diff options
Diffstat (limited to 'source/blender/blenlib/BLI_float4x4.hh')
| -rw-r--r-- | source/blender/blenlib/BLI_float4x4.hh | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/source/blender/blenlib/BLI_float4x4.hh b/source/blender/blenlib/BLI_float4x4.hh index f5ba91bc12c..396b0b1bd21 100644 --- a/source/blender/blenlib/BLI_float4x4.hh +++ b/source/blender/blenlib/BLI_float4x4.hh @@ -45,6 +45,37 @@ struct float4x4 { return mat; } + static float4x4 from_normalized_axis_data(const float3 location, + const float3 forward, + const float3 up) + { + BLI_ASSERT_UNIT_V3(forward); + BLI_ASSERT_UNIT_V3(up); + float4x4 matrix; + const float3 cross = float3::cross(forward, up); + matrix.values[0][0] = forward.x; + matrix.values[1][0] = cross.x; + matrix.values[2][0] = up.x; + matrix.values[3][0] = location.x; + + matrix.values[0][1] = forward.y; + matrix.values[1][1] = cross.y; + matrix.values[2][1] = up.y; + matrix.values[3][1] = location.y; + + matrix.values[0][2] = forward.z; + matrix.values[1][2] = cross.z; + matrix.values[2][2] = up.z; + matrix.values[3][2] = location.z; + + matrix.values[0][3] = 0.0f; + matrix.values[1][3] = 0.0f; + matrix.values[2][3] = 0.0f; + matrix.values[3][3] = 1.0f; + + return matrix; + } + static float4x4 identity() { float4x4 mat; @@ -116,6 +147,19 @@ struct float4x4 { return scale; } + void apply_scale(const float scale) + { + values[0][0] *= scale; + values[0][1] *= scale; + values[0][2] *= scale; + values[1][0] *= scale; + values[1][1] *= scale; + values[1][2] *= scale; + values[2][0] *= scale; + values[2][1] *= scale; + values[2][2] *= scale; + } + float4x4 inverted() const { float4x4 result; |