diff --git a/Ryujinx.Graphics/Gal/IGalRasterizer.cs b/Ryujinx.Graphics/Gal/IGalRasterizer.cs index 45f92f27..e0469382 100644 --- a/Ryujinx.Graphics/Gal/IGalRasterizer.cs +++ b/Ryujinx.Graphics/Gal/IGalRasterizer.cs @@ -28,6 +28,6 @@ namespace Ryujinx.Graphics.Gal void DrawArrays(int First, int PrimCount, GalPrimitiveType PrimType); - void DrawElements(long IboKey, int First, GalPrimitiveType PrimType); + void DrawElements(long IboKey, int First, int VertexBase, GalPrimitiveType PrimType); } } \ No newline at end of file diff --git a/Ryujinx.Graphics/Gal/OpenGL/OGLRasterizer.cs b/Ryujinx.Graphics/Gal/OpenGL/OGLRasterizer.cs index ebd1e8d1..8bff6bb3 100644 --- a/Ryujinx.Graphics/Gal/OpenGL/OGLRasterizer.cs +++ b/Ryujinx.Graphics/Gal/OpenGL/OGLRasterizer.cs @@ -54,6 +54,7 @@ namespace Ryujinx.Graphics.Gal.OpenGL private struct IbInfo { public int Count; + public int ElemSizeLog2; public DrawElementsType Type; } @@ -206,6 +207,8 @@ namespace Ryujinx.Graphics.Gal.OpenGL IndexBuffer.Type = OGLEnumConverter.GetDrawElementsType(Format); IndexBuffer.Count = Size >> (int)Format; + + IndexBuffer.ElemSizeLog2 = (int)Format; } public void DrawArrays(int First, int PrimCount, GalPrimitiveType PrimType) @@ -220,7 +223,7 @@ namespace Ryujinx.Graphics.Gal.OpenGL GL.DrawArrays(OGLEnumConverter.GetPrimitiveType(PrimType), First, PrimCount); } - public void DrawElements(long IboKey, int First, GalPrimitiveType PrimType) + public void DrawElements(long IboKey, int First, int VertexBase, GalPrimitiveType PrimType) { if (!IboCache.TryGetValue(IboKey, out int IboHandle)) { @@ -233,7 +236,18 @@ namespace Ryujinx.Graphics.Gal.OpenGL GL.BindBuffer(BufferTarget.ElementArrayBuffer, IboHandle); - GL.DrawElements(Mode, IndexBuffer.Count, IndexBuffer.Type, First); + First <<= IndexBuffer.ElemSizeLog2; + + if (VertexBase != 0) + { + IntPtr Indices = new IntPtr(First); + + GL.DrawElementsBaseVertex(Mode, IndexBuffer.Count, IndexBuffer.Type, Indices, VertexBase); + } + else + { + GL.DrawElements(Mode, IndexBuffer.Count, IndexBuffer.Type, First); + } } } } \ No newline at end of file diff --git a/Ryujinx.HLE/Gpu/Engines/NvGpuEngine3d.cs b/Ryujinx.HLE/Gpu/Engines/NvGpuEngine3d.cs index 56cb7688..b27f5c14 100644 --- a/Ryujinx.HLE/Gpu/Engines/NvGpuEngine3d.cs +++ b/Ryujinx.HLE/Gpu/Engines/NvGpuEngine3d.cs @@ -487,7 +487,9 @@ namespace Ryujinx.HLE.Gpu.Engines if (IndexCount != 0) { - Gpu.Renderer.Rasterizer.DrawElements(IndexPosition, IndexFirst, PrimType); + int VertexBase = ReadRegister(NvGpuEngine3dReg.VertexArrayElemBase); + + Gpu.Renderer.Rasterizer.DrawElements(IndexPosition, IndexFirst, VertexBase, PrimType); } else {