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fix wrong alpha after negative float to byte conversion in RenderableCamWorkzone

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Garux 2019-04-24 01:08:51 +03:00
parent 57865138b9
commit b9a43074f0
1 changed files with 2 additions and 2 deletions
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4
radiant/camwindow.cpp
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@ -856,13 +856,13 @@ void render( RenderStateFlags state ) const {
for( ; count < approx_count - 4; count += 4 ){ for( ; count < approx_count - 4; count += 4 ){
verticesarr[count][i] = verticesarr[count][i] =
verticesarr[count + 1][i] = coord; verticesarr[count + 1][i] = coord;
const float alpha = std::min( 1.f, static_cast<float>( ( offset + bounds.extents[i] - fabs( coord - bounds.origin[i] ) ) / offset ) ); const float alpha = std::max( 0.f, std::min( 1.f, ( offset + bounds.extents[i] - std::fabs( coord - bounds.origin[i] ) ) / offset ) );
colorarr0[count] = colorarr0[count + 1] = Colour4b( 255, 0, 0, alpha * 255 ); colorarr0[count] = colorarr0[count + 1] = Colour4b( 255, 0, 0, alpha * 255 );
colorarr1[count] = colorarr1[count + 1] = Colour4b( 255, 255, 255, alpha * 255 ); colorarr1[count] = colorarr1[count + 1] = Colour4b( 255, 255, 255, alpha * 255 );
coord += grid; coord += grid;
verticesarr[count + 2][i] = verticesarr[count + 2][i] =
verticesarr[count + 3][i] = coord; verticesarr[count + 3][i] = coord;
const float alpha2 = std::min( 1.f, static_cast<float>( ( offset + bounds.extents[i] - fabs( coord - bounds.origin[i] ) ) / offset ) ); const float alpha2 = std::max( 0.f, std::min( 1.f, ( offset + bounds.extents[i] - std::fabs( coord - bounds.origin[i] ) ) / offset ) );
colorarr0[count + 2] = colorarr0[count + 3] = Colour4b( 255, 0, 0, alpha2 * 255 ); colorarr0[count + 2] = colorarr0[count + 3] = Colour4b( 255, 0, 0, alpha2 * 255 );
colorarr1[count + 2] = colorarr1[count + 3] = Colour4b( 255, 255, 255, alpha2 * 255 ); colorarr1[count + 2] = colorarr1[count + 3] = Colour4b( 255, 255, 255, alpha2 * 255 );
coord += grid; coord += grid;