What is texturing in C++ graphics programming?

What is texturing in C++ graphics programming?

Texturing in C++ graphics programming refers to the process of applying images (textures) to 3D models to give them detail and realism.

How do I load a texture in OpenGL using C++?

To load a texture in OpenGL, you typically use libraries like SOIL or stb_image to read the image file, then generate a texture ID and bind it using OpenGL functions.

Can you show me a code example for loading a texture?

Sure! Here's a simple example:

GLuint texture;
glGenTextures(1, &texture);
glBindTexture(GL_TEXTURE_2D, texture);

// Load image using SOIL or stb_image
int width, height;
unsigned char* image = SOIL_load_image("path/to/image.png", &width, &height, 0, SOIL_LOAD_RGB);

// Set texture parameters
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);

// Generate texture
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, image);
SOIL_free_image_data(image);

What are the common issues when texturing in C++?

Common issues include texture not appearing, incorrect texture coordinates, and problems with image loading. Make sure to check your paths and OpenGL settings.