Disable writing to the depth buffer in a shader

ZWrite sets whether the depth bufferA memory store that holds the z-value depth of each pixel in an image, where the z-value is the depth for each rendered pixel from the projection plane. More info
See in Glossary contents are updated during rendering. Normally, ZWrite is enabled for opaque objects and disabled for semi-transparent ones.

Disabling ZWrite can lead to incorrect depth ordering. In this case, you need to sort geometry on the CPU.

Examples

This example code demonstrates the syntax for using this command in a Pass block.

Shader "Examples/CommandExample"
{
    SubShader
    {
         // The rest of the code that defines the SubShader goes here.

        Pass
        {    
              // Disables writing to the depth buffer for this Pass
              ZWrite Off
            
              // The rest of the code that defines the Pass goes here.
        }
    }
}

This example code demonstrates the syntax for using this command in a SubShader block.

Shader "Examples/CommandExample"
{
    SubShader
    {
         // Disables writing to the depth buffer for this SubShader
         ZWrite Off

         // The rest of the code that defines the SubShader goes here.        

        Pass
        {    
              // The rest of the code that defines the Pass goes here.
        }
    }
}

Additional Resources

• ZWrite command in ShaderLab reference