diff options
Diffstat (limited to 'client/shaders/leaves_shader/opengl_fragment.glsl')
-rw-r--r-- | client/shaders/leaves_shader/opengl_fragment.glsl | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/client/shaders/leaves_shader/opengl_fragment.glsl b/client/shaders/leaves_shader/opengl_fragment.glsl deleted file mode 100644 index 1db798070..000000000 --- a/client/shaders/leaves_shader/opengl_fragment.glsl +++ /dev/null @@ -1,100 +0,0 @@ -uniform sampler2D baseTexture; -uniform sampler2D normalTexture; -uniform sampler2D useNormalmap; - -uniform vec4 skyBgColor; -uniform float fogDistance; -uniform vec3 eyePosition; - -varying vec3 vPosition; -varying vec3 worldPosition; - -varying vec3 eyeVec; -varying vec3 lightVec; - -bool normalTexturePresent = false; - -const float e = 2.718281828459; - -float intensity (vec3 color){ - return (color.r + color.g + color.b) / 3.0; -} - -float get_rgb_height (vec2 uv){ - return intensity(texture2D(baseTexture,uv).rgb); -} - -vec4 get_normal_map(vec2 uv){ - vec4 bump = texture2D(normalTexture, uv).rgba; - bump.xyz = normalize(bump.xyz * 2.0 -1.0); - bump.y = -bump.y; - return bump; -} - -void main (void) -{ - vec3 color; - vec4 bump; - vec2 uv = gl_TexCoord[0].st; - bool use_normalmap = false; - -#ifdef USE_NORMALMAPS - if (texture2D(useNormalmap,vec2(1.0,1.0)).r > 0.0){ - normalTexturePresent = true; - } -#endif - -#ifdef USE_NORMALMAPS - if (normalTexturePresent){ - bump = get_normal_map(uv); - use_normalmap = true; - } -#endif - -#ifdef GENERATE_NORMALMAPS - if (use_normalmap == false){ - float tl = get_rgb_height (vec2(uv.x-SAMPLE_STEP,uv.y+SAMPLE_STEP)); - float t = get_rgb_height (vec2(uv.x-SAMPLE_STEP,uv.y-SAMPLE_STEP)); - float tr = get_rgb_height (vec2(uv.x+SAMPLE_STEP,uv.y+SAMPLE_STEP)); - float r = get_rgb_height (vec2(uv.x+SAMPLE_STEP,uv.y)); - float br = get_rgb_height (vec2(uv.x+SAMPLE_STEP,uv.y-SAMPLE_STEP)); - float b = get_rgb_height (vec2(uv.x,uv.y-SAMPLE_STEP)); - float bl = get_rgb_height (vec2(uv.x-SAMPLE_STEP,uv.y-SAMPLE_STEP)); - float l = get_rgb_height (vec2(uv.x-SAMPLE_STEP,uv.y)); - float dX = (tr + 2.0 * r + br) - (tl + 2.0 * l + bl); - float dY = (bl + 2.0 * b + br) - (tl + 2.0 * t + tr); - bump = vec4 (normalize(vec3 (dX, -dY, NORMALMAPS_STRENGTH)),1.0); - use_normalmap = true; - } -#endif - -vec4 base = texture2D(baseTexture, uv).rgba; - -#ifdef ENABLE_BUMPMAPPING - if (use_normalmap){ - vec3 L = normalize(lightVec); - vec3 E = normalize(eyeVec); - float specular = pow(clamp(dot(reflect(L, bump.xyz), E), 0.0, 1.0),0.5); - float diffuse = dot(E,bump.xyz); - color = 0.05*base.rgb + diffuse*base.rgb + 0.2*specular*base.rgb; - } else { - color = base.rgb; - } -#else - color = base.rgb; -#endif - - vec4 col = vec4(color.rgb, base.a); - 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 - col *= gl_Color; - if(fogDistance != 0.0){ - float d = max(0.0, min(vPosition.z / fogDistance * 1.5 - 0.6, 1.0)); - col = mix(col, skyBgColor, d); - } - gl_FragColor = vec4(col.rgb, base.a); -} |