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add opengl

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This commit is contained in:
Andrey Zimin
2024-05-15 10:57:21 +03:00
parent a0b5e810f7
commit b1d693dbd4
9 changed files with 130 additions and 44 deletions
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61
bin/layers/opengl_panel/opengl_panel.cpp
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@@ -55,46 +55,53 @@ namespace sandbox
void opengl_panel::render()
{
// glm::mat4 view = glm::lookAt(cameraPos, cameraPos + cameraFront, cameraUp);
// glm::mat4 projection = glm::perspective(glm::radians(45.0f), 800.0f / 600.0f, 0.1f, 100.0f);
cb_1.use();
// unsigned int viewLoc = glGetUniformLocation(cb_1.get_id(), "view");
// glUniformMatrix4fv(viewLoc, 1, GL_FALSE, glm::value_ptr(view));
// unsigned int projLoc = glGetUniformLocation(cb_1.get_id(), "projection");
// glUniformMatrix4fv(projLoc, 1, GL_FALSE, glm::value_ptr(projection));
m_cb_1.use();
m_cam.update(m_cb_1);
float r = std::sin(glfwGetTime());
float g = std::cos(glfwGetTime());
cb_1.set_color(glm::vec4{ 0.85f, 0.45f, 0.95f, 0.f }); // розовый
cb_1.set_scale(1.0f + std::sin(glfwGetTime()) * 0.2f);
cb_1.set_position(glm::vec3{ 0.f, 0.5, 0.f });
cb_1.render();
m_cb_1.set_color(glm::vec4{ 0.85f, 0.45f, 0.95f, 0.f }); // розовый
m_cb_1.set_scale(1.0f + std::sin(glfwGetTime()) * 0.2f);
m_cb_1.set_position(glm::vec3{ 0.f, 0.5, 0.f });
m_cb_1.render();
r = std::cos(glfwGetTime());
g = std::sin(glfwGetTime());
cb_2.use();
m_cb_2.use();
// unsigned int viewLoc_1 = glGetUniformLocation(cb_2.get_id(), "view");
// glUniformMatrix4fv(viewLoc_1, 1, GL_FALSE, glm::value_ptr(view));
// unsigned int projLoc_1 = glGetUniformLocation(cb_2.get_id(), "projection");
// glUniformMatrix4fv(projLoc_1, 1, GL_FALSE, glm::value_ptr(projection));
m_cam.update(m_cb_2);
cb_2.set_color(glm::vec4{ 0.66f, 0.66f, 0.66f, 0.f }); // серый/белый
cb_2.set_scale(1.0f - std::cos(glfwGetTime()) * 0.2f);
cb_2.set_position(glm::vec3{ r, g, 0.f });
cb_2.render();
m_cb_2.set_color(glm::vec4{ 0.66f, 0.66f, 0.66f, 0.f }); // серый/белый
m_cb_2.set_scale(1.0f - std::cos(glfwGetTime()) * 0.2f);
m_cb_2.set_position(glm::vec3{ r, g, 0.f });
m_cb_2.render();
}
void opengl_panel::on_event(VE::event e)
{
// для событий от перефирии
// if (e.m_type.type() == typeid(VE::event_type))
// {
// auto t = std::any_cast<VE::event_type>(e.m_type);
// if (t != VE::event_type::MOUSE_CURSOR_POSITION)
// hack::log()((int)t);
// }
if (e.m_type.type() == typeid(VE::event_type))
{
auto t = std::any_cast<VE::event_type>(e.m_type);
if (t == VE::event_type::MOUSE_CURSOR_POSITION)
{
auto [pos_x, pos_y] = std::any_cast<std::pair<float, float>>(e.m_data);
m_cam.mouse_callback(pos_x, pos_y);
}
if (t == VE::event_type::KEY_REPEATE || t == VE::event_type::KEY_PRESSED)
{
auto key = std::any_cast<int>(e.m_data);
if (key == VE::key::W)
m_cam.up();
if (key == VE::key::S)
m_cam.down();
if (key == VE::key::A)
m_cam.left();
if (key == VE::key::D)
m_cam.right();
}
}
if (e.m_type.type() == typeid(test_event))
{

70
bin/layers/opengl_panel/opengl_panel.hpp
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@@ -19,12 +19,78 @@ namespace sandbox
void render();
};
struct camera
{
// Начальное положение камеры
mt::vec3 m_pos = mt::vec3{ 0.0f, 0.0f, 3.0f };
mt::vec3 m_front = mt::vec3{ 0.0f, 0.0f, -1.0f };
mt::vec3 m_up = mt::vec3{ 0.0f, 1.0f, 0.0f };
float m_speed = 0.05f;
glm::mat4 m_view, m_projection;
void up() { m_pos += m_speed * m_front; }
void down() { m_pos -= m_speed * m_front; }
void left() { m_pos -= mt::normalize(mt::cross(m_front, m_up)) * m_speed; }
void right() { m_pos += mt::normalize(mt::cross(m_front, m_up)) * m_speed; }
template<typename T>
void update(const T& obj)
{
m_view = glm::lookAt(m_pos, m_pos + m_front, m_up);
m_projection = glm::perspective(glm::radians(45.0f),
static_cast<float>(VE::application::get()->get_glfw()->width()) / VE::application::get()->get_glfw()->height(),
0.1f, 100.0f);
glUniformMatrix4fv(glGetUniformLocation(obj.get_id(), "view"), 1, GL_FALSE, mt::value_ptr(m_view));
glUniformMatrix4fv(glGetUniformLocation(obj.get_id(), "projection"), 1, GL_FALSE, glm::value_ptr(m_projection));
}
// Управление камерой через мышь
bool m_first = true;
float m_yaw = -90.0f;
float m_pitch = 0.0f;
float m_last_x = 400, m_last_y = 300;
void mouse_callback(double xpos, double ypos)
{
if (m_first)
{
m_last_x = xpos;
m_last_y = ypos;
m_first = false;
}
float x_offset = xpos - m_last_x;
float y_offset = m_last_y - ypos;
m_last_x = xpos;
m_last_y = ypos;
float sensitivity = 0.1f;
x_offset *= sensitivity;
y_offset *= sensitivity;
m_yaw += x_offset;
m_pitch += y_offset;
if (m_pitch > 89.0f) m_pitch = 89.0f;
if (m_pitch < -89.0f) m_pitch = -89.0f;
mt::vec3 front;
front.x = std::cos(mt::radians(m_yaw)) * std::cos(mt::radians(m_pitch));
front.y = std::sin(mt::radians(m_pitch));
front.z = std::sin(mt::radians(m_yaw)) * std::cos(mt::radians(m_pitch));
m_front = mt::normalize(front);
}
};
class opengl_panel : public VE::layer
{
VE_FN_OVERIDE();
cube cb_1;
cube cb_2;
cube m_cb_1;
cube m_cb_2;
camera m_cam;
};
}

3
bin/layers/opengl_panel/shaders/vertes.shader
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@@ -15,8 +15,7 @@ out vec4 v_color;
void main()
{
vec3 p = base_position + position * scale ;
// gl_Position = projection * view * vec4(p, 1.0);
gl_Position = vec4(p, 1.0);
gl_Position = projection * view * vec4(p, 1.0);
v_color = color;
}