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Tagged: csm error blender shadows
- This topic has 11 replies, 3 voices, and was last updated 4 months, 2 weeks ago by
hans.
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AuthorPosts
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2024-04-23 at 3:04 am #72446
hans
CustomerHi
I am very interested in version 4.6 of Cascaded Shadow Maps (CSM) and tested it, but the results were not satisfactory. During this process, I reinstalled the software, created a new project, and tried to change various parameters but still did not solve the problem.PCF (Poisson Disk) mode:
1. Shadow casting error.
2. The texture surface is not affected by lighting.ESM mode:
1. When dragging the map, a large number of moir é patterns will appear.
2. The edges of the shadow appear jagged.-
This topic was modified 4 months, 2 weeks ago by
wpadm.
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This topic was modified 4 months, 2 weeks ago by
wpadm.
Attachments:
You must be logged in to view attached files.2024-04-23 at 12:07 pm #72466Nurgeldi Dovletov
StaffHello
It seems that theMargin
is too large and/orESM Bias
is not configured correctly.
To better understand the problem, could you please provide a minimal version of the scene where the problem persists?Attachments:
You must be logged in to view attached files.Verge3D Developer
2024-04-23 at 12:59 pm #72468kdv
Participant4096×4096 CSM shadows (PCF, 4 cascades, blur radius 2.0, scale bias 2.0)
https://v3d.net/m3s2048×2048 CSM shadows (PCF, 4 cascades, blur radius 1.0, scale bias 2.5)
https://v3d.net/lvjIt’s kinda art to tune the sun’s shadows )))
ESM shadows? I wouldn’t recommend using them at all. They are slow and they are aweful.
https://www.soft8soft.com/topic/verge3d-4-5-pre1-available/#post-66586Puzzles and JS coding. Fast and expensive.
If you don’t see the meaning in something it primarily means that you just don’t see it but not the absence of the meaning at all.
2024-04-24 at 2:27 am #72476hans
Customer<p data-immersive-translate-walked=”f182feb6-d2c1-46ed-aedd-ba5e155df377″ data-immersive-translate-paragraph=”1″>Hello<br data-immersive-translate-walked=”f182feb6-d2c1-46ed-aedd-ba5e155df377″>
It seems that theMargin
is too large and/orESM Bias
is not configured correctly.<br data-immersive-translate-walked=”f182feb6-d2c1-46ed-aedd-ba5e155df377″>
To better understand the problem, could you please provide a minimal version of the scene where the problem persists?@Nurgeldi Doletov
Hello
I have tried various values for Margin and ESM Bias, but I have not been able to solve the problem
I will provide you with the minimum 3dsmax model for persistent issues
Link: https://pan.baidu.com/s/116ki6GX6eDpVB9wN3ZRx9A?pwd=55sr
If more complex scenarios are needed, I can provide them later2024-04-24 at 2:38 am #72477hans
CustomerThank you KDV. Your scene is fantastic.
But I need a very large scene, such as: 1 square kilometer2024-04-24 at 2:41 am #72478kdv
Participantdecrese the scale. even if you scene is 100m by 100m you can present it as 1km by 1 km. For example, thise tiny scene seems to be a quite large scene.
https://v3d.net/m5oThis parameter affects the quality of the sun’s shadows significantly:
Puzzles and JS coding. Fast and expensive.
If you don’t see the meaning in something it primarily means that you just don’t see it but not the absence of the meaning at all.
2024-04-24 at 7:09 am #72487hans
CustomerPerhaps my scene is more complex…
Your scene’s shadow edges have become jagged, you can pull the camera closer to verify2024-04-24 at 8:21 am #72488kdv
ParticipantYour scene’s shadow edges have become jagged
They are always jagged in any case.
Blur Radius
makes them smoother. In that demo the blurring radius is just 1,5. Comparing to your second screenshot there is no jagging at all ))) Also you could compare to this demo. But who am I to give you advice on getting good shadows? It’s only between you and S8SPuzzles and JS coding. Fast and expensive.
If you don’t see the meaning in something it primarily means that you just don’t see it but not the absence of the meaning at all.
2024-04-25 at 3:08 am #72500hans
CustomerThank you for your suggestion
PCF (Poisson Disk) shadow, after many attempts, the effect is suitable for large scenes.
During this process, the distance between the light and the target cannot exceed 300 meters, otherwise there will be projection errors.
ESM shadows are not suitable for large scenes because their edge aliasing problem cannot be solved.-
This reply was modified 4 months, 2 weeks ago by
hans.
2024-04-25 at 7:55 am #72503Nurgeldi Dovletov
StaffYes, in general the problem with ESM is that they are quite hard to set up, so it is best to use CSM with PCF (Poission Disk).
It might be helpful, these are the settings that gave the best results for me:https://v3d.net/v57 (4096px shadow map)
https://v3d.net/v58 (2048px shadow map)Attachments:
You must be logged in to view attached files.Verge3D Developer
2024-04-25 at 9:46 am #72507kdv
Participanthttps://v3d.net/v57 (4096px shadow map)
Increase the blur radius to 2.0 for even better result (less jagging, softer shadows)
https://v3d.net/v5dPuzzles and JS coding. Fast and expensive.
If you don’t see the meaning in something it primarily means that you just don’t see it but not the absence of the meaning at all.
2024-04-26 at 3:29 am #72530hans
CustomerGreat!
I think it’s perfect.
Thank you very much to Nurgeldi Doletov and kdv. -
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