void DrawOpenGL(int choice)
{
Debug.Log($"DrawOpenGL({choice})");
/* Loop until the user closes the window */
{
switch (choice)
{
case 1:
GL.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
GL.glBegin(GL.GL_TRIANGLES);
// GL.glColor3f(r,g,b);
float rnd = 0.5f;
GL.glVertex2f(-rnd, -rnd);
GL.glVertex2f(0f, rnd);
GL.glVertex2f(rnd, -rnd);
GL.glEnd();
break;
case 2:
GL.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
//GL.glfwGetFramebufferSize(_windowHandle, &width, &height);
float ratio = width / (float)height;
// glViewport(0, 0, width, height);
GL.glMatrixMode(GL.GL_PROJECTION);
GL.glLoadIdentity();
GL.glOrtho(-ratio, ratio, -1f, 1f, 1f, -1f);
GL.glMatrixMode(GL.GL_MODELVIEW);
GL.glLoadIdentity();
GL.glRotatef((float)GL.glGetTime() * 50f, 0f, 0f, 1f);
GL.glBegin(GL.GL_TRIANGLES);
GL.glColor3f(1f, 0f, 0f);
GL.glVertex3f(-0.6f, -0.4f, 0f);
GL.glColor3f(0f, 1f, 0f);
GL.glVertex3f(0.6f, -0.4f, 0f);
GL.glColor3f(0f, 0f, 1f);
GL.glVertex3f(0f, 0.6f, 0f);
GL.glEnd();
break;
}
//GL.glFlush();
}
}
// Update is called once per frame
void Update()
{
if (Input.GetKey(KeyCode.D))
{
float r = Random.Range(0f, 1f);
float g = Random.Range(0f, 1f);
float b = Random.Range(0f, 1f);
OpenGLDriver.SwapBuffers(() => DrawOpenGL(1));
}
if (Input.GetKey(KeyCode.E))
{
OpenGLDriver.SwapBuffers(() => DrawOpenGL(2));
}
uint currentFrameBuffer = GL.GetCurrentFrameBuffer();
var texture = randomTexture2D(10, 10);
_rendererComponent.material.SetTexture("_EmissionMap", texture);
}
