Improved instance bounding box computation

vkoskiv / c-ray

c-ray is a small, simple path tracer written in C

MIT License

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Improved instance bounding box computation #117

Closed madmann91 closed 7 months ago

madmann91 commented 7 months ago

This improves the bounding box computation for mesh instances. This directly results in a decrease of surface area of up to 25% in some cases (e.g. rotated instances). The performance increase is more modest, in the order of 5%.