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Draw Triangle with Modern OpenGL

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GuilhermeWerner
2021-01-08 19:13:53 -03:00
parent cacb232a42
commit de05960e4b
1 changed files with 15 additions and 5 deletions
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20
OpenGL/Source/Application.cpp
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@ -29,17 +29,27 @@ int main()
std::cout << glGetString(GL_VERSION) << std::endl;
float positions[6] = {
-0.5f, -0.5f,
0.0f, 0.5f,
0.5f, -0.5f
};
unsigned int buffer;
glGenBuffers(1, &buffer);
glBindBuffer(GL_ARRAY_BUFFER, buffer);
glBufferData(GL_ARRAY_BUFFER, 6 * sizeof(float), positions, GL_STATIC_DRAW);
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 2, 0);
/* Loop until the user closes the window */
while (!glfwWindowShouldClose(window))
{
/* Render here */
glClear(GL_COLOR_BUFFER_BIT);
glBegin(GL_TRIANGLES);
glVertex2f(-0.5f, -0.5f);
glVertex2f(0.0f, 0.5f);
glVertex2f(0.5f, -0.5f);
glEnd();
glDrawArrays(GL_TRIANGLES, 0, 3);
/* Swap front and back buffers */
glfwSwapBuffers(window);