PLEASE READ
Please try to read previous posts to avoid redundancy in the off chance CDPR staff actually read any posts from this thread. Be specific in what the issue is and test it against Raster before posting as it may be a general graphics bug. This thread is for noting RT and Overdrive specific bugs, not general game or raster problems unless they impact RT/Overdrive rendering. Likewise, it should be understood that issues such as 'fireflies', noise, blur, accumulation lag(light that remains present after the source has disappeared or the camera has moved) are not bugs but artifacts from how real time ray tracing operates - only time and engineering will solve these issues.
I'm going to start off with issues that have lingered from day one. Some of these I think I have an idea of why they are the way they are while others I'm not sure, and the at the end of the day I'm just making an educated guess from my experience with rendering engines for post-production and my own reading in an attempt to understand how this all work.
First issue is related to "Distant Shadows".
Usually in a game Distant Shadow fields are used to fake/darken cascade shadows that aren't rendering at a certain distance. In 2077 it would seem this system is doing multiple things like blocking fog, removing rasterized global light, removing sun rays, among other things from certain room/vehicle interiors and areas of the map.
It's a contributor to some raster artifacts, but it causes a couple of rather intrusive artifacts that can effectively be called 'bugs' when enabling Ray Tracing. The most obvious of these is glowing translucent objects.
The first two are with RT Overdrive, the third image is Rasterized Ultra. Look at just how bad a critical scene in the primary path of the game can become with 2077's new hallmark feature. It's been this way since launch. The sunglasses will fade in and out of this state, sometimes changing abruptly as the vehicle enters these invisible boxes placed all around the world. Note just how bright the cigar smoke is as well. If direct light were flooding the vehicle; One would expect the smoke to respond this way and I thought it was intended until I investigated further. Disabling "distantshadows" with ini configs will remove this issue entirely, but that's not tenable for RT or raster as it introduces the artifacts it's intended to subdue - it considerably degrades the very purpose of using RT at it's highest settings as well.
Again, note the change as this vehicle enters one of these boxes. I'm not sure as I haven't tested recently, but when trying to remove the raster artifacts from psycho RT in the past - I disabled the game raster GI with a ini config, around the map I could see several of such boxes. In many vehicles you could even notice when the player character or side character enters that there is an abrupt cutoff in lighting, a really good place to test this(with RT Psycho) is the scene when Panam opens the AV to save Scorpion - just as she points her gun into the vehicle you will see the lighting on her arm changes as she enters the occlusion box. Overdrive alleviates the visibility of the occlusion boxes, but we're still left with glowing translucent/transparent object as their shaders are still rendered in raster - causing this obnoxious glow.
Of course, as mentioned earlier, this happens with transparent textures/objects as well and not just translucent - which is a bit more worrying as I don't know what RT offers to solve this issue. Either CDPR has to address this by reworking an old raster system that was seemingly hooked together to save resources, or they at least introduce RT translucency lest their new 'wow' factor be marred with solvable problems, especially at critical path moments.
Another issues has been 'occlusion'.
Certain NPCs, objects, etc. around the world exhibit occlusion for seemingly invisible objects. I had hopes that Path Tracing would solve this, thinking it was an error of how RT works and that Path Tracing would solve it, as now isn't and RTAO layer but only light and shadow. I was wrong. It could be an asset that is not loading in properly in the LOD range, or it could be something intentionally hidden at one moment and later forgotten. There are lots of object around the world that do this, some have understandable reasons, but others it seemingly is an issue with the mesh/shader itself.
From day one this specific NPC has been doing this.
Another NPC, albeit less noticeably. Note that she's wearing a translucent garment, but the effect is present. It's not covering her entire upper body, so I can only assuming there's another piece of clothing, perhaps for an npc variant, that's being registered in the gbuffer and causing this.
Six Street gangers have notable issues. Several meshes from that group exhibit these kind of artifacts.
These soft surface tents and banners have had this problem since day one as well. Oddly, it's not present on all of them even though they appear to be the same model, notice below that the same setup but with a different texture in the same environment does not present such behavior. It could be the second kiosk tent isn't using a simple texture variant, but an entirely different material. Either way, it's clearly not intended and it looks plain bad.
This is issue crops up with many more assets, which I will cover in another post in the thread, but how many images can be attached per posts is limited.
Newer bugs introduced solely with RT Overdrive are the material specific artifacts creating this kind of illuminated mold like pattern.
The best I can surmise is that the burned state texture is being rendered for the vehicles... I'm not sure why it's happening with characters when, unlike many other games, NPCs show no evidence of having been torched at all after dying. I have seen some 'fireflies' in this pattern glint on metals when using photo mode, and it's present on several other texture throughout the world, but here it's vibrant. It's also to specific assets, and not a general issue with the shaders I would guess.
Path Tracing on the Left, RT Psycho on the right.
@krashlog Anything you find worthy of note so far?
Please try to read previous posts to avoid redundancy in the off chance CDPR staff actually read any posts from this thread. Be specific in what the issue is and test it against Raster before posting as it may be a general graphics bug. This thread is for noting RT and Overdrive specific bugs, not general game or raster problems unless they impact RT/Overdrive rendering. Likewise, it should be understood that issues such as 'fireflies', noise, blur, accumulation lag(light that remains present after the source has disappeared or the camera has moved) are not bugs but artifacts from how real time ray tracing operates - only time and engineering will solve these issues.
I'm going to start off with issues that have lingered from day one. Some of these I think I have an idea of why they are the way they are while others I'm not sure, and the at the end of the day I'm just making an educated guess from my experience with rendering engines for post-production and my own reading in an attempt to understand how this all work.
First issue is related to "Distant Shadows".
Usually in a game Distant Shadow fields are used to fake/darken cascade shadows that aren't rendering at a certain distance. In 2077 it would seem this system is doing multiple things like blocking fog, removing rasterized global light, removing sun rays, among other things from certain room/vehicle interiors and areas of the map.
It's a contributor to some raster artifacts, but it causes a couple of rather intrusive artifacts that can effectively be called 'bugs' when enabling Ray Tracing. The most obvious of these is glowing translucent objects.
The first two are with RT Overdrive, the third image is Rasterized Ultra. Look at just how bad a critical scene in the primary path of the game can become with 2077's new hallmark feature. It's been this way since launch. The sunglasses will fade in and out of this state, sometimes changing abruptly as the vehicle enters these invisible boxes placed all around the world. Note just how bright the cigar smoke is as well. If direct light were flooding the vehicle; One would expect the smoke to respond this way and I thought it was intended until I investigated further. Disabling "distantshadows" with ini configs will remove this issue entirely, but that's not tenable for RT or raster as it introduces the artifacts it's intended to subdue - it considerably degrades the very purpose of using RT at it's highest settings as well.
Again, note the change as this vehicle enters one of these boxes. I'm not sure as I haven't tested recently, but when trying to remove the raster artifacts from psycho RT in the past - I disabled the game raster GI with a ini config, around the map I could see several of such boxes. In many vehicles you could even notice when the player character or side character enters that there is an abrupt cutoff in lighting, a really good place to test this(with RT Psycho) is the scene when Panam opens the AV to save Scorpion - just as she points her gun into the vehicle you will see the lighting on her arm changes as she enters the occlusion box. Overdrive alleviates the visibility of the occlusion boxes, but we're still left with glowing translucent/transparent object as their shaders are still rendered in raster - causing this obnoxious glow.
Of course, as mentioned earlier, this happens with transparent textures/objects as well and not just translucent - which is a bit more worrying as I don't know what RT offers to solve this issue. Either CDPR has to address this by reworking an old raster system that was seemingly hooked together to save resources, or they at least introduce RT translucency lest their new 'wow' factor be marred with solvable problems, especially at critical path moments.
Post automatically merged:
Another issues has been 'occlusion'.
Certain NPCs, objects, etc. around the world exhibit occlusion for seemingly invisible objects. I had hopes that Path Tracing would solve this, thinking it was an error of how RT works and that Path Tracing would solve it, as now isn't and RTAO layer but only light and shadow. I was wrong. It could be an asset that is not loading in properly in the LOD range, or it could be something intentionally hidden at one moment and later forgotten. There are lots of object around the world that do this, some have understandable reasons, but others it seemingly is an issue with the mesh/shader itself.
From day one this specific NPC has been doing this.
Another NPC, albeit less noticeably. Note that she's wearing a translucent garment, but the effect is present. It's not covering her entire upper body, so I can only assuming there's another piece of clothing, perhaps for an npc variant, that's being registered in the gbuffer and causing this.
Six Street gangers have notable issues. Several meshes from that group exhibit these kind of artifacts.
These soft surface tents and banners have had this problem since day one as well. Oddly, it's not present on all of them even though they appear to be the same model, notice below that the same setup but with a different texture in the same environment does not present such behavior. It could be the second kiosk tent isn't using a simple texture variant, but an entirely different material. Either way, it's clearly not intended and it looks plain bad.
This is issue crops up with many more assets, which I will cover in another post in the thread, but how many images can be attached per posts is limited.
Post automatically merged:
Newer bugs introduced solely with RT Overdrive are the material specific artifacts creating this kind of illuminated mold like pattern.
The best I can surmise is that the burned state texture is being rendered for the vehicles... I'm not sure why it's happening with characters when, unlike many other games, NPCs show no evidence of having been torched at all after dying. I have seen some 'fireflies' in this pattern glint on metals when using photo mode, and it's present on several other texture throughout the world, but here it's vibrant. It's also to specific assets, and not a general issue with the shaders I would guess.
Path Tracing on the Left, RT Psycho on the right.
Post automatically merged:
@krashlog Anything you find worthy of note so far?
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