[osg-users] geometry shader with opengles

[lin hui]

Hi,

I want to know if osg support geometry shader with opengles3.2?I have changed the profile to GLES3.I'm now testing on IOS.
I have info like this:
GEOMETRY glCompileShader "" FAILED
GEOMETRY Shader "" infolog:
ERROR: 0:15: 'layout' : syntax error: syntax error

and this is my code:

#version 300 es

precision highp float;
precision highp int;

uniform mat4 osg_ModelViewMatrix;
uniform mat4 osg_ViewMatrix;
uniform mat4 osg_ProjectionMatrix; 
uniform mat4 osg_ViewMatrixInverse;
uniform float TubeRadius;
uniform int EdgeCount;
uniform vec3 DirLightDir_V3;


layout(points) in;

layout(triangle_strip, max_vertices = 4) out;

out vec2 gf_uv;

void main()
{
    vec4 offset0 = vec4(0,0,0,0);
    vec4 offset1 = vec4(1,0,0,0);
    vec4 offset2 = vec4(1,1,0,0);
    vec4 offset3 = vec4(0,1,0,0);
    gl_Position = osg_ProjectionMatrix * (gl_in[0].gl_Position + offset0);
    gf_uv = offset0.xy;
    EmitVertex();
    
    gl_Position = osg_ProjectionMatrix * (gl_in[0].gl_Position + offset1);
    gf_uv = offset1.xy;

    EmitVertex();    
    
    gl_Position = osg_ProjectionMatrix * (gl_in[0].gl_Position + offset3);
    gf_uv = offset3.xy;
    
    EmitVertex();
    
    gl_Position = osg_ProjectionMatrix * (gl_in[0].gl_Position + offset2);
    gf_uv = offset2.xy;
    
    EmitVertex();
    EndPrimitive();
}

Any help is welcome！

Thank you!

Cheers,
lin

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http://forum.openscenegraph.org/viewtopic.php?p=73219#73219