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FOV is now calculate along the height, not the width (for proper ultrawide

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support)
This commit is contained in:
Marco Cawthorne 2021-06-26 11:20:42 +02:00
parent 6e0aea25aa
commit 21d88fbec5
1 changed files with 4 additions and 4 deletions
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8
src/camwindow.cpp
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@ -179,7 +179,7 @@ struct camera_t {
color(0, 0, 0), color(0, 0, 0),
movementflags(0), movementflags(0),
m_keymove_handler(0), m_keymove_handler(0),
fieldOfView(100.0f), fieldOfView(90.0f),
m_mouseMove(motionDelta, this), m_mouseMove(motionDelta, this),
m_view(view), m_view(view),
m_update(update) m_update(update)
@ -192,13 +192,13 @@ camera_draw_mode camera_t::draw_mode = cd_texture;
inline Matrix4 projection_for_camera(float near_z, float far_z, float fieldOfView, int width, int height) inline Matrix4 projection_for_camera(float near_z, float far_z, float fieldOfView, int width, int height)
{ {
const float half_width = static_cast<float>( near_z * tan(degrees_to_radians(fieldOfView * 0.5))); const float half_width = static_cast<float>( near_z * tan(degrees_to_radians(fieldOfView * 0.5)));
const float half_height = half_width * (static_cast<float>( height ) / static_cast<float>( width )); const float half_height = half_width * (static_cast<float>( width ) / static_cast<float>( height ));
return matrix4_frustum( return matrix4_frustum(
-half_width,
half_width,
-half_height, -half_height,
half_height, half_height,
-half_width,
half_width,
near_z, near_z,
far_z far_z
); );