Orthographic Plan view. Render floor like a ceiling is present.

I’m creating some rendered floor plans with the Orthographic view in Enscape. I want to render them like the sun is coming through the windows, instead of from over the walls through the “hidden” ceiling, creating shadows that aren’t really there. If I turn the sun off; however, the colors of my materials aren’t true and seem like they are all in shadow. Is there a way I can render with the Sun on, but turn the shadows completely off, so my material render in their true colors?

For a sun study in an AutoCAD model a few years ago, I constructed a black box about three stories high above the floor in question, placed my camera just inside the top, turned off the intervening ceiling and roof layers, and rendered looking straight down. I didn’t get any bounce light from the ceiling in the rendering, but it was a high-roofed equestrian center and there probably wasn’t much bounce anyway. This was an orthographic view, but there’s no reason it shouldn’t work in perspective if that is what you want. Here’s a frame:

(Why do a sun study in a riding center? you ask. Turns out that the horses would shy at the streaks of light on the floor, so we had to add translucent shades to keep the direct light out.)