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Is the slick2d library compatible with LWJGL 3?
The first step is to load the image that will be used as a texture. For this task, in previous versions of LWJGL, the Slick2D library was commonly used. At the moment of this writing it seems that this library is not compatible with LWJGL 3 so we will need to follow a more verbose approach.
What are the parameters for decode in LWJGL 3?
The decode method requires three parameters: buffer: The ByteBuffer that will hold the decoded image (since each pixel uses four bytes its size will be 4 width height). stride: Specifies the distance in bytes from the start of a line to the start of the next line.
How does OpenGL work with a texture image?
What you do is assign points in the image texture to the vertices in your model. With that information OpenGL is able to calculate the colour to apply to the other pixels based on the texture image. The texture image does not have to have the same size as the model. It can be larger or smaller.
How are textures used in a 3D model?
A texture is an image which is used to draw the colour of the pixels of a certain model. You can think of a texture as a skin that is wrapped around your 3D model. What you do is assign points in the image texture to the vertices in your model.
How to create frame buffer in OpenGL-LWJGL 3?
My problem is, in the init, I first init the GLFW window, make it visible calling glfwShowWindow (window); and then create the frame buffer. This means I have an empty window showing up where nothing is rendered. But when I comment this line to keep the window hidden, the frame buffer status after creation is GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT.
How is a PNG image decoded in LWJGL 3?
The PNG image will be decoded in RGBA format (RGB for Red, Green, Blue and A for Alpha or transparency) which uses four bytes per pixel. The decode method requires three parameters: buffer: The ByteBuffer that will hold the decoded image (since each pixel uses four bytes its size will be 4 width height).
How does OpenGL extrapolate the colour of a texture?
OpenGL will extrapolate the colour if the pixel to be processed cannot be mapped to a specific point in the texture. You can control how this process is done when a specific texture is created. So basically what we must do, in order to apply a texture to a model, is assigning texture coordinates to each of our vertices.
How do you apply texture to a model?
So basically what we must do, in order to apply a texture to a model, is assigning texture coordinates to each of our vertices. The texture coordinate system is a bit different from the coordinate system of our model. First of all, we have a 2D texture so our coordinates will only have two components, x and y.