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author | Nils Dagsson Moskopp <nils@dieweltistgarnichtso.net> | 2011-07-18 22:50:14 +0200 |
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committer | Nils Dagsson Moskopp <nils@dieweltistgarnichtso.net> | 2011-07-18 22:50:14 +0200 |
commit | 890d3468e757421629b31dca9198677bdd974f50 (patch) | |
tree | 77c4ffc841598ac3f95615cc7da2e94da2b60548 | |
parent | 466f9d87b655e743499e78b39c6c31c781fed422 (diff) | |
download | minetest-890d3468e757421629b31dca9198677bdd974f50.tar.gz minetest-890d3468e757421629b31dca9198677bdd974f50.tar.bz2 minetest-890d3468e757421629b31dca9198677bdd974f50.zip |
+ volumetric clouds (thanks teddydestodes)
-rw-r--r-- | src/clouds.cpp | 73 |
1 files changed, 62 insertions, 11 deletions
diff --git a/src/clouds.cpp b/src/clouds.cpp index 122beedac..022550414 100644 --- a/src/clouds.cpp +++ b/src/clouds.cpp @@ -125,22 +125,73 @@ void Clouds::render() m_seed, 3, 0.4); if(noise < 0.8) continue; - - v2f p1 = p0 + v2f(1,1)*cloud_size; - //video::SColor c(128,255,255,255); float b = m_brightness; video::SColor c(128,b*230,b*230,b*255); - video::S3DVertex vertices[4] = + + video::S3DVertex v[4] = { - video::S3DVertex(p0.X,m_cloud_y,p0.Y, 0,0,0, c, 0,1), - video::S3DVertex(p0.X,m_cloud_y,p1.Y, 0,0,0, c, 1,1), - video::S3DVertex(p1.X,m_cloud_y,p1.Y, 0,0,0, c, 1,0), - video::S3DVertex(p1.X,m_cloud_y,p0.Y, 0,0,0, c, 0,0), + video::S3DVertex(0,0,0, 0,0,0, c, 0, 1), + video::S3DVertex(0,0,0, 0,0,0, c, 1, 1), + video::S3DVertex(0,0,0, 0,0,0, c, 1, 0), + video::S3DVertex(0,0,0, 0,0,0, c, 0, 0) }; - u16 indices[] = {0,1,2,2,3,0}; - driver->drawVertexPrimitiveList(vertices, 4, indices, 2, - video::EVT_STANDARD, scene::EPT_TRIANGLES, video::EIT_16BIT); + + f32 rx = cloud_size; + f32 ry = 16*BS; + f32 rz = cloud_size; + + for(int i=0;i<6;i++) + { + switch(i) + { + case 0: // top + v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz; + v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz; + v[2].Pos.X= rx; v[2].Pos.Y= ry; v[2].Pos.Z= rz; + v[3].Pos.X= rx; v[3].Pos.Y= ry, v[3].Pos.Z=-rz; + break; + case 1: // back + v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz; + v[1].Pos.X= rx; v[1].Pos.Y= ry; v[1].Pos.Z=-rz; + v[2].Pos.X= rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz; + v[3].Pos.X=-rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz; + break; + case 2: //right + v[0].Pos.X= rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz; + v[1].Pos.X= rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz; + v[2].Pos.X= rx; v[2].Pos.Y=-ry; v[2].Pos.Z= rz; + v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz; + break; + case 3: // front + v[0].Pos.X= rx; v[0].Pos.Y= ry; v[0].Pos.Z= rz; + v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz; + v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z= rz; + v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z= rz; + break; + case 4: // left + v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z= rz; + v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z=-rz; + v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz; + v[3].Pos.X=-rx; v[3].Pos.Y=-ry, v[3].Pos.Z= rz; + break; + case 5: // bottom + v[0].Pos.X= rx; v[0].Pos.Y=-ry; v[0].Pos.Z= rz; + v[1].Pos.X=-rx; v[1].Pos.Y=-ry; v[1].Pos.Z= rz; + v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz; + v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz; + break; + } + + v3f pos = v3f(p0.X,m_cloud_y,p0.Y); + + for(u16 i=0; i<4; i++) + v[i].Pos += pos; + u16 indices[] = {0,1,2,2,3,0}; + driver->drawVertexPrimitiveList(v, 4, indices, 2, + video::EVT_STANDARD, scene::EPT_TRIANGLES, video::EIT_16BIT); + } + } } |