using Silk.NET.OpenGL; namespace DotRecast.Recast.Demo.Draw; public interface OpenGLDraw { void init(); void clear(); void begin(DebugDrawPrimitives prim, float size); void end(); void vertex(float x, float y, float z, int color); void vertex(float[] pos, int color); void vertex(float[] pos, int color, float[] uv); void vertex(float x, float y, float z, int color, float u, float v); void fog(bool state); void depthMask(bool state); void texture(GLCheckerTexture g_tex, bool state); void projectionMatrix(float[] projectionMatrix); void viewMatrix(float[] viewMatrix); void fog(float start, float end); }