<@include gpu/Config.slh@>
<$VERSION_HEADER$>
//  Generated on <$_SCRIBE_DATE$>
//
//  ssao_debugOcclusion.frag
//
//  Created by Sam Gateau on 1/1/16.
//  Copyright 2016 High Fidelity, Inc.
//
//  Distributed under the Apache License, Version 2.0.
//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//

<@include ssao.slh@>
<$declareAmbientOcclusion()$>
<$declareFetchDepthPyramidMap()$>
<$declareSamplingDisk()$>
<$declareEvalObscurance()$>

<$declarePackOcclusionDepth()$>

<@include gpu/Color.slh@>
<$declareColorWheel()$>

struct DebugParams{
    vec4 pixelInfo;
};

LAYOUT(binding=RENDER_UTILS_BUFFER_SSAO_DEBUG_PARAMS) uniform debugAmbientOcclusionBuffer {
    DebugParams debugParams;
};

vec2 getDebugCursorTexcoord(){
    return debugParams.pixelInfo.xy;
}

layout(location=0) out vec4 outFragColor;

void main(void) {
    // Stereo side info based on the real viewport size of this pass
    vec2 sideDepthSize = getDepthTextureSideSize(0);

    // Pixel Debugged
    vec2 cursorUV = getDebugCursorTexcoord();
    vec2 cursorPixelPos = cursorUV * sideDepthSize;

    ivec2 fragUVPos = ivec2(cursorPixelPos);

    // TODO
    outFragColor = packOcclusionOutput(0.0, 0.0, vec3(0.0, 0.0, 1.0));
}