# Tutorial #1 - Texture Blend
In the previous tutorial we have created a simple shader for visualizing volumetric mask and demonstrated how to update and control its settings using script. Now we will extend that shader for creating season changing effect - Summer vs Winter.
Output of the DRM node is a *float* value mask and it can be used for interpolating one shader value into another, for example interpolating two textures:
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Shader above can be improved even more for interpolating not only BaseMaps, but NormalMaps too and adjusting Smoothness and Emission based on the DRM node value:
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Improved Snow shader is included in the package
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All DRM node's visual settings are controlled from the **DRM Game Object** script except **Noise**, that is a part of the shader itself. Add noise texture (or any procedural noise node) and use it for **Noise** input of the DRM node. Now adjusting **Noise Strength** property from the **DRM Game Object** script will affect DRM effect:
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