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-rw-r--r--client/shaders/water_surface_shader/opengl_fragment.glsl176
-rw-r--r--client/shaders/water_surface_shader/opengl_vertex.glsl137
2 files changed, 0 insertions, 313 deletions
diff --git a/client/shaders/water_surface_shader/opengl_fragment.glsl b/client/shaders/water_surface_shader/opengl_fragment.glsl
deleted file mode 100644
index 19f6ac80f..000000000
--- a/client/shaders/water_surface_shader/opengl_fragment.glsl
+++ /dev/null
@@ -1,176 +0,0 @@
-uniform sampler2D baseTexture;
-uniform sampler2D normalTexture;
-uniform sampler2D textureFlags;
-
-uniform vec4 skyBgColor;
-uniform float fogDistance;
-uniform vec3 eyePosition;
-
-varying vec3 vPosition;
-varying vec3 worldPosition;
-
-varying vec3 eyeVec;
-varying vec3 tsEyeVec;
-varying vec3 lightVec;
-varying vec3 tsLightVec;
-
-bool normalTexturePresent = false;
-bool texTileableHorizontal = false;
-bool texTileableVertical = false;
-bool texSeamless = false;
-
-const float e = 2.718281828459;
-const float BS = 10.0;
-const float fogStart = FOG_START;
-const float fogShadingParameter = 1 / ( 1 - fogStart);
-
-#ifdef ENABLE_TONE_MAPPING
-
-/* Hable's UC2 Tone mapping parameters
- A = 0.22;
- B = 0.30;
- C = 0.10;
- D = 0.20;
- E = 0.01;
- F = 0.30;
- W = 11.2;
- equation used: ((x * (A * x + C * B) + D * E) / (x * (A * x + B) + D * F)) - E / F
-*/
-
-vec3 uncharted2Tonemap(vec3 x)
-{
- return ((x * (0.22 * x + 0.03) + 0.002) / (x * (0.22 * x + 0.3) + 0.06)) - 0.03334;
-}
-
-vec4 applyToneMapping(vec4 color)
-{
- color = vec4(pow(color.rgb, vec3(2.2)), color.a);
- const float gamma = 1.6;
- const float exposureBias = 5.5;
- color.rgb = uncharted2Tonemap(exposureBias * color.rgb);
- // Precalculated white_scale from
- //vec3 whiteScale = 1.0 / uncharted2Tonemap(vec3(W));
- vec3 whiteScale = vec3(1.036015346);
- color.rgb *= whiteScale;
- return vec4(pow(color.rgb, vec3(1.0 / gamma)), color.a);
-}
-#endif
-
-void get_texture_flags()
-{
- vec4 flags = texture2D(textureFlags, vec2(0.0, 0.0));
- if (flags.r > 0.5) {
- normalTexturePresent = true;
- }
- if (flags.g > 0.5) {
- texTileableHorizontal = true;
- }
- if (flags.b > 0.5) {
- texTileableVertical = true;
- }
- if (texTileableHorizontal && texTileableVertical) {
- texSeamless = true;
- }
-}
-
-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;
- get_texture_flags();
-
-#ifdef ENABLE_PARALLAX_OCCLUSION
- if (normalTexturePresent) {
- vec3 tsEye = normalize(tsEyeVec);
- float height = PARALLAX_OCCLUSION_SCALE * texture2D(normalTexture, uv).a - PARALLAX_OCCLUSION_BIAS;
- uv = uv + texture2D(normalTexture, uv).z * height * vec2(tsEye.x,-tsEye.y);
- }
-#endif
-
-#ifdef USE_NORMALMAPS
- if (normalTexturePresent) {
- bump = get_normal_map(uv);
- use_normalmap = true;
- }
-#endif
-
-#if GENERATE_NORMALMAPS == 1
- 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);
- /* Mathematic optimization
- * Original: color = 0.05*base.rgb + diffuse*base.rgb + 0.2*specular*base.rgb;
- * This optimization save 2 multiplications (orig: 4 multiplications + 3 additions
- * end: 2 multiplications + 3 additions)
- */
- color = (0.05 + diffuse + 0.2 * specular) * base.rgb;
- } else {
- color = base.rgb;
- }
-#else
- color = base.rgb;
-#endif
-
- vec4 col = vec4(color.rgb * gl_Color.rgb, 1.0);
-
-#ifdef ENABLE_TONE_MAPPING
- col = applyToneMapping(col);
-#endif
-
- // Due to a bug in some (older ?) graphics stacks (possibly in the glsl compiler ?),
- // the fog will only be rendered correctly if the last operation before the
- // clamp() is an addition. Else, the clamp() seems to be ignored.
- // E.g. the following won't work:
- // float clarity = clamp(fogShadingParameter
- // * (fogDistance - length(eyeVec)) / fogDistance), 0.0, 1.0);
- // As additions usually come for free following a multiplication, the new formula
- // should be more efficient as well.
- // Note: clarity = (1 - fogginess)
- float clarity = clamp(fogShadingParameter
- - fogShadingParameter * length(eyeVec) / fogDistance, 0.0, 1.0);
- col = mix(skyBgColor, col, clarity);
- col = vec4(col.rgb, base.a);
-
- gl_FragColor = col;
-}
diff --git a/client/shaders/water_surface_shader/opengl_vertex.glsl b/client/shaders/water_surface_shader/opengl_vertex.glsl
deleted file mode 100644
index 112db9bb5..000000000
--- a/client/shaders/water_surface_shader/opengl_vertex.glsl
+++ /dev/null
@@ -1,137 +0,0 @@
-uniform mat4 mWorldViewProj;
-uniform mat4 mWorld;
-
-// Color of the light emitted by the sun.
-uniform vec3 dayLight;
-uniform vec3 eyePosition;
-uniform float animationTimer;
-
-varying vec3 vPosition;
-varying vec3 worldPosition;
-
-varying vec3 eyeVec;
-varying vec3 lightVec;
-varying vec3 tsEyeVec;
-varying vec3 tsLightVec;
-
-// Color of the light emitted by the light sources.
-const vec3 artificialLight = vec3(1.04, 1.04, 1.04);
-const float e = 2.718281828459;
-const float BS = 10.0;
-
-float smoothCurve(float x)
-{
- return x * x * (3.0 - 2.0 * x);
-}
-float triangleWave(float x)
-{
- return abs(fract( x + 0.5 ) * 2.0 - 1.0);
-}
-float smoothTriangleWave(float x)
-{
- return smoothCurve(triangleWave( x )) * 2.0 - 1.0;
-}
-
-void main(void)
-{
- gl_TexCoord[0] = gl_MultiTexCoord0;
-
-#if (MATERIAL_TYPE == TILE_MATERIAL_LIQUID_TRANSPARENT || MATERIAL_TYPE == TILE_MATERIAL_LIQUID_OPAQUE) && ENABLE_WAVING_WATER
- vec4 pos = gl_Vertex;
- pos.y -= 2.0;
-
- float posYbuf = (pos.z / WATER_WAVE_LENGTH + animationTimer * WATER_WAVE_SPEED * WATER_WAVE_LENGTH);
-
- pos.y -= sin(posYbuf) * WATER_WAVE_HEIGHT + sin(posYbuf / 7.0) * WATER_WAVE_HEIGHT;
- gl_Position = mWorldViewProj * pos;
-#elif MATERIAL_TYPE == TILE_MATERIAL_WAVING_LEAVES && ENABLE_WAVING_LEAVES
- vec4 pos = gl_Vertex;
- vec4 pos2 = mWorld * gl_Vertex;
- /*
- * Mathematic optimization: pos2.x * A + pos2.z * A (2 multiplications + 1 addition)
- * replaced with: (pos2.x + pos2.z) * A (1 addition + 1 multiplication)
- * And bufferize calcul to a float
- */
- float pos2XpZ = pos2.x + pos2.z;
- pos.x += (smoothTriangleWave(animationTimer*10.0 + pos2XpZ * 0.01) * 2.0 - 1.0) * 0.4;
- pos.y += (smoothTriangleWave(animationTimer*15.0 + pos2XpZ * -0.01) * 2.0 - 1.0) * 0.2;
- pos.z += (smoothTriangleWave(animationTimer*10.0 + pos2XpZ * -0.01) * 2.0 - 1.0) * 0.4;
- gl_Position = mWorldViewProj * pos;
-#elif MATERIAL_TYPE == TILE_MATERIAL_WAVING_PLANTS && ENABLE_WAVING_PLANTS
- vec4 pos = gl_Vertex;
- vec4 pos2 = mWorld * gl_Vertex;
- if (gl_TexCoord[0].y < 0.05) {
- /*
- * Mathematic optimization: pos2.x * A + pos2.z * A (2 multiplications + 1 addition)
- * replaced with: (pos2.x + pos2.z) * A (1 addition + 1 multiplication)
- * And bufferize calcul to a float
- */
- float pos2XpZ = pos2.x + pos2.z;
- pos.x += (smoothTriangleWave(animationTimer * 20.0 + pos2XpZ * 0.1) * 2.0 - 1.0) * 0.8;
- pos.y -= (smoothTriangleWave(animationTimer * 10.0 + pos2XpZ * -0.5) * 2.0 - 1.0) * 0.4;
- }
- gl_Position = mWorldViewProj * pos;
-#else
- gl_Position = mWorldViewProj * gl_Vertex;
-#endif
-
- vPosition = gl_Position.xyz;
- worldPosition = (mWorld * gl_Vertex).xyz;
- vec3 sunPosition = vec3 (0.0, eyePosition.y * BS + 900.0, 0.0);
-
- vec3 normal, tangent, binormal;
- normal = normalize(gl_NormalMatrix * gl_Normal);
- if (gl_Normal.x > 0.5) {
- // 1.0, 0.0, 0.0
- tangent = normalize(gl_NormalMatrix * vec3( 0.0, 0.0, -1.0));
- binormal = normalize(gl_NormalMatrix * vec3( 0.0, -1.0, 0.0));
- } else if (gl_Normal.x < -0.5) {
- // -1.0, 0.0, 0.0
- tangent = normalize(gl_NormalMatrix * vec3( 0.0, 0.0, 1.0));
- binormal = normalize(gl_NormalMatrix * vec3( 0.0, -1.0, 0.0));
- } else if (gl_Normal.y > 0.5) {
- // 0.0, 1.0, 0.0
- tangent = normalize(gl_NormalMatrix * vec3( 1.0, 0.0, 0.0));
- binormal = normalize(gl_NormalMatrix * vec3( 0.0, 0.0, 1.0));
- } else if (gl_Normal.y < -0.5) {
- // 0.0, -1.0, 0.0
- tangent = normalize(gl_NormalMatrix * vec3( 1.0, 0.0, 0.0));
- binormal = normalize(gl_NormalMatrix * vec3( 0.0, 0.0, 1.0));
- } else if (gl_Normal.z > 0.5) {
- // 0.0, 0.0, 1.0
- tangent = normalize(gl_NormalMatrix * vec3( 1.0, 0.0, 0.0));
- binormal = normalize(gl_NormalMatrix * vec3( 0.0, -1.0, 0.0));
- } else if (gl_Normal.z < -0.5) {
- // 0.0, 0.0, -1.0
- tangent = normalize(gl_NormalMatrix * vec3(-1.0, 0.0, 0.0));
- binormal = normalize(gl_NormalMatrix * vec3( 0.0, -1.0, 0.0));
- }
- mat3 tbnMatrix = mat3(tangent.x, binormal.x, normal.x,
- tangent.y, binormal.y, normal.y,
- tangent.z, binormal.z, normal.z);
-
- lightVec = sunPosition - worldPosition;
- tsLightVec = lightVec * tbnMatrix;
- eyeVec = (gl_ModelViewMatrix * gl_Vertex).xyz;
- tsEyeVec = eyeVec * tbnMatrix;
-
- // Calculate color.
- // Red, green and blue components are pre-multiplied with
- // the brightness, so now we have to multiply these
- // colors with the color of the incoming light.
- // The pre-baked colors are halved to prevent overflow.
- vec4 color;
- // The alpha gives the ratio of sunlight in the incoming light.
- float nightRatio = 1 - gl_Color.a;
- color.rgb = gl_Color.rgb * (gl_Color.a * dayLight.rgb +
- nightRatio * artificialLight.rgb) * 2;
- color.a = 1;
-
- // Emphase blue a bit in darker places
- // See C++ implementation in mapblock_mesh.cpp finalColorBlend()
- float brightness = (color.r + color.g + color.b) / 3;
- color.b += max(0.0, 0.021 - abs(0.2 * brightness - 0.021) +
- 0.07 * brightness);
-
- gl_FrontColor = gl_BackColor = clamp(color, 0.0, 1.0);
-}
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