public void ResetColorTransform()
{
brightness = 1.0f;
contrast = 1.0f;
blackTolerance = 0;
whiteTolerance = 255;
paletteFirst = false;
if (output is null)
{
return;
}
Create(null, null, false);
output.Invalidate();
}
public void DrawPyramid()
{
Gl.glClear(Gl.GL_COLOR_BUFFER_BIT | Gl.GL_DEPTH_BUFFER_BIT);
Gl.glLoadIdentity();
float[] fogColor = new float[4] {
0.5f, 0.5f, 0.5f, 1.0f
};
Gl.glClearColor(0.5f, 0.5f, 0.5f, 1.0f);
Gl.glEnable(Gl.GL_COLOR_MATERIAL);
float[] matdiffu = new float[] { 1.0f, 1.0f, 1.0f, 1.0f };
Gl.glMaterialfv(Gl.GL_FRONT_AND_BACK, Gl.GL_DIFFUSE, matdiffu);
float[] light1_diffuse = new float[] { 1.0f, 1.0f, 1.0f, 0.0f };
float[] light1_position = new float[] { -1.0f, -1.0f, -1.0f, 1.0f };
float[] light2_position = new float[] { -1f, 1f, 0f, 1.0f };
// light
Gl.glEnable(Gl.GL_LIGHT1);
Gl.glEnable(Gl.GL_LIGHT0);
Gl.glLightfv(Gl.GL_LIGHT1, Gl.GL_DIFFUSE, light1_diffuse);
Gl.glLightfv(Gl.GL_LIGHT1, Gl.GL_POSITION, light1_position);
Gl.glLightfv(Gl.GL_LIGHT0, Gl.GL_DIFFUSE, light1_diffuse);
Gl.glLightfv(Gl.GL_LIGHT0, Gl.GL_POSITION, light2_position);
// textures
Gl.glEnable(Gl.GL_TEXTURE_2D);
Gl.glBindTexture(Gl.GL_TEXTURE_2D, mGlTextureObject);
Gl.glRotatef(angle, 0.0f, 0.5f, 0.5f);
Gl.glScalef(zoom, zoom, zoom);
Gl.glBegin(Gl.GL_TRIANGLES);
Gl.glTexCoord2f(0.0f, 0.0f);
Gl.glVertex3f(0.0f, 1f, 0.0f);
Gl.glTexCoord2f(0.5f, 1.0f);
Gl.glVertex3f(-1.0f, -1.0f, 1.0f);
Gl.glTexCoord2f(1.0f, 0.0f);
Gl.glVertex3f(1.0f, -1.0f, 1.0f);
Gl.glEnd();
Gl.glDisable(Gl.GL_TEXTURE_2D);
Gl.glBegin(Gl.GL_TRIANGLES);
Gl.glColor3f(0.3f, 1.0f, 0.5f);
// Gl.glTexCoord2f(0.0f, 0.0f);
Gl.glVertex3f(0.0f, 1.0f, 0.0f);
// Gl.glTexCoord2f(0.5f, 1.0f);
Gl.glVertex3f(-1.0f, -1.0f, 1.0f);
// Gl.glTexCoord2f(1.0f, 0.0f);
Gl.glVertex3f(0.0f, -1.0f, -1.0f);
Gl.glColor3f(0.0f, 0.0f, 1.0f);
Gl.glVertex3f(0.0f, 1.0f, 0.0f);
Gl.glVertex3f(0.0f, -1.0f, -1.0f);
Gl.glVertex3f(1.0f, -1.0f, 1.0f);
Gl.glColor3f(0.6f, 0.2f, 0.0f);
Gl.glVertex3f(-1.0f, -1.0f, 1.0f);
Gl.glVertex3f(0.0f, -1.0f, -1.0f);
Gl.glVertex3f(1.0f, -1.0f, 1.0f);
Gl.glEnd();
Gl.glPopMatrix();
Gl.glFlush();
OpenGLControl.Invalidate();
}