WaveSimulation2D_Real() [1/2]

fl::WaveSimulation2D_Real::WaveSimulation2D_Real	(	u32	W,
		u32	H,
		float	speed = 0.16f,
		float	dampening = 6.0f )

Definition at line 185 of file wave_simulation_real.cpp.hpp.

    : width(W), height(H), stride(W + 2),
      grid1((W + 2) * (H + 2)),
      grid2((W + 2) * (H + 2)), whichGrid(0),
      // CFL stability bound for the explicit leapfrog 5-point stencil in 2D
      // is C^2 <= 1/2. Negative speed has no physical meaning. Clamp at the
      // boundary to keep the Q15 fixed-point kernel both stable and within
      // i32 overflow margins (paired with the i64 promote in update()).
      mCourantSq(wave_detail::float_to_fixed(fl::clamp(speed, 0.0f, 0.5f))),
      // Dampening exponent; e.g., 6 means a factor of 2^6 = 64.
      mDampening(static_cast<int>(dampening)),
      mDampDecayQ15(wave_detail::compute_damp_decay_q15(static_cast<int>(dampening))) {}

References fl::clamp(), fl::wave_detail::compute_damp_decay_q15(), dampening(), fl::FL_NO_EXCEPT, fl::wave_detail::float_to_fixed(), grid1, grid2, H, mCourantSq, mDampDecayQ15, mDampening, speed, stride, W, and whichGrid.

Referenced by ~WaveSimulation2D_Real().

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