camera settings */
| 15 | { |
| 16 | /* camera settings */ |
| 17 | struct Camera |
| 18 | { |
| 19 | enum Handedness { |
| 20 | LEFT_HANDED, |
| 21 | RIGHT_HANDED |
| 22 | }; |
| 23 | |
| 24 | struct ISPCCamera |
| 25 | { |
| 26 | public: |
| 27 | ISPCCamera (const AffineSpace3f& xfm) |
| 28 | : xfm(xfm) {} |
| 29 | |
| 30 | public: |
| 31 | AffineSpace3f xfm; |
| 32 | float render_time = 0.0f; |
| 33 | }; |
| 34 | |
| 35 | public: |
| 36 | |
| 37 | Camera () |
| 38 | : from(0.0001f,0.0001f,-3.0f), to(0,0,0), up(0,1,0), fov(90), handedness(RIGHT_HANDED) {} |
| 39 | |
| 40 | Camera (const Vec3fa& from, const Vec3fa& to, const Vec3fa& up, float fov, Handedness handedness) |
| 41 | : from(from), to(to), up(up), fov(fov), handedness(handedness) {} |
| 42 | |
| 43 | Camera (const SceneGraph::PerspectiveCameraData& cam, Handedness handedness) |
| 44 | : from(cam.from), to(cam.to), up(cam.up), fov(cam.fov), handedness(handedness) {} |
| 45 | |
| 46 | std::string str() const |
| 47 | { |
| 48 | std::stringstream stream; |
| 49 | stream.precision(10); |
| 50 | stream << "--vp " << from.x << " " << from.y << " " << from.z << " " |
| 51 | << "--vi " << to.x << " " << to.y << " " << to.z << " " |
| 52 | << "--vu " << up.x << " " << up.y << " " << up.z << " " |
| 53 | << "--fov " << fov << " " |
| 54 | << (handedness == LEFT_HANDED ? "--lefthanded" : "--righthanded"); |
| 55 | return stream.str(); |
| 56 | } |
| 57 | |
| 58 | AffineSpace3fa camera2world () |
| 59 | { |
| 60 | AffineSpace3fa local2world = AffineSpace3fa::lookat(from, to, up); |
| 61 | if (!(local2world == local2world)) |
| 62 | throw std::runtime_error("invalid camera specified"); |
| 63 | |
| 64 | if (handedness == RIGHT_HANDED) |
| 65 | local2world.l.vx = -local2world.l.vx; |
| 66 | |
| 67 | return local2world; |
| 68 | } |
| 69 | AffineSpace3fa world2camera () { return rcp(camera2world()); } |
| 70 | Vec3fa world2camera(const Vec3fa& p) { return xfmPoint(world2camera(),p); } |
| 71 | Vec3fa camera2world(const Vec3fa& p) { return xfmPoint(camera2world(),p); } |
| 72 | |
| 73 | ISPCCamera getISPCCamera (size_t width, size_t height) |
| 74 | { |
no outgoing calls
no test coverage detected