Harald JOHNSEN:

[simgear.git] / simgear / scene / sky / newcloud.cxx

diff --git a/simgear/scene/sky/newcloud.cxx b/simgear/scene/sky/newcloud.cxx
index 2fd119b0d5c9e6c9369dd73eaa88c1c7e257b0fe..a527b792efcd288883aa139aabec858f5a1b8ece 100644 (file)
--- a/simgear/scene/sky/newcloud.cxx
+++ b/simgear/scene/sky/newcloud.cxx
@@ -48,6 +48,7 @@ bool SGNewCloud::useAnisotropic = true;
 SGBbCache *SGNewCloud::cldCache = 0;
 static bool texturesLoaded = false;
 static float minx, maxx, miny, maxy, minz, maxz;
+static int cloudIdCounter = 1;
 
 float SGNewCloud::nearRadius = 3500.0f;
 bool SGNewCloud::lowQuality = false;
@@ -64,7 +65,7 @@ void SGNewCloud::init(void) {
        pauseLength = 0.0f;
        last_step = -1.0f;
        familly = CLFamilly_nn;
-       cloudId = (int) this;
+       cloudId = ++cloudIdCounter;
        sgSetVec3(center, 0.0f, 0.0f, 0.0f);
        sgSetVec3(cloudpos, 0.0f, 0.0f, 0.0f);
        radius = 0.0f;
@@ -243,7 +244,7 @@ void SGNewCloud::addSprite(float x, float y, float z, float r, CLbox_type type,
        sgSubVec3( deltaPos, newSpriteDef.pos, thisBox->pos );
        sgAddVec3( thisBox->center, deltaPos );
 
-       r = r * 0.65f;  // 0.5 * 1.xxx
+       r = r * 0.70f;  // 0.5 * 1.xxx
     if( x - r < minx )
                minx = x - r;
     if( y - r < miny )
@@ -555,23 +556,18 @@ void SGNewCloud::Render3Dcloud( bool drawBB, sgVec3 FakeEyePos, sgVec3 deltaPos,
                        sgVec3 pos;
                        sgSetVec3( pos, translate[SG_X], translate[SG_Z], translate[SG_Y] );
                        sgCopyVec3( translate, pos );
-                       sgNormaliseVec3( translate );
-#if 0
-                       // change view angle when near a sprite
-                       sgVec3 trans={translate[0], translate[2], translate[1]};
-                       float angle = sgScalarProductVec3( SGCloudField::view_vec, trans );
-                       if( fabs(angle) < 0.85f ) {
-                               // view not ok from under
-                               sgSetVec3( translate, -SGCloudField::view_vec[0],-SGCloudField::view_vec[2],-SGCloudField::view_vec[1] );
-//                             sgSetVec3( l0,1,0,0 );
-//                             sgSetVec3( l1,1,0,0 );
-//                             sgSetVec3( l2,1,0,0 );
-//                             sgSetVec3( l3,1,0,0 );
-                       }
-#endif
+                       translate[2] -= FakeEyePos[1];
+//                     sgNormaliseVec3( translate );
+                       float dist_sprite = sgLengthVec3 ( translate );
+                       sgScaleVec3 ( translate, SG_ONE / dist_sprite ) ;
                        sgVec3 x, y, up = {0.0f, 0.0f, 1.0f};
-                       sgVectorProductVec3(x, translate, up);
-                       sgVectorProductVec3(y, x, translate);
+                       if( dist_sprite > 2*r ) {
+                               sgVectorProductVec3(x, translate, up);
+                               sgVectorProductVec3(y, x, translate);
+                       } else {
+                               sgCopyVec3( x, SGCloudField::view_X );
+                               sgCopyVec3( y, SGCloudField::view_Y );
+                       }
                        sgScaleVec3(x, r);
                        sgScaleVec3(y, r);
  
@@ -665,6 +661,8 @@ void SGNewCloud::RenderBB(sgVec3 deltaPos, bool first_time, float dist_center) {
                sgVec3 pos;
                sgSetVec3( pos, translate[SG_X], translate[SG_Z], translate[SG_Y] );
                sgCopyVec3( translate, pos );
+               pos[2] += deltaPos[1];
+
                sgNormaliseVec3( translate );
                sgVec3 x, y, up = {0.0f, 0.0f, 1.0f};
                sgVectorProductVec3(x, translate, up);
@@ -745,6 +743,7 @@ void SGNewCloud::Render(sgVec3 FakeEyePos) {
 
        sgVec3 deltaPos;
        sgCopyVec3( deltaPos, FakeEyePos);
+       deltaPos[1] = 0.0;
     sgSubVec3( dist, center, FakeEyePos);
     float dist_center = sgLengthVec3(dist);
 
@@ -804,7 +803,7 @@ void SGNewCloud::Render(sgVec3 FakeEyePos) {
                                }
                 // draw the newly built BB or an old one
                 glBindTexture(GL_TEXTURE_2D, texID);
-                RenderBB(deltaPos, first_time, dist_center);
+                RenderBB(FakeEyePos, first_time, dist_center);
                        }
        }