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What do gamers actually think about Ray-Tracing?

@mrk right now:

dodge.gif
 
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Why do you think I'd prefer the left one? The right one has the more natural illumination without the awkward blue tint on surfaces that should not have it - IN this example the more accurate image is number 2 so I'd say that was the RT/PT one and left is raster because raster doesn't factor in dynamic emissive light sources to then build bounced lighting on surfaces (and shadows).
 
TNA said:
Ignore that though. What about the rest of the image. What makes it Raster and what makes the one on the right PT? :p
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Shall we do a deep dive? I think a deep dive is in order.....

Litter on 1 has unusual illumination in areas of the box that should be in dark shadow because no light source is casting light on those sides:
9xzPYZi.png


The emissive ceiling light is amber toned, on 1 the light source is not casting GI on the surrounding concrete structure of the ceiling, it is on 2:
AS55UxY.png


The underside of this ceiling is in an area that has no bounced surface lighting cast off the ground or anywhere else so should be fully shadowed, it is not in 1, so 1 would be the raster as raster isn't clever enough to account for this:
EOY05kP.png


Scaffolding reflections are missing on 1 vs 2:
pBDn74X.png


The edging of the concrete structure is missing a shadow run where less light hits that face of the beam on 1:
kwAa7On.png


Pavement ledge, the 90 degree facing part of the pavement faces light sources and should be illuminated this time round, but the raster in 1 is painting this surface with shadow when there should not be a shadow. 2 is correctly lit in this instance:
WYYnvP6.png


The concrete wall has angled sections facing the sky so the flatter 90 degree bits of the upper wall should have a different shade vs the lower angled part that faces the sky. On 1 the entire wall is the same shade, 1 is the raster:
zC9tyja.png


Once you've played enough games with ray tracing all of the above are immediately obvious and noticed even in motion. I guess we've become trained subconsciously to notice them too as something doesn't feel "right" with raster in every game now that has environments like this.
 
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Probably not much, that screenshot is of a scene that isn't that complex. It's in space for starters with only one single light source, there are no props around the camera for bounce GI to take effect on anything and everything that isn't star facing will be cast in shadow. This scene is extremely easy to render convincingly with just raster if we only look at the scene as presented in the image!

If anything, the little lights on the ship would cast more accurate bounce illumination on the ship's hull, but they would be minor details given the grand scale of the scene's viewport there.
 
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mrk said:
Probably not much, that screenshot is of a scene that isn't that complex. It's in space for starters with only one single light source, there are no props around the camera for bounce GI to take effect on anything and everything that isn't star facing will be cast in shadow. This scene is extremely easy to render convincingly with just raster if we only look at the scene as presented in the image!
Click to expand...

Ok, makes sense, you would think the the bottom of the ship would catch some light from the planet below tho?
 
I don't know what the overall colour of the ship is since it's so much in shadow on the non sun facing side, if it's a grey then maybe yeah but the screenshot doesn't show the underside of the ship so we don't know if the raster has painted some form of light under the ship as means of reflection from the planet being lit by the sun there.
 
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