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animate buildings

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This commit is contained in:
Hannes Janetzek 2013-01-07 15:16:35 +01:00
parent 9d2ebab088
commit 1807f0b9dc
2 changed files with 284 additions and 97 deletions
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122
src/org/oscim/overlay/BuildingOverlay.java
View File

@ -14,15 +14,135 @@
*/ */
package org.oscim.overlay; package org.oscim.overlay;
import org.oscim.core.MapPosition;
import org.oscim.renderer.overlays.ExtrusionOverlay; import org.oscim.renderer.overlays.ExtrusionOverlay;
import org.oscim.view.MapView; import org.oscim.view.MapView;
import android.os.CountDownTimer;
import android.util.Log;
import android.view.MotionEvent;
/** /**
* @author Hannes Janetzek * @author Hannes Janetzek
*/ */
public class BuildingOverlay extends Overlay { public class BuildingOverlay extends Overlay {
private final static String TAG = BuildingOverlay.class.getName();
final ExtrusionOverlay mExtLayer;
public BuildingOverlay(MapView mapView) { public BuildingOverlay(MapView mapView) {
super(); super();
mLayer = new ExtrusionOverlay(mapView); mMapView = mapView;
mExtLayer = new ExtrusionOverlay(mapView);
mLayer = mExtLayer;
}
private final MapView mMapView;
private int multi;
private float mFadeTime = 300;
private float mAlpha = 1;
@Override
public boolean onTouchEvent(MotionEvent e, MapView mapView) {
int action = e.getAction() & MotionEvent.ACTION_MASK;
if (action == MotionEvent.ACTION_POINTER_DOWN) {
multi++;
} else if (action == MotionEvent.ACTION_POINTER_UP) {
multi--;
if (mPrevZoom != 17 && mAlpha > 0) {
// finish hiding
//Log.d(TAG, "add multi hide timer " + mAlpha);
addShowTimer(mFadeTime * mAlpha, false);
}
} else if (action == MotionEvent.ACTION_CANCEL) {
multi = 0;
Log.d(TAG, "cancel " + multi);
mTimer.cancel();
mTimer = null;
}
return false;
}
private byte mPrevZoom = 0;
@Override
public void onUpdate(MapPosition mapPosition, boolean changed) {
byte z = mapPosition.zoomLevel;
if (z == mPrevZoom)
return;
if (z == 17) {
// start showing
//Log.d(TAG, "add show timer " + mAlpha);
addShowTimer(mFadeTime * (1 - mAlpha), true);
} else if (mPrevZoom == 17) {
// indicate hiding
if (multi > 0) {
//Log.d(TAG, "add fade timer " + mAlpha);
addFadeTimer(mFadeTime * mAlpha, false);
} else {
//Log.d(TAG, "add hide timer " + mAlpha);
addShowTimer(mFadeTime * mAlpha, false);
}
}
mPrevZoom = z;
}
void fade(float duration, long tick, boolean dir, float max) {
float a;
if (dir)
a = (1 - max) + (1 - (tick / duration)) * max;
else
a = (1 - max) + (tick / duration) * max;
Log.d(TAG, "fade " + dir + " " + tick + "\t" + a);
mAlpha = a;
mExtLayer.setAlpha(a);
mMapView.render();
}
/* package */CountDownTimer mTimer;
private void addFadeTimer(final float ms, final boolean dir) {
if (mTimer != null)
mTimer.cancel();
mTimer = new CountDownTimer((long) ms, 16) {
@Override
public void onTick(long tick) {
fade(ms, tick, dir, 0.2f);
}
@Override
public void onFinish() {
fade(ms, 0, dir, 0.2f);
mTimer = null;
}
}.start();
}
private void addShowTimer(final float ms, final boolean dir) {
final float d = mFadeTime;
if (mTimer != null)
mTimer.cancel();
mTimer = new CountDownTimer((long) ms, 16) {
@Override
public void onTick(long tick) {
fade(d, tick, dir, 1);
}
@Override
public void onFinish() {
fade(d, 0, dir, 1);
mTimer = null;
}
}.start();
} }
} }

227
src/org/oscim/renderer/overlays/ExtrusionOverlay.java
View File

@ -44,12 +44,13 @@ public class ExtrusionOverlay extends RenderOverlay {
super(mapView); super(mapView);
} }
private static int extrusionProgram; private static int[] extrusionProgram = new int[2];
private static int hExtrusionVertexPosition; private static int[] hExtrusionVertexPosition = new int[2];
private static int hExtrusionLightPosition; private static int[] hExtrusionLightPosition = new int[2];
private static int hExtrusionMatrix; private static int[] hExtrusionMatrix = new int[2];
private static int hExtrusionColor; private static int[] hExtrusionColor = new int[2];
private static int hExtrusionMode; private static int[] hExtrusionAlpha = new int[2];
private static int[] hExtrusionMode = new int[2];
private boolean initialized = false; private boolean initialized = false;
@ -69,18 +70,23 @@ public class ExtrusionOverlay extends RenderOverlay {
if (!initialized) { if (!initialized) {
initialized = true; initialized = true;
for (int i = 0; i < 2; i++) {
// Set up the program for rendering extrusions // Set up the program for rendering extrusions
extrusionProgram = GlUtils.createProgram(extrusionVertexShader, extrusionProgram[i] = GlUtils.createProgram(extrusionVertexShader[i],
extrusionFragmentShader); extrusionFragmentShader);
if (extrusionProgram == 0) { if (extrusionProgram[i] == 0) {
Log.e(TAG, "Could not create extrusion shader program."); Log.e(TAG, "Could not create extrusion shader program.");
return; return;
} }
hExtrusionMatrix = GLES20.glGetUniformLocation(extrusionProgram, "u_mvp"); hExtrusionMatrix[i] = GLES20.glGetUniformLocation(extrusionProgram[i], "u_mvp");
hExtrusionColor = GLES20.glGetUniformLocation(extrusionProgram, "u_color"); hExtrusionColor[i] = GLES20.glGetUniformLocation(extrusionProgram[i], "u_color");
hExtrusionMode = GLES20.glGetUniformLocation(extrusionProgram, "u_mode"); hExtrusionAlpha[i] = GLES20.glGetUniformLocation(extrusionProgram[i], "u_alpha");
hExtrusionVertexPosition = GLES20.glGetAttribLocation(extrusionProgram, "a_position"); hExtrusionMode[i] = GLES20.glGetUniformLocation(extrusionProgram[i], "u_mode");
hExtrusionLightPosition = GLES20.glGetAttribLocation(extrusionProgram, "a_light"); hExtrusionVertexPosition[i] = GLES20.glGetAttribLocation(extrusionProgram[i],
"a_pos");
hExtrusionLightPosition[i] = GLES20.glGetAttribLocation(extrusionProgram[i],
"a_light");
}
ByteBuffer buf = ByteBuffer.allocateDirect(BUFFERSIZE) ByteBuffer buf = ByteBuffer.allocateDirect(BUFFERSIZE)
.order(ByteOrder.nativeOrder()); .order(ByteOrder.nativeOrder());
@ -89,13 +95,18 @@ public class ExtrusionOverlay extends RenderOverlay {
} }
int ready = 0; int ready = 0;
//if (curPos.zoomLevel < 17)
mTileSet = TileManager.getActiveTiles(mTileSet); mTileSet = TileManager.getActiveTiles(mTileSet);
MapTile[] tiles = mTileSet.tiles; MapTile[] tiles = mTileSet.tiles;
// FIXME just release tiles in this case
if (mAlpha == 0) {
isReady = false;
return;
}
// keep a list of tiles available for rendering // keep a list of tiles available for rendering
if (mTiles == null || mTiles.length != tiles.length) if (mTiles == null || mTiles.length != tiles.length)
mTiles = new MapTile[tiles.length]; mTiles = new MapTile[tiles.length];
ExtrusionLayer el; ExtrusionLayer el;
if (curPos.zoomLevel >= 17) { if (curPos.zoomLevel >= 17) {
for (int i = 0; i < mTileSet.cnt; i++) { for (int i = 0; i < mTileSet.cnt; i++) {
@ -161,12 +172,20 @@ public class ExtrusionOverlay extends RenderOverlay {
int depthScale = 1; int depthScale = 1;
if (debug) { int shaderMode = 1;
GLES20.glUseProgram(extrusionProgram); int uExtAlpha = hExtrusionAlpha[shaderMode];
int uExtColor = hExtrusionColor[shaderMode];
int uExtVertexPosition = hExtrusionVertexPosition[shaderMode];
int uExtLightPosition = hExtrusionLightPosition[shaderMode];
int uExtMatrix = hExtrusionMatrix[shaderMode];
int uExtMode = hExtrusionMode[shaderMode];
GLState.enableVertexArrays(hExtrusionVertexPosition, hExtrusionLightPosition); if (debug) {
GLES20.glUniform1i(hExtrusionMode, 0); GLES20.glUseProgram(extrusionProgram[shaderMode]);
GLES20.glUniform4fv(hExtrusionColor, 4, mColor, 0);
GLState.enableVertexArrays(uExtVertexPosition, uExtLightPosition);
GLES20.glUniform1i(uExtMode, 0);
GLES20.glUniform4fv(uExtColor, 4, mColor, 0);
GLState.test(false, false); GLState.test(false, false);
@ -174,23 +193,23 @@ public class ExtrusionOverlay extends RenderOverlay {
ExtrusionLayer el = (ExtrusionLayer) tiles[i].layers.extrusionLayers; ExtrusionLayer el = (ExtrusionLayer) tiles[i].layers.extrusionLayers;
setMatrix(pos, mv, proj, tiles[i], div); setMatrix(pos, mv, proj, tiles[i], div);
GLES20.glUniformMatrix4fv(hExtrusionMatrix, 1, false, mv, 0); GLES20.glUniformMatrix4fv(uExtMatrix, 1, false, mv, 0);
GLES20.glBindBuffer(GLES20.GL_ELEMENT_ARRAY_BUFFER, el.mIndicesBufferID); GLES20.glBindBuffer(GLES20.GL_ELEMENT_ARRAY_BUFFER, el.mIndicesBufferID);
GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, el.mVertexBufferID); GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, el.mVertexBufferID);
GLES20.glVertexAttribPointer(hExtrusionVertexPosition, 3, GLES20.glVertexAttribPointer(uExtVertexPosition, 3,
GLES20.GL_SHORT, false, 8, 0); GLES20.GL_SHORT, false, 8, 0);
GLES20.glVertexAttribPointer(hExtrusionLightPosition, 2, GLES20.glVertexAttribPointer(uExtLightPosition, 2,
GLES20.GL_UNSIGNED_BYTE, false, 8, 6); GLES20.GL_UNSIGNED_BYTE, false, 8, 6);
GLES20.glUniform4f(hExtrusionColor, 0.6f, 0.6f, 0.6f, 0.8f); GLES20.glUniform4f(uExtColor, 0.6f, 0.6f, 0.6f, 0.8f);
GLES20.glDrawElements(GLES20.GL_TRIANGLES, GLES20.glDrawElements(GLES20.GL_TRIANGLES,
(el.mIndiceCnt[0] + el.mIndiceCnt[1] + el.mIndiceCnt[2]), (el.mIndiceCnt[0] + el.mIndiceCnt[1] + el.mIndiceCnt[2]),
GLES20.GL_UNSIGNED_SHORT, 0); GLES20.GL_UNSIGNED_SHORT, 0);
GLES20.glUniform4f(hExtrusionColor, 1.0f, 0.5f, 0.5f, 0.9f); GLES20.glUniform4f(uExtColor, 1.0f, 0.5f, 0.5f, 0.9f);
GLES20.glDrawElements(GLES20.GL_LINES, el.mIndiceCnt[3], GLES20.glDrawElements(GLES20.GL_LINES, el.mIndiceCnt[3],
GLES20.GL_UNSIGNED_SHORT, GLES20.GL_UNSIGNED_SHORT,
@ -204,16 +223,17 @@ public class ExtrusionOverlay extends RenderOverlay {
GLES20.glClear(GLES20.GL_DEPTH_BUFFER_BIT); GLES20.glClear(GLES20.GL_DEPTH_BUFFER_BIT);
GLState.test(true, false); GLState.test(true, false);
GLES20.glUseProgram(extrusionProgram); GLES20.glUseProgram(extrusionProgram[shaderMode]);
GLState.enableVertexArrays(hExtrusionVertexPosition, -1); GLState.enableVertexArrays(uExtVertexPosition, -1);
GLES20.glEnable(GLES20.GL_CULL_FACE); GLES20.glEnable(GLES20.GL_CULL_FACE);
GLES20.glCullFace(GLES20.GL_FRONT); GLES20.glCullFace(GLES20.GL_FRONT);
GLES20.glEnable(GLES20.GL_POLYGON_OFFSET_FILL); GLES20.glEnable(GLES20.GL_POLYGON_OFFSET_FILL);
GLES20.glDepthFunc(GLES20.GL_LESS); GLES20.glDepthFunc(GLES20.GL_LESS);
GLES20.glDepthMask(true); GLES20.glDepthMask(true);
GLES20.glColorMask(false, false, false, false); GLES20.glColorMask(false, false, false, false);
GLES20.glUniform1i(hExtrusionMode, 0); GLES20.glUniform1i(uExtMode, 0);
GLES20.glUniform4fv(hExtrusionColor, 4, mColor, 0); GLES20.glUniform4fv(uExtColor, 4, mColor, 0);
GLES20.glUniform1f(uExtAlpha, mAlpha);
// draw to depth buffer // draw to depth buffer
for (int i = 0; i < mTileCnt; i++) { for (int i = 0; i < mTileCnt; i++) {
@ -222,12 +242,12 @@ public class ExtrusionOverlay extends RenderOverlay {
GLES20.glPolygonOffset(depthScale, GLRenderer.depthOffset(tiles[i])); GLES20.glPolygonOffset(depthScale, GLRenderer.depthOffset(tiles[i]));
setMatrix(pos, mv, proj, tiles[i], div); setMatrix(pos, mv, proj, tiles[i], div);
GLES20.glUniformMatrix4fv(hExtrusionMatrix, 1, false, mv, 0); GLES20.glUniformMatrix4fv(uExtMatrix, 1, false, mv, 0);
GLES20.glBindBuffer(GLES20.GL_ELEMENT_ARRAY_BUFFER, el.mIndicesBufferID); GLES20.glBindBuffer(GLES20.GL_ELEMENT_ARRAY_BUFFER, el.mIndicesBufferID);
GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, el.mVertexBufferID); GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, el.mVertexBufferID);
GLES20.glVertexAttribPointer(hExtrusionVertexPosition, 3, GLES20.glVertexAttribPointer(uExtVertexPosition, 3,
GLES20.GL_SHORT, false, 8, 0); GLES20.GL_SHORT, false, 8, 0);
GLES20.glDrawElements(GLES20.GL_TRIANGLES, GLES20.glDrawElements(GLES20.GL_TRIANGLES,
@ -236,7 +256,7 @@ public class ExtrusionOverlay extends RenderOverlay {
} }
// enable color buffer, use depth mask // enable color buffer, use depth mask
GLState.enableVertexArrays(hExtrusionVertexPosition, hExtrusionLightPosition); GLState.enableVertexArrays(uExtVertexPosition, uExtLightPosition);
GLES20.glColorMask(true, true, true, true); GLES20.glColorMask(true, true, true, true);
GLES20.glDepthMask(false); GLES20.glDepthMask(false);
GLES20.glDepthFunc(GLES20.GL_LEQUAL); GLES20.glDepthFunc(GLES20.GL_LEQUAL);
@ -247,33 +267,33 @@ public class ExtrusionOverlay extends RenderOverlay {
GLES20.glPolygonOffset(depthScale, GLRenderer.depthOffset(tiles[i])); GLES20.glPolygonOffset(depthScale, GLRenderer.depthOffset(tiles[i]));
setMatrix(pos, mv, proj, tiles[i], div); setMatrix(pos, mv, proj, tiles[i], div);
GLES20.glUniformMatrix4fv(hExtrusionMatrix, 1, false, mv, 0); GLES20.glUniformMatrix4fv(uExtMatrix, 1, false, mv, 0);
GLES20.glBindBuffer(GLES20.GL_ELEMENT_ARRAY_BUFFER, el.mIndicesBufferID); GLES20.glBindBuffer(GLES20.GL_ELEMENT_ARRAY_BUFFER, el.mIndicesBufferID);
GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, el.mVertexBufferID); GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, el.mVertexBufferID);
GLES20.glVertexAttribPointer(hExtrusionVertexPosition, 3, GLES20.glVertexAttribPointer(uExtVertexPosition, 3,
GLES20.GL_SHORT, false, 8, 0); GLES20.GL_SHORT, false, 8, 0);
GLES20.glVertexAttribPointer(hExtrusionLightPosition, 2, GLES20.glVertexAttribPointer(uExtLightPosition, 2,
GLES20.GL_UNSIGNED_BYTE, false, 8, 6); GLES20.GL_UNSIGNED_BYTE, false, 8, 6);
// draw roof // draw roof
GLES20.glUniform1i(hExtrusionMode, 0); GLES20.glUniform1i(uExtMode, 0);
GLES20.glDrawElements(GLES20.GL_TRIANGLES, el.mIndiceCnt[2], GLES20.glDrawElements(GLES20.GL_TRIANGLES, el.mIndiceCnt[2],
GLES20.GL_UNSIGNED_SHORT, (el.mIndiceCnt[0] + el.mIndiceCnt[1]) * 2); GLES20.GL_UNSIGNED_SHORT, (el.mIndiceCnt[0] + el.mIndiceCnt[1]) * 2);
// draw sides 1 // draw sides 1
GLES20.glUniform1i(hExtrusionMode, 1); GLES20.glUniform1i(uExtMode, 1);
GLES20.glDrawElements(GLES20.GL_TRIANGLES, el.mIndiceCnt[0], GLES20.glDrawElements(GLES20.GL_TRIANGLES, el.mIndiceCnt[0],
GLES20.GL_UNSIGNED_SHORT, 0); GLES20.GL_UNSIGNED_SHORT, 0);
// draw sides 2 // draw sides 2
GLES20.glUniform1i(hExtrusionMode, 2); GLES20.glUniform1i(uExtMode, 2);
GLES20.glDrawElements(GLES20.GL_TRIANGLES, el.mIndiceCnt[1], GLES20.glDrawElements(GLES20.GL_TRIANGLES, el.mIndiceCnt[1],
GLES20.GL_UNSIGNED_SHORT, el.mIndiceCnt[0] * 2); GLES20.GL_UNSIGNED_SHORT, el.mIndiceCnt[0] * 2);
GLES20.glUniform1i(hExtrusionMode, 3); GLES20.glUniform1i(uExtMode, 3);
GLES20.glDrawElements(GLES20.GL_LINES, el.mIndiceCnt[3], GLES20.glDrawElements(GLES20.GL_LINES, el.mIndiceCnt[3],
GLES20.GL_UNSIGNED_SHORT, GLES20.GL_UNSIGNED_SHORT,
(el.mIndiceCnt[0] + el.mIndiceCnt[1] + el.mIndiceCnt[2]) * 2); (el.mIndiceCnt[0] + el.mIndiceCnt[1] + el.mIndiceCnt[2]) * 2);
@ -295,7 +315,8 @@ public class ExtrusionOverlay extends RenderOverlay {
float y = (float) (tile.pixelY - mapPosition.y * div); float y = (float) (tile.pixelY - mapPosition.y * div);
float scale = mapPosition.scale / div; float scale = mapPosition.scale / div;
Matrix.setIdentityM(matrix, 0); for (int i = 0; i < 16; i++)
matrix[i] = 0;
// translate relative to map center // translate relative to map center
matrix[12] = x * scale; matrix[12] = x * scale;
@ -306,70 +327,112 @@ public class ExtrusionOverlay extends RenderOverlay {
matrix[0] = scale; matrix[0] = scale;
matrix[5] = scale; matrix[5] = scale;
matrix[10] = scale / 1000f; matrix[10] = scale / 1000f;
matrix[15] = 1;
Matrix.multiplyMM(matrix, 0, proj, 0, matrix, 0); Matrix.multiplyMM(matrix, 0, proj, 0, matrix, 0);
} }
private final float _a = 0.8f; private final float _a = 0.8f;
private final float _r = 0xea;
private final float _g = 0xe8;
private final float _b = 0xe6;
private final float _o = 50;
private final float _s = 16;
private final float _l = 8;
private float mAlpha = 1;
private final float[] mColor = { private final float[] mColor = {
// roof color // roof color
236 / 255f * _a, 235 / 255f * _a, 234 / 255f * _a, _a, _a * ((_r + _l) / 255),
// sligthly differ adjacent side faces to improve contrast _a * ((_g + _l) / 255),
201 / 255f, 200 / 255f, 198 / 255f, _a, _a * ((_b + _l) / 255),
200 / 255f, 200 / 255f, 196 / 255f, _a, _a,
// sligthly differ adjacent side
// faces to improve contrast
_a * ((_r - _s + 1) / 255),
_a * ((_g - _s) / 255),
_a * ((_b - _s) / 255),
_a,
_a * ((_r - _s) / 255),
_a * ((_g - _s) / 255),
_a * ((_b - _s - 2) / 255),
_a,
// roof outline // roof outline
0.75f, 0.75f, 0.75f, 1.0f (_r - _o) / 255,
(_g - _o) / 255,
(_b - _o) / 255,
1.0f,
}; };
final static String extrusionVertexShader = "" final static String[] extrusionVertexShader = {
+ "precision mediump float;" "precision mediump float;"
+ "uniform mat4 u_mvp;" + "uniform mat4 u_mvp;"
+ "uniform vec4 u_color[4];" + "uniform vec4 u_color[4];"
+ "uniform int u_mode;" + "uniform int u_mode;"
+ "attribute vec4 a_position;" + "uniform float u_alpha;"
+ "attribute vec4 a_pos;"
+ "attribute vec2 a_light;" + "attribute vec2 a_light;"
+ "varying vec4 color;" + "varying vec4 color;"
+ "const float ff = 255.0;" + "const float ff = 255.0;"
+ "const float a = 0.8;" + "float c_alpha = 0.8;"
+ "void main() {" + "void main() {"
+ " gl_Position = u_mvp * a_position;" + " gl_Position = u_mvp * a_pos;"
+ " if (u_mode == 0)" + " if (u_mode == 0)"
// roof / depth pass // roof / depth pass
+ " color = u_color[0];" + " color = u_color[0];"
+ " else if (u_mode == 1)" + " else {"
// decrease contrast with distance
+ " float z = (0.96 + gl_Position.z * 0.04);"
+ " if (u_mode == 1){"
// sides 1 - use 0xff00 // sides 1 - use 0xff00
+ " color = vec4(u_color[1].rgb * ((0.90 + (0.5 - (a_light.y / ff)) * 0.2) * a), a);" // scale direction to -0.5<>0.5
+ " else if (u_mode == 2)" + " float dir = abs(a_light.y / ff - 0.5);"
+ " color = u_color[1] * z;"
+ " color.rgb *= (0.7 + dir * 0.4);"
+ " } else if (u_mode == 2){"
// sides 2 - use 0x00ff // sides 2 - use 0x00ff
+ " color = vec4(u_color[2].rgb * ((0.90 + (0.5 - (a_light.x / ff)) * 0.2) * a), a);" + " float dir = abs(a_light.x / ff - 0.5);"
+ " else" + " color = u_color[2] * z;"
// outline - decrease contrast with distance + " color.rgb *= (0.7 + dir * 0.4);"
+ " color = u_color[3] * (0.98 + gl_Position.z * 0.02);" + " } else"
+ "}"; // outline
+ " color = u_color[3] * z;"
+ "}}",
// final static String extrusionVertexAnimShader = "" "precision mediump float;"
// + "precision mediump float;" + "uniform mat4 u_mvp;"
// + "uniform mat4 u_mvp;" + "uniform vec4 u_color[4];"
// + "uniform vec4 u_color;" + "uniform int u_mode;"
// + "uniform int u_mode;" + "uniform float u_alpha;"
// + "uniform float u_adv;" + "attribute vec4 a_pos;"
// + "attribute vec4 a_pos;" + "attribute vec2 a_light;"
// + "attribute vec2 a_light;" + "varying vec4 color;"
// + "varying vec4 color;" + "const float ff = 255.0;"
// + "const float ff = 255.0;" + "float c_alpha = 0.8;"
// + "void main() {" + "void main() {"
// + " gl_Position = u_mvp * vec4(a_pos.xy, a_pos.z * adv, 1.0);" // change height by u_alpha
// + " if (u_mode == 0)" + " gl_Position = u_mvp * vec4(a_pos.xy, a_pos.z * u_alpha, 1.0);"
// // roof / depth pass + " if (u_mode == 0)"
// + " color = u_color;" // roof / depth pass
// + " else if (u_mode == 1)" + " color = u_color[0];"
// // sides 1 - use 0xff00 + " else {"
// + " color = vec4(u_color.rgb * (a_light.y / ff), 0.8);" // decrease contrast with distance
// + " else" + " float z = (0.96 + gl_Position.z * 0.04);"
// // sides 2 - use 0x00ff + " if (u_mode == 1){"
// + " color = vec4(u_color.rgb * (a_light.x / ff), 0.8);" // sides 1 - use 0xff00
// + "}"; // scale direction to -0.5<>0.5
+ " float dir = abs(a_light.y / ff - 0.5);"
+ " color = u_color[1] * z;"
+ " color.rgb *= (0.7 + dir * 0.4);"
+ " } else if (u_mode == 2){"
// sides 2 - use 0x00ff
+ " float dir = abs(a_light.x / ff - 0.5);"
+ " color = u_color[2] * z;"
+ " color.rgb *= (0.7 + dir * 0.4);"
+ " } else"
// outline
+ " color = u_color[3] * z;"
+ "}}",
};
final static String extrusionFragmentShader = "" final static String extrusionFragmentShader = ""
+ "precision mediump float;" + "precision mediump float;"
@ -377,4 +440,8 @@ public class ExtrusionOverlay extends RenderOverlay {
+ "void main() {" + "void main() {"
+ " gl_FragColor = color;" + " gl_FragColor = color;"
+ "}"; + "}";
public void setAlpha(float a) {
mAlpha = a;
}
} }