From: RealBadAngel Date: Mon, 7 Jul 2014 14:17:51 +0000 (+0200) Subject: Faces shading fixes X-Git-Url: http://81.2.79.47:8989/gitweb/?a=commitdiff_plain;h=c9ba92c4ad0b010d6d36890c3b1ddfb2e773560f;p=zefram%2Fminetest%2Fminetest_engine.git Faces shading fixes --- diff --git a/client/shaders/nodes_shader/opengl_vertex.glsl b/client/shaders/nodes_shader/opengl_vertex.glsl index 88e489e6..03b682d1 100644 --- a/client/shaders/nodes_shader/opengl_vertex.glsl +++ b/client/shaders/nodes_shader/opengl_vertex.glsl @@ -63,35 +63,28 @@ void main(void) vec3 normal, tangent, binormal; normal = normalize(gl_NormalMatrix * gl_Normal); - float tileContrast = 1.0; if (gl_Normal.x > 0.5) { // 1.0, 0.0, 0.0 - tileContrast = 0.8; 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 - tileContrast = 0.8; 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 - tileContrast = 1.2; 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 - tileContrast = 0.3; 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 - tileContrast = 0.5; 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 - tileContrast = 0.5; tangent = normalize(gl_NormalMatrix * vec3(-1.0, 0.0, 0.0)); binormal = normalize(gl_NormalMatrix * vec3( 0.0, -1.0, 0.0)); } @@ -129,13 +122,6 @@ void main(void) color.g = rg; color.b = b; -#if !(MATERIAL_TYPE == TILE_MATERIAL_LIQUID_TRANSPARENT || MATERIAL_TYPE == TILE_MATERIAL_LIQUID_OPAQUE) - // Make sides and bottom darker than the top - color = color * color; // SRGB -> Linear - color *= tileContrast; - color = sqrt(color); // Linear -> SRGB -#endif - color.a = gl_Color.a; gl_FrontColor = gl_BackColor = clamp(color,0.0,1.0); } diff --git a/client/shaders/water_surface_shader/opengl_vertex.glsl b/client/shaders/water_surface_shader/opengl_vertex.glsl index 88e489e6..03b682d1 100644 --- a/client/shaders/water_surface_shader/opengl_vertex.glsl +++ b/client/shaders/water_surface_shader/opengl_vertex.glsl @@ -63,35 +63,28 @@ void main(void) vec3 normal, tangent, binormal; normal = normalize(gl_NormalMatrix * gl_Normal); - float tileContrast = 1.0; if (gl_Normal.x > 0.5) { // 1.0, 0.0, 0.0 - tileContrast = 0.8; 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 - tileContrast = 0.8; 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 - tileContrast = 1.2; 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 - tileContrast = 0.3; 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 - tileContrast = 0.5; 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 - tileContrast = 0.5; tangent = normalize(gl_NormalMatrix * vec3(-1.0, 0.0, 0.0)); binormal = normalize(gl_NormalMatrix * vec3( 0.0, -1.0, 0.0)); } @@ -129,13 +122,6 @@ void main(void) color.g = rg; color.b = b; -#if !(MATERIAL_TYPE == TILE_MATERIAL_LIQUID_TRANSPARENT || MATERIAL_TYPE == TILE_MATERIAL_LIQUID_OPAQUE) - // Make sides and bottom darker than the top - color = color * color; // SRGB -> Linear - color *= tileContrast; - color = sqrt(color); // Linear -> SRGB -#endif - color.a = gl_Color.a; gl_FrontColor = gl_BackColor = clamp(color,0.0,1.0); } diff --git a/src/mapblock_mesh.cpp b/src/mapblock_mesh.cpp index 22b56a15..080131a6 100644 --- a/src/mapblock_mesh.cpp +++ b/src/mapblock_mesh.cpp @@ -32,14 +32,14 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "settings.h" #include "util/directiontables.h" -float srgb_linear_multiply(float f, float m, float max) +void applyContrast(video::SColor& color, float Factor) { - f = f * f; // SRGB -> Linear - f *= m; - f = sqrt(f); // Linear -> SRGB - if(f > max) - f = max; - return f; + float r = color.getRed(); + float g = color.getGreen(); + float b = color.getBlue(); + color.setRed(irr::core::clamp((int)sqrt(r * r * Factor), 0, 255)); + color.setGreen(irr::core::clamp((int)sqrt(g * g * Factor), 0, 255)); + color.setBlue(irr::core::clamp((int)sqrt(b * b * Factor), 0, 255)); } /* @@ -203,20 +203,6 @@ static u8 getFaceLight(enum LightBank bank, MapNode n, MapNode n2, //return decode_light(light_source); light = light_source; - // Make some nice difference to different sides - - // This makes light come from a corner - /*if(face_dir.X == 1 || face_dir.Z == 1 || face_dir.Y == -1) - light = diminish_light(diminish_light(light)); - else if(face_dir.X == -1 || face_dir.Z == -1) - light = diminish_light(light);*/ - - // All neighboring faces have different shade (like in minecraft) - if(face_dir.X == 1 || face_dir.X == -1 || face_dir.Y == -1) - light = diminish_light(diminish_light(light)); - else if(face_dir.Z == 1 || face_dir.Z == -1) - light = diminish_light(light); - return decode_light(light); } @@ -352,21 +338,15 @@ static void finalColorBlend(video::SColor& result, 1, 4, 6, 6, 6, 5, 4, 3, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }; - if(b < 0) - b = 0; - if(b > 255) - b = 255; b += emphase_blue_when_dark[b / 8]; + b = irr::core::clamp (b, 0, 255); // Artificial light is yellow-ish static u8 emphase_yellow_when_artificial[16] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 10, 15, 15, 15 }; rg += emphase_yellow_when_artificial[night/16]; - if(rg < 0) - rg = 0; - if(rg > 255) - rg = 255; + rg = irr::core::clamp (rg, 0, 255); result.setRed(rg); result.setGreen(rg); @@ -1168,25 +1148,32 @@ MapBlockMesh::MapBlockMesh(MeshMakeData *data, v3s16 camera_offset): os.str(), &p.tile.texture_id); } - // - Classic lighting (shaders handle this by themselves) - if(!enable_shaders) + + for(u32 j = 0; j < p.vertices.size(); j++) { - for(u32 j = 0; j < p.vertices.size(); j++) + video::SColor &vc = p.vertices[j].Color; + if(p.vertices[j].Normal.Y > 0.5) { + applyContrast (vc, 1.2); + } else if (p.vertices[j].Normal.Y < -0.5) { + applyContrast (vc, 0.3); + } else if (p.vertices[j].Normal.X > 0.5) { + applyContrast (vc, 0.5); + } else if (p.vertices[j].Normal.X < -0.5) { + applyContrast (vc, 0.5); + } else if (p.vertices[j].Normal.Z > 0.5) { + applyContrast (vc, 0.8); + } else if (p.vertices[j].Normal.Z < -0.5) { + applyContrast (vc, 0.8); + } + if(!enable_shaders) { - video::SColor &vc = p.vertices[j].Color; + // - Classic lighting (shaders handle this by themselves) // Set initial real color and store for later updates u8 day = vc.getRed(); u8 night = vc.getGreen(); finalColorBlend(vc, day, night, 1000); if(day != night) m_daynight_diffs[i][j] = std::make_pair(day, night); - // Brighten topside (no shaders) - if(p.vertices[j].Normal.Y > 0.5) - { - vc.setRed (srgb_linear_multiply(vc.getRed(), 1.3, 255.0)); - vc.setGreen(srgb_linear_multiply(vc.getGreen(), 1.3, 255.0)); - vc.setBlue (srgb_linear_multiply(vc.getBlue(), 1.3, 255.0)); - } } } @@ -1293,7 +1280,6 @@ bool MapBlockMesh::animate(bool faraway, float time, int crack, u32 daynight_rat bool enable_shaders = g_settings->getBool("enable_shaders"); bool enable_bumpmapping = g_settings->getBool("enable_bumpmapping"); bool enable_parallax_occlusion = g_settings->getBool("enable_parallax_occlusion"); - bool smooth_lighting = g_settings->getBool("smooth_lighting"); if(!m_has_animation) { @@ -1407,36 +1393,6 @@ bool MapBlockMesh::animate(bool faraway, float time, int crack, u32 daynight_rat u8 night = j->second.second; finalColorBlend(vertices[vertexIndex].Color, day, night, daynight_ratio); - // If no smooth lighting, shading is already correct - if(!smooth_lighting) - continue; - // Make sides and bottom darker than the top - video::SColor &vc = vertices[vertexIndex].Color; - if(vertices[vertexIndex].Normal.Y > 0.5) { - vc.setRed (srgb_linear_multiply(vc.getRed(), 1.2, 255.0)); - vc.setGreen(srgb_linear_multiply(vc.getGreen(), 1.2, 255.0)); - vc.setBlue (srgb_linear_multiply(vc.getBlue(), 1.2, 255.0)); - } else if (vertices[vertexIndex].Normal.Y < -0.5) { - vc.setRed (srgb_linear_multiply(vc.getRed(), 0.3, 255.0)); - vc.setGreen(srgb_linear_multiply(vc.getGreen(), 0.3, 255.0)); - vc.setBlue (srgb_linear_multiply(vc.getBlue(), 0.3, 255.0)); - } else if (vertices[vertexIndex].Normal.X > 0.5) { - vc.setRed (srgb_linear_multiply(vc.getRed(), 0.8, 255.0)); - vc.setGreen(srgb_linear_multiply(vc.getGreen(), 0.8, 255.0)); - vc.setBlue (srgb_linear_multiply(vc.getBlue(), 0.8, 255.0)); - } else if (vertices[vertexIndex].Normal.X < -0.5) { - vc.setRed (srgb_linear_multiply(vc.getRed(), 0.8, 255.0)); - vc.setGreen(srgb_linear_multiply(vc.getGreen(), 0.8, 255.0)); - vc.setBlue (srgb_linear_multiply(vc.getBlue(), 0.8, 255.0)); - } else if (vertices[vertexIndex].Normal.Z > 0.5) { - vc.setRed (srgb_linear_multiply(vc.getRed(), 0.5, 255.0)); - vc.setGreen(srgb_linear_multiply(vc.getGreen(), 0.5, 255.0)); - vc.setBlue (srgb_linear_multiply(vc.getBlue(), 0.5, 255.0)); - } else if (vertices[vertexIndex].Normal.Z < -0.5) { - vc.setRed (srgb_linear_multiply(vc.getRed(), 0.5, 255.0)); - vc.setGreen(srgb_linear_multiply(vc.getGreen(), 0.5, 255.0)); - vc.setBlue (srgb_linear_multiply(vc.getBlue(), 0.5, 255.0)); - } } } m_last_daynight_ratio = daynight_ratio;