Files
cglm/test/src/test_project.c
Recep Aslantas 9ab9e95ce5 Custom Built-in Unit Test Suite (#105)
* tests: new built-in test runner

* tests: update tests for new builtin test api

* tests: print test suite logs

* tests: remove cmocka from build files

* tests: colorize test suite log and remove redundant prints
2019-09-12 06:56:44 +03:00

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C

/*
* Copyright (c), Recep Aslantas.
*
* MIT License (MIT), http://opensource.org/licenses/MIT
* Full license can be found in the LICENSE file
*/
#include "test_common.h"
TEST_IMPL(project) {
mat4 model, view, proj, mvp;
vec4 viewport = {0.0f, 0.0f, 800.0f, 600.0f};
vec3 pos = {13.0f, 45.0f, 0.74f};
vec3 projected, unprojected;
glm_translate_make(model, (vec3){0.0f, 0.0f, -10.0f});
glm_lookat((vec3){0.0f, 0.0f, 0.0f}, pos, GLM_YUP, view);
glm_perspective_default(0.5f, proj);
glm_mat4_mulN((mat4 *[]){&proj, &view, &model}, 3, mvp);
glmc_project(pos, mvp, viewport, projected);
glmc_unproject(projected, mvp, viewport, unprojected);
/* unprojected of projected vector must be same as original one */
/* we used 0.01 because of projection floating point errors */
ASSERT(fabsf(pos[0] - unprojected[0]) < 0.01);
ASSERT(fabsf(pos[1] - unprojected[1]) < 0.01);
ASSERT(fabsf(pos[2] - unprojected[2]) < 0.01);
TEST_SUCCESS
}