On 4 Apr 2012, at 15:56, Frederic Bouvier wrote:
> The shadow is rendered in the image in sunlight.frag so this is not the
> problem but the inputs are weird, so is the lighting.
>
> You disabled *all* shaders, right ?
Just made (and pushed) a Simgear tweak to identify the shader names :)
FRAGMENT glCompileShader
"/Users/Shared/FGFS/data/Shaders/deferred-gbuffer.frag" FAILED
FRAGMENT Shader "/Users/Shared/FGFS/data/Shaders/deferred-gbuffer.frag" infolog:
ERROR: 0:18: Left-hand-side of assignment must not be read-only
Which apparently is:
ecNormal = (2.0 * gl_Color.a - 1.0) * ecNormal;
Guessing that writing to a 'varying' might be the issue, I made a temporary:
vec3 normal2 = (2.0 * gl_Color.a - 1.0) * ecNormal;
gl_FragData[0] = vec4( (normal2.xy + vec2(1.0,1.0)) * 0.5, 0.0, 1.0 );
And now everything looks good! The intermediate buffers, the shadows, yes.
Regards,
James
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