ed/pikuma_ps1
1
0
Fork 0
mirror of https://github.com/Ed94/pikuma_ps1.git synced 2026-08-14 11:38:14 +00:00
Code Issues Packages Projects Releases Wiki Activity

WIP: preparing for major changes to atoms to fullfill needs of resolve_look_at and atom ported normalize_v3s4.

Browse Source
This commit is contained in:
ed
2026-08-09 18:49:59 -04:00
parent 69f2c0d036
commit e42c75a26a
14 changed files with 625 additions and 97 deletions
Download Patch File Download Diff File Expand all files Collapse all files
code/hello_camera/hello_camera.c
+33 -5
View File
@@ -172,12 +172,12 @@ void update(PrimitiveArena* pa, U4* ordering_buf)
S4 flag; //????
// Camera Look at
if (1)
if (0)
{
camera_look_at_c11(& smem.cam, & smem.cube.pos, & v3s4(0, -fp_one, 0));
}
// Camera look at (Tape)
if (0)
if (1)
{
MT3_S2S4* look_at = & smem.cam.look_at;
P3_S4* eye = & smem.cam.pos;
@@ -188,8 +188,36 @@ void update(PrimitiveArena* pa, U4* ordering_buf)
V3_S4 pos, off;
tb.used = 0; tb_scope_run(& tb) {
tb_emit_(resolve_look_at);
// tb_data_();
// tb_emit_bundle(resolve_look_at);
{
tb_emit_(resolve_look_at); {
tb_data_(look_at, & smem.cam.look_at);
tb_data_(eye, & smem.cam.pos);
tb_data_(target, & smem.cube.pos);
tb_data_(up_in, up_in);
// tb_emit(a_normalize_v3s4(/*Todo: resolve dependent register allocation*/));
// tb_data_(fwd_out);
}
#if 0
{
tb_emit_(resolve_look_at__resolve_right); {
//...
tb_emit_(a_normalize_v3s4(...));
tb_data_(right_out);
}
tb_emit(resolve_look_at__resolve_up); {
//...
tb_emit_(ac_normalize_v3s4(...));
tb_data_(up_out);
}
tb_emit(world_to_cam_expand_mt3_s2s4(...)); {
tb_data(look_at, & smem.cam.look_at);
}
tb_emit_(resolve_look_at__final); {
}
}
#endif
}
}
// forward = target[0]; sub_v3s4(& forward, eye[0]); // RGA(Lengyel): Affine point - point = zero-weight direction.
@@ -205,7 +233,7 @@ void update(PrimitiveArena* pa, U4* ordering_buf)
pos = eye[0]; mul_v3s4(& pos, v3s4(-1,-1,-1)); // RGA(Lengyel): -eye in world coordinates (spatial bulk only; implicit weight is dropped).
// RGA(Lengyel): R * (-eye) is the full matrix translation column.
// RGA(Lengyel): R * (-eye) -- full matrix translation column.
// Motor translator would store half this displacement in m.xyz; GTE consumes full column.
mul_m3s2_v3s4(look_at, & pos, & off);
trans_m3s2( look_at, & off);