1.RGB琛ㄧず鎴栬匒RGB琛ㄧず:
1)32浣嶇殑棰滆壊A,R,G,B鍒嗗埆鍗?浣?涓鍏?涓瓧鑺?32浣?,閭ｄ箞姣忎釜鍒嗛噺
鐨勫彇鍊艱寖鍥翠負0--255(鍗佽繘鍒?鎴栬?--ff(鍗佸叚榪涘埗)
2)24浣嶇殑棰滆壊,姣忎釜棰滆壊鍒嗛噺鐢?浣嶆潵琛ㄧず.
闂:璇村埌榪欓噷,鏈変漢灝變細闂?鏈夋病鏈夊叾浠栦綅鏁扮殑棰滆壊,鍏朵粬浣嶆暟鐨勯鑹叉瘡涓?br />鍒嗛噺鍒嗗埆鍗犲嚑浣嶅憿? 姣斿16浣嶇殑 姣斿8浣嶇殑?
浜?棰滆壊鐨勮綆?/p>
1)棰滆壊鍔犳硶:
涓ょ棰滆壊鐨勫悇涓垎閲忓垎鍒浉鍔?
姣斿棰滆壊C1(r1,g1,b1)鍜孋2(r2,g2,b2)
C3 = C1+C2 = (r1+r2,g1+g2,b1+b2)
鐒跺悗榪欐牱鐩稿姞姣忎釜鍒嗛噺鏈夊彲鑳戒細瓚呰繃鍒嗛噺鐨勫彇鍊艱寖鍥?鎵浠ュ湪鍋氬姞娉曠殑鏃跺?br />闇瑕佸姣忎釜鍒嗛噺榪涜澶勭悊,淇濊瘉鐩稿姞鍚庣殑鍒嗛噺鏄湪姝ｅ父鏁板間箣闂?
2)棰滆壊鐨勮皟鍒?br /> 棰滆壊*鏍囬噺,鍙互杈懼埌棰滆壊鍙樹寒鎴栬呭彉鏆楃殑鏁堟灉,姣斿:
C1*s = (s*r1,s*g1,*b1)
榪欓噷涔熻娉ㄦ剰鍚屼笂鐨勯棶棰?
棰滆壊*棰滆壊,渚嬪C1*C2 = (r1*r2,g1*g2,b1*b2)
榪欓噷涔熻娉ㄦ剰鍚屼笂鐨勯棶棰?
浣跨敤浠ヤ笂3縐嶉鑹茶繘琛屾販鍚堣綆楀彲浠ュ緱鍒板緢澶氭晥鏋?
3)alpha娣峰悎
鍦ˋRGB妯″紡鐨勯鑹蹭腑,A灝辨槸琛ㄧずalpha鍊? alpha鍊肩敤鏉ュ仛涓ょ棰滆壊
鐨勬販鍚堣綆?寰楀埌涓浜涙晥鏋?姣斿鍗婇忔槑鏁堟灉,涓嶉忔槑,鎴栬呭叏閫忔槑,絳夌瓑.
鍋氶忔槑鏁堟灉涓瀹氭槸2縐嶉鑹茶繘琛宎lpha娣峰悎榪愮畻寰楁潵鐨?
浠巃lpha娣峰悎鍏紡灝辮兘鐪嬪嚭鏉ワ細
鏈緇堝儚绱犻鑹插?= 婧愬儚绱犻鑹插鹼紙灝嗚緇樺埗鐨勶級*alpha+ 鐩殑鍍忕礌棰滆壊鍊?宸茬粡緇樺埗鐨?*(1-alpha)
榪欓噷鐨刟lpha鐨勫彇鍊艱寖鍥翠負0-1涔嬮棿銆?/p>
涓孌甸忔槑搴︾殑瀹炵幇渚嬪瓙錛?br />float R1 = 255;
float G1 = 0;
float B1 = 0;
float A1 = 0.3f;
float R2 = 255;
float G2 = 255;
float B2 = 255;
float A2 = 1;
//榪涜aphla娣峰悎
DWORD AphlaCorlorR = R1*A1+(1-A1)*(R2); R1鐨?0%棰滆壊 + R2鐨?0%鐨勯鑹詫紝寰楀嚭鏉ョ殑鏁堟灉鎯寵薄鍙煡R2鐨勯鑹叉垚鍒嗗浜涳紝榪欐牱R1鍜孯2鐨勯鑹茶繘琛屾瘮杈冪湅璧鋒潵 R1鐩稿R2鏉ヨ灝辨槸閫忔槑鐨勶紝浣嗕笉鏄崐閫忔槑
DWORD AphlaCorlorG = G1*A1+(1-A1)*(G2); 鍚屼笂
DWORD AphlaCorlorB = B1*A1+(1-A1)*(B2); 鍚屼笂
棰滆壊璁＄畻鐩稿叧鐭ヨ瘑鍙傜収<<3D緙栨垚澶у笀鎶宸?gt;>,絎?绔犺妭8.1.1棰滆壊妯″瀷鍜屾潗璐ㄣ?br />嬈㈣繋鍔犲叆QQ緹?:45811732
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