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add notes for versor/quaternion type to describe memory layout

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Recep Aslantas
2020-02-20 17:29:32 +03:00
parent 349dc274f4
commit 5ee9bb88df
1 changed files with 6 additions and 1 deletions
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7
include/cglm/types.h
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@@ -36,10 +36,15 @@ typedef float vec2[2];
typedef float vec3[3];
typedef int ivec3[3];
typedef CGLM_ALIGN_IF(16) float vec4[4];
typedef vec4 versor;
typedef vec4 versor; /* |x, y, z, w| -> w is the last */
typedef vec3 mat3[3];
typedef CGLM_ALIGN_MAT vec4 mat4[4];
/*
Important: cglm stores quaternion as [x, y, z, w] in memory since v0.4.0
it was [w, x, y, z] before v0.4.0 ( v0.3.5 and earlier ). w is real part.
*/
#define GLM_E 2.71828182845904523536028747135266250 /* e */
#define GLM_LOG2E 1.44269504088896340735992468100189214 /* log2(e) */
#define GLM_LOG10E 0.434294481903251827651128918916605082 /* log10(e) */