Broken object visibility

[lightmap]

Hello

Found rare set of parameters that lead to object disappearence at certain values of rotation

minimal scene "roto_b" to reproduce bug, all common files from "roto_b\bin" was removed to have minimum allowed upload size

with angle (?,?,376) object are visible

with angle (?,?,368) object disappears

roto_b.zip

[sebastianbah]

Hi,

It seems that it's a problem with sorting of transparent objects. You can solve this problem by using Rendering order and Polygon offset parameters in Materials -> Common. 
Please, try to set Rendering order: +1 to mesh_base_0 material to fix the issue.

[lightmap]

Hello

That tail of bigger problem

there also bug with lighting!

make changes in roto_b scene, to reproduce lighting bug:

1. node: solar_system rotation X[180] Y[0] Z[0]

2. create->light->projected, rotate LightProj_0 X[any] Y[0] Z[0] - to see inverse lighting on sphere

! and now sphere has some inversed lighting - this bug fail all artistic work with dark scene (shiny distant objects gain light too)

! and camera rotation affect lighting too

also in editor X[] Y[here] Z[] : the Y - rotation when changed by mouse wheel - jumps to negative and back at every change

[lightmap]

is there any problems with reproducing lighting bug?

or I should make a new topic?

[sebastianbah]

Hi,

Sorry for the late reply.

We've successfully reproduced the issue and add it to our internal tracker.

As a workaround, if it suitable, you can enable Multiple environment probes state in mesh_base_0 material.

Thanks!

[lightmap]

Thanks

with environment probes I had problems: on scene with 2 dynamic env probes, after some movement, application just crushed with multiple AV error messages

can't reproduce on small scene

[sebastianbah]

Hi,

I'm afraid, for the reproduction of such problems we need some additional information.

Clould you please send us a log file and some additional information about scene?

- What is an approximate number of objects in scene?
- What types of objects is used in scene?

Thanks.

[lightmap]

Hello

about 2 env probe crush:

nothing useful in .log, it just truncated after loading resource messages

scene about 15M triangles, 8000 nodes, only mesh static

2 nodes with mesh + playerdummy + environment probe in each

only after some random camera movement in scene (less 0.5min) application gives messages: in attach

no errors in editor

removing env probes from scene gives no asserts

Edited October 4, 2017 by lightmap

[silent]

I'm afraid, we would need to check the full project in debugger to find out what happens here. Could you please send it to us for testing?

Thanks! 

[lightmap]

I'm not allowed to send full project, probe reflections are not crucial