mirror of
https://github.com/luanti-org/luanti.git
synced 2025-10-31 07:25:22 +01:00
47 lines
1.3 KiB
GLSL
47 lines
1.3 KiB
GLSL
|
|
uniform sampler2D myTexture;
|
|
uniform sampler2D normalTexture;
|
|
|
|
uniform vec4 skyBgColor;
|
|
uniform float fogDistance;
|
|
|
|
varying vec3 vPosition;
|
|
|
|
varying vec3 viewVec;
|
|
|
|
void main (void)
|
|
{
|
|
vec4 col = texture2D(myTexture, vec2(gl_TexCoord[0]));
|
|
float alpha = col.a;
|
|
vec2 uv = gl_TexCoord[0].st;
|
|
vec4 base = texture2D(myTexture, uv);
|
|
vec4 final_color = vec4(0.2, 0.2, 0.2, 1.0) * base;
|
|
vec3 vVec = normalize(viewVec);
|
|
vec3 bump = normalize(texture2D(normalTexture, uv).xyz * 2.0 - 1.0);
|
|
vec3 R = reflect(-vVec, bump);
|
|
vec3 lVec = normalize(vec3(0.0, -0.4, 0.5));
|
|
float diffuse = max(dot(lVec, bump), 0.0);
|
|
|
|
vec3 color = diffuse * texture2D(myTexture, gl_TexCoord[0].st).rgb;
|
|
|
|
|
|
float specular = pow(clamp(dot(R, lVec), 0.0, 1.0),1.0);
|
|
color += vec3(0.2*specular*diffuse);
|
|
|
|
|
|
col = vec4(color.r, color.g, color.b, alpha);
|
|
col *= gl_Color;
|
|
col = col * col; // SRGB -> Linear
|
|
col *= 1.8;
|
|
col.r = 1.0 - exp(1.0 - col.r) / exp(1.0);
|
|
col.g = 1.0 - exp(1.0 - col.g) / exp(1.0);
|
|
col.b = 1.0 - exp(1.0 - col.b) / exp(1.0);
|
|
col = sqrt(col); // Linear -> SRGB
|
|
if(fogDistance != 0.0){
|
|
float d = max(0.0, min(vPosition.z / fogDistance * 1.5 - 0.6, 1.0));
|
|
alpha = mix(alpha, 0.0, d);
|
|
}
|
|
|
|
gl_FragColor = vec4(col.r, col.g, col.b, alpha);
|
|
}
|