| <!DOCTYPE html> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="resources/webxr_test_constants.js"></script> |
| <script src="resources/webxr_test_asserts.js"></script> |
| <script src="resources/webxr_math_utils.js"></script> |
| |
| <script> |
| |
| let matrix_tests_name = "XRRay matrix works"; |
| |
| let matrix_tests = function() { |
| // Matrix tests for XRRay. |
| // Spec: https://immersive-web.github.io/webxr/#xrray-interface |
| |
| const initialOrigin = {x : 0, y : 0, z : 0, w : 1}; |
| const initialDirection = {x : 0, y : 0, z : -1, w : 0}; |
| |
| // Test 1. Simple translation and rotation. |
| { |
| let originDict = {x : 10.0, y : 10.0, z : 10.0, w : 1.0}; |
| let directionDict = {x : 10.0, y : 0.0, z : 0.0, w : 0.0}; |
| let directionNorm = {x : 1.0, y : 0.0, z : 0.0, w : 0.0}; |
| let xrRay = new XRRay( |
| DOMPoint.fromPoint(originDict), |
| DOMPoint.fromPoint(directionDict)); |
| |
| let transformedOrigin = normalize_perspective(transform_point_by_matrix(xrRay.matrix, initialOrigin)); |
| let transformedDirection = normalize_perspective(transform_point_by_matrix(xrRay.matrix, initialDirection)); |
| |
| assert_point_approx_equals( |
| originDict, transformedOrigin, |
| FLOAT_EPSILON, "origin-test1:"); |
| assert_point_approx_equals( |
| directionNorm, transformedDirection, |
| FLOAT_EPSILON, "direction-test1:"); |
| } |
| |
| // Test 2. Co-linear direction - rotation by 180 deg. |
| { |
| let originDict = {x : 10.0, y : 10.0, z : 10.0, w : 1.0}; |
| let directionDict = {x : 0.0, y : 0.0, z : 1.0, w : 0.0}; |
| let directionNorm = {x : 0.0, y : 0.0, z : 1.0, w : 0.0}; |
| let xrRay = new XRRay( |
| DOMPoint.fromPoint(originDict), |
| DOMPoint.fromPoint(directionDict)); |
| |
| let transformedOrigin = normalize_perspective(transform_point_by_matrix(xrRay.matrix, initialOrigin)); |
| let transformedDirection = normalize_perspective(transform_point_by_matrix(xrRay.matrix, initialDirection)); |
| |
| assert_point_approx_equals( |
| originDict, transformedOrigin, |
| FLOAT_EPSILON, "origin-test2:"); |
| assert_point_approx_equals( |
| directionNorm, transformedDirection, |
| FLOAT_EPSILON, "direction-test2:"); |
| } |
| |
| // Test 3. No translation. |
| { |
| let originDict = {x : 0.0, y : 0.0, z : 0.0, w : 1.0}; |
| let directionDict = {x : 10.0, y : 0.0, z : 0.0, w : 0.0}; |
| let directionNorm = {x : 1.0, y : 0.0, z : 0.0, w : 0.0}; |
| let xrRay = new XRRay( |
| DOMPoint.fromPoint(originDict), |
| DOMPoint.fromPoint(directionDict)); |
| |
| let transformedOrigin = normalize_perspective(transform_point_by_matrix(xrRay.matrix, initialOrigin)); |
| let transformedDirection = normalize_perspective(transform_point_by_matrix(xrRay.matrix, initialDirection)); |
| |
| assert_point_approx_equals( |
| originDict, transformedOrigin, |
| FLOAT_EPSILON, "origin-test3:"); |
| assert_point_approx_equals( |
| directionNorm, transformedDirection, |
| FLOAT_EPSILON, "direction-test3:"); |
| } |
| |
| // Test 4. No rotation. |
| { |
| let originDict = {x : 10.0, y : 10.0, z : 10.0, w : 1.0}; |
| let directionDict = {x : 0.0, y : 0.0, z : -1.0, w : 0.0}; |
| let directionNorm = {x : 0.0, y : 0.0, z : -1.0, w : 0.0}; |
| let xrRay = new XRRay( |
| DOMPoint.fromPoint(originDict), |
| DOMPoint.fromPoint(directionDict)); |
| |
| let transformedOrigin = normalize_perspective(transform_point_by_matrix(xrRay.matrix, initialOrigin)); |
| let transformedDirection = normalize_perspective(transform_point_by_matrix(xrRay.matrix, initialDirection)); |
| |
| assert_point_approx_equals( |
| originDict, transformedOrigin, |
| FLOAT_EPSILON, "origin-test4:"); |
| assert_point_approx_equals( |
| directionNorm, transformedDirection, |
| FLOAT_EPSILON, "direction-test4:"); |
| } |
| }; |
| |
| test(matrix_tests, matrix_tests_name); |
| |
| </script> |
