Draw Screen Quad

MyDualFramebufferView.cpp

void MyDualFramebufferView::RenderToMainscreen(IDrawable& drawable)
{
// switch back to main
	glClearColor(1, 0, 0, 1.0f);
	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

	// trigger mipmaps generation explicitly
	glBindTexture(GL_TEXTURE_2D, _fboTextureID);
	glGenerateMipmap(GL_TEXTURE_2D);
	glBindTexture(GL_TEXTURE_2D, 0);

	glActiveTexture ( GL_TEXTURE0 );
	glUniform1i ( _basicArgs.Uniforms[UNIFORM_BASIC_SAMPLER0], 0 );

	glVertexAttribPointer (ATTRIBUTE_BASIC_POSITION, 3, GL_FLOAT, GL_FALSE, 5 * sizeof(GLfloat), _screenQuadVertices );
	glVertexAttribPointer (ATTRIBUTE_BASIC_TEX_COORD, 2, GL_FLOAT, GL_FALSE, 5 * sizeof(GLfloat), &_screenQuadVertices[3] );
	glEnableVertexAttribArray (ATTRIBUTE_BASIC_POSITION);
	glEnableVertexAttribArray (ATTRIBUTE_BASIC_TEX_COORD);

	glBindTexture(GL_TEXTURE_2D, _fboTextureID);

	glDrawElements ( GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, _screenQuadIndices );

	glBindTexture(GL_TEXTURE_2D, 0);
}