source: data/branches/altaudio/materials/scripts/hdr.material

// Downsample a 2x2 area & turn into luminence (unclamped)
fragment_program Ogre/Compositor/HDR/downscale2x2LuminenceHLSL_fp hlsl
{
        source hdr.hlsl
        entry_point downscale2x2Luminence
        target ps_2_0
}
fragment_program Ogre/Compositor/HDR/downscale2x2LuminenceGLSL_fp glsl
{
        source hdr_downscale2x2luminence.glsl
        default_params
        {
                param_named inRTT int 0
        }
}
fragment_program Ogre/Compositor/HDR/downscale2x2Luminence_fp unified
{
        delegate Ogre/Compositor/HDR/downscale2x2LuminenceGLSL_fp
        delegate Ogre/Compositor/HDR/downscale2x2LuminenceHLSL_fp
        default_params
        {
            param_named_auto texelSize inverse_texture_size 0
        }
}

material Ogre/Compositor/HDR/Downsample2x2Luminence
{
        technique
        {
                pass
                {
                        cull_hardware none
                        cull_software none
                        depth_check off

                        vertex_program_ref Ogre/Compositor/StdQuad_vp
                        {
                        }
                        fragment_program_ref Ogre/Compositor/HDR/downscale2x2Luminence_fp
                        {
                        }

                        texture_unit
                        {
                                tex_coord_set 0
                                tex_address_mode clamp
                                filtering none 
                        }
                }
        }
}

// Downsample a 3x3 area
fragment_program Ogre/Compositor/HDR/downscale3x3HLSL_fp hlsl
{
        source hdr.hlsl
        entry_point downscale3x3
        target ps_2_0
}
fragment_program Ogre/Compositor/HDR/downscale3x3GLSL_fp glsl
{
        source hdr_downscale3x3.glsl
        default_params
        {
                param_named inRTT int 0
        }
}
fragment_program Ogre/Compositor/HDR/downscale3x3_fp unified
{
        delegate Ogre/Compositor/HDR/downscale3x3GLSL_fp
        delegate Ogre/Compositor/HDR/downscale3x3HLSL_fp
        default_params
        {
            param_named_auto texelSize inverse_texture_size 0
        }
}


material Ogre/Compositor/HDR/Downsample3x3
{
        technique
        {
                pass
                {
                        cull_hardware none
                        cull_software none
                        depth_check off

                        vertex_program_ref Ogre/Compositor/StdQuad_vp
                        {
                        }
                        fragment_program_ref Ogre/Compositor/HDR/downscale3x3_fp
                        {
                        }

                        texture_unit
                        {
                                tex_coord_set 0
                                tex_address_mode clamp
                                filtering none 
                        }
                }
        }
}

// Downsample a 3x3 area and perform a brightness filter pass
fragment_program Ogre/Compositor/HDR/downscale3x3brightpassHLSL_fp hlsl
{
        source hdr.hlsl
        entry_point downscale3x3brightpass
        target ps_2_0
}
fragment_program Ogre/Compositor/HDR/utils_fp glsl
{
        source hdr_tonemap_util.glsl
}
fragment_program Ogre/Compositor/HDR/downscale3x3brightpassGLSL_fp glsl
{
        source hdr_downscale3x3brightpass.glsl
        // re-use common functions
        attach Ogre/Compositor/HDR/utils_fp
        default_params
        {
                param_named inRTT int 0
                param_named inLum int 1
        }
}
fragment_program Ogre/Compositor/HDR/downscale3x3brightpass_fp unified
{
        delegate Ogre/Compositor/HDR/downscale3x3brightpassGLSL_fp
        delegate Ogre/Compositor/HDR/downscale3x3brightpassHLSL_fp
        default_params
        {
            param_named_auto texelSize inverse_texture_size 0
        }
}


material Ogre/Compositor/HDR/Downsample3x3Brightpass
{
        technique
        {
                pass
                {
                        cull_hardware none
                        cull_software none
                        depth_check off

                        vertex_program_ref Ogre/Compositor/StdQuad_vp
                        {
                        }
                        fragment_program_ref Ogre/Compositor/HDR/downscale3x3brightpass_fp
                        {
                        }

                        // Scene 
                        texture_unit
                        {
                                tex_coord_set 0
                                tex_address_mode clamp
                                filtering none 
                        }
                        // Luminence 
                        texture_unit
                        {
                                tex_address_mode clamp
                                filtering none 
                        }
                }
        }
}

// Bloom an area using gaussian distribution
fragment_program Ogre/Compositor/HDR/bloomHLSL_fp hlsl
{
        source hdr.hlsl
        entry_point bloom
        target ps_2_0
}
fragment_program Ogre/Compositor/HDR/bloomGLSL_fp glsl
{
        source hdr_bloom.glsl
        default_params
        {
                param_named inRTT int 0
        }
}
fragment_program Ogre/Compositor/HDR/bloom_fp unified
{
        delegate Ogre/Compositor/HDR/bloomGLSL_fp
        delegate Ogre/Compositor/HDR/bloomHLSL_fp
}


material Ogre/Compositor/HDR/GaussianBloom
{
        technique
        {
                pass
                {
                        cull_hardware none
                        cull_software none
                        depth_check off

                        vertex_program_ref Ogre/Compositor/StdQuad_vp
                        {
                        }
                        fragment_program_ref Ogre/Compositor/HDR/bloom_fp
                        {
                        }

                        // Input 
                        texture_unit
                        {
                                tex_coord_set 0
                                tex_address_mode clamp
                                filtering none 
                        }
                }
        }
}


// Perform final tone mapping
fragment_program Ogre/Compositor/HDR/finaltonemappingHLSL_fp hlsl
{
        source hdr.hlsl
        entry_point finalToneMapping
        target ps_2_0
}
fragment_program Ogre/Compositor/HDR/finaltonemappingGLSL_fp glsl
{
        source hdr_finalToneMapping.glsl
        // re-use common functions
        attach Ogre/Compositor/HDR/utils_fp
        default_params
        {
                param_named inRTT int 0
                param_named inBloom int 1
                param_named inLum int 2
        }
}
fragment_program Ogre/Compositor/HDR/finaltonemapping_fp unified
{
        delegate Ogre/Compositor/HDR/finaltonemappingHLSL_fp
        delegate Ogre/Compositor/HDR/finaltonemappingGLSL_fp
}

material Ogre/Compositor/HDR/ToneMapping
{
        technique
        {
                pass
                {
                        cull_hardware none
                        cull_software none
                        depth_check off

                        vertex_program_ref Ogre/Compositor/StdQuad_vp
                        {
                        }
                        fragment_program_ref Ogre/Compositor/HDR/finaltonemapping_fp
                        {
                        }

                        // Scene 
                        texture_unit
                        {
                                tex_coord_set 0
                                tex_address_mode clamp
                        }
                        // Bloom
                        texture_unit
                        {
                                tex_address_mode clamp
                        }
                        // Luminence 
                        texture_unit
                        {
                                tex_address_mode clamp
                        }
                }
        }
}