116     tx->col = tex->col;  in newscalarvol()
131     color col;  in VoxelColor()  local
140         col.r = scalar * 4.0;  in VoxelColor()
141         col.g = 0.0;  in VoxelColor()
142         col.b = 0.0;  in VoxelColor()
146             col.r = 1.0;  in VoxelColor()
147             col.g = (scalar - 0.25) * 2.0;  in VoxelColor()
148             col.b = 0.0;  in VoxelColor()
151             col.r = 1.0;  in VoxelColor()
152             col.g = 1.0;  in VoxelColor()
153             col.b = (scalar - 0.75) * 4.0;  in VoxelColor()
157     return col;  in VoxelColor()
161     color col, col2;  in scalar_volume_texture()  local
175     col.r = 0.0;  in scalar_volume_texture()
176     col.g = 0.0;  in scalar_volume_texture()
177     col.b = 0.0;  in scalar_volume_texture()
184             return col;  in scalar_volume_texture()
200         return col;  in scalar_volume_texture()
202         return col;  in scalar_volume_texture()
206             return col;  in scalar_volume_texture()
222         return col;  in scalar_volume_texture()
224         return col;  in scalar_volume_texture()
228             return col;  in scalar_volume_texture()
244         return col;  in scalar_volume_texture()
246         return col;  in scalar_volume_texture()
287             col.r += transval * col2.r;  in scalar_volume_texture()
288             col.g += transval * col2.g;  in scalar_volume_texture()
289             col.b += transval * col2.b;  in scalar_volume_texture()
303         col.r += transcol.r; /* add the transmitted ray  */  in scalar_volume_texture()
304         col.g += transcol.g; /* to the diffuse and       */  in scalar_volume_texture()
305         col.b += transcol.b; /* transmission total..     */  in scalar_volume_texture()
308     return col;  in scalar_volume_texture()