lygia/space/flipY)Flip Y axis
Use:
<vec2|vec3|vec4> flipY(<vec2|vec3|vec4> st)
#ifndef FNC_FLIPY
#define FNC_FLIPY
vec2 flipY(in vec2 v) { return vec2(v.x, 1. - v.y); }
vec3 flipY(in vec3 v) { return vec3(v.x, 1. - v.y, v.z); }
vec4 flipY(in vec4 v) { return vec4(v.x, 1. - v.y, v.z, v.w); }
#endif
Use:
<float2|float3|float4> flipY(<float2|float3|float4> st)
#ifndef FNC_FLIPY
#define FNC_FLIPY
float2 flipY(in float2 st) { return float2(st.x, 1. - st.y);}
float3 flipY(in float3 st) { return float3(st.x, 1. - st.y, st.z);}
float4 flipY(in float4 st) { return float4(st.x, 1. - st.y, st.z, st.w);}
#endif
Use:
<float2|float3|float4> flipY(<float2|float3|float4> st)
#ifndef FNC_FLIPY
#define FNC_FLIPY
float2 flipY(float2 v) { return float2(v.x, 1. - v.y); }
float3 flipY(float3 v) { return float3(v.x, 1. - v.y, v.z); }
float4 flipY(float4 v) { return float4(v.x, 1. - v.y, v.z, v.w); }
#endif
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