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Shadow_v2 Op



add shadow capabilities to any material

This op is an extension for all materials. If attached after one, the material will have the capabilities to receive shadows.
Four different shadow algorithms are selectable.

It is also possible to use an opacity mask to discard parts of a mesh ("punch holes" into shadows).

The example on the right is a minimal example for the new Shadow op.

For intermediate examples, please refer to the shadow documentation and these patches:

Multiple occluders:

Multiple occluders & multiple lights:

If you want to see a more advanced example, visit this patch:


Trigger In (Trigger)

trigger input

Cast Shadow (boolean /Number)

if true, following meshes will cast shadows, if false, following geometries will NOT cast shadows

Receive Shadow (boolean /Number)

if true, following meshes will receive shadows

Algorithm index (integer /Number)

index for algorithm

Shadow Settings

Algorithm (String)

choose between the 4 algorithms: Default, PCF (Percentage-Closer Filtered Shadows), Poisson, VSM (Variance Shadow Mapping)

Samples index (integer /Number)

Shadow Settings

Samples (String)

only active when PCF or Poisson algorithm is used: amount of samples taken to soften shadows

Sample Distribution (integer /Number)

distribution of sampled points, the higher the value, the smaller the "wash", if the value is too low, step artefacts can occur

R (Number)

R color channel of the shadow

G (Number)

G color channel of the shadow

B (Number)

B color channel of the shadow

Discard Transparent (boolean /Number)

Opacity Settings

Opacity Threshold (Number)

alpha threshold for discarding pixels

Alpha Mask Source index (integer /Number)

Opacity Settings

Alpha Mask Source (String)

source channel of texture for discarding pixels: r, g, b, a or luminance

Opacity Texture (Object)

alpha texture input


Trigger Out (Trigger)

trigger output

Caught a mistake or want to contribute to the documentation?

Edit Documentation 

Shadow - Example

Adds shadows to your 3D Models

Open Example In Editor

Patches using Shadow_v2


Ops.User.cables.ShadowModuleWithoutStruct renamed to Ops.Admin.ShadowModuleModifier
2020-06-25 - cables

added core lib: cgl_shadermodifier
2020-06-30 - cables

Ops.Admin.ShadowModuleModifier renamed to Ops.Gl.ShaderEffects.Shadow_v2
2020-07-29 - pandur