Float mixing

[dragonstd.git] / number.c

diff --git a/number.c b/number.c
index 678504209506eee9e8bd31a100bdb17ea7eae78b..e6eecd122f2531ef39b45b6d81de297c522aff63 100644 (file)
--- a/number.c
+++ b/number.c
@@ -144,7 +144,23 @@ DEFTYPES(64)
                } \
                return true; \
        } \
-       DEFVEC(type)
+       DEFVEC(type) \
+       type type ## _mix(type a, type b, type f) \
+       { \
+               return (1.0 - f) * a + b * f; \
+       } \
+       v2 ## type v2 ## type ## _mix(v2 ## type a, v2 ## type b, type f) \
+       { \
+               return (v2 ## type) {type ## _mix(a.x, b.x, f), type ## _mix(a.y, b.y, f)}; \
+       } \
+       v3 ## type v3 ## type ## _mix(v3 ## type a, v3 ## type b, type f) \
+       { \
+               return (v3 ## type) {type ## _mix(a.x, b.x, f), type ## _mix(a.y, b.y, f), type ## _mix(a.z, b.z, f)}; \
+       } \
+       v4 ## type v4 ## type ## _mix(v4 ## type a, v4 ## type b, type f) \
+       { \
+               return (v4 ## type) {type ## _mix(a.x, b.x, f), type ## _mix(a.y, b.y, f), type ## _mix(a.z, b.z, f), type ## _mix(a.w, b.w, f)}; \
+       }
 
 DEFFLOAT(f32)
 DEFFLOAT(f64)