On 10-08-11 02:23 PM, Kenneth Graunke wrote:
On Wednesday 11 August 2010 10:13:13 Thomas Jones wrote:
This shader does
not compile with glsl2 and did with the old one
#version 110
void
main() {
gl_TexCoord[1] = gl_MultiTexCoord0*2-1;
gl_Position =
gl_Vertex;
}
The compiler gives the message:
0:5(38): error:
Could not implicitly convert operands to arithmetic
operator 0:5(40):
error: Operands to arithmetic operators must be numeric
If I change the
#version 110 to #version 120 it works
This is correct behavior. GLSL 1.10
explicitly forbids implicit conversions; they were added in 1.20. So you'll
either need to use version 1.20 or do gl_MultiTexCoord0 * 2.0 -
1.0.
--Kenneth
ah I see, the error message isn't terribly helpful for figuring out
what the real problem is... it should probably not say that they
must be numeric (since both operands are numbers...)
Also I think at least ATI's compiler accepted the shader (I don't
remember for sure if I've tested this version of it on a machine
with proprietary drivers or not) so if it actually does (and NVIDIA
too) it might be a problem...
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/mesa-dev
