View Issue Details
|ID||Project||Category||View Status||Date Submitted||Last Update|
|0004685||The Dark Mod||Graphics||public||25.11.2017 17:18||09.12.2017 16:10|
|Product Version||TDM 2.05|
|Target Version||TDM 2.06||Fixed in Version||TDM 2.06|
|Summary||0004685: Foglights, Particles and portal_sky|
|Description||Particles get fogged up too much when they are in front of a portal_sky texture that is also being affected by a foglight. |
I should say this isn't a particle system issue per se, but the way blend modes in material definitions interact with fog and the portal_sky texture.
|Steps To Reproduce||Place a prefab skybox in your map, place portal_sky textures in order to see it.|
Place a foglight in your map, make sure it touches your portal_sky texture. Make sure your foglight has the noFogBoundary spawnarg set to "0" so it fogs up the portal_sky.
Spawn a transparent particle/an entity with one. A good example is the arc_light streetlight.
Watch the particle be overly fogged when in front of the portal_sky and properly fogged when in front of normal textures.
|Additional Information||I have tried all sorting modes in my custom particles' material definitions (sort nearest, etc) and different blending modes with no satisfactory workaround to this issue. |
There is a similar issue with blending modes being fullbright or sorting wrong when foglights are present, which is probably due to modes like "blend blend" or "blend add" not interacting with other lights. This can be observed in VanishedOne's ornate glass materials introduced in 2.05.
|Tags||No tags attached.|
particle sorting.png (1,231,561 bytes)
|Can you attach a test map please. I am clueless with dark radiant.|
foglights.map (16,739 bytes)
I've attached a test map, you can move sideways to see how the particles (both the arc_light particle and the func_emitter one) look against the wall textures and the sky_portal.
Note that this is a 2.05 issue and while it'd be great to have it sorted in the next version it could be slated for 2.07.
The problem here appears to be the engine limitation.
I guess we would need to do fog before transparent surfaces and somehow downmodulate those separately.
|I think that all ambient-only translucent materials are generally incompatible with TDM fog. It's not just the skybox, but any object far enough to cause enough fogging color component.|
Added new material flag: sort afterfog
Applied it to material textures/particles/dustcloud and that seems to fixed the fog overdraw.
This only works well for ambient-only materials, that weren't fogged before, like the waterfall in the test map.
Although this has not been completely resolved I am changing the status to resolved pending testing feedback.
At revision: 7326 (code), 15103 (assets)
The afterfog keyword looks great but I have discovered one major issue. Whenever there is a material with "sort afterfog" present in the player's view, all materials with a heatHaze fragment program disappear completely.
Just to be sure I also tested this with heatHazewithDepth, due to the mass replace, and the result was the same - the material disappears from view.
|Test map please?|
foglights_warp.map (18,641 bytes)
|Test map added. Look around or toggle r_skipParticles to see the problem. The waterfall particle has a large radius so I have put it further back so that the player can turn around and get it out of their view cone in order for the warp materials to pop back up.|
|At revision: 7338|
|25.11.2017 17:18||Spooks||New Issue|
|25.11.2017 17:18||Spooks||File Added: particle sorting.png|
|26.11.2017 07:59||duzenko||Note Added: 0009705|
|26.11.2017 10:26||Spooks||File Added: foglights.map|
|26.11.2017 10:29||Spooks||Note Added: 0009706|
|29.11.2017 09:04||duzenko||Assigned To||=> duzenko|
|29.11.2017 09:04||duzenko||Status||new => assigned|
|02.12.2017 08:57||duzenko||Note Added: 0009725|
|02.12.2017 12:09||duzenko||Note Added: 0009726|
|02.12.2017 12:35||duzenko||Note Added: 0009727|
|02.12.2017 12:39||duzenko||Note Added: 0009728|
|02.12.2017 12:39||duzenko||Status||assigned => resolved|
|02.12.2017 12:39||duzenko||Fixed in Version||=> TDM 2.06|
|02.12.2017 12:39||duzenko||Resolution||open => fixed|
|06.12.2017 14:00||Spooks||Note Added: 0009736|
|06.12.2017 14:00||Spooks||Status||resolved => feedback|
|06.12.2017 14:00||Spooks||Resolution||fixed => reopened|
|06.12.2017 20:45||duzenko||Note Added: 0009740|
|07.12.2017 15:45||Spooks||File Added: foglights_warp.map|
|07.12.2017 15:48||Spooks||Note Added: 0009746|
|07.12.2017 15:48||Spooks||Status||feedback => assigned|
|09.12.2017 08:55||duzenko||Note Added: 0009749|
|09.12.2017 08:55||duzenko||Status||assigned => resolved|
|09.12.2017 08:55||duzenko||Resolution||reopened => fixed|
|09.12.2017 16:10||grayman||Target Version||=> TDM 2.06|