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fade alpha of buildings

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This commit is contained in:
Hannes Janetzek 2013-04-18 23:01:55 +02:00
parent ead18a2356
commit 2c4eea3e59
1 changed files with 6 additions and 7 deletions
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13
src/org/oscim/renderer/overlays/ExtrusionOverlay.java
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@ -360,7 +360,7 @@ public class ExtrusionOverlay extends RenderOverlay {
_a * ((_r + _l + 1) / 255),
_a * ((_g + _l + 1) / 255),
_a * ((_b + _l) / 255),
_a,
0.8f,
// sligthly differ adjacent side
// faces to improve contrast
_a * ((_r - _s) / 255 + 0.01f),
@ -375,8 +375,7 @@ public class ExtrusionOverlay extends RenderOverlay {
(_r - _o) / 255,
(_g - _o) / 255,
(_b - _o) / 255,
// 1, 0, 0,
1.0f,
0.9f,
};
final static String extrusionVertexShader = ""
@ -396,24 +395,24 @@ public class ExtrusionOverlay extends RenderOverlay {
//+ " z = gl_Position.z;"
+ " if (u_mode == 0)"
// roof / depth pass
+ " color = u_color[0];"
+ " color = u_color[0] * u_alpha;"
+ " else {"
// decrease contrast with distance
+ " if (u_mode == 1){"
// sides 1 - use 0xff00
// scale direction to -0.5<>0.5
//+ " float dir = abs(a_light.y / ff - 0.5);"
+ " float dir = a_light.y / ff;"
+ " float z = (0.98 + gl_Position.z * 0.02);"
+ " color = u_color[1];"
+ " color.rgb *= (0.85 + dir * 0.15) * z;"
+ " color *= u_alpha;"
+ " } else if (u_mode == 2){"
// sides 2 - use 0x00ff
//+ " float dir = abs(a_light.x / ff - 0.5);"
+ " float dir = a_light.x / ff;"
+ " float z = (0.98 + gl_Position.z * 0.02);"
+ " color = u_color[2] * z;"
+ " color = u_color[2];"
+ " color.rgb *= (0.85 + dir * 0.15) * z;"
+ " color *= u_alpha;"
+ " } else {"
// outline
+ " float z = (0.8 - gl_Position.z * 0.2);"