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# Fill the window with red, then green, then blue.
[require]
GL >= 3.1
GLSL >= 1.50
[vertex shader]
#version 150
in vec4 vertex;
void main() {
gl_Position = vertex;
}
[fragment shader]
#version 150
uniform vec4 u_color;
out vec4 color;
void main() {
color = u_color;
}
[vertex data]
vertex/float/2
-1.0 -1.0
1.0 -1.0
1.0 1.0
-1.0 1.0
[test]
uniform vec4 u_color 1.0 0.0 0.0 1.0
draw arrays GL_TRIANGLE_FAN 0 4
probe all rgba 1.0 0.0 0.0 1.0
uniform vec4 u_color 0.0 1.0 0.0 1.0
draw arrays GL_TRIANGLE_FAN 0 4
probe all rgba 0.0 1.0 0.0 1.0
uniform vec4 u_color 0.0 0.0 1.0 1.0
draw arrays GL_TRIANGLE_FAN 0 4
probe all rgba 0.0 0.0 1.0 1.0
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