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Merge pull request #91140 from RadiantUwU/add-mobile-vr-screen-rect

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Add a new property named `offset_rect` to `MobileVRInterface`
This commit is contained in:
Rémi Verschelde 2024-05-02 17:31:28 +02:00
commit 7a968c619d
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GPG Key ID: C3336907360768E1
3 changed files with 25 additions and 3 deletions
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3
modules/mobile_vr/doc_classes/MobileVRInterface.xml
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@ -34,6 +34,9 @@
<member name="k2" type="float" setter="set_k2" getter="get_k2" default="0.215">
The k2 lens factor, see k1.
</member>
<member name="offset_rect" type="Rect2" setter="set_offset_rect" getter="get_offset_rect" default="Rect2(0, 0, 1, 1)">
Set the offset rect relative to the area being rendered. A length of 1 represents the whole rendering area on that axis.
</member>
<member name="oversample" type="float" setter="set_oversample" getter="get_oversample" default="1.5">
The oversample setting. Because of the lens distortion we have to render our buffers at a higher resolution then the screen can natively handle. A value between 1.5 and 2.0 often provides good results but at the cost of performance.
</member>

20
modules/mobile_vr/mobile_vr_interface.cpp
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@ -230,6 +230,9 @@ void MobileVRInterface::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_display_to_lens", "display_to_lens"), &MobileVRInterface::set_display_to_lens);
ClassDB::bind_method(D_METHOD("get_display_to_lens"), &MobileVRInterface::get_display_to_lens);
ClassDB::bind_method(D_METHOD("set_offset_rect", "offset_rect"), &MobileVRInterface::set_offset_rect);
ClassDB::bind_method(D_METHOD("get_offset_rect"), &MobileVRInterface::get_offset_rect);
ClassDB::bind_method(D_METHOD("set_oversample", "oversample"), &MobileVRInterface::set_oversample);
ClassDB::bind_method(D_METHOD("get_oversample"), &MobileVRInterface::get_oversample);
@ -243,6 +246,7 @@ void MobileVRInterface::_bind_methods() {
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "iod", PROPERTY_HINT_RANGE, "4.0,10.0,0.1"), "set_iod", "get_iod");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "display_width", PROPERTY_HINT_RANGE, "5.0,25.0,0.1"), "set_display_width", "get_display_width");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "display_to_lens", PROPERTY_HINT_RANGE, "5.0,25.0,0.1"), "set_display_to_lens", "get_display_to_lens");
ADD_PROPERTY(PropertyInfo(Variant::RECT2, "offset_rect"), "set_offset_rect", "get_offset_rect");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "oversample", PROPERTY_HINT_RANGE, "1.0,2.0,0.1"), "set_oversample", "get_oversample");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "k1", PROPERTY_HINT_RANGE, "0.1,10.0,0.0001"), "set_k1", "get_k1");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "k2", PROPERTY_HINT_RANGE, "0.1,10.0,0.0001"), "set_k2", "get_k2");
@ -256,6 +260,14 @@ double MobileVRInterface::get_eye_height() const {
return eye_height;
}
void MobileVRInterface::set_offset_rect(const Rect2 &p_offset_rect) {
offset_rect = p_offset_rect;
}
Rect2 MobileVRInterface::get_offset_rect() const {
return offset_rect;
}
void MobileVRInterface::set_iod(const double p_iod) {
intraocular_dist = p_iod;
};
@ -483,6 +495,8 @@ Vector<BlitToScreen> MobileVRInterface::post_draw_viewport(RID p_render_target,
// Because we are rendering to our device we must use our main viewport!
ERR_FAIL_COND_V(p_screen_rect == Rect2(), blit_to_screen);
Rect2 modified_screen_rect = Rect2(p_screen_rect.position + offset_rect.position * p_screen_rect.size, p_screen_rect.size * offset_rect.size);
// and add our blits
BlitToScreen blit;
blit.render_target = p_render_target;
@ -494,16 +508,16 @@ Vector<BlitToScreen> MobileVRInterface::post_draw_viewport(RID p_render_target,
blit.lens_distortion.aspect_ratio = aspect;
// left eye
blit.dst_rect = p_screen_rect;
blit.dst_rect = modified_screen_rect;
blit.dst_rect.size.width *= 0.5;
blit.multi_view.layer = 0;
blit.lens_distortion.eye_center.x = ((-intraocular_dist / 2.0) + (display_width / 4.0)) / (display_width / 2.0);
blit_to_screen.push_back(blit);
// right eye
blit.dst_rect = p_screen_rect;
blit.dst_rect = modified_screen_rect;
blit.dst_rect.size.width *= 0.5;
blit.dst_rect.position.x = blit.dst_rect.size.width;
blit.dst_rect.position.x += blit.dst_rect.size.width;
blit.multi_view.layer = 1;
blit.lens_distortion.eye_center.x = ((intraocular_dist / 2.0) - (display_width / 4.0)) / (display_width / 2.0);
blit_to_screen.push_back(blit);

5
modules/mobile_vr/mobile_vr_interface.h
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@ -62,6 +62,8 @@ private:
double display_to_lens = 4.0;
double oversample = 1.5;
Rect2 offset_rect = Rect2(0, 0, 1, 1); // Full screen rect.
double k1 = 0.215;
double k2 = 0.215;
double aspect = 1.0;
@ -121,6 +123,9 @@ public:
void set_display_width(const double p_display_width);
double get_display_width() const;
void set_offset_rect(const Rect2 &p_offset_rect);
Rect2 get_offset_rect() const;
void set_display_to_lens(const double p_display_to_lens);
double get_display_to_lens() const;