Practice a complete source language
Choose a CAD or GPU program, change one declaration and inspect both its visible result and numeric data. The source editor contains a complete starting program. Run input submits the candidate; Reset example restores the selected preset.
CAD exercises cover rational curves, typed lengths and scalars, extrusion and original parameter domains. Start with CAD language practice. The selected preset fixes its compiler source version; changing a header alone does not select another dialect.
GPU scene exercises cover primitive declarations, styles, precedence and local transforms. Material exercises cover bounded scalar expressions, color blends and UV fields. Use GPU scene language, material language, function examples and composition examples beside the live input.
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GPU · Language · Read this example's guide
GPU scene · rotated box and sphere
Each accepted source edit compiles and draws one SDF frame. Change a size, angle or color, then select Run input.
Actual result data
Read units and support limits before adapting a program. A material changes color, not native geometry, and creates no clock. Shader Play/Pause belongs to its example host. A material's CAD-backed mesh does not change the exercise's language-learning purpose into an integrated-workflow task.