Need a Formula Betwin 2D to 3D
Monkey Forums/Monkey Programming/Need a Formula Betwin 2D to 3D
| ||
| Hi, Lets say I have a 2D scrolling game that uses 3D graphics. and I want a 2D image to follow the movement of a 3D mesh. My camera position is -300 and my camera zoom is 40 In this case I need to multiply the Image Coords with the number 104 (more or less). what I want is a formula where I insert the camera position and the camera zoom and the formula returns the relation number. anyone knows how to do it? |
| ||
| gluProject() The idea is to transform the 3D point using the model matrix and the projection matrix, then normalize (so it's between 0 and 1), and convert the x,y into something usable based on your camera viewport size. |
   |