Hi,
I must have been staying too long in front of my computer lately...
The following code works fine:
Code:
// GLSL
out vec4 out_color;
void main(void)
{
gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
out_color = gl_Color;
}
// Trivial fragment shader code omitted here for clarity
The following code also works fine:
Code:
// C++
setUseModelViewAndProjectionUniforms(true);
setUseVertexAttributeAliasing(true);
// GLSL
uniform mat4 osg_ModelViewProjectionMatrix;
in vec4 osg_Vertex;
in vec4 osg_Color;
out vec4 out_color;
void main(void)
{
gl_Position = osg_ModelViewProjectionMatrix * osg_Vertex;
out_color = osg_Color;
}
The following code does not work. Nothing is displayed on my screen:
Code:
// C++
setUseModelViewAndProjectionUniforms(true);
// GLSL
uniform mat4 osg_ModelViewProjectionMatrix;
out vec4 out_color;
void main(void)
{
gl_Position = osg_ModelViewProjectionMatrix * gl_Vertex;
out_color = gl_Color;
}
Why? Is there a difference between gl_Vertex/osg_Vertex and
gl_ModelViewProjectionMatrix/osg_ModelViewProjectionMatrix?
Cheers,
Fred
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=38455#38455
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