shader3/res/shader/depthrender.fs

varying vec2 V_Texcoord;

uniform sampler2D U_MainTexture;

void main()
{
	float depthValue=texture2D(U_MainTexture,V_Texcoord).r;
	depthValue = pow(depthValue, 32);
	gl_FragColor=vec4(vec3(depthValue),1.0);
}