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robcat2075

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Posts posted by robcat2075

    C++ 2023 Week 9

    in C++ Learners

    Posted

    Lesson 18 While Loops

    Finally, we can make a program repeat steps!

    Project idea:

    John Purcell suggests a program that uses a while loop to do something a number of times. But that's lame, that's what For loops are for.

    How about... implement the "Price Is Right" guessing game, where the user enters a guess at a secret number, then the computer answers "High" or "Low" or "Correct". Repeat that while the user has not yet guessed the secret number.

     

    Lesson 19 Do While Loops

    Do While is ideal for situation where some condition isn't tested or step isn't done until you are in the loop and that step or test needs to be repeated until it meets some condition.

    How about a password checker? Just to be clever, make it ask for and check two passwords and require they both be correct.

    C++ 2023 Week 8

    in C++ Learners

    Posted

    Lesson 16 Comparing Floats

    Turns out... floating point numbers are never quite what they seem.

    Program idea: write a program to test if a float variable set to 1.1 will be evaluated as equal to, greater than or less than 1.1

    When that is known, add tests to the program to see how little needs to be added (or subtracted) to the explicit value to make the evaluation with the variable come out differently from before.

    Program idea:

    A bit of code like this will show that a floating point variable set to 1.1 will evaluate as greater than a literal 1.1 

    float myVariable;
myVariable = 1.1;

if (myVariable > 1.1) {
cout>> "myVariable is greater than 1.1"<< endl;
}

    Write a program to test how little the literal 1.1 needs to be increased by to change the above outcome.

    Lesson 17 C++ Conditions

    Conditions allow you combine multiple small decisions into one big decision.

    Program idea: Think of a job that has several qualifying factors. For example, an astronaut has to be in certain height and weight ranges

    Write a program that prompts the user to enter their values for the factors and then tells them if they get the job.

    If they don't qualify, tell them which category(s) they missed on.

    Extra credit if your program has a use for both && and ||

     

    @Roger @Shelton @Rodney

     

     

    decaling in water

    in Off Topic

    Posted

    Some years ago I recall a siggraph presentation video that demonstrated a technique for decaling real obects with an image that was floated on water.

    Someone is doing that for temporary tattoos...

     

    EDIT: I guess the "immersion printing" has been around for a while for simple shapes. Here is the Siggraph presentation I recall about generating decals for complex shapes...

     

    Addon for Blender to link images with materials for AM

    in 3rd Party Programs, Utilities and Products

    Posted

    16 minutes ago, Malo said:

    This addon allows you to select the folder of images and choose the type of materials you want to link to the images. In just a few seconds, you will have all 30 materials created and ready to be used in AM. Is it clearer now?

    That sounds like something a plugin for A:M could do... if I knew enough AM plugin programming to do it.

    For now... I guess it's Blender and Python!

    The Twisted Knickers Revue

    in Work In Progress / Sweatbox

    Posted

    You don't want Animate Mode OFF. And you don't want that Red Border. It's a warning that Animate Mode is OFF.

     

    Quote

    I turned on the animation mode in the shortcut to each model manually (one by one).

    I never touched that. Leave that "not set"

     

    Quote

    I rendered both with the red A and the black A.

    Animate Mode isn't about rendering. It's about keyframes you make before you render.

     

    Try my sample project and do what i do in the video starting at 21:04

    MyronTitle001b.prj

    Red Figure Thom

    in Work In Progress / Sweatbox

    Posted

    Very old Greek pottery in the late 7th and 6th centuries B.C.E practiced something called "black figure", where they painted imagery with black glaze or "slip" on the red clay.

    Photograph of a black-figure lekythos showing two human figures reclining beneath a productive grape arbor, from the side against a neutral gray background.

     

    A couple centuries later they reversed that to do "red figure" where they used the black to cover the negative space around the image they were making.

    Terracotta psykter (vase for cooling wine), Attributed to Oltos, Terracotta, Greek, Attic

     

    After seeing examples of this work at a museum I wanted to try to recreate some of that look, including the numerous fractures they tended to have after being buried in a dump for 2000+ years.

    Thom is a cylinder wrapped decal. The break lines are a combiner material.

    ThomRedFigure_000.jpg


     

    C++ 2023 Week 6

    in C++ Learners

    Posted

    Lesson 12 Bools and Chars

    This completes our set of classic Data types everyone should know.

    Idea for project:

    Declare a couple of Boolean variables. Set one equal to true and the other equal to false. Print out the values of both. Label your output.

    Declare a char variable and set it equal to a value. Print out both its character value and its integer value. Label your output.

    Declare a second char variable and prompt the user to give a value for it. Print out both versions of the char value. Label your output.

     

    Lesson 13 If

    "If" is our first "decision structure." We can start getting the computer to make choices.

    Idea for project:

    Prompt the user to guess something that is one of a set (e.g. month of the year) and use only "if" statements to tell him if he is correct, close to, or wrong with his guess.

     

    • Like 1

    Manga For America

    in Off Topic

    Posted

    NYT has an article with visual examples of how American publishers have adjusted the visuals of Japanese Manga comics for American expectations... or not.

    Quote

    Open a Japanese comic in a bookstore — say, the latest edition of “Dragon Ball Super” — and you’re likely to find a note saying, “Stop! You’re reading the wrong way.”

    How Manga Was Translated for America

    (caution: long load time for graphics)

     

    @Rodney

     

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