diff options
Diffstat (limited to 'core/math/camera_matrix.cpp')
| -rw-r--r-- | core/math/camera_matrix.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/core/math/camera_matrix.cpp b/core/math/camera_matrix.cpp index 9ec71af57f..7dbda1d149 100644 --- a/core/math/camera_matrix.cpp +++ b/core/math/camera_matrix.cpp @@ -74,6 +74,15 @@ Plane CameraMatrix::xform4(const Plane &p_vec4) const { return ret; } +void CameraMatrix::adjust_perspective_znear(real_t p_new_znear) { + real_t zfar = get_z_far(); + real_t znear = p_new_znear; + + real_t deltaZ = zfar - znear; + matrix[2][2] = -(zfar + znear) / deltaZ; + matrix[3][2] = -2 * znear * zfar / deltaZ; +} + void CameraMatrix::set_perspective(real_t p_fovy_degrees, real_t p_aspect, real_t p_z_near, real_t p_z_far, bool p_flip_fov) { if (p_flip_fov) { p_fovy_degrees = get_fovy(p_fovy_degrees, 1.0 / p_aspect); |