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don't clip glyphs with the frustum

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This commit is contained in:
Konstantin Käfer
2015-08-11 16:34:51 +03:00
parent 6d1c10dc18
commit e2fadf3157
2 changed files with 4 additions and 4 deletions
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2
src/mbgl/renderer/painter.cpp
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@@ -130,7 +130,7 @@ void Painter::lineWidth(float line_width) {
void Painter::changeMatrix() {
// Initialize projection matrix
matrix::ortho(projMatrix, 0, state.getWidth(), state.getHeight(), 0, 0, 1);
matrix::ortho(projMatrix, 0, state.getWidth(), state.getHeight(), 0, -1, 1);
// The extrusion matrix.
matrix::identity(extrudeMatrix);

6
src/mbgl/shader/sdf.vertex.glsl
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@@ -28,7 +28,7 @@ void main() {
float a_maxzoom = a_zoom[1];
// u_zoom is the current zoom level adjusted for the change in font size
float z = 2.0 - step(a_minzoom, u_zoom) - (1.0 - step(a_maxzoom, u_zoom));
float show = step(a_minzoom, u_zoom) * (1.0 - step(a_maxzoom, u_zoom));
// fade out labels
float alpha = clamp((u_fadezoom - a_labelminzoom) / u_fadedist, 0.0, 1.0);
@@ -46,8 +46,8 @@ void main() {
}
// if label has been faded out, clip it
z += step(v_alpha, 0.0);
show *= (1.0 - step(v_alpha, 0.0));
gl_Position = u_matrix * vec4(a_pos, 0, 1) + u_exmatrix * vec4(a_offset / 64.0, z, 0);
gl_Position = u_matrix * vec4(a_pos, 0, 1) + u_exmatrix * vec4(a_offset * show / 64.0, 0, 0);
v_tex = a_tex / u_texsize;
}