diff --git a/src/gx/glsdl/GLSDLDevice.cpp b/src/gx/glsdl/GLSDLDevice.cpp
index 9bf1283..81bfa15 100644
--- a/src/gx/glsdl/GLSDLDevice.cpp
+++ b/src/gx/glsdl/GLSDLDevice.cpp
@@ -2468,8 +2468,26 @@ void GLSDLDevice::SetModelView(GLEnum transform) {
     }
 }
 
-void GLSDLDevice::SetScissor(bool a2, const GLRect& a3) {
-    // TODO
+void GLSDLDevice::SetScissor(bool enable, const GLRect& rect) {
+    if (enable) {
+        if (this->m_States.rasterizer.scissorEnable) {
+            glEnable(GL_SCISSOR_TEST);
+        }
+
+        if (rect.left   == this->m_States.rasterizer.scissor.left  &&
+            rect.top    == this->m_States.rasterizer.scissor.top   &&
+            rect.width  == this->m_States.rasterizer.scissor.width &&
+            rect.height == this->m_States.rasterizer.scissor.height) {
+            return;
+        }
+
+        glScissor(rect.left, rect.top, rect.width, rect.height);
+
+        this->m_States.rasterizer.scissor = rect;
+    } else if (this->m_States.rasterizer.scissorEnable) {
+        glDisable(GL_SCISSOR_TEST);
+        this->m_States.rasterizer.scissorEnable = false;
+    }
 }
 
 void GLSDLDevice::SetShader(GLShader::ShaderType shaderType, GLShader* shader) {
diff --git a/src/gx/glsdl/GLSDLDevice.hpp b/src/gx/glsdl/GLSDLDevice.hpp
index fd7cd1f..045199c 100644
--- a/src/gx/glsdl/GLSDLDevice.hpp
+++ b/src/gx/glsdl/GLSDLDevice.hpp
@@ -171,7 +171,7 @@ class GLSDLDevice {
         void SetIndexBuffer(GLBuffer* buffer);
         void SetLightingEnable(bool enable);
         void SetModelView(GLEnum transform);
-        void SetScissor(bool a2, const GLRect& a3);
+        void SetScissor(bool enable, const GLRect& rect);
         void SetShader(GLShader::ShaderType shaderType, GLShader* shader);
         void SetShaderConstants(GLShader::ShaderType shaderType, uint32_t index, const float* constants, uint32_t count);
         void SetShaderConstantsInternal(GLShader::ShaderType shaderType, uint32_t index, const float* constants, uint32_t count);