Okay so I have a weird problem. I'm using Java, LWJGL, and GLSL.
Basically heres the problem.
This code gets me this result - http://inferno.codebrainshideout.net/Images/glslbug2.png
public class Triangle {
//Triangle coordinates
public Vertex a, b, c;
//Triangle normals
public Vertex i, j, k;
//Triangle texture coordiantes
public Vertex u, v, w;
//Triangle Material
public Material mat;
//Model that this triangle belongs too.
public Model model;
//// constructor and other methods here /////
public void draw() {
mat.glMaterialSet();
glVertexAttrib3f(glGetAttribLocation(GraphicsCore.program, "indices"), (float)a.weights[0].frame.index, 0, 0);
glBegin(GL_TRIANGLES);
glTexCoord3d(u.x, u.y, u.z);
glNormal3d(i.x, i.y, i.z);
glVertex3d(a.x, a.y, a.z);
glTexCoord3d(v.x, v.y, v.z);
glNormal3d(j.x, j.y, j.z);
glVertex3d(b.x, b.y, b.z);
glTexCoord3d(w.x, w.y, w.z);
glNormal3d(k.x, k.y, k.z);
glVertex3d(c.x, c.y, c.z);
glEnd();
}
}
But if I move glVertexAttrib3f() inside of the glBegin() I get this - http://inferno.codebrainshideout.net/Images/glslbug1.png
public class Triangle {
//Triangle coordinates
public Vertex a, b, c;
//Triangle normals
public Vertex i, j, k;
//Triangle texture coordiantes
public Vertex u, v, w;
//Triangle Material
public Material mat;
//Model that this triangle belongs too.
public Model model;
//// constructor and other methods here /////
public void draw() {
mat.glMaterialSet();
glBegin(GL_TRIANGLES);
glVertexAttrib3f(glGetAttribLocation(GraphicsCore.program, "indices"), (float)a.weights[0].frame.index, 0, 0);
glTexCoord3d(u.x, u.y, u.z);
glNormal3d(i.x, i.y, i.z);
glVertex3d(a.x, a.y, a.z);
glTexCoord3d(v.x, v.y, v.z);
glNormal3d(j.x, j.y, j.z);
glVertex3d(b.x, b.y, b.z);
glTexCoord3d(w.x, w.y, w.z);
glNormal3d(k.x, k.y, k.z);
glVertex3d(c.x, c.y, c.z);
glEnd();
}
}
What did I do wrong? I've seen people change attributes during there glBegin in examples. Why does it literally destroy my model when I do it?
This happens with any attribute I try to change, regardless of the data in it. Basically if I use glVertexAttrib() in any way inside of glBegin I get this problem.
I need to change the indices attribute for each vertex in the triangle, but I can't do that because any attributes I change inside of glBegin causes that to happen. What do?
