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+ | FPS ~ | Single triangle shader

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TheRedShip
2024-10-15 01:10:57 +02:00
parent 9d7a30800e
commit 1c25a29c38
4 changed files with 27 additions and 9 deletions
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4
includes/Window.hpp
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@ -26,7 +26,7 @@ class Window
GLFWwindow *getWindow(void) const; GLFWwindow *getWindow(void) const;
RT::Vec2i getMousePos(void) const; RT::Vec2i getMousePos(void) const;
float getFps(void) const;
void display(); void display();
void pollEvents(); void pollEvents();
@ -40,6 +40,8 @@ class Window
GLFWwindow *_window; GLFWwindow *_window;
RT::Vec2i _mousePos; RT::Vec2i _mousePos;
float _fps;
}; };
#endif #endif

5
shaders/frag.frag
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@ -51,7 +51,8 @@ void main()
vec2 uv; vec2 uv;
vec4 color; vec4 color;
uv = gl_FragCoord.xy / u_resolution.xy * 2.0 - 1.0; uv = gl_FragCoord.xy / u_resolution.xy;
uv = uv * 2.0 - 1.0;
uv.x *= u_resolution.x / u_resolution.y; uv.x *= u_resolution.x / u_resolution.y;
vec3 rayOrigin = vec3(0.0, 0.0, 0.0); vec3 rayOrigin = vec3(0.0, 0.0, 0.0);
@ -70,6 +71,6 @@ void main()
vec3 color = computeLighting(hitPoint, normal, viewDir); vec3 color = computeLighting(hitPoint, normal, viewDir);
FragColor = vec4(color, 1.0); FragColor = vec4(color, 1.0);
} else { } else {
FragColor = vec4(0.0, 0.0, 0.0, 1.0); FragColor = vec4(0., 0.0, 0.0, 1.0);
} }
} }

14
srcs/RT.cpp
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@ -14,14 +14,17 @@
int main(void) int main(void)
{ {
Window window(WIDTH, HEIGHT, "RT_GPU", 1); Window window(WIDTH, HEIGHT, "RT_GPU", 0);
Shader shader("shaders/vertex.vert", "shaders/frag.frag"); Shader shader("shaders/vertex.vert", "shaders/frag.frag");
shader.attach(); shader.attach();
RT::Vec2f vertices[6] = { // RT::Vec2f vertices[6] = {
{ -1.0f, -1.0f }, { 1.0f, -1.0f }, { -1.0f, 1.0f }, // { -1.0f, -1.0f }, { 1.0f, -1.0f }, { -1.0f, 1.0f },
{ 1.0f, -1.0f }, { 1.0f, 1.0f }, { -1.0f, 1.0f } // { 1.0f, -1.0f }, { 1.0f, 1.0f }, { -1.0f, 1.0f }
// };
RT::Vec2f vertices[3] = {
{-1.0f, -1.0f}, {3.0f, -1.0f}, {-1.0f, 3.0f}
}; };
size_t size = sizeof(vertices) / sizeof(RT::Vec2f) / 3; size_t size = sizeof(vertices) / sizeof(RT::Vec2f) / 3;
@ -32,10 +35,11 @@ int main(void)
glClear(GL_COLOR_BUFFER_BIT); glClear(GL_COLOR_BUFFER_BIT);
shader.setVec2f("u_resolution", RT::Vec2f(WIDTH, HEIGHT)); shader.setVec2f("u_resolution", RT::Vec2f(WIDTH, HEIGHT));
glUseProgram(shader.getProgram()); glUseProgram(shader.getProgram());
shader.drawTriangles(size); shader.drawTriangles(size);
std::cout << "\rFPS: " << int(window.getFps()) << " " << std::flush;
window.display(); window.display();
window.pollEvents(); window.pollEvents();
} }

13
srcs/Window.cpp
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@ -85,9 +85,15 @@ void Window::mouseButtonCallback(GLFWwindow* window, int button, int action, int
} }
} }
void Window::display() void Window::display()
{ {
static double lastTime = glfwGetTime();
double currentTime = glfwGetTime();
double delta = currentTime - lastTime;
lastTime = currentTime;
_fps = 1.0f / delta;
glfwSwapBuffers(_window); glfwSwapBuffers(_window);
} }
void Window::pollEvents() void Window::pollEvents()
@ -107,3 +113,8 @@ RT::Vec2i Window::getMousePos(void) const
{ {
return (_mousePos); return (_mousePos);
} }
float Window::getFps(void) const
{
return (_fps);
}