static void gst_gl_transformation_build_mvp (GstGLTransformation * transformation) { graphene_point3d_t translation_vector = GRAPHENE_POINT3D_INIT (transformation->xtranslation, transformation->ytranslation, transformation->ztranslation); graphene_matrix_t model_matrix; graphene_matrix_t projection_matrix; graphene_matrix_t view_matrix; graphene_matrix_t vp_matrix; graphene_vec3_t eye; graphene_vec3_t center; graphene_vec3_t up; graphene_vec3_init (&eye, 0.f, 0.f, 1.f); graphene_vec3_init (¢er, 0.f, 0.f, 0.f); graphene_vec3_init (&up, 0.f, 1.f, 0.f); graphene_matrix_init_rotate (&model_matrix, transformation->xrotation, graphene_vec3_x_axis ()); graphene_matrix_rotate (&model_matrix, transformation->yrotation, graphene_vec3_y_axis ()); graphene_matrix_rotate (&model_matrix, transformation->zrotation, graphene_vec3_z_axis ()); graphene_matrix_scale (&model_matrix, transformation->xscale, transformation->yscale, 1.0f); graphene_matrix_translate (&model_matrix, &translation_vector); if (transformation->ortho) { graphene_matrix_init_ortho (&projection_matrix, -transformation->aspect, transformation->aspect, -1, 1, transformation->znear, transformation->zfar); } else { graphene_matrix_init_perspective (&projection_matrix, transformation->fovy, transformation->aspect, transformation->znear, transformation->zfar); } graphene_matrix_init_look_at (&view_matrix, &eye, ¢er, &up); graphene_matrix_multiply (&projection_matrix, &view_matrix, &vp_matrix); graphene_matrix_multiply (&vp_matrix, &model_matrix, &transformation->mvp_matrix); }
GRAPHENE_TEST_UNIT_END GRAPHENE_TEST_UNIT_BEGIN (ray_matrix_transform) { graphene_ray_t r, res; graphene_matrix_t m; if (g_test_verbose ()) g_test_message ("Identity matrix..."); graphene_ray_init (&r, &one3, graphene_vec3_z_axis ()); graphene_matrix_init_identity (&m); graphene_matrix_transform_ray (&m, &r, &res); g_assert_true (graphene_ray_equal (&r, &res)); if (g_test_verbose ()) g_test_message ("Rotation matrix: rotateZ(90deg)"); graphene_ray_init (&r, &zero3, graphene_vec3_z_axis ()); graphene_matrix_init_rotate (&m, 90, graphene_vec3_z_axis ()); graphene_matrix_transform_ray (&m, &r, &res); g_assert_true (graphene_ray_equal (&r, &res)); }