dslightingengine
@dslightingengine.bsky.social
DSLightingEngine is a renderer replacement for DS2/DS3.
Discord : https://discord.gg/uwaXYDmTyS
Donations: https://ko-fi.com/ragevitamins, https://www.patreon.com/c/DarksoulsLightingEngine
LinkedIn : https://www.linkedin.com/in/ganesh-mamadapur-45395064/
Discord : https://discord.gg/uwaXYDmTyS
Donations: https://ko-fi.com/ragevitamins, https://www.patreon.com/c/DarksoulsLightingEngine
LinkedIn : https://www.linkedin.com/in/ganesh-mamadapur-45395064/
This image is completely lit by bounce lighting. Includes Skinned characters
November 10, 2025 at 4:29 PM
This image is completely lit by bounce lighting. Includes Skinned characters
Skinned BVH Comparision, without and with, the ancient dragon creates lot of occlusion /reflections in scene. Note there is no proper light bleed yet have used a default grey for skinned characters right now.
November 10, 2025 at 4:24 PM
Skinned BVH Comparision, without and with, the ancient dragon creates lot of occlusion /reflections in scene. Note there is no proper light bleed yet have used a default grey for skinned characters right now.
Animated characters now in BVH. I am still working on the right importance sampling for variance reduction, the noise in the reflection is due to the reflection of the GI lighting mostly.
November 9, 2025 at 2:19 PM
Animated characters now in BVH. I am still working on the right importance sampling for variance reduction, the noise in the reflection is due to the reflection of the GI lighting mostly.
Slowly improving the Path tracer in DS2. Note direct lighting is still analytical, but 2 bounces are done for indirect while sampling the direct radiance from screenspace, if that fails it will sample the sun light right now (with shadow ray). Here is base game vs latest LE
November 7, 2025 at 5:37 PM
Slowly improving the Path tracer in DS2. Note direct lighting is still analytical, but 2 bounces are done for indirect while sampling the direct radiance from screenspace, if that fails it will sample the sun light right now (with shadow ray). Here is base game vs latest LE
Debug Specular GI View
November 5, 2025 at 3:49 PM
Debug Specular GI View
Adding the .5D(CameraDepth) to the 2D motion vectors. This reduces valid history being rejected.
November 5, 2025 at 3:49 PM
Adding the .5D(CameraDepth) to the 2D motion vectors. This reduces valid history being rejected.
Left : Current best lighting, which has sky shadow maps, SSGI/SSR.
Right : Hardware Path tracing with 2 indirect bounces, total 3, as primary bounce is not done. This is not final, but is very promising and provides context on how it changes things
Right : Hardware Path tracing with 2 indirect bounces, total 3, as primary bounce is not done. This is not final, but is very promising and provides context on how it changes things
October 31, 2025 at 2:28 PM
Left : Current best lighting, which has sky shadow maps, SSGI/SSR.
Right : Hardware Path tracing with 2 indirect bounces, total 3, as primary bounce is not done. This is not final, but is very promising and provides context on how it changes things
Right : Hardware Path tracing with 2 indirect bounces, total 3, as primary bounce is not done. This is not final, but is very promising and provides context on how it changes things
Here are some more images, Now I have something to work with, lots of BVH work pending like all builds being scheduled on async queue , putting animated characters as well in there. Last image is just some tests to check double reflections
October 31, 2025 at 1:53 PM
Here are some more images, Now I have something to work with, lots of BVH work pending like all builds being scheduled on async queue , putting animated characters as well in there. Last image is just some tests to check double reflections
WIP RTGI. Now doing 2 indirect lighting, there are still some issues, but working on them
October 31, 2025 at 1:35 PM
WIP RTGI. Now doing 2 indirect lighting, there are still some issues, but working on them
Adding on top of this. Added multiple different debug views to understand issues quickly similar to how there are debug views for raster.
October 29, 2025 at 6:17 AM
Adding on top of this. Added multiple different debug views to understand issues quickly similar to how there are debug views for raster.
Normals were already part of the BVH Geometry buffers, Albedo/Roughness/Metalness are now added and stored as part of vertex geometry accessible from hit point. This will help in Color transport especially for diffuse lighting as its a very low frequency signal.
October 28, 2025 at 4:07 PM
Normals were already part of the BVH Geometry buffers, Albedo/Roughness/Metalness are now added and stored as part of vertex geometry accessible from hit point. This will help in Color transport especially for diffuse lighting as its a very low frequency signal.
Testing out HWRT, BVH. Now all lighting is combined. The left image is with Skyshadowmap, Sunshadow, SSGI + SSR. The Right image is just SunShadow, Now Skylighting/SSGI/SSR is now all wrapped in HWRT. It just works
October 25, 2025 at 3:17 PM
Testing out HWRT, BVH. Now all lighting is combined. The left image is with Skyshadowmap, Sunshadow, SSGI + SSR. The Right image is just SunShadow, Now Skylighting/SSGI/SSR is now all wrapped in HWRT. It just works
More BVH work, Now able to seamlessly load BVH across the zones as each zone have their own BVH(BLASes) with some overlaps in-between. I am yet to move the builds to Async compute queues and is next on my list as all this is foundational work for RT.
October 25, 2025 at 9:18 AM
More BVH work, Now able to seamlessly load BVH across the zones as each zone have their own BVH(BLASes) with some overlaps in-between. I am yet to move the builds to Async compute queues and is next on my list as all this is foundational work for RT.
Progress on BVH/HWRT Implementation. Support lookup buffers to fetch the Triangle data for hit point, other attributes like vertex colors will be added as well. The Normal is important part as bounce calculations will be based on that.
October 23, 2025 at 7:21 PM
Progress on BVH/HWRT Implementation. Support lookup buffers to fetch the Triangle data for hit point, other attributes like vertex colors will be added as well. The Normal is important part as bounce calculations will be based on that.
BVH needs to have the whole scene compared for eg shadowmapping, where sometimes you can just ignore shadowcasting items like floor or are in fully shadow, but this causes issue in BVH, All but these meshes can be added quickly LE copies the geometry from game data from GPU stores them in packages.
October 22, 2025 at 8:58 PM
BVH needs to have the whole scene compared for eg shadowmapping, where sometimes you can just ignore shadowcasting items like floor or are in fully shadow, but this causes issue in BVH, All but these meshes can be added quickly LE copies the geometry from game data from GPU stores them in packages.
HW RayTracing Acceleration Structure(TLAS) Debug view
Completed building the BVH - Bottom Level and Top Level Acceleration Structures
. The debug view the is hit distance shown - similar to depth buffer
Completed building the BVH - Bottom Level and Top Level Acceleration Structures
. The debug view the is hit distance shown - similar to depth buffer
October 22, 2025 at 6:26 PM
HW RayTracing Acceleration Structure(TLAS) Debug view
Completed building the BVH - Bottom Level and Top Level Acceleration Structures
. The debug view the is hit distance shown - similar to depth buffer
Completed building the BVH - Bottom Level and Top Level Acceleration Structures
. The debug view the is hit distance shown - similar to depth buffer
Adding additional debugging for Screen space tracing, the denoiser and shading is now updated to be better than previous versions as well.
September 7, 2025 at 2:04 PM
Adding additional debugging for Screen space tracing, the denoiser and shading is now updated to be better than previous versions as well.
Updating SSGI solution in LE, both for #darksouls3 and #darksouls2, a lot of code/features are now unified across the games.
August 25, 2025 at 5:00 PM
Updating SSGI solution in LE, both for #darksouls3 and #darksouls2, a lot of code/features are now unified across the games.
Water SSR Defog fix. As SSR reflects what is on the screen, the pixel being reflected has fog which is calculated based on eye distance, thus leading to "double dip" on fog in the scene.
August 22, 2025 at 6:18 PM
Water SSR Defog fix. As SSR reflects what is on the screen, the pixel being reflected has fog which is calculated based on eye distance, thus leading to "double dip" on fog in the scene.
cathedral of the deep in #darksouls3 le. This place was originally envisioned to be moonlit similar to bloodborne
August 19, 2025 at 5:06 PM
cathedral of the deep in #darksouls3 le. This place was originally envisioned to be moonlit similar to bloodborne
Woods in motion
August 19, 2025 at 1:31 PM
Woods in motion
Away direction for sun, and accurate character lighting and shadows
August 19, 2025 at 1:19 PM
Away direction for sun, and accurate character lighting and shadows