hi,if you are working on a classic raycasting engine like wolfenstein3d or similar games used where you only have vertical walls there is a short tutorial on http://www.permadi.com/tutorial/raycast/ or one at http://student.kuleuven.be/~m0216922/CG/raycasting.html they are both not in python or pygame but they explain how the textures are calculated. in the end you simply have to draw a scaled one pixel column of a texture on every column of the screen. for this you can maybe use pygame.transform.chop and pygame.transform.scale but it might be to slow. if you want to do it yourself you can use a modified bresenham algorithmus. http://en.wikipedia.org/wiki/Bresenham's_line_algorithm because you need only the y coordinates for vertical lines you can use the x coordinate for the position in the texture you draw.
chrigi Julia schrieb:
Hi everyone!I am currently working on a raycasting engine using pygame for graphics. Theengine works great and now I'm thinking about adding support for textures.The problem is that I'm not really sure to with modules and methods to use.I need to be able to load textures, scale then to fit and then draw the scaled image. Any tips on a smart way to do this? Good tutorial url's are also appreciated :) / J