In Adobe Photoshop , you can use a displacement map to make text conform to the texture of a surface, making it look authentically solid and "built-in". Quick Download & Use Workflow

You can create "solid" extruded text by using the free Canva 3D text generator or the Type Extrude app. This allows you to stretch text to give it a long shadow or deep 3D effect.

Use apps like Typecraft in Canva to adjust the corners of your text so it follows the perspective of a road or surface.

Always export with a transparent background so you can place your solid text over any video or image.

For a truly professional "solid" look (like metallic or stone text), you can download free .PSD text effect files from sites like FreeP and open them in the Photopea online editor . You simply double-click the smart object layer to type your own text, and it inherits the complex solid styling. Creating Realistic Surface Effects