Try using gluLookAt glClearColor(0.0, 0.0, 0.0, 1.0); glClear(GL_COLOR_BUFFER_BIT); glMatrixMode(GL_PROJECTION); glLoadIdentity(); /* use this length so that camera is 1 unit away from origin */ double dist = sqrt(1 / 3.0); gluLookAt(dist, dist, dist, /* position of camera */ 0.0, 0.0, 0.0, /* where camera is pointing at */ 0.0, 1.0, 0.0); /* which direction is … Read more
Axonometric rendering The best way to handle axonometric (commonly called isometric) rendering is via a projection matrix. A projection object as follows can describe all you need to do any form of axonometric projection The object has 3 transforms for the x,y and z axis with each describing the scale and direction in the 2D … Read more
Not really an answer (as the code will be rewritten anyway) so few hints for the new code instead (some of them are already mentioned in the comments). Tileset In the final isometric engine use sprites. They are faster and support pixel art. For my purposes I use compilation of these two free to use … Read more
Update: Corrected map rendering algorithm, added more illustrations, changed formating. Perhaps the advantage for the “zig-zag” technique for mapping the tiles to the screen can be said that the tile’s x and y coordinates are on the vertical and horizontal axes. “Drawing in a diamond” approach: By drawing an isometric map using “drawing in a … Read more
This answer is based on: 2D grid image values to 2D array So here it goes: conversion between grid and screen As I mentioned in comment you should make functions that convert between screen and cell grid positions. something like (in C++): //————————————————————————— // tile sizes const int cxs=100; const int cys= 50; const int … Read more