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/* The ARB_shading_language_420pack spec says:
*
* "The length method may be applied to matrices. The result is the number
* of columns of the matrix. For example,
*
* mat3x4 v;
* const int L = v.length();
*
* sets the constant L to 3. The type returned by .length() on a matrix
* is *int*."
*
* Verify that mat.length() returns the number of columns and that the type is
* int.
*/
[require]
GLSL >= 1.30
GL_ARB_shading_language_420pack
[vertex shader passthrough]
[fragment shader]
#extension GL_ARB_shading_language_420pack: enable
out vec4 frag_color;
void main() {
mat2x2 m2x2;
mat2x3 m2x3;
mat2x4 m2x4;
mat3x2 m3x2;
mat3x3 m3x3;
mat3x4 m3x4;
mat4x2 m4x2;
mat4x3 m4x3;
mat4x4 m4x4;
frag_color = vec4(0.0, 1.0, 0.0, 1.0);
if (m2x2.length() != 2 ||
m2x3.length() != 2 ||
m2x4.length() != 2 ||
m3x2.length() != 3 ||
m3x3.length() != 3 ||
m3x4.length() != 3 ||
m4x2.length() != 4 ||
m4x3.length() != 4 ||
m4x4.length() != 4) {
frag_color = vec4(1.0, 0.0, 0.0, 1.0);
}
}
[test]
draw rect -1 -1 2 2
probe all rgba 0.0 1.0 0.0 1.0
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