From 414d1ff9e2a1f40929480e094631efb0878e4ecf Mon Sep 17 00:00:00 2001
From: Nils Dagsson Moskopp <nils@dieweltistgarnichtso.net>
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 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);
+ }
+
}
}
--
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