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In this file I will document the process. Starting with library/dependency installations and will keep a documentation of the progress. Most recent updates will be at the top.

Mouse Controls

making it mooove with the mouse. Although I took out the repositioning of the mouse curser from the tutorial.

mouse_control

Texturing a Cube

A textured cube:

textured_cube

Messing around with the buffers procuded this :neckbeard::

random positions

Rendering a Cube

Rendering a cube with random vertex colors, which are updated in each frame.

flashing cube

Model View Projection Matrix for Shader

Creating the Model view projection matrix to translate the camera/object within the space. Currently the Triangle is located at the origin but the camer is translate away from the origin and looking at the world coordinate system origin.

yellow triangle from camera position: (4,3,3)

yellow triangle from camera position: (0,3,3)

Currently compiling as : g++ window.cpp helper.cpp -o window -lglew -lglfw -framework OpenGL

GLM for matrice calculations

install:

  • installed with homebrew:

    • brew install glm

Red Triangle

Currently compiling as : g++ window.cpp 02_triangle_shader.cpp shader.cpp -o window -lglew -lglfw -framework OpenGL

producing red triangle like in the tutorial:

red triangle

I might have had certain dependencies/ libraries installed before. I will only list the libraries I had to install personally.

GLEW

What is glew? https://gamedev.stackexchange.com/questions/112182/what-is-glew-and-how-does-it-work

install:

  • installed with homebrew:

    • brew install glew

  • also had the same linker problem : symbol(s) not found for architecture x86_64

    • need to link with -lglew for gcc.

GLFW

it deals with window creation/destroying, user input/output we will use GLFW. Recommended by https://solarianprogrammer.com/2013/05/10/opengl-101-windows-osx-linux-getting-started/ and http://www.opengl-tutorial.org/beginners-tutorials/tutorial-1-opening-a-window/. Reason enough I suppose...

install:

  • used homebrew to install:

    • brew install glfw3

  • Error when using _glfwInit:

    • ld: symbol(s) not found for architecture x86_64

    • need to link the glfw with -lglfw

might need to link certain frameworks as well : https://stackoverflow.com/questions/43817344/trouble-compiling-glfw-undefined-symbols