diff options
Diffstat (limited to 'gfx/gl/camera.cpp')
| -rw-r--r-- | gfx/gl/camera.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gfx/gl/camera.cpp b/gfx/gl/camera.cpp index 5a90d84..905f78e 100644 --- a/gfx/gl/camera.cpp +++ b/gfx/gl/camera.cpp @@ -12,3 +12,10 @@ Camera::GetViewProjection() const { return projection * glm::lookAt(pos, pos + forward, up); } + +glm::vec3 +Camera::unProject(const glm::vec2 & mouse) const +{ + static constexpr const glm::vec4 screen {0, 0, 1, 1}; + return glm::normalize(glm::unProject(mouse ^ 1, glm::lookAt(::origin, forward, up), projection, screen)); +} |