OpenGL 3.3 different colours with fragment shader [solved]
- by Andrew Seymour
I'm an OpenGL newbie. I'm trying to colour 3 circles but only 3 white circles are appearing. n is 3 in this example. Each vertice has 5 points, 2 for position and 3 for color
Here is where I think a problem may lie:
glEnableVertexAttribArray(0);
glBindBuffer(GL_ARRAY_BUFFER, vertexbuffer);
glVertexAttribPointer(
0,
2,
GL_FLOAT,
GL_FALSE,
5*sizeof(float),
(void*)0
);
glEnableVertexAttribArray(1);
glVertexAttribPointer(
1,
3,
GL_FLOAT,
GL_FALSE,
5*sizeof(float),
(void*)(2*sizeof(float))
);
glDrawElements(GL_TRIANGLES, 20 * 3 * n, GL_UNSIGNED_INT, 0);
glDisableVertexAttribArray(0);
glDisableVertexAttribArray(1);
My shaders:
#version 330 core
in vec3 Color;
out vec4 outColor;
void main()
{
outColor = vec4(Color, 1.0);
}
#version 330 core
layout(location = 0) in vec2 position;
layout(location = 1) in vec3 color
out vec3 Color
void main(){
gl_Position = vec4(position, 0.0, 1.0);
Color = color;
}
Thanks for taking a look
Andy
EDIT:
layout(location = 1) in vec3 color
out vec3 Color
layout(location = 1) in vec3 color;
out vec3 Color;
