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| author | Dan Goodliffe <dan@randomdan.homeip.net> | 2021-12-28 15:42:50 +0000 |
|---|---|---|
| committer | Dan Goodliffe <dan@randomdan.homeip.net> | 2021-12-28 15:42:50 +0000 |
| commit | de9909df038d1b6bb47bcc82fea5f8dc9dec2491 (patch) | |
| tree | b1f1337603c1bda68760d3f5f5147bc345e3e77f /gfx/gl | |
| parent | Component position mouse click check should only match mouse button events (diff) | |
| download | ilt-de9909df038d1b6bb47bcc82fea5f8dc9dec2491.tar.bz2 ilt-de9909df038d1b6bb47bcc82fea5f8dc9dec2491.tar.xz ilt-de9909df038d1b6bb47bcc82fea5f8dc9dec2491.zip | |
Initial implementation for being able to click in the main window to select something
Diffstat (limited to 'gfx/gl')
| -rw-r--r-- | gfx/gl/camera.cpp | 7 | ||||
| -rw-r--r-- | gfx/gl/camera.h | 1 |
2 files changed, 8 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)); +} diff --git a/gfx/gl/camera.h b/gfx/gl/camera.h index 72f699d..1d3f5b3 100644 --- a/gfx/gl/camera.h +++ b/gfx/gl/camera.h @@ -8,6 +8,7 @@ public: Camera(glm::vec3 pos, float fov, float aspect, float zNear, float zFar);
[[nodiscard]] glm::mat4 GetViewProjection() const;
+ [[nodiscard]] glm::vec3 unProject(const glm::vec2 &) const;
glm::vec3 pos;
glm::vec3 forward;
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