[Screenshot 2023-07-09 at 13.27.50] In the screenshot notice the dark line at the left edge of the shadow. Is it possible to remove this. It shouldn’t be there.

Depends on how that line is created. Depends on how that shadows are created.

:point_up_2::100: if using shadow maps - but the shadows above look like ContactShadows a little, in which case castShadow probably won’t have much effect - the visibility of mesh would need to be toggled pre- and post- shadow plane rendering.

The default for mesh.castShadow is false, that didn’t fix it.

The line is an unwanted artefact. light = new THREE.DirectionalLight(); light.position.set(1,15,1); light.castShadow = true; light.shadow.mapSize.width = 256; light.shadow.mapSize.height = 256; light.shadow.camera.near = 0.5; light.shadow.camera.far = 25; light.shadow.radius = 7; light.shad…

any chance you can share a live example?

https://niklever.com/mycourses/threejs-cookbook/complete/lighting/shadows.html

light.shadow.bias=-0.001; [image]

In that particular example, the bias solution worked ok because the balls are not touching the shadow surface. I you have a more complex shadow, and apply bias to remove the shadow map outline (which I think is a bug ) it could push the object shadows too far back, like in this example: …

Hide line from Shadow

Questions

Chaser_Code July 12, 2023, 7:31am 10

light.shadow.bias=-0.001;

Shadow artifacts with WebGPURenderer VSMShadowMap

Topic		Replies	Views
Remove edge highlighting when using shadows Questions shadows	11	1982	February 22, 2022
Shadow artifacts with WebGPURenderer VSMShadowMap Questions shadows , lights , webgpu	5	262	January 12, 2026
Hello, I am facing the problem with shadow stripes on model Questions shadows	10	6491	June 7, 2024
Weird shadow lines on my terrain Questions shadows	2	3580	November 26, 2018
Pixel shadows between adjacent meshes Questions mesh , shadows , lights	3	820	August 27, 2022

Hide line from Shadow

Related topics