20 lines
		
	
	
		
			304 B
		
	
	
	
		
			GLSL
		
	
	
	
	
	
			
		
		
	
	
			20 lines
		
	
	
		
			304 B
		
	
	
	
		
			GLSL
		
	
	
	
	
	
| #version 140
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| in vec2 tex_coord;
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| 
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| void main (void)
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| {
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|     vec4 white = vec4(1.0);
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|     vec4 black = vec4(0.2);
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|     vec4 color = white;
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| 
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|     // First, cut out our circle
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|     float x = tex_coord.x*2.0 - 1.0;
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|     float y = tex_coord.y*2.0 - 1.0;
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| 
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|     discard;
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| 
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| 
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|     gl_FragColor = color;
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| 
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| }
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