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Commits on Apr 24, 2026

• Added way to create mat3 from three vec3 vectors. Added differentiation rule for grad of integer exponent expression.

  SteveMaas1978

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Commits on Apr 23, 2026

• Fixed bug in compiler::endscope: it was not decreasing the local stack size.

  SteveMaas1978

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• Added op codes for expanding one-argument constructor for vec2 and vec3.

  SteveMaas1978

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Commits on Apr 22, 2026

• Refactored scripted component classes: now using composition with FEScriptedBehavior instead of inheritance.

  SteveMaas1978

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Commits on Apr 19, 2026

• Ensured that input variables are preserved during differentiation.

  SteveMaas1978

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Commits on Apr 17, 2026

• Added "traction script" load. Fixed various isses with febcode. Added option to differentiator to choose to simplify or not.

  SteveMaas1978

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• Fixed bug in scripted pressure load. Implemented support for div operator for vector/matrix and scalar type.

  SteveMaas1978

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• Major refactoring of febcode structure to better support linear algebra operations. Introduced Resolver for semantic analysis.

  SteveMaas1978

  committed
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Commits on Apr 1, 2026

• Allowed int to double conversions.

  SteveMaas1978

  committed
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• Added support for taking gradient of a script, which will either return a vec3 or a mat3 script, depending on the original code's return type. Modified pretty string formatting.

  SteveMaas1978

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Commits on Mar 30, 2026

• Implemented support for for-loop.

  SteveMaas1978

  committed
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• Structs are now also initialized via constructors. Initializer lists can now only be used for arrays.

  SteveMaas1978

  committed
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• Vec2, vec3, mat2, and mat3 are now initialized via constructors.

  SteveMaas1978

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Commits on Mar 29, 2026

• Some vm optimizations.

  SteveMaas1978

  committed
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Commits on Mar 28, 2026

• Some optimizations for mat3 operations.

  SteveMaas1978

  committed
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Commits on Mar 27, 2026

• Added mat2 and mat3 types, as well as basic operations.

  SteveMaas1978

  committed
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Commits on Mar 26, 2026

• Added SQR and SQRT op codes. Added check to FEPhysicsProperty to see if a derivative is available.

  SteveMaas1978

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Commits on Mar 24, 2026

• Added support for input variables to febcode.

  SteveMaas1978

  committed
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Commits on Mar 23, 2026

• VM now uses stack of doubles.

  SteveMaas1978

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• Refs are no longer stored on the VM stack.

  SteveMaas1978

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• Structs are now also flattened in VM.

  SteveMaas1978

  committed
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• Arrays are now flattened in VM.

  SteveMaas1978

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Commits on Mar 22, 2026

• Vec3s are now flattended in VM.

  SteveMaas1978

  committed
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• Modifications to prepare for flattening of types. VM now flattens vec2. Removed special functions from program.

  SteveMaas1978

  committed
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• The Program::Global now stores the start index in the stack of the global var.

  SteveMaas1978

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• All opcodes are now specialized by type.

  SteveMaas1978

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Commits on Mar 21, 2026

• Added more type-specific opcodes.

  SteveMaas1978

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• Removed support for strings.

  SteveMaas1978

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Commits on Mar 20, 2026

• Switched to 8-bit instruction operands.

  SteveMaas1978

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• Added derivative for if statement. Added check to see if a AST depends on a variable. The physics parameter eliminates empty derivatives to improve performance.

  SteveMaas1978

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Commits on Mar 15, 2026

• Program now stores the AST as a std::unique_ptr.

  SteveMaas1978

  committed
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• Modified VarDeclStmt so it's easier to format in prettyPrint.

  SteveMaas1978

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Commits on Mar 11, 2026

• Recursive function calls are prohibited. Fixed issue with estimating stack size. pop() now returns a const Value& to avoid the copy.

  SteveMaas1978

  committed
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• Implemented reference semantics for assignments. VM uses fixed-size stack. Stack size is estimated during compilation.

  SteveMaas1978

  committed
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Commits on Mar 10, 2026

• Added swizzle operator for vec2 type.

  SteveMaas1978

  committed
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