VertexAttribs with matrices

OpenGL
1

shader:

attribute mat3 matrix1;

mainprogram:

glVertexAttrib3f(location,1,0,0);
glVertexAttrib3f(location+1,0,1,0);
glVertexAttrib3f(location+2,0,0,1);

→ with this glVertexAttrib calls the behavior of the shader seems to be undefined. i don’t use the matrix.

a Bug??

if i pass any data in the way you have described it i get this image:

</img>

without the glVertexAttrib calls it looks like this:

</img>

but i don’t use this attribute in the shader.

2

Interesting that it’s the VertexAttrib calls that are at fault…

I’ve had problems specifying both matrix uniforms and matrix vertex attributes. I’d appreciate it if you’d file a bug to support mine :slight_smile:

3

bug report is submitted.

4

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