///////////////////////////////////////////////////////////////////////////////
//
//      ##  ######
//       ######  ###
//  ## ###############        Shark 3D Engine (www.shark3d.com)
//   ########## # # #
//    ########                Copyright (c) 1996-2006 Spinor GmbH.
//   ######### # # #          All rights reserved.
//  ##   ##########
//      ##
//
///////////////////////////////////////////////////////////////////////////////

// Definition of the shaders.
// A shader is an object responsible for drawing objects.

shader_array
{
    name "bloom"
    ident "eng_shader_std.group"
    param
    {
        env "shaderenv"
        init_method "init_method"
        child_array
        {
            ident "eng_shader_std.regionenter"
            param
            {
                env "shaderenv"
                usage "geo"
                insp_ident "showbound"
                insp_rank 80000
                insp_color 1.0 0.0 0.0
    
                enter_array
                {
                    triggers "main_trigger"
                    method "main_method"
                }
            }
        }
        {
            ident "eng_shader_std.bundle"
            param
            {
                env "shaderenv"
                methods "main_method"
                rank 35010
                new_method "bundle_method"
            }
        }
        {
            ident "eng_shader_std.redirect"
            param
            {
                env "shaderenv"
                register_methods "main_method"
                // negative value of 'close_rank'
                register_rank -35010
                close_methods "bundle_method"
                // define when EndRenderTex is called
                close_rank 90000
                // define when BeginRenderMain is called
                open_methods "bundle_method"
                open_rank 90030
                destprop_antialias 0
                dest_array
                {
                    from_var ""
                    to_var "screentex"
                    texprop_restrusage 0
                    texprop_depth 0
                    texprop_comp 4
                    texprop_float 0
                    samplermode_filter 0
                    samplermode_clamp 1
                }
            }
        }
        {
            // Reduce image size and get bright pixels.
            ident "eng_shader_special.filter"
            param
            {
                env "shaderenv"
                methods "bundle_method"
                rank 90010
    
                iter_start 0
                iter_end 0
                iter_step 0
                width_scale 0.5
                height_scale 0.5
                destprop_antialias 0

                passinfo_var "passinfo"
    
                src_array "screentex"
                dest_array
                {
                    from_var ""
                    to_var "brightsmooth"
                    texprop_restrusage 0
                    texprop_depth 0
                    texprop_comp 4
                    texprop_float 0
                    samplermode_filter 1
                    samplermode_clamp 1
                }
    
                shaderprog_ident "levelutil/shader/prog/"
                        & "bloom_bright.s3d_shaderprog_run"
                //shaderprog_ident "levelutil/shader/prog/"
                //      & "bloom_presmooth_bright.s3d_shaderprog_run"
                shaderprog_param_array
                {
                    src_var "passinfo"
                    dest_progvar "prog_passinfo"
                }
            }
        }
        {
            // Smooth (exponential averaging).
            ident "eng_shader_special.filter"
            param
            {
                env "shaderenv"
                methods "bundle_method"
                rank 90020
    
                iter_start 4
                iter_end 0
                iter_step -1
                width_scale 1.0
                height_scale 1.0
                destprop_antialias 0

                passinfo_var "passinfo"
    
                src_array "brightsmooth"
                dest_array
                {
                    from_var ""
                    to_var "brightsmooth"
                    texprop_restrusage 0
                    texprop_depth 0
                    texprop_comp 4
                    texprop_float 0
                    samplermode_filter 1
                    samplermode_clamp 1
                }
       
                shaderprog_ident "levelutil/shader/prog/"
                        & "bloom_smooth.s3d_shaderprog_run"
                shaderprog_param_array
                {
                    src_var "passinfo"
                    dest_progvar "prog_passinfo"
                }
            }
        }
        {
            ident "eng_shader_std.rectmesh"
            param
            {
                env "shaderenv"
                methods "bundle_method"

                mesh_var "rectmesh"
                attr_var "rectattr"
            }
        }
        {
            ident "eng_shader_std.paintmesh"
            param
            {
                env "shaderenv"
                methods "bundle_method"
                rank 90040
                
                cull_mode "back"
                depth_test "always"
                depth_write 0
    
                mesh_var "rectmesh"
                texchan_var_array "screentex" "brightsmooth"
                tex_attr_var_array "rectattr"
                attrmat_var_array ""
                
                use_vertex_point 1

                blend_col_src_fac "one"
                blend_col_dest_fac "zero"

                shaderprog_ident "levelutil/shader/prog/"
                        & "bloom_combine.s3d_shaderprog_run"
                shaderprog_param_array
                {
                    src_var "passinfo"
                    dest_progvar "prog_passinfo"
                }
            }
        }
    }
}
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