Merge pull request #888 from MihailRis/3d-text-font-property

3d text font property

doc/en/3d-text.md

@@ -4,14 +4,15 @@
 
 The appearance of 3D text, is configured via a table, like [particles](particles.md). All fields are optional.
 
-| Field           | Description                  | Default          |
+| Field           | Description                              | Default          |
-| --------------- | ---------------------------- | ---------------- |
+| --------------- | ---------------------------------------- | ---------------- |
-| display         | Display format               | static_billboard |
+| display         | Display format                           | static_billboard |
-| color           | Text color                   | {1, 1, 1, 1}     |
+| color           | Text color                               | {1, 1, 1, 1}     |
-| scale           | Text scale                   | 1                |
+| scale           | Text scale                               | 1                |
-| render_distance | Text rendering distance      | 32               |
+| render_distance | Text rendering distance                  | 32               |
-| xray_opacity    | Visibility through obstacles | 0                |
+| xray_opacity    | Visibility through obstacles             | 0                |
-| perspective     | Perspective coefficient      | 1                |
+| perspective     | Perspective coefficient                  | 1                |
+| font            | Font. If absent, the default one is used | ""               |
 
 Available display formats:
 

doc/ru/3d-text.md

@@ -12,6 +12,7 @@
 | render_distance | Дистанция отрисовки текста                              | 32                |
 | xray_opacity    | Коэффициент видимости через препятствия (просвечивание) | 0                 |
 | perspective     | Коэффициент перспективы                                 | 1                 |
+| font            | Шрифт. При отсутствии используется основной             | ""                |
 
 Доступные форматы отображения:
 

src/graphics/core/Font.cpp

@@ -162,6 +162,8 @@ static inline void draw_text(
     const FontStylesScheme* styles,
     size_t styleMapOffset
 ) {
+    bool is3d = std::is_same<Batch, Batch3D>();
+
     static FontStylesScheme defStyles {{{}}, {0}};
 
     if (styles == nullptr) {
@@ -194,13 +196,26 @@ static inline void draw_text(
             float advance = baseAdvance;
             if (auto glyph = font.getGlyph(c)) {
                 yOffset = glyph->yOffset;
-                advance = glyph->xAdvance;
+                advance = glyph->xAdvance /
+                          static_cast<float>(font.getLineHeight()) * 2.0f *
+                          baseAdvance;
             }
             uint charpage = c >> 8;
             if (charpage == page){
                 batch.texture(font.getPage(charpage));
                 draw_glyph(
-                    batch, pos, glm::vec2(x, y - yOffset / static_cast<float>(font.getLineHeight())), c, right, up, interval, style
+                    batch,
+                    pos,
+                    glm::vec2(
+                        x,
+                        y - yOffset * (is3d ? -1 : 1) /
+                                static_cast<float>(font.getLineHeight())
+                    ),
+                    c,
+                    right,
+                    up,
+                    interval,
+                    style
                 );
             }
             else if (charpage > page && charpage < next){

src/graphics/render/TextsRenderer.cpp

@@ -58,7 +58,10 @@ void TextsRenderer::renderNote(
         }
         opacity = preset.xrayOpacity;
     }
-    auto& font = assets.require<Font>(FONT_DEFAULT);
+
+    auto specifiedFont = assets.get<Font>(preset.font);
+    auto& font =
+        specifiedFont ? *specifiedFont : assets.require<Font>(FONT_DEFAULT);
 
     glm::vec3 xvec = note.getAxisX();
     glm::vec3 yvec = note.getAxisY();
@@ -76,7 +79,10 @@ void TextsRenderer::renderNote(
             yvec = camera.up;
         }
         float scale =
-            (1.0f - preset.perspective) * glm::pow(glm::distance(camera.position, pos), 1.0f-preset.perspective);
+            (1.0f - preset.perspective) *
+            glm::pow(
+                glm::distance(camera.position, pos), 1.0f - preset.perspective
+            );
         xvec *= 1.0f + scale;
         yvec *= 1.0f + scale;
     }
@@ -118,6 +124,7 @@ void TextsRenderer::renderNote(
     }
     auto color = preset.color;
     batch.setColor(glm::vec4(color.r, color.g, color.b, color.a * opacity));
+
     font.draw(
         batch,
         text,

src/presets/NotePreset.cpp

@@ -13,6 +13,7 @@ dv::value NotePreset::serialize() const {
         {"render_distance", renderDistance},
         {"xray_opacity", xrayOpacity},
         {"perspective", perspective},
+        {"font", font},
     });
 }
 
@@ -27,4 +28,5 @@ void NotePreset::deserialize(const dv::value& src) {
     src.at("render_distance").get(renderDistance);
     src.at("xray_opacity").get(xrayOpacity);
     src.at("perspective").get(perspective);
+    src.at("font").get(font);
 }

src/presets/NotePreset.hpp

@@ -28,6 +28,7 @@ struct NotePreset : public Serializable {
     float renderDistance = 32.0f;
     float xrayOpacity = 0.0f;
     float perspective = 1.0f;
+    std::string font {};
 
     dv::value serialize() const override;
     void deserialize(const dv::value& src) override;