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@@ -38,6 +38,7 @@ bool g_isMouseDragging = false;
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// Shader programs
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///////////////////////////////////////////////////////////////////////////////
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GLuint backgroundProgram, shaderProgram, postFxShader;
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41
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+
GLuint verticalBlurShader = 0, horizontalBlurShader = 0, cutoffShader = 0;
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///////////////////////////////////////////////////////////////////////////////
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// Environment
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@@ -222,6 +223,12 @@ void initialize()
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"../lab5-rendertotexture/shading.frag");
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postFxShader = labhelper::loadShaderProgram("../lab5-rendertotexture/postFx.vert",
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"../lab5-rendertotexture/postFx.frag");
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horizontalBlurShader = labhelper::loadShaderProgram("../lab5-rendertotexture/postFx.vert",
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227
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"../lab5-rendertotexture/horizontal_blur.frag");
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228
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verticalBlurShader = labhelper::loadShaderProgram("../lab5-rendertotexture/postFx.vert",
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229
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"../lab5-rendertotexture/vertical_blur.frag");
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cutoffShader = labhelper::loadShaderProgram("../lab5-rendertotexture/postFx.vert",
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"../lab5-rendertotexture/cutoff.frag");
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///////////////////////////////////////////////////////////////////////////
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// Load environment map
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@@ -390,6 +397,32 @@ void display()
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// 2. Set postFxShader as active
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// 3. Bind the framebuffer to texture unit 0
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// 4. Draw a quad over the entire viewport
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400
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FboInfo& horizontalBlurFbo = fboList[3];
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401
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FboInfo& verticalBlurFbo = fboList[4];
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402
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if(currentEffect == PostProcessingEffect::Separable_blur)
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403
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{
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// horizontal blur
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glBindFramebuffer(GL_FRAMEBUFFER, horizontalBlurFbo.framebufferId);
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406
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glViewport(0, 0, horizontalBlurFbo.width, horizontalBlurFbo.height);
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407
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glClear(GL_DEPTH_BUFFER_BIT);
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glUseProgram(horizontalBlurShader);
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glActiveTexture(GL_TEXTURE0);
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411
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glBindTexture(GL_TEXTURE_2D, cameraFB.colorTextureTarget);
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412
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labhelper::drawFullScreenQuad();
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+
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// vertical blur
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glBindFramebuffer(GL_FRAMEBUFFER, verticalBlurFbo.framebufferId);
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glViewport(0, 0, verticalBlurFbo.width, verticalBlurFbo.height);
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glClear(GL_DEPTH_BUFFER_BIT);
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glUseProgram(verticalBlurShader);
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glActiveTexture(GL_TEXTURE0);
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422
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glBindTexture(GL_TEXTURE_2D, horizontalBlurFbo.colorTextureTarget);
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labhelper::drawFullScreenQuad();
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}
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// Task 4: Set the required uniforms
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glBindFramebuffer(GL_FRAMEBUFFER, 0);
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@@ -407,6 +440,8 @@ void display()
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glActiveTexture(GL_TEXTURE0);
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glBindTexture(GL_TEXTURE_2D, cameraFB.colorTextureTarget);
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glActiveTexture(GL_TEXTURE1);
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444
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glBindTexture(GL_TEXTURE_2D, verticalBlurFbo.colorTextureTarget);
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411
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labhelper::drawFullScreenQuad();
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@@ -81,7 +81,7 @@ void main()
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fragmentColor = textureRect(frameBufferTexture, mosaic(gl_FragCoord.xy));
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break;
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case 7:
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84
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-
fragmentColor =
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84
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+
fragmentColor = textureRect(blurredFrameBufferTexture, gl_FragCoord.xy);
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break;
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case 8:
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fragmentColor = vec4(0.0); // place holder
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