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Draw Next: Fix shader orco computation

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This commit is contained in:
Miguel Pozo 2023-03-02 17:49:16 +01:00
parent 8c29d84139
commit 2a9f792c9e
1 changed files with 4 additions and 7 deletions
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11
source/blender/draw/intern/shaders/draw_resource_finalize_comp.glsl
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@ -54,11 +54,8 @@ void main()
vec3 loc = infos.orco_add; /* Box center. */
vec3 size = infos.orco_mul; /* Box half-extent. */
/* This is what the original computation looks like.
* Simplify to a nice MADD in shading code. */
// orco = (pos - loc) / size;
// orco = pos * (1.0 / size) + (-loc / size);
vec3 size_inv = safe_rcp(size);
infos_buf[resource_id].orco_add = -loc * size_inv;
infos_buf[resource_id].orco_mul = size_inv;
vec3 orco_mul = safe_rcp(size * 2.0);
vec3 orco_add = (loc - size) * -orco_mul;
infos_buf[resource_id].orco_add = orco_add;
infos_buf[resource_id].orco_mul = orco_mul;
}