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Atoms 2-3 work for resolve look at. Don't need OA_ macro so going to stop using.

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ed
2026-08-11 21:35:59 -04:00
parent 7daeec0ee3
commit 7807047dc0
6 changed files with 100 additions and 62 deletions
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code/hello_camera/hello_camera.c
+7 -9
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@@ -276,10 +276,10 @@ I_ void resolve_look_at(
tb_data(tb, u4_(smem.scratchpad)); /* Binds_ResolveLookAtScratch.scratch_base */
}
/* Atoms 1-5: disabled (atom 1 verification below) */
/* Atoms 1 + 2: enabled. */
tb_emit(tb, smem.resolve_look_at_atom_addrs[1]); { }
// tb_emit(tb, smem.resolve_look_at_atom_addrs[2]); { }
// tb_emit(tb, smem.resolve_look_at_atom_addrs[3]); { }
tb_emit(tb, smem.resolve_look_at_atom_addrs[2]); { }
tb_emit(tb, smem.resolve_look_at_atom_addrs[3]); { }
// tb_emit(tb, smem.resolve_look_at_atom_addrs[4]); { }
// tb_emit(tb, smem.resolve_look_at_atom_addrs[5]); { }
@@ -357,13 +357,11 @@ void update(PrimitiveArena* pa, U4* ordering_buf)
// Atom 0: Works (tape emits fwd to scratch+0; C-side reads it back)
forward = scratch->fwd;
uz = scratch->uz;
right = scratch->right;
ux = scratch->ux;
// C-side normalize fallback (atom 1 disabled)
// normalize_v3s4(& forward, & uz);
uz = scratch->uz; /* tape-side: enable after verifying atom 1 fix */
cross_v3s4(& uz, & v3s4(0, -fp_one, 0), & right); normalize_v3s4(& right, & ux);
cross_v3s4(& uz, & ux, & up); normalize_v3s4(& up, & uy);
cross_v3s4(& uz, & ux, & up); normalize_v3s4(& up, & uy);
smem.cam.look_at.m[0][0] = ux.x; smem.cam.look_at.m[0][1] = ux.y; smem.cam.look_at.m[0][2] = ux.z;
smem.cam.look_at.m[1][0] = uy.x; smem.cam.look_at.m[1][1] = uy.y; smem.cam.look_at.m[1][2] = uy.z;