Differential D18377 Diff 49854 effects/blur/blurshader.cpp

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effects/blur/blurshader.cpp

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86 // Fragment shader (Dual Kawase Blur) - Downsample 86​ // Fragment shader (Dual Kawase Blur) - Downsample
87 QTextStream streamFragDown(&fragmentDownSource); 87​ QTextStream streamFragDown(&fragmentDownSource);
88 88​
89 streamFragDown << glHeaderString << glUniformString; 89​ streamFragDown << glHeaderString << glUniformString;
90 90​
91 streamFragDown << "void main(void)\n"; 91​ streamFragDown << "void main(void)\n";
92 streamFragDown << "{\n"; 92​ streamFragDown << "{\n";
93 streamFragDown << " vec2 uv = vec2(gl_FragCoord.xy / renderTextureSize);\n"; 93​ streamFragDown << " vec2 uv = vec2(gl_FragCoord.xy / renderTextureSize);\n";
94​ streamFragDown << " const vec4 powVal = vec4(2, 2, 2, 2);\n";
94 streamFragDown << " \n"; 95​ streamFragDown << " \n";
95 streamFragDown << " vec4 sum = " << texture2D << "(texUnit, uv) * 4.0;\n"; 96​ streamFragDown << " vec4 sum = pow(" << texture2D << "(texUnit, uv) * 4.0, powVal);\n";
96 streamFragDown << " sum += " << texture2D << "(texUnit, uv - halfpixel.xy * offset);\n"; 97​ streamFragDown << " sum += pow(" << texture2D << "(texUnit, uv - halfpixel.xy * offset), powVal);\n";
97 streamFragDown << " sum += " << texture2D << "(texUnit, uv + halfpixel.xy * offset);\n"; 98​ streamFragDown << " sum += pow(" << texture2D << "(texUnit, uv + halfpixel.xy * offset), powVal);\n";
98 streamFragDown << " sum += " << texture2D << "(texUnit, uv + vec2(halfpixel.x, -halfpixel.y) * offset);\n"; 99​ streamFragDown << " sum += pow(" << texture2D << "(texUnit, uv + vec2(halfpixel.x, -halfpixel.y) * offset), powVal);\n";
99 streamFragDown << " sum += " << texture2D << "(texUnit, uv - vec2(halfpixel.x, -halfpixel.y) * offset);\n"; 100​ streamFragDown << " sum += pow(" << texture2D << "(texUnit, uv - vec2(halfpixel.x, -halfpixel.y) * offset), powVal);\n";
100 streamFragDown << " \n"; 101​ streamFragDown << " \n";
101 streamFragDown << " " << fragColor << " = sum / 8.0;\n"; 102​ streamFragDown << " " << fragColor << " = sqrt(sum) / 4.6;\n";
102 streamFragDown << "}\n"; 103​ streamFragDown << "}\n";
103 104​
104 streamFragDown.flush(); 105​ streamFragDown.flush();
105 106​
106 // Fragment shader (Dual Kawase Blur) - Upsample 107​ // Fragment shader (Dual Kawase Blur) - Upsample
107 QTextStream streamFragUp(&fragmentUpSource); 108​ QTextStream streamFragUp(&fragmentUpSource);
108 109​
109 streamFragUp << glHeaderString << glUniformString; 110​ streamFragUp << glHeaderString << glUniformString;
110 111​
111 streamFragUp << "void main(void)\n"; 112​ streamFragUp << "void main(void)\n";
112 streamFragUp << "{\n"; 113​ streamFragUp << "{\n";
113 streamFragUp << " vec2 uv = vec2(gl_FragCoord.xy / renderTextureSize);\n"; 114​ streamFragUp << " vec2 uv = vec2(gl_FragCoord.xy / renderTextureSize);\n";
115​ streamFragUp << " const vec4 powVal = vec4(2, 2, 2, 2);\n";
114 streamFragUp << " \n"; 116​ streamFragUp << " \n";
115 streamFragUp << " vec4 sum = " << texture2D << "(texUnit, uv + vec2(-halfpixel.x * 2.0, 0.0) * offset);\n"; 117​ streamFragUp << " vec4 sum = pow(" << texture2D << "(texUnit, uv + vec2(-halfpixel.x * 2.0, 0.0) * offset), powVal);\n";
116 streamFragUp << " sum += " << texture2D << "(texUnit, uv + vec2(-halfpixel.x, halfpixel.y) * offset) * 2.0;\n"; 118​ streamFragUp << " sum += pow(" << texture2D << "(texUnit, uv + vec2(-halfpixel.x, halfpixel.y) * offset) * 2.0, powVal);\n";
117 streamFragUp << " sum += " << texture2D << "(texUnit, uv + vec2(0.0, halfpixel.y * 2.0) * offset);\n"; 119​ streamFragUp << " sum += pow(" << texture2D << "(texUnit, uv + vec2(0.0, halfpixel.y * 2.0) * offset), powVal);\n";
118 streamFragUp << " sum += " << texture2D << "(texUnit, uv + vec2(halfpixel.x, halfpixel.y) * offset) * 2.0;\n"; 120​ streamFragUp << " sum += pow(" << texture2D << "(texUnit, uv + vec2(halfpixel.x, halfpixel.y) * offset) * 2.0, powVal);\n";
119 streamFragUp << " sum += " << texture2D << "(texUnit, uv + vec2(halfpixel.x * 2.0, 0.0) * offset);\n"; 121​ streamFragUp << " sum += pow(" << texture2D << "(texUnit, uv + vec2(halfpixel.x * 2.0, 0.0) * offset), powVal);\n";
120 streamFragUp << " sum += " << texture2D << "(texUnit, uv + vec2(halfpixel.x, -halfpixel.y) * offset) * 2.0;\n"; 122​ streamFragUp << " sum += pow(" << texture2D << "(texUnit, uv + vec2(halfpixel.x, -halfpixel.y) * offset) * 2.0, powVal);\n";
121 streamFragUp << " sum += " << texture2D << "(texUnit, uv + vec2(0.0, -halfpixel.y * 2.0) * offset);\n"; 123​ streamFragUp << " sum += pow(" << texture2D << "(texUnit, uv + vec2(0.0, -halfpixel.y * 2.0) * offset), powVal);\n";
122 streamFragUp << " sum += " << texture2D << "(texUnit, uv + vec2(-halfpixel.x, -halfpixel.y) * offset) * 2.0;\n"; 124​ streamFragUp << " sum += pow(" << texture2D << "(texUnit, uv + vec2(-halfpixel.x, -halfpixel.y) * offset) * 2.0, powVal);\n";
123 streamFragUp << " \n"; 125​ streamFragUp << " \n";
124 streamFragUp << " " << fragColor << " = sum / 12.0;\n"; 126​ streamFragUp << " " << fragColor << " = sqrt(sum) / 4.35;\n";
125 streamFragUp << "}\n"; 127​ streamFragUp << "}\n";
126 128​
127 streamFragUp.flush(); 129​ streamFragUp.flush();
128 130​
129 // Fragment shader - Copy texture 131​ // Fragment shader - Copy texture
130 QTextStream streamFragCopy(&fragmentCopySource); 132​ QTextStream streamFragCopy(&fragmentCopySource);
131 133​
132 streamFragCopy << glHeaderString; 134​ streamFragCopy << glHeaderString;
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156 streamFragNoise << "uniform vec2 noiseTextureSize;\n"; 158​ streamFragNoise << "uniform vec2 noiseTextureSize;\n";
157 streamFragNoise << "uniform vec2 texStartPos;\n"; 159​ streamFragNoise << "uniform vec2 texStartPos;\n";
158 160​
159 // Upsampling + Noise 161​ // Upsampling + Noise
160 streamFragNoise << "void main(void)\n"; 162​ streamFragNoise << "void main(void)\n";
161 streamFragNoise << "{\n"; 163​ streamFragNoise << "{\n";
162 streamFragNoise << " vec2 uv = vec2(gl_FragCoord.xy / renderTextureSize);\n"; 164​ streamFragNoise << " vec2 uv = vec2(gl_FragCoord.xy / renderTextureSize);\n";
163 streamFragNoise << " vec2 uvNoise = vec2((texStartPos.xy + gl_FragCoord.xy) / noiseTextureSize);\n"; 165​ streamFragNoise << " vec2 uvNoise = vec2((texStartPos.xy + gl_FragCoord.xy) / noiseTextureSize);\n";
166​ streamFragNoise << " const vec4 powVal = vec4(2, 2, 2, 2);\n";
164 streamFragNoise << " \n"; 167​ streamFragNoise << " \n";
165 streamFragNoise << " vec4 sum = " << texture2D << "(texUnit, uv + vec2(-halfpixel.x * 2.0, 0.0) * offset);\n"; 168​ streamFragNoise << " vec4 sum = pow(" << texture2D << "(texUnit, uv + vec2(-halfpixel.x * 2.0, 0.0) * offset), powVal);\n";
166 streamFragNoise << " sum += " << texture2D << "(texUnit, uv + vec2(-halfpixel.x, halfpixel.y) * offset) * 2.0;\n"; 169​ streamFragNoise << " sum += pow(" << texture2D << "(texUnit, uv + vec2(-halfpixel.x, halfpixel.y) * offset) * 2.0, powVal);\n";
167 streamFragNoise << " sum += " << texture2D << "(texUnit, uv + vec2(0.0, halfpixel.y * 2.0) * offset);\n"; 170​ streamFragNoise << " sum += pow(" << texture2D << "(texUnit, uv + vec2(0.0, halfpixel.y * 2.0) * offset), powVal);\n";
168 streamFragNoise << " sum += " << texture2D << "(texUnit, uv + vec2(halfpixel.x, halfpixel.y) * offset) * 2.0;\n"; 171​ streamFragNoise << " sum += pow(" << texture2D << "(texUnit, uv + vec2(halfpixel.x, halfpixel.y) * offset) * 2.0, powVal);\n";
169 streamFragNoise << " sum += " << texture2D << "(texUnit, uv + vec2(halfpixel.x * 2.0, 0.0) * offset);\n"; 172​ streamFragNoise << " sum += pow(" << texture2D << "(texUnit, uv + vec2(halfpixel.x * 2.0, 0.0) * offset), powVal);\n";
170 streamFragNoise << " sum += " << texture2D << "(texUnit, uv + vec2(halfpixel.x, -halfpixel.y) * offset) * 2.0;\n"; 173​ streamFragNoise << " sum += pow(" << texture2D << "(texUnit, uv + vec2(halfpixel.x, -halfpixel.y) * offset) * 2.0, powVal);\n";
171 streamFragNoise << " sum += " << texture2D << "(texUnit, uv + vec2(0.0, -halfpixel.y * 2.0) * offset);\n"; 174​ streamFragNoise << " sum += pow(" << texture2D << "(texUnit, uv + vec2(0.0, -halfpixel.y * 2.0) * offset), powVal);\n";
172 streamFragNoise << " sum += " << texture2D << "(texUnit, uv + vec2(-halfpixel.x, -halfpixel.y) * offset) * 2.0;\n"; 175​ streamFragNoise << " sum += pow(" << texture2D << "(texUnit, uv + vec2(-halfpixel.x, -halfpixel.y) * offset) * 2.0, powVal);\n";
173 streamFragNoise << " \n"; 176​ streamFragNoise << " \n";
174 streamFragNoise << " " << fragColor << " = sum / 12.0 - (vec4(0.5, 0.5, 0.5, 0) - vec4(" << texture2D << "(noiseTexUnit, uvNoise).rrr, 0));\n"; 177​ streamFragNoise << " " << fragColor << " = sqrt(sum) / 4.35 - (vec4(0.5, 0.5, 0.5, 0) - vec4(" << texture2D << "(noiseTexUnit, uvNoise).rrr, 0));\n";
175 streamFragNoise << "}\n"; 178​ streamFragNoise << "}\n";
176 179​
177 streamFragNoise.flush(); 180​ streamFragNoise.flush();
178 181​
179 m_shaderDownsample.reset(ShaderManager::instance()->loadShaderFromCode(vertexSource, fragmentDownSource)); 182​ m_shaderDownsample.reset(ShaderManager::instance()->loadShaderFromCode(vertexSource, fragmentDownSource));
180 m_shaderUpsample.reset(ShaderManager::instance()->loadShaderFromCode(vertexSource, fragmentUpSource)); 183​ m_shaderUpsample.reset(ShaderManager::instance()->loadShaderFromCode(vertexSource, fragmentUpSource));
181 m_shaderCopysample.reset(ShaderManager::instance()->loadShaderFromCode(vertexSource, fragmentCopySource)); 184​ m_shaderCopysample.reset(ShaderManager::instance()->loadShaderFromCode(vertexSource, fragmentCopySource));
182 m_shaderNoisesample.reset(ShaderManager::instance()->loadShaderFromCode(vertexSource, fragmentNoiseSource)); 185​ m_shaderNoisesample.reset(ShaderManager::instance()->loadShaderFromCode(vertexSource, fragmentNoiseSource));
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