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(...) You guys are both wrong, OpenGL is NOT column major. This is one of the biggest mistakes I keep hearing people repeat about OpenGL. The API doesn't care if you use column major or row major matrices, it just expects an array of 16 floats with (...) (17 years ago, 21-Aug-07, to lugnet.cad)
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| | Re: LDraw File Format Spec 1.0 DRAFT - Call for Public Comments
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(...) The OpenGL 2.1 specification: page 23 Vertex Arrays "Matrices are loaded into these slots in column major order." page 43 Matrices LoadMatrix takes a pointer to a 4 × 4 matrix stored in column-major order as 16 consecutive floating-point (...) (17 years ago, 22-Aug-07, to lugnet.cad)
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| | Re: LDraw File Format Spec 1.0 DRAFT - Call for Public Comments
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(...) I think we'll just include two examples of how the data would go into a matrix in the two different directions and leave it at that. At this point, I think the best thing would be to add something like the following to the currently proposed (...) (17 years ago, 22-Aug-07, to lugnet.cad)
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| | Re: LDraw File Format Spec 1.0 DRAFT - Call for Public Comments
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(...) So we may considered this fully, please give your reasons for this request. The file names always fall at the end of the line, so, "because it's easier to parse" has already been considered by the LSC and discarded many thanks William Howard (17 years ago, 22-Aug-07, to lugnet.cad)
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| | Re: LDraw File Format Spec 1.0 DRAFT - Call for Public Comments
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(...) That's true. However, unless I'm badly mistaken, in addition to the xyz1 being at the end, you also need the other parameters to be in the proper direction in order to get the results that the LDraw library wants. The following two matrices (...) (17 years ago, 22-Aug-07, to lugnet.cad)
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| | Re: LDraw File Format Spec 1.0 DRAFT - Call for Public Comments
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(...) I thought I'd add a clarification to the above. A quick look at LDView's (URL) Change History> file will show that I only added support for spaces in submodel filenames in version 3.0. Furthermore, I listed it as an addition, not a bug fix, (...) (17 years ago, 22-Aug-07, to lugnet.cad, FTX)
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| | Re: LDraw File Format Spec 1.0 DRAFT - Call for Public Comments
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(...) Those matrices would be wrong in both cases (assuming xyz is the translation), you probably swapped those with the next matrices. :) (...) The first one here is a column major and the second is a row major matrix, and you are right, they are (...) (17 years ago, 22-Aug-07, to lugnet.cad)
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| | Re: LDraw File Format Spec 1.0 DRAFT - Call for Public Comments
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(...) My issue with spaces is not with programs supporting them or not, it's that the elements inside a line are delimited by spaces, you have 1 <space> color <space> x <space> ... <part> but then when it comes to file names that rule is broken. I (...) (17 years ago, 22-Aug-07, to lugnet.cad)
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| | Re: OpenGL spec (was LDraw File Format spec)
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(...) As this thread is for the discussion of the LDraw specification can any further debate of what the OpenGL specification may or may not say please be continued on .off-topic.debate Thanks William (17 years ago, 23-Aug-07, to lugnet.cad)
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| | Re: LDraw File Format Spec 1.0 DRAFT - Call for Public Comments
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(...) Ok, the whitespace debate has gone on long enough. It's been years now! Someone in the LSC needs to step up and really define what's an acceptable filename, whitespace and all. Personally I think since MLCad is established, popular, and pretty (...) (17 years ago, 23-Aug-07, to lugnet.cad, FTX)
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| | Re: LDraw File Format Spec 1.0 DRAFT - Call for Public Comments
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(...) I replied on another message but they are taking almost an entire day to show up. My reason is simply consistency: spaces are used to separate fields, but when it comes to file names, spaces are part of the field. If we used commas to separate (...) (17 years ago, 23-Aug-07, to lugnet.cad)
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| | Re: OpenGL spec (was LDraw File Format spec)
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(...) Like I said before, the DOCS were written with column major notation but the API isn't column major. Please show me a place on the API where it requires a column major matrices, there isn't one. OpenGL matrices are simply an array of 16 (...) (17 years ago, 23-Aug-07, to lugnet.off-topic.debate)
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| | Re: LDraw File Format Spec 1.0 DRAFT - Call for Public Comments
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(...) Are you authenticating by replying to the "Message awaiting authentication" email? If so, see my thread in lugnet.admin.general (and lugnet.-off-topic.test) about the very long delay I experience when auth-ing via email. Doing it via the web (...) (17 years ago, 23-Aug-07, to lugnet.cad)
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| | Re: LDraw File Format Spec 1.0 DRAFT - Call for Public Comments
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(...) Travis, I have *had to add* support for blanks in LPub, because so many kids expect to be able to use them. Unfortunatly, kids won't read the spec, they will just do what comes naturally. I'm an old goat, so I'm personally not a fan of blanks (...) (17 years ago, 28-Aug-07, to lugnet.cad, FTX)
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