Hello, I am having a VERY strange problem with openGL recently.

To get to the point, I am trying to render objects with textures, and without textures. But for some reason, whenever I render an object with no texture, it ends up appearing black, even though I am using a pixel shader that outputs a red color, for example.

Psoudo code:

Bind Program...
Bind texture...
Bind Vertex Array...
Render textured object, done!

Bind texture(texture_2d, 0) // default texture

Bind Program...
Bind Vertex Array...
Render NON-Textured Object, da fek?? Why is it black!???

It seems like whenever I still use the last texture without setting it to 0, the shader uses one of the colors from the texture to color my non-textured object, even though the shader doesn't accept a texture for input... -.-

Here's a picture of what is happening:

These are what my color shaders look like:

        public string vertexColorShaderText = @"
#version 130

in vec3 in_Position;

out vec3 out_color;

uniform mat4 worldMatrix;
uniform mat4 viewMatrix;
uniform mat4 projectionMatrix;

void main(void)
{
    gl_Position = worldMatrix * vec4(in_Position, 1.0f);
	gl_Position = viewMatrix * gl_Position;
	gl_Position = projectionMatrix * gl_Position;
}";

        public string pixelColorShaderText = @"
#version 130

out vec4 last_color;

void main(void)
{
    vec4 derp_color;
    derp_color.r = 1.0;
    derp_color.g = 0.0;
    derp_color.b = 0.0;
    derp_color.a = 1.0;
    last_color = derp_color;
}";

I just don't understand. Is there something I am supposed to be doing here???

Update: I fixed the problem.

It had NOTHING to do with the bind texture. I had a parameter in my shader compiler that always loaded the texture pixel shader, making the color shader use the texture pixel shader.

*rages.