Hello there I am experiencing weird problem with mesh that casts and also recieves shadows. It is “humanoid orc” mesh without any special shapes. When it casts shadows, it somehow casts it onto itself even on the side that points to the source of light and it seems somehow buggy :-/ Some ideas how…

What happens when you use full floats on the shadow generator? This is done by setting the third constructor parameter to true on the generator. Not sure if this would fix it, Id dig more but I broke my left hand today in a fall and have limited typing capabilities. :frowning:

hi. can you make playground with your environment and light setup and some ground and mesh?

It’s probably a problem with the bias (“shadow acne”): try to increase it, until wrong shadows disappear.

Hello, I believe that you mean “decrease bias” right ? Because the lower the number is, the lower bias is. I have tried to set the value to “0” and it remains the same :frowning: My shadow generator is set like this this.shadow = new BABYLON.ShadowGenerator(1024, this.light); this.shadow.bias = 0; …

Hello, here is that playground - if you comment mesh.receiveShadows = true; then it is looking ok. https://playground.babylonjs.com/#MCNF1Y#1

Ohh my gosh, I need talk to text. There is too much to explain with one hand to explain what’s going on and some fixes. If nobody helps by tomorrow, ill see if I can.

I did meant to increase the bias value: https://playground.babylonjs.com/#MCNF1Y#2 The acne is removed with the proper bias value. You can also play with the normalBias property. Have a look to the Troubleshooting section in this link for additional information about shadow generation.

Thanx for some insight ! Sadly it only helps in this simple playground scene. In real application when I set bias high enough to prevent self-shadowing, then it corrupts shadows from another objects and vice-versa. There seems to be no exact bias value that would work for all objects at all distance…

You can try with a directional light and set autoCalcShadowZBounds = true to tighten the near/far planes and see if it helps. https://playground.babylonjs.com/#MCNF1Y#3 But your plane is quite big compared to the mesh (decreasing its size will improve the shadows), so it’s hard to get a detailed s…

Hey guys try my environment solution https://playground.babylonjs.com/#MCNF1Y#4 https://playground.babylonjs.com/#MCNF1Y#5 i think you need use ambient light + directiona llight + IBL with PBR material but i dont know about performance of this combination In any case, stage lighting is never limi…

Self shadow - mesh is too dark (with PG example)

Questions

kvasss January 17, 2020, 3:27pm 15

try cascade shadow map Cascaded Shadow Maps (CSM) are now in! or documentation says for large scenes use closeBlurExponental type of shadows and in any way you need directional light

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Self shadow - mesh is too dark (with PG example)

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