expose vbo

Author: markaren

include/threepp/renderers/GLRenderer.hpp

@@ -30,6 +30,7 @@ namespace threepp {
     class Material;
     class Texture;
     class GLRenderTarget;
+    class BufferAttribute;
 
     class GLRenderer {
 
@@ -167,6 +168,8 @@ namespace threepp {
 
         [[nodiscard]] std::optional<unsigned int> getGlTextureId(Texture& texture) const;
 
+        [[nodiscard]] std::optional<unsigned int> getGlBufferId(BufferAttribute& bufferAttribute) const;
+
         void writeFramebuffer(const std::filesystem::path& filename);
 
         ~GLRenderer();

src/threepp/renderers/GLRenderer.cpp

@@ -193,6 +193,11 @@ struct GLRenderer::Impl {
         return textures.getGlTexture(texture);
     }
 
+    [[nodiscard]] std::optional<unsigned int> getGlBufferId(BufferAttribute& attribute) const {
+
+        return attributes.get(&attribute).buffer;
+    }
+
     void deallocateMaterial(Material* material) {
 
         releaseMaterialProgramReferences(material);
@@ -1468,6 +1473,11 @@ std::optional<unsigned int> GLRenderer::getGlTextureId(Texture& texture) const {
     return pimpl_->getGlTextureId(texture);
 }
 
+std::optional<unsigned int> GLRenderer::getGlBufferId(BufferAttribute& buffer) const {
+
+    return pimpl_->getGlBufferId(buffer);
+}
+
 void GLRenderer::writeFramebuffer(const std::filesystem::path& filename) {
 
     pimpl_->writeFramebuffer(filename);