old_shaders

<script id="3d-vertex-shader" type="x-shader/x-vertex">
attribute vec4 a_position;
attribute vec2 a_texcoord;

uniform mat4 u_matrix;
uniform vec3 u_lights[16];
uniform bool u_lights_enabled[16];

varying vec2 v_texcoord;
varying vec4 v_position;
varying vec4 light;
void main() {

	float lx = 0.0;
	float ly = 0.0;
	float lz = 0.0;
	
	float x = a_position.x;
	float y = a_position.y;
	float z = a_position.z;
	
	//float dist = sqrt((lx-x)*(lx-x) + (ly-y)*(ly-y) + (lz-z)*(lz-z));
	
	light = vec4(0.05, 0.05, 0.05, 1.0); //Ambient Light Level 
	
	for(int i=0; i < 16; i++){
		if(u_lights_enabled[i] == false){
			continue;	
		}
		lx = u_lights[i].x;
		ly = u_lights[i].y;
		lz = u_lights[i].z;
		
		float dist = sqrt((lx-x)*(lx-x) + (ly-y)*(ly-y) + (lz-z)*(lz-z));
	
		light+= vec4(1.0/(dist*dist),1.0/(dist*dist), 1.0/(dist*dist),1);
	
	}
	
	// Multiply the position by the matrix.
	gl_Position = u_matrix * a_position;
 
	// Pass the texcoord to the fragment shader.
	v_texcoord = a_texcoord;


	v_position = a_position;
}

</script>
<script id="3d-fragment-shader" type="x-shader/x-fragment">
precision mediump float;

// Passed in from the vertex shader.
varying vec2 v_texcoord;
varying vec4 v_position;
varying vec4 light;
// The texture.
uniform sampler2D u_texture;

 
void main() {
	gl_FragColor = texture2D(u_texture, v_texcoord) * light;
}

</script>