godotengine/godot
1
0
Fork 0
mirror of https://github.com/godotengine/godot.git synced 2025-11-11 13:10:58 +00:00
Code Releases Wiki Activity

Several fixes to make GLES2 on HTML5 work much better.

Browse Source 
Changed math class error reporting to be a bit less paranoid.
This commit is contained in:
Juan Linietsky
2019-02-25 21:46:24 -03:00
parent 51c1d55cf9
commit a32b26dfa2
16 changed files with 315 additions and 100 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
core/math/math_funcs.h
View File

@@ -249,13 +249,25 @@ public:
static float random(float from, float to);
static real_t random(int from, int to) { return (real_t)random((real_t)from, (real_t)to); }
static _ALWAYS_INLINE_ bool is_equal_approx(real_t a, real_t b) {
static _ALWAYS_INLINE_ bool is_equal_approx_ratio(real_t a, real_t b, real_t epsilon = CMP_EPSILON) {
// this is an approximate way to check that numbers are close, as a ratio of their average size
// helps compare approximate numbers that may be very big or very small
real_t diff = abs(a - b);
if (diff == 0.0) {
return true;
}
real_t avg_size = (abs(a) + abs(b)) / 2.0;
diff /= avg_size;
return diff < epsilon;
}
static _ALWAYS_INLINE_ bool is_equal_approx(real_t a, real_t b, real_t epsilon = CMP_EPSILON) {
// TODO: Comparing floats for approximate-equality is non-trivial.
// Using epsilon should cover the typical cases in Godot (where a == b is used to compare two reals), such as matrix and vector comparison operators.
// A proper implementation in terms of ULPs should eventually replace the contents of this function.
// See https://randomascii.wordpress.com/2012/02/25/comparing-floating-point-numbers-2012-edition/ for details.
return abs(a - b) < CMP_EPSILON;
return abs(a - b) < epsilon;
}
static _ALWAYS_INLINE_ float absf(float g) {