1 files changed, 10 insertions, 0 deletions
diff --git a/src/libjin/graphics/shaders/je_shader.cpp b/src/libjin/graphics/shaders/je_shader.cpp
index 5668168..4fa3b9e 100644
--- a/src/libjin/graphics/shaders/je_shader.cpp
+++ b/src/libjin/graphics/shaders/je_shader.cpp
@@ -8,6 +8,7 @@
 #include "../../utils/je_macros.h"
 
 #include "../je_gl.h"
+#include "../je_window.h"
 
 #include "je_jsl_compiler.h"
 #include "je_shader.h"
@@ -78,6 +79,15 @@ namespace JinEngine
                 // Send uniforms.
                 sendInt(SHADER_MAIN_TEXTURE, DEFAULT_TEXTURE_UNIT);
                 sendVec2(SHADER_TIME, Time::getSecond(), Time::getDeltaTime());
+                Canvas* rt = gl.getCanvas();
+                if (rt == OpenGL::DEFAULT_CANVAS)
+                {
+                    sendVec2(SHADER_RENDERTARGET_SIZE, Window::get()->getW(), Window::get()->getH());
+                }
+                else if(rt != nullptr)
+                {
+                    sendVec2(SHADER_RENDERTARGET_SIZE, rt->getWidth(), rt->getHeight());
+                }
                 // Reset attribute index.
                 mAttributeIndex = 0;
                 return *this;