matrix3i_ptr.c file
Functions
- void mat3i_identity_ptr(matrix3i* res)
- Fills the given 3x3 integer matrix with the identity matrix.
- void mat3i_mul_ptr(matrix3i* res, const matrix3i* a, const matrix3i* b)
- Multiplies two 3x3 integer matrices (standard matrix multiplication).
- void mat3i_transpose_ptr(matrix3i* res, const matrix3i* m)
- Computes the transpose of a 3x3 integer matrix.
- void mat3i_inverse_ptr(matrix3i* res, const matrix3i* m)
- Computes the inverse of a 3x3 integer matrix using adjugate over determinant.
- void mat3i_mul_vec3i_ptr(vector3i* res, const matrix3i* m, const vector3i* v)
- Multiplies a 3x3 integer matrix by a vector3i.
- void mat3i_mul_vec2i_ptr(vector2i* res, const matrix3i* m, const vector2i* v)
- Applies a 3x3 integer affine transform to a vector2i.
Function documentation
void mat3i_identity_ptr(matrix3i* res)
Fills the given 3x3 integer matrix with the identity matrix.
| Parameters | |
|---|---|
| res | Pointer to the result matrix. |
void mat3i_mul_ptr(matrix3i* res, const matrix3i* a, const matrix3i* b)
Multiplies two 3x3 integer matrices (standard matrix multiplication).
| Parameters | |
|---|---|
| res | Pointer to the result matrix. |
| a | Pointer to the first input matrix. |
| b | Pointer to the second input matrix. |
void mat3i_transpose_ptr(matrix3i* res, const matrix3i* m)
Computes the transpose of a 3x3 integer matrix.
| Parameters | |
|---|---|
| res | Pointer to the result matrix. |
| m | Pointer to the input matrix. |
void mat3i_inverse_ptr(matrix3i* res, const matrix3i* m)
Computes the inverse of a 3x3 integer matrix using adjugate over determinant.
| Parameters | |
|---|---|
| res | Pointer to the result matrix. |
| m | Pointer to the input matrix. |
If the determinant is zero (singular), sets the result to the identity matrix.
void mat3i_mul_vec3i_ptr(vector3i* res, const matrix3i* m, const vector3i* v)
Multiplies a 3x3 integer matrix by a vector3i.
| Parameters | |
|---|---|
| res | Output value. |
| m | Input matrix. |
| v | Input vector. |
void mat3i_mul_vec2i_ptr(vector2i* res, const matrix3i* m, const vector2i* v)
Applies a 3x3 integer affine transform to a vector2i.
| Parameters | |
|---|---|
| res | Output value. |
| m | Input matrix. |
| v | Input vector. |