DDS Texture Converter

DDS Texture Converter for Assetto Corsa

Assetto Corsa uses the diffuse map as the main (RGB) channel and a specular map in the alpha channel. This tool outputs DDS DXT5 with your diffuse in RGB and specular/roughness in alpha.

Features

• Automatic Roughness Generation: If no roughness map is provided, one will be automatically generated from the diffuse texture using grayscale with levels adjustment.
• Invert Roughness to Specular: If you only have a roughness map, use it as-is and turn on “Invert roughness to specular” so it is converted to specular for AC’s alpha channel.
• Levels Adjustment: Fine-tune the roughness/specular map with black point, gamma, and white point controls.
• Color Corrections: Adjust brightness, contrast, and saturation of the diffuse texture.
• DXT5 Compression: Export directly to DDS with DXT5 compression, optimized for alpha channel data.

How It Works

Upload your diffuse texture and optionally a roughness or specular map. The output stores diffuse in RGB and the map in the alpha channel. If you only have a roughness map, upload it and click Invert roughness to specular so it is used correctly as specular in alpha. If you don’t provide a map, the tool can generate one from the diffuse (click “Auto Generate from Diffuse”).