changed hex to rgb into hex to rgba

This commit is contained in:
suhrke 2017-07-06 17:30:21 -07:00
parent 821d6001bf
commit 5eb5511bda
2 changed files with 17 additions and 8 deletions

View File

@ -639,7 +639,8 @@ EntityConverter::convertPointLight(const std::vector<std::string> &lines) const
float green;
float blue;
// Convert 32bit hex value into RGB values
hexToRGB(color, red, green, blue);
float backgroundColor = 0.5; //!! Just a guess
hexToRGB(color, backgroundColor, red, green, blue);
colorStream << "\"_color\" \"" << red << " " << green << " " << blue << "\"" << std::endl;
convertedLines.push_back (colorStream.str() );
}
@ -740,17 +741,24 @@ EntityConverter::offset(const std::string &value, const float amount) const
void
EntityConverter::hexToRGB(const std::string &hex, float &r, float &g, float &b) const
EntityConverter::hexToRGB(const std::string &hex, float background, float &r, float &g, float &b) const
{
unsigned int value;
std::stringstream ss;
ss << std::hex << hex;
ss >> value;
// get the necessary components from the top 3 bytes
r = ((value >> 16) & 0xFF) / 255.0;
g = ((value >> 8) & 0xFF) / 255.0;
b = ((value) & 0xFF) / 255.0;
// BYTE ORDER IS ARGB
// Get each value and normalize
float sourceAlpha = ((value >> 24) & 0xFF) / 255.0;
float sourceRed = ((value >> 16) & 0xFF) / 255.0;
float sourceGreen = ((value >> 8) & 0xFF) / 255.0;
float sourceBlue = ((value) & 0xFF) / 255.0;
// Convert RGB value close to something close to the source RGBA value
r = ((1 - sourceAlpha) * background) + (sourceAlpha * sourceRed);
g = ((1 - sourceAlpha) * background) + (sourceAlpha * sourceGreen);
b = ((1 - sourceAlpha) * background) + (sourceAlpha * sourceBlue);
}

View File

@ -199,13 +199,14 @@ class EntityConverter
* Class: EntityConverter
* Method: EntityConverter :: hexToRGB
* Description: Convert 8 digit hex value into separate red, green, and blue values
* Parameter: string hex, inputted hex value
* Parameter: string hex, inputted hex RGBA value (leftmost byte is alpha, then RGB)
* Parameter: float background, background color
* Parameter: float r, RETURN BY REFERENCE: converted red value
* Parameter: float g, RETURN BY REFERENCE: converted green value
* Parameter: float b, RETURN BY REFERENCE: converted blue value
*--------------------------------------------------------------------------------------
*/
void hexToRGB(const std::string &hex, float &r, float &g, float &b) const;
void hexToRGB(const std::string &hex, const float background, float &r, float &g, float &b) const;
/*
*--------------------------------------------------------------------------------------
* Class: EntityConverter