diff options
| author | Germano <germano.costa@ig.com.br> | 2018-04-16 20:34:32 +0300 |
|---|---|---|
| committer | Germano <germano.costa@ig.com.br> | 2018-04-16 20:34:32 +0300 |
| commit | 2b0b4133c8ced3dc569b787873883f44ec9c8979 (patch) | |
| tree | e88f95e6ae0a666151071f85cf0f062a7e00899d /source/blender/draw/intern/draw_manager_exec.c | |
| parent | 15b841f5dc1600e5612d1d1b5dbb209f1beb7158 (diff) | |
DRW: Culling: Fix algorithm for asymmetric perspective frustum reconstruction.
Diffstat (limited to 'source/blender/draw/intern/draw_manager_exec.c')
| -rw-r--r-- | source/blender/draw/intern/draw_manager_exec.c | 23 |
1 files changed, 10 insertions, 13 deletions
diff --git a/source/blender/draw/intern/draw_manager_exec.c b/source/blender/draw/intern/draw_manager_exec.c index d37a8a643f9..0ff5522c109 100644 --- a/source/blender/draw/intern/draw_manager_exec.c +++ b/source/blender/draw/intern/draw_manager_exec.c @@ -395,23 +395,20 @@ static void draw_frustum_boundbox_calc(const float(*projmat)[4], BoundBox *r_bbo bool is_persp = projmat[3][3] == 0.0f; if (is_persp) { - float w_half, h_half; near = projmat[3][2] / (projmat[2][2] - 1.0f); far = projmat[3][2] / (projmat[2][2] + 1.0f); - w_half = near / projmat[0][0]; - h_half = near / projmat[1][1]; - left = projmat[2][0] - w_half; - right = projmat[2][0] + w_half; - bottom = projmat[2][1] - h_half; - top = projmat[2][1] + h_half; + left = near * (projmat[2][0] - 1.0f) / projmat[0][0]; + right = near * (projmat[2][0] + 1.0f) / projmat[0][0]; + bottom = near * (projmat[2][1] - 1.0f) / projmat[1][1]; + top = near * (projmat[2][1] + 1.0f) / projmat[1][1]; } else { - near = (projmat[3][2] + 1.0f) / projmat[2][2]; - far = (projmat[3][2] - 1.0f) / projmat[2][2]; - left = (-1.0f - projmat[3][0]) / projmat[0][0]; - right = (1.0f - projmat[3][0]) / projmat[0][0]; - bottom = (-1.0f - projmat[3][1]) / projmat[1][1]; - top = (1.0f - projmat[3][1]) / projmat[1][1]; + near = ( projmat[3][2] + 1.0f) / projmat[2][2]; + far = ( projmat[3][2] - 1.0f) / projmat[2][2]; + left = (-projmat[3][0] - 1.0f) / projmat[0][0]; + right = (-projmat[3][0] + 1.0f) / projmat[0][0]; + bottom = (-projmat[3][1] - 1.0f) / projmat[1][1]; + top = (-projmat[3][1] + 1.0f) / projmat[1][1]; } r_bbox->vec[0][2] = r_bbox->vec[3][2] = r_bbox->vec[7][2] = r_bbox->vec[4][2] = -near; |