Please Help Pathtracer Twinmotion. Pourquoi mes images intérieures deviennent jaune avec le rendu path tracer ? sur quoi peut-on agir pour rectifier la température d image ? ICI 2 images without Pathtracer et With pathtracer. Merci pour vos échanges
with pathtracerand down, without pathtracer.
Hello ,
The Path Tracer uses additional lighting information to produce renders, which creates more accurate lighting than the standard rasterized image, which can explain differences in color temperature. If you reduce the White Balance value in the Lighting section of the Dock, you should be able to reduce the warmth of the Path Traced image.
Best,
Raghib
Helloo @Raghib.K
Thank you for your answer, I m trying again tonight, with a white balance 5000K,, thenwith a skydome high values too
whithout pathtracer 5000K wb
with PAthtracer 5000 K wb
But It s still yellow i think
There is a so big difference between the pictures with and without Pathtracer..
do you think it s normal ?
(Then,I loose the neon lights into the scene with pathtracer, it s a pitty. (or I have to replace them all with an objet in translucent emissive material ..)
Thank you
Best ,
Cidji
HI
This kind of change usually in color temperature is normal.
What's happening without path tracer (rasterized rendering) is a lot of the lighting and shadowing of the image is faked, particularly when it comes to reflecting light from the sky. The rasterized renderer is not very good with handling lighting coming from the sky, including with skydomes, so it approximates this by creating ambient lighting and applying it to all objects without accounting for shadows occlusion, so it is even applied indoors, which is why you have a bluish tint in your image without Path Tracer. This bluish tint is actually inaccurate.
With Path Tracer, this kind of ambient lighting isn't needed, and Path Tracer can get much more accurate lighting from the sky, so it is using the full lighting information from all of your placed lights, and the Skydome to light your image accurately. Most of the warm lighting you are seeing is coming from the sun and sky shining through the windows, properly accounting for shadows and occlusions. This is actually a more accurate image of what the scene should look like.
In addition to reducing white balance, adjusting the sun exposure and intensity, increasing the ambient lighting value, and adjusting the sky lighting exposure and intensity can help adjust the color temperature of the image to reduce overall warmth, although these won't have as much of a drastic effect as the White Balance value.
I hope this helps.
Best,
Raghib
