shithub: qk1

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ref: d0340ee6ba7d1402a2e8786139fa3f59cd68c010
parent: 050589ae8afe1b26f684d2aa7bc41fc58e9c655d
author: Sigrid Solveig Haflínudóttir <[email protected]>
date: Thu Dec 28 18:10:01 EST 2023

treat alpha 0 ("default") as alpha 0xff when drawing

--- a/d_alpha.c
+++ b/d_alpha.c
@@ -5,6 +5,8 @@
 {
 	int a, b, c;
 
+	alpha = (ca >> 24)*alpha >> 8;
+
 	if(currententity != nil && currententity->effects & EF_ADDITIVE){
 		ca = R_BlendFog(ca, izi);
 		a = (alpha*((ca>> 0)&0xff) + 255*((cb>> 0)&0xff))>> 8;
--- a/protocol.h
+++ b/protocol.h
@@ -17,7 +17,7 @@
 	ZERO_ALPHA,
 };
 
-#define defalpha(a) ((a) == DEFAULT_ALPHA)
+#define defalpha(a) ((a) == DEFAULT_ALPHA || (a) == 0xff)
 #define zeroalpha(a) (!defalpha(a) && (a) <= ZERO_ALPHA)
 #define f2alpha(f) ((f) == 0.0 ? DEFAULT_ALPHA : clamp((f)*254+1, 1, 255))
 #define alpha2f(a) (zeroalpha(a) ? 0.0 : (float)(a)/255.0)
--- a/r_main.c
+++ b/r_main.c
@@ -472,6 +472,8 @@
 		return 1;
 	if((entdrawflags(e) ^ r_drawflags) != 0)
 		return 0;
+	if(e->alpha == DEFAULT_ALPHA)
+		e->alpha = 0xff;
 
 	currententity = e;
 	VectorCopy(modelorg, oldorigin);