Isometric perspective to screen perspective

[lucas92]

Hi, I have the following transform:

const static sf::Transform worldToScreen(sqrt(3) / sqrt(6), 0, -sqrt(3) / sqrt(6), 1 / sqrt(6), 2 / sqrt(6), 1 / sqrt(6), 0, 0, 1);

I see that the transform method of sf::Transform will always return a sf::Vector2f and take a sf::Vector2f as a parameter. Any way to make it return a sf::Vector3f and passing the parameter as a sf::Vector3f?

What I'd like to do is simply convert isometric world coordinates to screen coordinates by using this equation: [x',y',z']'=[T][x,y,z]' where x',y',z' are the screen coordinates (z' is ignored), T is the transformation matrix shown above and x,y,z are the world coordinates to convert.

Is this the correct way to use sf::Transforms?

[eXpl0it3r]

sf::Transform is just a transformation matrix which is specifically made for SFML's internal usage. You can get the matrix as an float array with getMatrix, but other than that sf::Transform was not built for your usage, you can however pretty easily create your own class/version with a similar interface.

[Laurent]

sf::Transform is not an internal detail, it's part of the public API. But it represents a 2D transform, it's not designed to handle 3D (it would need an extra dimension to do so).