103 lines
2.4 KiB
C++
103 lines
2.4 KiB
C++
// Copyright (C) 2022 RozK
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include "math.hpp"
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void rk_vec3_rotate(
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rk_vec3 & ret,
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rk_vec3 const & vec3,
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rk_vec3 const & axis,
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rk_float const angle) {
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ret = glm::angleAxis(angle, axis) * vec3;
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}
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void rk_vec3_mul_vec3(
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rk_vec3 & ret,
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rk_vec3 const & a,
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rk_vec3 const & b) {
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ret = a * b;
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}
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void rk_mat3_rotation(
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rk_mat3 & ret,
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rk_vec3 const & axis,
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rk_float const angle) {
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ret = glm::mat3_cast(glm::angleAxis(angle, axis));
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}
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void rk_mat3_mul_vec3(
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rk_vec3 & ret,
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rk_mat3 const & a,
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rk_vec3 const & b) {
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ret = a * b;
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}
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void rk_mat3_mul_mat3(
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rk_mat3 & ret,
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rk_mat3 const & a,
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rk_mat3 const & b) {
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ret = a * b;
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}
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void rk_mat4_projection(
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rk_mat4 & ret,
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rk_float hfov,
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rk_float ratio,
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rk_float near,
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rk_float far) {
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ret = glm::perspectiveRH(hfov, ratio, near, far);
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}
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void rk_mat4_lookat(
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rk_mat4 & ret,
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rk_vec3 const & position,
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rk_vec3 const & lookat) {
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ret = glm::lookAtRH(position, lookat, vec3_up);
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}
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void rk_mat4_orbit(
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rk_mat4 & ret,
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rk_vec3 const & origin,
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rk_float const yaw,
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rk_float const pitch,
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rk_float const distance) {
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ret = glm::translate(
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glm::lookAtRH(glm::vec3(0.f, -distance, 0.f), vec3_origin, vec3_up) *
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glm::mat4(glm::angleAxis(pitch, vec3_right) * glm::angleAxis(yaw, vec3_up)),
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origin);
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}
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void rk_mat4_mul_vec3(
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rk_vec3 & ret,
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rk_mat4 const & a,
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rk_vec3 const & b,
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rk_float const w) {
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ret = glm::vec3(a * glm::vec4(b, w));
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}
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void rk_mat4_mul_vec4(
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rk_vec4 & ret,
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rk_mat4 const & a,
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rk_vec4 const & b) {
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ret = a * b;
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}
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void rk_mat4_mul_mat4(
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rk_mat4 & ret,
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rk_mat4 const & a,
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rk_mat4 const & b) {
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ret = a * b;
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}
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