forked from bartvdbraak/blender
Draw Next: Fix shader orco computation
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8c29d84139
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2a9f792c9e
@ -54,11 +54,8 @@ void main()
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vec3 loc = infos.orco_add; /* Box center. */
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vec3 size = infos.orco_mul; /* Box half-extent. */
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/* This is what the original computation looks like.
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* Simplify to a nice MADD in shading code. */
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// orco = (pos - loc) / size;
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// orco = pos * (1.0 / size) + (-loc / size);
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vec3 size_inv = safe_rcp(size);
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infos_buf[resource_id].orco_add = -loc * size_inv;
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infos_buf[resource_id].orco_mul = size_inv;
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vec3 orco_mul = safe_rcp(size * 2.0);
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vec3 orco_add = (loc - size) * -orco_mul;
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infos_buf[resource_id].orco_add = orco_add;
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infos_buf[resource_id].orco_mul = orco_mul;
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}
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