Shaders - Relative paths
Shaders are no longer found under /shaders in the project; they can be anywhere. In addition, paths for both (program) instructions in the script and include directives in shader source code are relative to the file which contains them.
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41 changed files with 198 additions and 132 deletions
20
test/fx-bloom/bloom-highpass.f.glsl
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test/fx-bloom/bloom-highpass.f.glsl
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#version 450 core
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//! type fragment
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layout( location = 0 ) uniform sampler2D u_Input;
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layout( location = 1 ) uniform int u_LOD;
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layout( location = 2 ) uniform vec2 u_InputSize;
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layout( location = 3 ) uniform vec3 u_FilterParams;
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layout( location = 0 ) out vec3 color;
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void main( void )
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{
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const vec3 c = textureLod( u_Input ,
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gl_FragCoord.xy / u_InputSize.xy , u_LOD ).xyz;
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color = max( vec3( 0 ) ,
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( pow( c , vec3( u_FilterParams.x ) ) * u_FilterParams.y - c )
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* u_FilterParams.z );
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}
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29
test/fx-bloom/blur-pass.f.glsl
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test/fx-bloom/blur-pass.f.glsl
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#version 450 core
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//! type fragment
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layout( location = 0 ) uniform sampler2D u_InputTexture;
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layout( location = 1 ) uniform vec2 u_OutputSize;
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layout( location = 2 ) uniform int u_SourceLOD;
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layout( location = 3 ) uniform vec2 u_Direction;
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layout( location = 4 ) uniform vec4 u_Weights;
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layout( location = 0 ) out vec3 color;
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void main( void )
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{
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vec2 tmp = gl_FragCoord.xy / u_OutputSize;
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vec2 disp = u_Direction / u_OutputSize;
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color = u_Weights.x * textureLod( u_InputTexture , tmp , u_SourceLOD ).xyz
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+ u_Weights.y * (
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textureLod( u_InputTexture , tmp + disp , u_SourceLOD ).xyz
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+ textureLod( u_InputTexture , tmp - disp , u_SourceLOD ).xyz )
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+ u_Weights.z * (
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textureLod( u_InputTexture , tmp + disp * 2 , u_SourceLOD ).xyz
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+ textureLod( u_InputTexture , tmp - disp * 2 , u_SourceLOD ).xyz )
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+ u_Weights.w * (
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textureLod( u_InputTexture , tmp + disp * 3 , u_SourceLOD ).xyz
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+ textureLod( u_InputTexture , tmp - disp * 3 , u_SourceLOD ).xyz )
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;
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color /= u_Weights.x + 2 * ( u_Weights.y + u_Weights.z + u_Weights.w );
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}
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20
test/fx-bloom/downsample.f.glsl
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test/fx-bloom/downsample.f.glsl
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#version 450 core
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//! type fragment
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layout( location = 0 ) uniform sampler2D u_InputTexture;
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layout( location = 1 ) uniform vec2 u_OutputSize;
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layout( location = 2 ) uniform int u_SourceLOD;
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layout( location = 0 ) out vec3 color;
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void main( void )
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{
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const vec2 c = gl_FragCoord.xy;
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color = ( .25 * (
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textureLod( u_InputTexture , ( c + vec2( .5 , .5 ) ) / u_OutputSize , u_SourceLOD )
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+ textureLod( u_InputTexture , ( c + vec2(-.5 , .5 ) ) / u_OutputSize , u_SourceLOD )
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+ textureLod( u_InputTexture , ( c + vec2( .5 ,-.5 ) ) / u_OutputSize , u_SourceLOD )
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+ textureLod( u_InputTexture , ( c + vec2(-.5 ,-.5 ) ) / u_OutputSize , u_SourceLOD )
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) ).rgb;
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}
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167
test/fx-bloom/fx-bloom.srd
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test/fx-bloom/fx-bloom.srd
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################################################################################
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# Bloom
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(fn bloom-init ()
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# Samplers
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(sampler smp-bloom-blur
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(sampling linear)
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(mipmaps linear)
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(lod 0 100)
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(wrapping clamp-edge)
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)
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(sampler smp-bloom-input
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(sampling nearest)
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)
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# First ping/pong texture & targets
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(texture tx-bloom1 rgb-f16 $vp-width $vp-height 6)
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(framebuffer rt-bloom1-lod0 (color tx-bloom1 0))
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(framebuffer rt-bloom1-lod1 (color tx-bloom1 1))
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(framebuffer rt-bloom1-lod2 (color tx-bloom1 2))
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(framebuffer rt-bloom1-lod3 (color tx-bloom1 3))
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(framebuffer rt-bloom1-lod4 (color tx-bloom1 4))
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(framebuffer rt-bloom1-lod5 (color tx-bloom1 5))
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(odbg tx-bloom1 hdr "Bloom")
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# Second ping/pong texture & targets
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(texture tx-bloom2 rgb-f16 $vp-width $vp-height 6)
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(framebuffer rt-bloom2-lod0 (color tx-bloom2 0))
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(framebuffer rt-bloom2-lod1 (color tx-bloom2 1))
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(framebuffer rt-bloom2-lod2 (color tx-bloom2 2))
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(framebuffer rt-bloom2-lod3 (color tx-bloom2 3))
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(framebuffer rt-bloom2-lod4 (color tx-bloom2 4))
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(framebuffer rt-bloom2-lod5 (color tx-bloom2 5))
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(odbg tx-bloom2 hdr "Bloom (partial)")
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# High pass program
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(program prg-bloom-highpass "bloom-highpass.f.glsl")
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(pipeline pl-bloom-highpass prg-fullscreen prg-bloom-highpass)
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# Downsampling program
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(program prg-bloom-downsample "downsample.f.glsl")
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(pipeline pl-bloom-downsample prg-fullscreen prg-bloom-downsample)
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# Blur pass
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(program prg-bloom-blur "blur-pass.f.glsl")
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(pipeline pl-bloom-blur prg-fullscreen prg-bloom-blur)
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# Inputs that control the high pass filter
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(input bloom-power 1.6)
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(input bloom-factor 1.2)
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(input bloom-output-factor 1.05)
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# Inputs that control the blur weights
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(input bloom-bw0 .324)
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(input bloom-bw1 .232)
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(input bloom-bw2 .0855)
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(input bloom-bw3 .0205)
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# Blur size
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(input bloom-blur-size 1.3)
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# Input overrides
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(ui-overrides
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(section "Post-processing"
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(section "Bloom"
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(section "Input filter"
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(float "Input power" bloom-power
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(min .5) (max 4) (slider))
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(float "Input factor" bloom-factor
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(min .5) (max 4) (slider))
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(float "Output factor" bloom-output-factor
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(min .5) (max 4) (slider))
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)
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(section "Blur"
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(float "Size" bloom-blur-size
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(min .5) (max 4) (slider))
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(float4 "Weights"
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bloom-bw0 bloom-bw1 bloom-bw2 bloom-bw3
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(min 0) (max 1) (step .00005))
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)
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)
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)
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)
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)
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(fn bloom-render (in-scene)
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(profiling "BLOOOOM!"
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(uniforms-i prg-bloom-highpass 0 0)
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(uniforms-i prg-bloom-highpass 1 0)
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(uniforms prg-bloom-highpass 2 $vp-width $vp-height)
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(uniforms-i prg-bloom-downsample 0 0)
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(uniforms-i prg-bloom-blur 0 0)
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# High pass
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(use-texture 0 in-scene smp-bloom-input)
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(uniforms prg-bloom-highpass 3
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(get-input bloom-power)
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(get-input bloom-factor)
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(get-input bloom-output-factor)
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)
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(use-framebuffer rt-bloom1-lod0)
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(use-pipeline pl-bloom-highpass)
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(viewport 0 0 $vp-width $vp-height)
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(fullscreen)
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# Set up blur weights
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(uniforms prg-bloom-blur 4
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(get-input bloom-bw0)
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(get-input bloom-bw1)
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(get-input bloom-bw2)
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(get-input bloom-bw3))
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# Blur & downsample
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(uniforms prg-bloom-blur 1 $vp-width $vp-height)
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(call bloom-blur-pass 0 rt-bloom1-lod0 rt-bloom2-lod0)
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(call bloom-downsample rt-bloom1-lod1 1)
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(call bloom-blur-pass 1 rt-bloom1-lod1 rt-bloom2-lod1)
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(call bloom-downsample rt-bloom1-lod2 2)
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(call bloom-blur-pass 2 rt-bloom1-lod2 rt-bloom2-lod2)
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(call bloom-downsample rt-bloom1-lod3 3)
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(call bloom-blur-pass 3 rt-bloom1-lod3 rt-bloom2-lod3)
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(call bloom-downsample rt-bloom1-lod4 4)
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(call bloom-blur-pass 4 rt-bloom1-lod4 rt-bloom2-lod4)
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(call bloom-downsample rt-bloom1-lod5 5)
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(call bloom-blur-pass 5 rt-bloom1-lod5 rt-bloom2-lod5)
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)
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)
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(fn bloom-downsample (target level)
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(locals m w h)
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(set m (pow 2 $level))
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(set w (div $vp-width $m))
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(set h (div $vp-height $m))
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(use-pipeline pl-bloom-downsample)
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(use-framebuffer target)
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(use-texture 0 tx-bloom1 smp-bloom-blur)
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(uniforms prg-bloom-downsample 1 $w $h)
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(uniforms-i prg-bloom-downsample 2 (sub $level 1))
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(viewport 0 0 $w $h)
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(fullscreen)
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(uniforms prg-bloom-blur 1 $w $h)
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)
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(fn bloom-blur-pass (lod fb1 fb2)
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# Common stuff for both passes
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(use-pipeline pl-bloom-blur)
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(uniforms-i prg-bloom-blur 2 $lod)
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# Pass 1
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(use-framebuffer fb2)
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(use-texture 0 tx-bloom1 smp-bloom-blur)
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(uniforms prg-bloom-blur 3
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(get-input bloom-blur-size) 0)
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(fullscreen)
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# Pass 2
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(use-framebuffer fb1)
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(use-texture 0 tx-bloom2 smp-bloom-blur)
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(uniforms prg-bloom-blur 3
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0 (get-input bloom-blur-size))
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(fullscreen)
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)
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# vim: syntax=demo-srd
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