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@jamis
I’m getting odd values for my color calculations in tests 4 and 5 in the reflection section-
github.com/zdybak/ray
The tests ar...
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Title: Ray Trace Challenge: Inversion pg 49
I have gotten all my code (including my matrix multiplication and inversion routines) to pas...
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@jamis
Please use the following format for the title of this thread (then simply delete/replace this text with the content for the threa...
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@jamis
At the end of Chapter 14 the book briefly mentions that materials applied to groups have no effect on children shapes. I’d like ...
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@jamis
After introducing the ideas of tuples, vectors, and points, the book goes on to say:
But looking at (4, -4, 3) and (-4, 4, -3) ...
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@jamis
I’ve been handling 2x2, 3x3, and 4x4 matrices just fine. In fact my code handles NxM matrices right now but I’ve noticed all of ...
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Hi,
I’m stuck on the test for #7 “Intersecting the caps of a closed cylinder”.
Tests 3 & 5 are failing as the intersections count i...
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@jamis
Unfortunately, my final image of chapter 7 is flipped:
All the tests from the chapter pass.
My camera and ray generation are...
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Hi @jamis,
I’m not sure if this has been discussed elsewhere, so apologies for a potential duplicate.
I refer to cone normal calculatio...
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Hi, I’m working on the Chapter 8 of the book.
After I add add the point_offset, I’m still able to see acne:
In the image above, I re...
New
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Title: Ray Trace Challenge: Inversion pg 49
I have gotten all my code (including my matrix multiplication and inversion routines) to pas...
New
@jamis
I’m getting odd values for my color calculations in tests 4 and 5 in the reflection section-
github.com/zdybak/ray
The tests ar...
New
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Author Spotlight: Jamis Buck (@jamis)
This month, we have the pleasure of spotlighting author Jamis Buck, who has written Mazes for P...
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Think Again 50% Off Sale »
The theme of this sale is new perspectives on familiar topics.
Enter coupon code ThinkAgain2021 at checkout t...
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The following is cross-posted from the original Ray Tracer Challenge forum, from a post by garfieldnate. I’m cross-posting it so that the...
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The Ray Tracer Challenge by @jamis: p. 28
It appears to me that on page 28, there is an error. The first column of the features/matrices...
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Feels like a slightly redundant question at this point (since I can already see a lot of similar repos on GitHub), but just to check - is...
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The test is as follows:
Scenario: Intersecting a scaled sphere with a ray
Given r ← ray(point(0, 0, -5), vector(0, 0, 1))
And s ← sphere...
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Hi & thanks for the book!
I’m following the book building a ray tracer and would like to publish the code it as open source. I’m usi...
New
Hi, I’m working on the Chapter 8 of the book.
After I add add the point_offset, I’m still able to see acne:
In the image above, I re...
New
Also posted to the old forums.
Hello there!
I just finished chapter 8, and I now have shadows! Yay!
However, when I ran the whole test...
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@jamis
Page 130 I render the wall ok by rotating the plane in x PI/2 as he says to do on page 125.
However I get a massive shadow acros...
New
Hi @jamis,
I’m not sure if this has been discussed elsewhere, so apologies for a potential duplicate.
I refer to cone normal calculatio...
New
@jamis
Unfortunately, my final image of chapter 7 is flipped:
All the tests from the chapter pass.
My camera and ray generation are...
New
On Page 37. How to calculate the cofactor for a 4x4 matrix is never shown. Only the 3x3.
How is the author getting the cofactor(A,0,0) =...
New
@jamis
I’ve been handling 2x2, 3x3, and 4x4 matrices just fine. In fact my code handles NxM matrices right now but I’ve noticed all of ...
New
@jamis
After introducing the ideas of tuples, vectors, and points, the book goes on to say:
But looking at (4, -4, 3) and (-4, 4, -3) ...
New
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