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error with The reflected color for a reflective material

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jonoke
New Member

Posts: 13

error with The reflected color for a reflective material Jun 23, 2022 3:17:23 GMT

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Post by jonoke on Jun 23, 2022 3:17:23 GMT

for this test the expected result is

Colour(0.1903200, 0.2379000, 0.1427400)

but I get

Colour(0.1903323, 0.2379154, 0.1427492)

red and green are out of bounds with an epsilon of 0.00001

should I try to track this down?
how accurate should this test be?

I'm using F# with floats for everything which are 64bit.

Jonathan.

Jamis
Administrator

Posts: 310

error with The reflected color for a reflective material Jun 23, 2022 22:11:51 GMT

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Post by Jamis on Jun 23, 2022 22:11:51 GMT

You're fine. For simplicity's sake (and to make the tests easier to format in the book), the tests truncate the expected floating point numbers. If you're within that epsilon, it's correct "enough".