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Diffstat (limited to '')
| -rw-r--r-- | src/video_core/renderer_opengl/gl_rasterizer.cpp | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/src/video_core/renderer_opengl/gl_rasterizer.cpp b/src/video_core/renderer_opengl/gl_rasterizer.cpp index 62ee45a36..fe78f4226 100644 --- a/src/video_core/renderer_opengl/gl_rasterizer.cpp +++ b/src/video_core/renderer_opengl/gl_rasterizer.cpp @@ -412,12 +412,14 @@ void RasterizerOpenGL::DrawArrays() { const GLenum primitive_mode{MaxwellToGL::PrimitiveTopology(regs.draw.topology)}; if (is_indexed) { - const GLint index_min{static_cast<GLint>(regs.index_array.first)}; - const GLint index_max{static_cast<GLint>(regs.index_array.first + regs.index_array.count)}; - glDrawRangeElementsBaseVertex(primitive_mode, index_min, index_max, regs.index_array.count, - MaxwellToGL::IndexFormat(regs.index_array.format), - reinterpret_cast<const void*>(index_buffer_offset), - -index_min); + const GLint base_vertex{static_cast<GLint>(regs.vb_element_base)}; + + // Adjust the index buffer offset so it points to the first desired index. + index_buffer_offset += regs.index_array.first * regs.index_array.FormatSizeInBytes(); + + glDrawElementsBaseVertex(primitive_mode, regs.index_array.count, + MaxwellToGL::IndexFormat(regs.index_array.format), + reinterpret_cast<const void*>(index_buffer_offset), base_vertex); } else { glDrawArrays(primitive_mode, 0, regs.vertex_buffer.count); } |