Render eye view with off-center projection to better match visible area

[libs/vr.git] / source / stereoview.cpp

diff --git a/source/stereoview.cpp b/source/stereoview.cpp
index c52802309ef5119677e2451ddc81c9a63717a1cb..08949e653599509021f24eb29b2f9b37f41a6826 100644 (file)
--- a/source/stereoview.cpp
+++ b/source/stereoview.cpp
@@ -49,8 +49,10 @@ void StereoView::setup_frame() const
        params.near_clip = base_camera.get_near_clip();
        params.far_clip = base_camera.get_far_clip();
 
-       left.setup_frame(base_camera, offset_axis*-eye_spacing, params);
-       right.setup_frame(base_camera, offset_axis*eye_spacing, params);
+       float frustum_skew = combiner->get_frustum_skew();
+
+       left.setup_frame(base_camera, offset_axis*-eye_spacing, frustum_skew, params);
+       right.setup_frame(base_camera, offset_axis*eye_spacing, -frustum_skew, params);
 
        renderable.setup_frame();
 }
@@ -98,7 +100,7 @@ void StereoView::Eye::create_target(unsigned w, unsigned h)
        target = new RenderTarget(w, h);
 }
 
-void StereoView::Eye::setup_frame(const GL::Camera &base_camera, const GL::Vector3 &offset, const EyeParams &params) const
+void StereoView::Eye::setup_frame(const GL::Camera &base_camera, const GL::Vector3 &offset, float frustum_skew, const EyeParams &params) const
 {
        camera.set_position(base_camera.get_position()+offset);
        camera.set_up_direction(base_camera.get_up_direction());
@@ -107,6 +109,7 @@ void StereoView::Eye::setup_frame(const GL::Camera &base_camera, const GL::Vecto
        camera.set_field_of_view(params.fov);
        camera.set_aspect(params.aspect);
        camera.set_depth_clip(params.near_clip, params.far_clip);
+       camera.set_frustum_axis(frustum_skew, 0);
 }
 
 void StereoView::Eye::render(const GL::Renderable &renderable, const GL::Tag &tag) const