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vr:: fixed apply_movement to be geodesic-based not embedded-based in H2.5; also added new eHeadset holonomy_z

This commit is contained in:
Zeno Rogue 2023-02-21 18:50:36 +01:00
parent a07dac637b
commit 19fbb43bab
1 changed files with 58 additions and 9 deletions
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67
vr.cpp
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@ -30,7 +30,7 @@ EX bool rendering() { return state == 2 || state == 4; }
EX bool rendering_eye() { return state == 2; }
#if HDR
enum class eHeadset { none, rotation_only, reference, holonomy, model_viewing };
enum class eHeadset { none, rotation_only, reference, holonomy, model_viewing, holonomy_z };
enum class eEyes { none, equidistant, truesim };
enum class eCompScreen { none, reference, single, eyes };
#endif
@ -53,7 +53,8 @@ vector<pair<string, string> > headset_desc = {
{"reference", "The reference point in the real world corresponds to the reference point in VR. When you move your head in a loop, you return to where you started."},
{"holonomy", "Headsets movements in the real world are translated to the same movements in VR. Since the geometry is different, when you move your head in a loop, you usually don't return "
"to where you started."},
{"view model", "Fix a 3D projection of the non-Euclidean world, and see it from many viewpoints."}
{"view model", "Fix a 3D projection of the non-Euclidean world, and see it from many viewpoints."},
{"holonomy Z", "in 2D geometries rendered in 3D, like holonomy, but keep the correct altitude and vertical direction."},
};
vector<pair<string, string> > eyes_desc = {
@ -497,12 +498,19 @@ EX void be_33(transmatrix& T) {
T[3][3] = 1;
}
EX void apply_movement(const transmatrix& rel) {
eShiftMethod smVR() {
if(gproduct) return smProduct;
if(!nisot::geodesic_movement) return smLie;
if(nonisotropic || stretch::in()) return smGeodesic;
return smIsotropic;
}
EX void apply_movement(const transmatrix& rel, eShiftMethod sm) {
hyperpoint h0 = IN_E4(inverse(rel) * C0);
hyperpoint h = h0;
for(int i=0; i<3; i++) h[i] /= -absolute_unit_in_meters;
shift_view(h);
shift_view(h, sm);
transmatrix Rot = rel;
be_33(Rot);
rotate_view(Rot);
@ -512,13 +520,54 @@ EX void vr_shift() {
if(first) return;
rug::using_rugview urv;
if(GDIM == 2) return;
auto hsm1 = hsm;
if(hsm1 == eHeadset::holonomy_z && !embedded_plane) hsm1 = eHeadset::holonomy;
if(GDIM == 3 && hsm == eHeadset::holonomy) {
apply_movement(IN_E4(hmd_at * inverse(hmd_ref_at)));
if(hsm1 == eHeadset::holonomy) {
apply_movement(IN_E4(hmd_at * inverse(hmd_ref_at)), smVR());
hmd_ref_at = hmd_at;
playermoved = false;
if(!rug::rugged) optimizeview();
}
if(hsm1 == eHeadset::holonomy_z) {
apply_movement(IN_E4(hmd_at * inverse(hmd_ref_at)), smEmbedded);
hmd_ref_at = hmd_at;
playermoved = false;
bool below = cgi.WALL < cgi.FLOOR;
if(vid.fixed_yz) {
transmatrix spin_T;
ld eye_level;
if(1) {
dynamicval<eGeometry> g(geometry, gCubeTiling);
spin_T = vrhr::hmd_at;
spin_T = vrhr::sm * inverse(spin_T);
eye_level = -spin_T[1][3] / vrhr::absolute_unit_in_meters;
vrhr::be_33(spin_T);
}
// auto shift = vrhr::sm * (inverse(hmd_at) * C0 - inverse(hmd_ref_at) * C0);
hyperpoint h = tC0(view_inverse(actual_view_transform * View));
auto lcur = cgi.emb->get_logical_z(h);
auto lnew = cgi.FLOOR + (below?-1:1) * eye_level;
println(hlog, "lcur = ", lcur, " lnew = ", lnew, " below = ", below);
if(1) {
hyperpoint p = Hypc;
p[1] = lcur - lnew;
p = hmd_ref_at * p;
if(below) p = -1 * p;
shift_view(p, smVR());
}
}
if(!rug::rugged) optimizeview();
}
}
EX ld absolute_unit_in_meters = 3;
@ -1068,15 +1117,15 @@ EX void render() {
if(hsm == eHeadset::rotation_only) {
transmatrix T = hmd_at;
be_33(T);
apply_movement(T);
apply_movement(T, smVR());
}
else if(GDIM == 3 && hsm == eHeadset::reference) {
apply_movement(IN_E4(hmd_at * inverse(hmd_ref_at)));
apply_movement(IN_E4(hmd_at * inverse(hmd_ref_at)), smVR());
}
if(eyes == eEyes::truesim && i != 2) {
apply_movement(IN_E4(inverse(vrdata.eyepos[i])));
apply_movement(IN_E4(inverse(vrdata.eyepos[i])), smVR());
}
make_actual_view();