private void drawBackgroundTexture()
{
if (_useBackgroundTexture && _backgroundTexture != null)
{
Depth.disableTest();
Depth.setMask(false);
Blend.equation(BlendEquationMode.FuncAdd);
Blend.funcSeparate(BlendingFactorSrc.OneMinusDstAlpha, BlendingFactorDest.DstAlpha, BlendingFactorSrc.Zero, BlendingFactorDest.Zero);
Blend.enable();
{
_backgroundTexture.drawB();
}
Blend.disable();
Depth.enableTest();
Depth.setMask(true);
}
}
public override void draw(bool useTexture)
{
_fbo_color.bind();
Depth.clear();
Buffer.draw(DrawBufferMode.ColorAttachment0);
Buffer.clear(0, 0, 0, 0);
_rendering.use();
{
Texture.active(TextureUnit.Texture0); _tex_blend.bind();
Texture.active(TextureUnit.Texture1); _tex_back.bind();
Texture.image.draw();
}
Shading.close();
FrameBuffer.unbind();
Buffer.draw(DrawBufferMode.Back);
Depth.clear();
Buffer.clear(0, 0, 0, 0);
_tex_color.draw();
}
public override void compute(Texture tex_color)
{
_fbo_blend.bind();
Buffer.draw(DrawBufferMode.ColorAttachment0);
Depth.disableTest();
Depth.setMask(false);
Blend.enable();
Blend.funcSeparate(BlendingFactorSrc.DstAlpha, BlendingFactorDest.One, BlendingFactorSrc.Zero, BlendingFactorDest.OneMinusSrcAlpha);
Blend.equation(BlendEquationMode.FuncAdd);
{
Texture.rendering.use();
{
Texture.active(TextureUnit.Texture0); tex_color.bind();
Texture.image.draw();
}
Shading.close();
}
Blend.disable();
Depth.enableTest();
Depth.setMask(true);
}