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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Hoard renders thick white fog"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96903#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Hoard renders thick white fog"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96903">bug 96903</a>
from <span class="vcard"><a class="email" href="mailto:imirkin@alum.mit.edu" title="Ilia Mirkin <imirkin@alum.mit.edu>"> <span class="fn">Ilia Mirkin</span></a>
</span></b>
<pre>From the trace:
"""
16981 glCreateShader(type = GL_FRAGMENT_SHADER) = 12
16982 glShaderSource(shader = 12, count = 1, string = &"//!!FS
// ======================= Begin fragment shader program
===================================
uniform sampler2D Tex0;
uniform sampler2D Tex1;
vec2 encodeNormal(vec3 n)
{
float p = sqrt(n.z * 8.0 + 8.0);
return vec2(n.xy / p + 0.5);
}
vec2 encodeColor(vec3 rgb24)
{
rgb24 *= 255.0f;
// nvidia int3 rgb16 = rgb24 / int3(8,4,8);
ivec3 rgb16 = ivec3(rgb24) / ivec3(8,4,8);
float greenSplit = rgb16.g / 8.0f;
vec2 stuff;
stuff.x = rgb16.r * 8 + floor(greenSplit);
// nvidia stuff.y = frac(greenSplit) * 256 + rgb16.b;
stuff.y = fract(greenSplit) * 256 + rgb16.b;
stuff /= 255.0f;
return stuff;
}
void main(void)
{
vec4 tex0 = texture2D(Tex0,gl_TexCoord[0].st);
if(tex0.a < 0.5)
{
discard;
}
gl_FragColor = vec4(encodeColor(tex0.rgb *
gl_Color.rgb),encodeNormal(gl_TexCoord[2].xyz));
}
// ======================= End fragment shader program
===================================
", length = NULL)
16983 glCompileShader(shader = 12)
16984 glGetShaderiv(shader = 12, pname = GL_INFO_LOG_LENGTH, params = &580)
16985 glGetShaderInfoLog(shader = 12, bufSize = 581, length = NULL, infoLog =
"0:14(11): warning: Float suffixes are invalid in GLSL 1.10
0:17(31): warning: Float suffixes are invalid in GLSL 1.10
0:22(11): warning: Float suffixes are invalid in GLSL 1.10
0:17(21): error: could not implicitly convert operands to arithmetic operator
0:19(32): warning: `greenSplit' used uninitialized
0:19(12): error: could not implicitly convert operands to arithmetic operator
0:21(18): warning: `greenSplit' used uninitialized
0:21(12): error: could not implicitly convert operands to arithmetic operator
0:21(12): error: operands to arithmetic operators must be numeric
")
"""
I tried running it with force_glsl_version=130 -- that seems to help with
st/mesa, but it doesn't appear to be hooked up for i965 (??? it used to be! it
hought...)
I'm not sure when float <-> int autoconversion was added, maybe in 1.20? But it
also uses textureSize, which was only added in 1.30.</pre>
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