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Remove this formula comment. #NOTE

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Zed A. Shaw 2025-02-10 11:34:35 -05:00
parent 51972b0c35
commit 2de4b43914
1 changed files with 0 additions and 5 deletions
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5
raycaster.cpp
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@ -78,11 +78,6 @@ void Raycaster::sprite_casting(sf::RenderTarget &target) {
double sprite_x = double(sprite_pos.location.x) - $pos_x + 0.5;
double sprite_y = double(sprite_pos.location.y) - $pos_y + 0.5;
//transform sprite with the inverse camera matrix
// [ $plane_x $dir_x ] -1 [ $dir_y -$dir_x ]
// [ ] = 1/($plane_x*$dir_y-$dir_x*$plane_y) * [ ]
// [ $plane_y $dir_y ] [ -$plane_y $plane_x ]
double inv_det = 1.0 / ($plane_x * $dir_y - $dir_x * $plane_y); // required for correct matrix multiplication
double transform_x = inv_det * ($dir_y * sprite_x - $dir_x * sprite_y);