DEFINE_DPM_SOURCE形参中的dpms_t *S，用来包含cell的源项，typedef struct dpms_struct { real mass;...
DEFINE_DPM_SOURCE(dpm_source, c, t, S, strength, p){ real mp_dot;Material *sp = P_...
DEFINE_DPM_SOURCE(dpm_source, c, t, S, strength, p){ real mp_dot;Material *sp = P_...