git-svn-id: svn://db.shs.com.ru/libs@659 a8b55f48-bf90-11e4-a774-851b48703e85

qglengine/shaders/ds_tonemap.glsl

@@ -8,6 +8,7 @@ void main(void) {
 // frag //
 
 uniform sampler2D tex_0, tex_sum;
+uniform float exposure;
 
 const vec3 luma = vec3(0.299, 0.587, 0.114);
 
@@ -17,7 +18,7 @@ void main(void) {
 	vec4 sum = texelFetch(tex_sum, ivec2(0,0), 0);
 	vec3 res = src.rgb;
 	float l = dot(res, luma);
-	float g = 2.2/dot(sum.rgb, luma);
+	float g = exposure / dot(sum.rgb, luma);
 	res /= l;
 	//res = log(res + vec3(2.)) - log(vec3(2.));
 	//res = pow(res,vec3(1/2.2));