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Lookat Matrix div0 fix

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Fazana
2021-08-19 11:05:42 +01:00
parent a22426a42b
commit b5c3433cf9
2 changed files with 6 additions and 5 deletions
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10
src/engine/math_util.c
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@@ -210,7 +210,7 @@ void mtxf_lookat(Mat4 mtx, Vec3f from, Vec3f to, s16 roll) {
dx = to[0] - from[0];
dz = to[2] - from[2];
invLength = -1.0 / sqrtf(dx * dx + dz * dz);
invLength = -1.0f / MAX(sqrtf(dx * dx + dz * dz), 0.00001f);
dx *= invLength;
dz *= invLength;
@@ -222,7 +222,7 @@ void mtxf_lookat(Mat4 mtx, Vec3f from, Vec3f to, s16 roll) {
yColZ = to[1] - from[1];
zColZ = to[2] - from[2];
invLength = -1.0 / sqrtf(xColZ * xColZ + yColZ * yColZ + zColZ * zColZ);
invLength = -1.0f / MAX(sqrtf(xColZ * xColZ + yColZ * yColZ + zColZ * zColZ), 0.00001f);
xColZ *= invLength;
yColZ *= invLength;
zColZ *= invLength;
@@ -231,7 +231,7 @@ void mtxf_lookat(Mat4 mtx, Vec3f from, Vec3f to, s16 roll) {
yColX = zColY * xColZ - xColY * zColZ;
zColX = xColY * yColZ - yColY * xColZ;
invLength = 1.0 / sqrtf(xColX * xColX + yColX * yColX + zColX * zColX);
invLength = 1.0f / MAX(sqrtf(xColX * xColX + yColX * yColX + zColX * zColX), 0.00001f);
xColX *= invLength;
yColX *= invLength;
@@ -241,7 +241,7 @@ void mtxf_lookat(Mat4 mtx, Vec3f from, Vec3f to, s16 roll) {
yColY = zColZ * xColX - xColZ * zColX;
zColY = xColZ * yColX - yColZ * xColX;
invLength = 1.0 / sqrtf(xColY * xColY + yColY * yColY + zColY * zColY);
invLength = 1.0f / MAX(sqrtf(xColY * xColY + yColY * yColY + zColY * zColY), 0.00001f);
xColY *= invLength;
yColY *= invLength;
zColY *= invLength;
@@ -575,7 +575,7 @@ void mtxf_mul_vec3s(Mat4 mtx, Vec3s b) {
void mtxf_to_mtx(Mtx *dest, Mat4 src) {
Mat4 temp;
register s32 i, j;
for( i = 0; i < 4; i++ ) {
for( j = 0; j < 3; j++ ) {
temp[i][j] = src[i][j] / WORLD_SCALE;