LuxCoreRender Forums

I wonder that meaning of this code.
Pras = Point(filmX, filmHeight - filmY - 1.f, 0.f);
https://github.com/LuxCoreRender/LuxCor ... ve.cpp#L86

Check the scene intersect function: https://github.com/LuxCoreRender/LuxCor ... e.cpp#L585 As you see the ray is continued to trace if the "!transp.Black()". Now check material "bsdf->GetPassThroughTransparency(backTracing)": https://github.com/LuxCoreRender/LuxCor ... al.cpp#L8...

First of all, thank you very much for your patience in answering my questions. Sorry for misunderstanding the reason Zeealpal linked. But, I still have a few doubts(I'm a rookie in this field :oops: ): 1. I still think that the geometric channels' outputs are unrelated to the material properties(If ...

Sorry, I reply to late because of time difference. I follow your advice and try to isolate/simplify the problem, finally, I find that the glossy translucent material node would impact results. cube1.PNG "cube with glossy translucent material node" Add a cube object and use glossy transluce...

Oh, I got that these big white and bright spots were probably caused by LuxCore multithreading asynchronous rendering or I save these pictures at the wrong time point, what did you mean. Use LuxCoreUI V2.3. What's more, I also use BlenderLuxCore with 2spp rendering the same scene, and found that th...

Thx.
But I think that Geometric channels outputs are obtain and saved in sampleResult when camera rays are intersected with object at the first bounce. In my perception these channels' outputs are independent of material.

The pictures are renderred by LuxCoreUI.

albedo.png position.png

As the picture showing, there are some larger white spots and lots of gray spots in POSITION Channel picture. And there are some black or gray spots in ALBEDO Channel.
What is the reason of this phenomenon。