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unsuccessul so far to refactor glsl for macOS.

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This commit is contained in:
Michael James 2018-03-20 19:28:45 -06:00
parent ecba2d3094
commit 02750d5a25
1 changed files with 7 additions and 7 deletions
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14
cave/com.raytheon.uf.viz.truecolor.gl/localization/glsl/truecolor.glsl
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@ -29,7 +29,7 @@ int toBitMask(float alpha) {
}
float fromBitMask(int bitMask) {
return bitMask / maskMultiplier;
return float(bitMask) / maskMultiplier;
}
vec4 getFinalColor() {
@ -68,8 +68,6 @@ vec4 applyColorBand(int colorband) {
float cmapValue = dataToColorMapValue(dataValue, dataMappingDataValues, dataMappingColorValues, dataMappingValues);
float index = pow(getColorMappingIndex(cmapValue, colorMapping), gamma);
int currentMask = toBitMask(a);
int bitValue = (1 << band);
if (colorband == RED_BAND && index > r) {
r = index;
} else if (colorband == GREEN_BAND && index > g) {
@ -77,11 +75,13 @@ vec4 applyColorBand(int colorband) {
} else if (colorband == BLUE_BAND && index > b) {
b = index;
}
if ((currentMask & bitValue) == 0) {
// alpha does not contain this bit yet!
a = fromBitMask(currentMask | bitValue);
int bitValue = int(pow(2.0,float(band)));
int currentMask = toBitMask(a);
if ((currentMask - (bitValue * int(floor(float(currentMask/bitValue))))) == 0) {
a = fromBitMask(bitValue);
}
// a mod n = a - (n * Fix(a/n))
// currentMask & bitValue = currentMask - (bitValue * (currentMask/bitValue))
}
return vec4(r, g, b, a);