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[opencl] Global transparency

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This commit is contained in:
Alessandro Pasotti 2018-07-05 10:48:34 +02:00
parent 5129dcf03c
commit 3161b9407d
1 changed files with 6 additions and 3 deletions
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9
resources/opencl_programs/hillshade.cl
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@ -6,7 +6,7 @@ __kernel void processNineCellWindow( __global float *scanLine1,
__global float *scanLine3,
__global uchar4 *resultLine, // This is an image BGRA !
__global float *rasterParams // [ mInputNodataValue, mOutputNodataValue, mZFactor, mCellSizeX, mCellSizeY,
// azimuthRad, cosZenithRad, sinZenithRad ]
// azimuthRad, cosZenithRad, sinZenithRad, mOpacity ]
) {
@ -31,7 +31,7 @@ __kernel void processNineCellWindow( __global float *scanLine1,
float res;
if ( derX == rasterParams[1] || derY == rasterParams[1] )
{
res = rasterParams[1];
res = 255.0f;
}
else
{
@ -49,6 +49,9 @@ __kernel void processNineCellWindow( __global float *scanLine1,
}
resultLine[i] = (uchar4)(res, res, res, 255);
// Opacity
res = res * rasterParams[7];
resultLine[i] = (uchar4)(res, res, res, 255 * rasterParams[7]);
}