disable mip-mapping for canvas texture

src/graphics/core/GLTexture.cpp

@@ -71,14 +71,20 @@ void GLTexture::setNearestFilter() {
     glBindTexture(GL_TEXTURE_2D, 0);
 }
 
-void GLTexture::setMipMapping(bool flag) {
+void GLTexture::setMipMapping(bool flag, bool pixelated) {
     bind();
     if (flag) {
         glTexParameteri(
-            GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST
+            GL_TEXTURE_2D,
+            GL_TEXTURE_MIN_FILTER,
+            pixelated ? GL_NEAREST : GL_LINEAR_MIPMAP_NEAREST
         );
     } else {
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+        glTexParameteri(
+            GL_TEXTURE_2D,
+            GL_TEXTURE_MIN_FILTER,
+            pixelated ? GL_NEAREST : GL_LINEAR
+        );
     }
     glBindTexture(GL_TEXTURE_2D, 0);
 }

src/graphics/core/GLTexture.hpp

@@ -18,7 +18,7 @@ public:
 
     virtual void reload(const ImageData& image) override;
 
-    virtual void setMipMapping(bool flag) override;
+    virtual void setMipMapping(bool flag, bool pixelated) override;
 
     virtual std::unique_ptr<ImageData> readData() override;
     virtual uint getId() const override;

src/graphics/core/Texture.hpp

@@ -34,7 +34,7 @@ public:
 
     virtual uint getId() const = 0;
 
-    virtual void setMipMapping(bool flag) = 0;
+    virtual void setMipMapping(bool flag, bool pixelated) = 0;
 
     static std::unique_ptr<Texture> from(const ImageData* image);
 };

src/graphics/render/PrecipitationRenderer.cpp

@@ -114,7 +114,7 @@ void PrecipitationRenderer::render(
 
     batch->begin();
     auto& texture = assets.require<Texture>(weather.fall.texture);
-    texture.setMipMapping(false);
+    texture.setMipMapping(false, true);
     batch->setTexture(&texture, {});
 
     const struct {