@bkartchitect01: PLEASE READ!!!! THIS IS A ONE POINT PERSPECTIVE. THE VANISHING POINT IS THE RED PIN IN THE CENTER OF THE PAPER. THAT IS THE POINT WHERE ALL THE LINES GOING IN THE SAME DIRECTION AS THE HALLWAY CONVERGE... 1. DRAW VERTICALS FROM THE MAIN LINES OF THE WINDOW TO THE FLOOR 2. DECIDE THE ANGLE IN WHICH THE LIGHT ENTERS THE HALLWAY AND DRAW LINES WITH THAT ANGLE ALL THE WAY TO THE OPPOSITE WALL. 3. WHEN THE LINES TOUCH THE OPPOSITE WALL, THEY CLIMB STRAIGHT UPWARDS. 4. DECIDE THE INCLINATION OF THE SUN AND DRAW LINES FROM THE CORNERS AND HORIZONTAL DIVISIONS OF THE WINDOWS, UNTIL THEY MEET WITH THE FIRST LINES THAT YOU TRACED. 5. FROM THE POINTS WHERE THEY JOIN DRAW LINES GOING TO THE VANISHING POINT BECAUSE THE HEIGHT OF ALL THE WINDOWS IS THE SAME. 6. USING ALL THOSE LINES AS REFERENCE YOU CAN NOW "BUILD" THE SHAPE OF THE WINDOWS PROJECTED ON THE FLOOR AND WALLS BY THE LIGHT ENTERING THROUGH THEM. 7. COLOR EVERYTHING LEAVING THE LIT AREAS WITH A LIGHTER SHADE OF COLOR DEPENDING ON ITS MATERIAL. Wanna learn more??? check out my upcoming book: "FOOLPROOF PERSPECTIVE DRAWING" (pre-order link in bio)...!