*屏幕特效(post processing)

3 files changed, 14 insertions, 1 deletions

diff --git a/src/libjin/graphics/shaders/je_jsl_compiler.cpp b/src/libjin/graphics/shaders/je_jsl_compiler.cpp
index 8aacdd0..c5a004e 100644
--- a/src/libjin/graphics/shaders/je_jsl_compiler.cpp
+++ b/src/libjin/graphics/shaders/je_jsl_compiler.cpp
@@ -45,6 +45,7 @@ namespace JinEngine
             JinEngine::String SHADER_TEXTURE_COORDS = "jin_TextureCoords";
             JinEngine::String SHADER_VERTEX_COLOR = "jin_VertexColor";
             JinEngine::String SHADER_TIME = "jin_Time";
+            JinEngine::String SHADER_RENDERTARGET_SIZE = "jin_RenderTargetSize";
             JinEngine::String SHADER_VERSION = "#version 130 core \n";
             JinEngine::String SHADER_DEFINITIONS =
                 // Types
@@ -69,7 +70,8 @@ namespace JinEngine
                 "uniform Texture " + SHADER_MAIN_TEXTURE + "; \n"
                 "uniform mat4 " + SHADER_PROJECTION_MATRIX + "; \n"
                 "uniform mat4 " + SHADER_MODELVIEW_MATRIX + "; \n"
-                "uniform vec2 " + SHADER_TIME + "; \n";
+                "uniform vec2 " + SHADER_TIME + "; \n"
+                "uniform vec2 " + SHADER_RENDERTARGET_SIZE + "; \n";
 
             JinEngine::String JSLCompiler::formatVertexShader(const JinEngine::String& vert)
             {
diff --git a/src/libjin/graphics/shaders/je_jsl_compiler.h b/src/libjin/graphics/shaders/je_jsl_compiler.h
index 75c92cf..c61e152 100644
--- a/src/libjin/graphics/shaders/je_jsl_compiler.h
+++ b/src/libjin/graphics/shaders/je_jsl_compiler.h
@@ -23,6 +23,7 @@ namespace JinEngine
             extern JinEngine::String SHADER_TEXTURE_COORDS;
             extern JinEngine::String SHADER_VERTEX_COLOR;
             extern JinEngine::String SHADER_TIME;
+            extern JinEngine::String SHADER_RENDERTARGET_SIZE;
 
             ///
             /// Compile JSL into GLSL.
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;