problem with orthographic camera
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Please upload a testscene that allows developers to reproduce the problem, and attach some images.
Please upload a testscene that allows developers to reproduce the problem, and attach some images.
Re: problem with orthographic camera
I get this result in Blender and 2.1 beta4 after i apply rota and scale for all the objects other than sun and camera.
Re: problem with orthographic camera
I don't understand why screenwindow should cause this.
The issue is that light intensity is missing in directly irradiated area compared to shadow area.
Here another example: Below the thick glass is dark shadow: good
There is more light below the thin glass, with the gloss from the sun: good (but actually there shouldn't be that gloss)
The other areas are darker than the area below the thin glass, and no gloss from the sun: incorrect
Here again how it should look like (rendered with distant perspective camera):
Re: problem with orthographic camera
Seems like orthographic camera scale of 10 is infinity times brighter, scale 1 is much better and perspective camera is perfect.
Switch the auto linear off first.
Switch the auto linear off first.
Re: problem with orthographic camera
Just a quick test with manual linear 0.00001
I don't think that it has to do with the tone mapper. Maybe ray sampling???
Shadow below thin glass is still much brighter than directly irradiated area.I don't think that it has to do with the tone mapper. Maybe ray sampling???
Re: problem with orthographic camera
We already had the topic of glass behaviour recently in another thread:
viewtopic.php?f=4&t=793
I also posted an example of a working lens system with a detector made of matte translucent plate and an ortho-camera there. Check out these two posts for images and the blend-file:
viewtopic.php?f=4&t=793&start=10#p8335
viewtopic.php?f=4&t=793&start=20#p8384
Not sure if it is exactly what you are going for here (didn't have time to check out your file) but since you said you need to simulate optical lenses I though it might be helpful...
viewtopic.php?f=4&t=793
I also posted an example of a working lens system with a detector made of matte translucent plate and an ortho-camera there. Check out these two posts for images and the blend-file:
viewtopic.php?f=4&t=793&start=10#p8335
viewtopic.php?f=4&t=793&start=20#p8384
Not sure if it is exactly what you are going for here (didn't have time to check out your file) but since you said you need to simulate optical lenses I though it might be helpful...
Re: problem with orthographic camera
Thanks, I'll have to check later.
Just for curiosity, why do you measure from a translucent plate. This is my real world setup. But for Blender/LuxCoreRender I can just put the orthographic camera in front of an opaque plate, right? All other objects are camera invisible, and the camera anyway.
Just for curiosity, why do you measure from a translucent plate. This is my real world setup. But for Blender/LuxCoreRender I can just put the orthographic camera in front of an opaque plate, right? All other objects are camera invisible, and the camera anyway.
Re: problem with orthographic camera
The "matte translucent plate + ortho camera behin the plate" setup is one workaround to mimic a CCD/CMOS-detector instead of a camera.
I found that the matte translucent plate needs to be thin, but still have a finite thickness. In my case, if it was thinner than 1e-5, there would be strange behaviour. If it is thick, it blurs the image.
It should be possible as well to have a "matte plate + ortho camera in front of it".
My idea - which I didn't play around with further - was the additional settings matte translucent gives me, potentially combining it with glass so that your light path goes through the sequence "air - glass surface - glass body - matte translucent surface - air - camera". This could be a way to simulate specular reflections off the detector surface for simulating ghosts.
I found that the matte translucent plate needs to be thin, but still have a finite thickness. In my case, if it was thinner than 1e-5, there would be strange behaviour. If it is thick, it blurs the image.
It should be possible as well to have a "matte plate + ortho camera in front of it".
My idea - which I didn't play around with further - was the additional settings matte translucent gives me, potentially combining it with glass so that your light path goes through the sequence "air - glass surface - glass body - matte translucent surface - air - camera". This could be a way to simulate specular reflections off the detector surface for simulating ghosts.