DepthFillPass.h

#pragma once

#include "OpenGLShaderPass.h"
#include "glprogram/GLSLDepthFillAlphaProgram.h"

namespace render
{

class OpenGLRenderSystem;

/**
 * Special render pass filling the depth buffer. 
 * This is the first pass before any interaction shaders are run.
 */
class DepthFillPass :
    public OpenGLShaderPass
{
public:
    DepthFillPass(OpenGLShader& owner, OpenGLRenderSystem& renderSystem);

    GLSLDepthFillAlphaProgram& getDepthFillProgram()
    {
        return *static_cast<GLSLDepthFillAlphaProgram*>(_glState.glProgram);
    }

protected:
    virtual void activateShaderProgram(OpenGLState& current) override;
};

}