OpenXRay
[CS] - rain texture shades specular incoming light only in a fixed direction
Describe the bug in rainy circumstances all specular highlights seem to have a fixed direction instead of confronting the camera direction according to the surface normal.
To Reproduce
- wait for rain at night
- turn on the flashlight
- look at models that you can circle around an that are wet
- circle around models, the error should become obvious
Expected behavior specular highlights should relate to the normal direction of the surface and the normal-map, not a fixed direction!
Screenshots
the flashlight is on, the floor and the cement tube light in a strange way looking roughly from west to east
https://ibb.co/T1hDBWZ
looking from east to west (take a look to the compass in the minimap) the floor lights correctly, as well as the cement tube
https://ibb.co/9cPxWPW
and here is proff: since the interior of the cement tube is not wet the specular-diffuse light works correctly, take a look at the shadows inside the tube, it proves a light is being shone upon that, but judging for the exterior (that is wet) and the floor (wet too) it seems the light comes from underneath
https://ibb.co/p1QthcG
something is amiss here
BugTrap error report none.
Desktop (please complete the following information):
- OS: [Ubuntu 21.10]
- OpenXRay build version [f77babc825694e552b825fcba510ae814c143d07]
Additional context no special operation here.
Is this really specific to Clear Sky only? OpenGL uses same shaders for both... Only if it's the engine problem...
it also happens in CS:
the same spot, wrong in one direction:
https://ibb.co/35bxgM6
correct in the other direction:
https://ibb.co/4py5d7X
Brief investigation shows that there is some mess with shadowmap projection in gloss modification pass (takes place in rain_patch_normal.ps). Can be wrong m_shadow or m_sunmask matrices calculations.
Proof pic:
(top - G-buffer gloss after modification, bottom - modified albedo)
