53 #define LERP(T, A, B)  ( (A) + (T) * ((B) - (A)) )  macro
68    const GLfloat temp0 = LERP(a, v00, v10);  in lerp_2d()
69    const GLfloat temp1 = LERP(a, v01, v11);  in lerp_2d()
70    return LERP(b, temp0, temp1);  in lerp_2d()
83    const GLfloat temp00 = LERP(a, v000, v100);  in lerp_3d()
84    const GLfloat temp10 = LERP(a, v010, v110);  in lerp_3d()
85    const GLfloat temp01 = LERP(a, v001, v101);  in lerp_3d()
86    const GLfloat temp11 = LERP(a, v011, v111);  in lerp_3d()
87    const GLfloat temp0 = LERP(b, temp00, temp10);  in lerp_3d()
88    const GLfloat temp1 = LERP(b, temp01, temp11);  in lerp_3d()
89    return LERP(c, temp0, temp1);  in lerp_3d()
99    result[0] = LERP(t, a[0], b[0]);  in lerp_rgba()
100    result[1] = LERP(t, a[1], b[1]);  in lerp_rgba()
101    result[2] = LERP(t, a[2], b[2]);  in lerp_rgba()
102    result[3] = LERP(t, a[3], b[3]);  in lerp_rgba()