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author | ShadowNinja <shadowninja@minetest.net> | 2017-06-03 14:55:10 -0400 |
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committer | ShadowNinja <shadowninja@minetest.net> | 2017-06-03 14:55:10 -0400 |
commit | caecdb681c428c1aab9c0f7eec2570c0460f995c (patch) | |
tree | e5115982ea59bbf2343ba9b35bc4a0cfbb56f407 /client/shaders/water_surface_shader/opengl_vertex.glsl | |
parent | 81d56b94919dceb7b2e51d70b21a7ca22f852bd5 (diff) | |
parent | 80dc961d24e1964e25d57039ddb2ba639f9f4d22 (diff) | |
download | minetest-caecdb681c428c1aab9c0f7eec2570c0460f995c.tar.gz minetest-caecdb681c428c1aab9c0f7eec2570c0460f995c.tar.bz2 minetest-caecdb681c428c1aab9c0f7eec2570c0460f995c.zip |
Merge 0.4.16 into stable-0.4
Diffstat (limited to 'client/shaders/water_surface_shader/opengl_vertex.glsl')
-rw-r--r-- | client/shaders/water_surface_shader/opengl_vertex.glsl | 142 |
1 files changed, 0 insertions, 142 deletions
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 a930e7b8f..000000000 --- a/client/shaders/water_surface_shader/opengl_vertex.glsl +++ /dev/null @@ -1,142 +0,0 @@ -uniform mat4 mWorldViewProj; -uniform mat4 mWorld; - -uniform float dayNightRatio; -uniform vec3 eyePosition; -uniform float animationTimer; - -varying vec3 vPosition; -varying vec3 worldPosition; - -varying vec3 eyeVec; -varying vec3 lightVec; -varying vec3 tsEyeVec; -varying vec3 tsLightVec; - -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; - - vec4 color; - float day = gl_Color.r; - float night = gl_Color.g; - float light_source = gl_Color.b; - - float rg = mix(night, day, dayNightRatio); - rg += light_source * 2.5; // Make light sources brighter - float b = rg; - - // Moonlight is blue - b += (day - night) / 13.0; - rg -= (day - night) / 23.0; - - // Emphase blue a bit in darker places - // See C++ implementation in mapblock_mesh.cpp finalColorBlend() - b += max(0.0, (1.0 - abs(b - 0.13)/0.17) * 0.025); - - // Artificial light is yellow-ish - // See C++ implementation in mapblock_mesh.cpp finalColorBlend() - rg += max(0.0, (1.0 - abs(rg - 0.85)/0.15) * 0.065); - - color.r = rg; - color.g = rg; - color.b = b; - - color.a = gl_Color.a; - gl_FrontColor = gl_BackColor = clamp(color,0.0,1.0); -} |