Shaders rework.

1 files changed, 53 insertions, 0 deletions

diff --git a/client/shaders/liquids_shader/opengl_fragment.glsl b/client/shaders/liquids_shader/opengl_fragment.glsl
new file mode 100644
index 000000000..a5ffd71bb
--- /dev/null
+++ b/client/shaders/liquids_shader/opengl_fragment.glsl
@@ -0,0 +1,53 @@
+#version 120

+

+uniform sampler2D baseTexture;

+uniform sampler2D normalTexture;

+uniform sampler2D useNormalmap;

+

+uniform float enableBumpmapping;

+

+uniform vec4 skyBgColor;

+uniform float fogDistance;

+uniform vec3 eyePosition;

+

+varying vec3 vPosition;

+varying vec3 eyeVec;

+

+const float e = 2.718281828459;

+

+void main (void)

+{

+	float use_normalmap = texture2D(useNormalmap,vec2(1.0,1.0)).r;

+	float enable_bumpmapping = enableBumpmapping;

+

+	vec3 color;

+	vec2 uv = gl_TexCoord[0].st;

+

+	if ((enable_bumpmapping == 1.0) && (use_normalmap > 0.0)) {

+		vec3 base = texture2D(baseTexture, uv).rgb;

+		vec3 vVec = normalize(eyeVec);

+		vec3 bump = normalize(texture2D(normalTexture, uv).xyz * 2.0 - 1.0);

+		vec3 R = reflect(-vVec, bump);

+		vec3 lVec = normalize(vVec);

+		float diffuse = max(dot(vec3(-1.0, -0.4, 0.5), bump), 0.0);

+		float specular = pow(clamp(dot(R, lVec), 0.0, 1.0),1.0);

+		color = mix (base,diffuse*base,1.0) + 0.1 * specular * diffuse;

+	} else {

+		color = texture2D(baseTexture, uv).rgb;

+	}

+

+	float alpha = gl_Color.a;

+	vec4 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) / e;

+	col.g = 1.0 - exp(1.0 - col.g) / e;

+	col.b = 1.0 - exp(1.0 - col.b) / e;

+	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); 

+}