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Add FRUSTUM camera mode, allowing tilted frustums

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This new camera mode makes it easy to create tilted frustums for mirror
or portal effects.

This work was kindly sponsored by IMVU.
This commit is contained in:
JFonS
2019-02-19 17:17:02 +01:00
parent c7ba1e210e
commit 54b95b6c5a
11 changed files with 133 additions and 27 deletions
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8
core/math/camera_matrix.cpp
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@@ -210,6 +210,14 @@ void CameraMatrix::set_frustum(real_t p_left, real_t p_right, real_t p_bottom, r
te[15] = 0;
}
void CameraMatrix::set_frustum(real_t p_size, real_t p_aspect, Vector2 p_offset, real_t p_near, real_t p_far, bool p_flip_fov) {
if (!p_flip_fov) {
p_size *= p_aspect;
}
set_frustum(-p_size / 2 + p_offset.x, +p_size / 2 + p_offset.x, -p_size / p_aspect / 2 + p_offset.y, +p_size / p_aspect / 2 + p_offset.y, p_near, p_far);
}
real_t CameraMatrix::get_z_far() const {
const real_t *matrix = (const real_t *)this->matrix;