feat: complete first geodesic 3D raytracing

1 files changed, 23 insertions, 0 deletions

diff --git a/src/platform/opengl/opengl_renderer_api.cpp b/src/platform/opengl/opengl_renderer_api.cpp
index 628c0af..bfb79ac 100644
--- a/src/platform/opengl/opengl_renderer_api.cpp
+++ b/src/platform/opengl/opengl_renderer_api.cpp
@@ -83,4 +83,27 @@ namespace Donut
         glDrawElements(GL_TRIANGLES, count, GL_UNSIGNED_INT, nullptr);
         glBindTexture(GL_TEXTURE_2D, 0);
     }
+
+    void OpenGLRendererAPI::draw_arrays(uint32_t vertex_count, uint32_t first)
+    {
+        glDrawArrays(GL_TRIANGLES, first, vertex_count);
+    }
+
+    void OpenGLRendererAPI::draw_lines(const Ref<VertexArray>& vertex_array, uint32_t index_count)
+    {
+        uint32_t count = index_count ? index_count : vertex_array->get_index_buffer()->get_count();
+        glDrawElements(GL_LINES, count, GL_UNSIGNED_INT, nullptr);
+    }
+
+    void OpenGLRendererAPI::bind_texture(uint32_t texture_id, uint32_t slot)
+    {
+        glActiveTexture(GL_TEXTURE0 + slot);
+        glBindTexture(GL_TEXTURE_2D, texture_id);
+    }
+
+    void OpenGLRendererAPI::bind_image_texture(uint32_t texture_id, uint32_t slot, bool read_only)
+    {
+        glBindImageTexture(slot, texture_id, 0, GL_FALSE, 0, 
+                          read_only ? GL_READ_ONLY : GL_WRITE_ONLY, GL_RGBA8);
+    }
 };