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Fix T71795: Unproject with high clipping range sometimes results in nans 

Differential Revision: https://developer.blender.org/D6311
This commit is contained in:
Germano Cavalcante 2019-12-19 11:44:50 -03:00
parent 56fc0f411f
commit 26e4f4a8c4
Notes: blender-bot 2023-02-14 09:29:42 +01:00 
Referenced by issue #71795, Too high clipping range + Auto Depth may send view location to oblivion
1 changed files with 5 additions and 0 deletions
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5
source/blender/gpu/intern/gpu_matrix.c
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@ -535,6 +535,11 @@ bool GPU_matrix_unproject_precalc(struct GPUMatrixUnproject_Precalc *precalc,
&precalc->dims.ymax,
&precalc->dims.zmin,
&precalc->dims.zmax);
if (isinf(precalc->dims.zmax)) {
/* We cannot retrieve the actual value of the clip_end.
* Use `FLT_MAX` to avoid nans. */
precalc->dims.zmax = FLT_MAX;
}
for (int i = 0; i < 4; i++) {
precalc->view[i] = (float)view[i];
}