From 414d1ff9e2a1f40929480e094631efb0878e4ecf Mon Sep 17 00:00:00 2001 From: Nils Dagsson Moskopp Date: Mon, 18 Jul 2011 22:50:14 +0200 Subject: [PATCH] + volumetric clouds (thanks teddydestodes) --- src/clouds.cpp | 73 ++++++++++++++++++++++++++++++++++++++++++-------- 1 file changed, 62 insertions(+), 11 deletions(-) diff --git a/src/clouds.cpp b/src/clouds.cpp index 122beeda..02255041 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); + } + } } -- 2.30.2