How to use OSL in Redshift 3D and Cinema4D

Here's a step-by-step guide to using OSL scripts in Redshift 3D/Cinema4D:

Once Redshift is installed, open the Material Editor in Cinema 4D. Then, create or select a Redshift material. In the Attribute Manager, locate the "Material Graph" button, and click on it to open the Redshift Material Graph.

In the Redshift Material Graph, you will see a variety of nodes representing different material functions. To use the OSL Script node, click the "Add Node" button (looks like a plus "+"), or you can right-click on the graph background and choose "Add Node."

Step 3: Locate OSL Script Node

In the node library, search for the "OSL Script" node. This node allows you to write custom shaders using Open Shading Language.

Step 4: Create OSL Shader

Drag and drop the OSL Script node onto the Material Graph canvas. Double-click on the node to open the OSL editor where you can use your custom shader using the Open Shading Language.

Step 5: Connect OSL Node in Material Graph

After you've written the OSL code, close the OSL editor. Now, you need to connect the OSL Script node to other nodes in the Material Graph to define how it affects the material properties. For example, you might connect it to a Diffuse node, Bump node, etc.

Step 6: Compile OSL Code

Once you have set up your OSL Script node and connected it to other nodes in the Material Graph, Redshift will automatically compile the OSL code and update the material preview in the Material Editor.

Step 7: Adjust Material Settings

Depending on the parameters you defined in your OSL code, you may need to adjust settings in the connected nodes to fine-tune the material's appearance.

Step 8: Assign the Material to an Object

Finally, once you are satisfied with your custom material, assign it to the desired object in your scene by dragging the material onto the object or using Cinema 4D's Material Tag.