つぶやきGLSL理解したい2

https://gyazo.com/d51a385cbd95bb9fa82ae8f1fd3b60b9

rotate3D

code::

mat3 rotate3D(float angle, vec3 axis){

vec3 a = normalize(axis);

float s = sin(angle);

float c = cos(angle);

float r = 1.0 - c;

return mat3(

a.x * a.x * r + c,

a.y * a.x * r + a.z * s,

a.z * a.x * r - a.y * s,

a.x * a.y * r - a.z * s,

a.y * a.y * r + c,

a.z * a.y * r + a.x * s,

a.x * a.z * r + a.y * s,

a.y * a.z * r - a.x * s,

a.z * a.z * r + c

);

}

code::

out vec4 o;

code::

ERROR: 0:31: 'out' : storage qualifier supported in GLSL ES 3.00 and above only

ERROR: 0:31: 'out' : Local variables can only use the const storage qualifier.

ERROR: 0:31: 'out' : invalid qualifier combination

code::

for(o++;i++<1e2;g+=max(.05,e*.3)){

code::

ERROR: 0:38: 'for' : Invalid init declaration

In a for loop, the variable must be declared in the loop header itself, not outside:

うーん、環境が違うのかな。保留。

こちらは動く環境へのリンク付き