3 was = state.camera_position;
if (input_action_pressed("camera_rotate_left"))
@ -383,7 +383,7 @@ static bool find_closest_face(uint8_t* object_result, uint16_t *face_result) {
Vec3 p1 = point_to_vec3(oi, f->p[1]);
Vec3 p2 = point_to_vec3(oi, f->p[2]);
Vec3 n = vec3_cross(vec3_sub(p1, p0), vec3_sub(p2, p0));
Vec3 n = vec3_norm(vec3_cross(vec3_sub(p1, p0), vec3_sub(p2, p0)));
/* culling */
if (vec3_dot(state.camera_direction, n) > 0) continue;
@ -396,24 +396,24 @@ static bool find_closest_face(uint8_t* object_result, uint16_t *face_result) {
if (dist >= closest_distance) continue;
/* left normals are used to determine whether point lies to the left for all forming lines */
Vec3 ln0 = vec3_cross(n, vec3_sub(p1, p0));
Vec3 ln0 = vec3_norm(vec3_cross(n, vec3_sub(p1, p0)));
if (vec3_dot(ln0, vec3_sub(p0, i)) > 0) continue;
Vec3 ln1 = vec3_cross(n, vec3_sub(p2, p1));
Vec3 ln1 = vec3_norm(vec3_cross(n, vec3_sub(p2, p1)));
if (vec3_dot(ln1, vec3_sub(p1, i)) > 0) continue;
if (f->p[3] == INVALID_POINT) {
/* triangle */
Vec3 ln2 = vec3_cross(n, vec3_sub(p0, p2));
Vec3 ln2 = vec3_norm(vec3_cross(n, vec3_sub(p0, p2)));
if (vec3_dot(ln2, vec3_sub(p2, i)) > 0) continue;
} else {
/* quad */
Vec3 p3 = point_to_vec3(oi, f->p[3]);
Vec3 ln2 = vec3_cross(n, vec3_sub(p3, p2));
Vec3 ln2 = vec3_norm(vec3_cross(n, vec3_sub(p3, p2)));
if (vec3_dot(ln2, vec3_sub(p2, i)) > 0) continue;
Vec3 ln3 = vec3_cross(n, vec3_sub(p0, p3));
Vec3 ln3 = vec3_norm(vec3_cross(n, vec3_sub(p0, p3)));
if (vec3_dot(ln3, vec3_sub(p3, i)) > 0) continue;
}