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lcrs/frameguides.glsl

Created October 1, 2014 19:54
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frameguides.glsl
// frameguide
// Shader written by: Kyle Obley ([email protected]), Miles Essmiller & Ivar Beer
uniform sampler2D Source;
uniform float adsk_result_w, adsk_result_h, adsk_Source_frameratio, adsk_time;
uniform float ratio, let_blend, guide_blend, center_blend, size;
vec2 resolution = vec2(adsk_result_w, adsk_result_h);
float iGlobalTime = adsk_time;
uniform vec3 tint_action, tint_center;
uniform bool letterbox, guides, center, counter;
uniform vec2 position;
const float Thickness = 2.0;
float drawLine(vec2 p1, vec2 p2) {
vec2 uv_line = gl_FragCoord.xy / resolution.xy;
float a = abs(distance(p1, uv_line));
float b = abs(distance(p2, uv_line));
float c = abs(distance(p1, p2));
if ( a >= c || b >= c ) return 0.0;
float p = (a + b + c) * 0.5;
float h = 2. / c * sqrt( p * ( p - a) * ( p - b) * ( p - c));
return mix(1.0, 0.0, smoothstep(0.5 * Thickness * 0.001 , 1.5 * Thickness * 0.001, h * adsk_Source_frameratio));
}
// https://www.shadertoy.com/view/4sf3RN
// Number Printing - @P_Malin
// License Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
const float kCharBlank = 12.0;
const float kCharMinus = 11.0;
const float kCharDecimalPoint = 10.0;
float InRect(const in vec2 vUV, const in vec4 vRect)
{
vec2 vTestMin = step(vRect.xy, vUV.xy);
vec2 vTestMax = step(vUV.xy, vRect.zw);
vec2 vTest = vTestMin * vTestMax;
return vTest.x * vTest.y;
}
float SampleDigit(const in float fDigit, const in vec2 vUV)
{
if(vUV.x < 0.0) return 0.0;
if(vUV.y < 0.0) return 0.0;
if(vUV.x >= 1.0) return 0.0;
if(vUV.y >= 1.0) return 0.0;
// In this version, each digit is made up of a 4x5 array of bits
float fDigitBinary = 0.0;
if(fDigit < 0.5) // 0
{
fDigitBinary = 7.0 + 5.0 * 16.0 + 5.0 * 256.0 + 5.0 * 4096.0 + 7.0 * 65536.0;
}
else if(fDigit < 1.5) // 1
{
fDigitBinary = 2.0 + 2.0 * 16.0 + 2.0 * 256.0 + 2.0 * 4096.0 + 2.0 * 65536.0;
}
else if(fDigit < 2.5) // 2
{
fDigitBinary = 7.0 + 1.0 * 16.0 + 7.0 * 256.0 + 4.0 * 4096.0 + 7.0 * 65536.0;
}
else if(fDigit < 3.5) // 3
{
fDigitBinary = 7.0 + 4.0 * 16.0 + 7.0 * 256.0 + 4.0 * 4096.0 + 7.0 * 65536.0;
}
else if(fDigit < 4.5) // 4
{
fDigitBinary = 4.0 + 7.0 * 16.0 + 5.0 * 256.0 + 1.0 * 4096.0 + 1.0 * 65536.0;
}
else if(fDigit < 5.5) // 5
{
fDigitBinary = 7.0 + 4.0 * 16.0 + 7.0 * 256.0 + 1.0 * 4096.0 + 7.0 * 65536.0;
}
else if(fDigit < 6.5) // 6
{
fDigitBinary = 7.0 + 5.0 * 16.0 + 7.0 * 256.0 + 1.0 * 4096.0 + 7.0 * 65536.0;
}
else if(fDigit < 7.5) // 7
{
fDigitBinary = 4.0 + 4.0 * 16.0 + 4.0 * 256.0 + 4.0 * 4096.0 + 7.0 * 65536.0;
}
else if(fDigit < 8.5) // 8
{
fDigitBinary = 7.0 + 5.0 * 16.0 + 7.0 * 256.0 + 5.0 * 4096.0 + 7.0 * 65536.0;
}
else if(fDigit < 9.5) // 9
{
fDigitBinary = 7.0 + 4.0 * 16.0 + 7.0 * 256.0 + 5.0 * 4096.0 + 7.0 * 65536.0;
}
else if(fDigit < 10.5) // '.'
{
fDigitBinary = 2.0 + 0.0 * 16.0 + 0.0 * 256.0 + 0.0 * 4096.0 + 0.0 * 65536.0;
}
else if(fDigit < 11.5) // '-'
{
fDigitBinary = 0.0 + 0.0 * 16.0 + 7.0 * 256.0 + 0.0 * 4096.0 + 0.0 * 65536.0;
}
vec2 vPixel = floor(vUV * vec2(4.0, 5.0));
float fIndex = vPixel.x + (vPixel.y * 4.0);
return mod(floor(fDigitBinary / pow(2.0, fIndex)), 2.0);
}
float PrintValue(const in vec2 vStringCharCoords, const in float fValue, const in float fMaxDigits, const in float fDecimalPlaces)
{
float fAbsValue = abs(fValue);
float fStringCharIndex = floor(vStringCharCoords.x);
float fLog10Value = log2(fAbsValue) / log2(10.0);
float fBiggestDigitIndex = max(floor(fLog10Value), 0.0);
// This is the character we are going to display for this pixel
float fDigitCharacter = kCharBlank;
float fDigitIndex = fMaxDigits - fStringCharIndex;
if(fDigitIndex > (-fDecimalPlaces - 1.5))
{
if(fDigitIndex > fBiggestDigitIndex)
{
if(fValue < 0.0)
{
if(fDigitIndex < (fBiggestDigitIndex+1.5))
{
fDigitCharacter = kCharMinus;
}
}
}
else
{
if(fDigitIndex == -1.0)
{
if(fDecimalPlaces > 0.0)
{
fDigitCharacter = kCharDecimalPoint;
}
}
else
{
if(fDigitIndex < 0.0)
{
// move along one to account for .
fDigitIndex += 1.0;
}
float fDigitValue = (fAbsValue / (pow(10.0, fDigitIndex)));
// This is inaccurate - I think because I treat each digit independently
// The value 2.0 gets printed as 2.09 :/
//fDigitCharacter = mod(floor(fDigitValue), 10.0);
fDigitCharacter = mod(floor(0.0001+fDigitValue), 10.0); // fix from iq
}
}
}
vec2 vCharPos = vec2(fract(vStringCharCoords.x), vStringCharCoords.y);
return SampleDigit(fDigitCharacter, vCharPos);
}
float PrintValue(const in vec2 vPixelCoords, const in vec2 vFontSize, const in float fValue, const in float fMaxDigits, const in float fDecimalPlaces)
{
return PrintValue(((gl_FragCoord.xy) - vPixelCoords) / vFontSize, fValue, fMaxDigits, fDecimalPlaces);
}
void main()
{
vec2 uv = gl_FragCoord.xy / resolution.xy;
vec3 source = vec3(texture2D(Source, uv).rgb);
vec4 c_let = vec4(0.0);
vec4 c_guide= vec4(0.0);
vec3 center_alpha = vec3(0.0);
vec3 guide_alpha = vec3(0.0);
vec3 c_col = vec3(0.0);
vec4 fin_col = vec4(source, 1.0);
// Letterbox
if ( letterbox )
{
float lb = ((adsk_result_w / ratio) / adsk_result_h) / 2.;
float dist_y = length(uv.y - 0.5);
float letterbox = smoothstep(lb, lb, dist_y);
fin_col.rgb = mix(fin_col.rgb, vec3(0.0), letterbox * let_blend);
}
// draw center
if ( center )
{
center_alpha += vec3(max(drawLine(vec2(0.47, 0.5), vec2(0.53, 0.5)), drawLine (vec2(0.5, 0.47), vec2(0.5, 0.53))));
}
// draw action safe
if ( guides )
{
guide_alpha += vec3(max(drawLine(vec2(0.05, 0.05), vec2(0.05, 0.95)), drawLine (vec2(0.95, 0.05), vec2(0.95, 0.95))));
guide_alpha += vec3(max(drawLine(vec2(0.05, 0.05), vec2(0.95, 0.05)), drawLine (vec2(0.05, 0.95), vec2(0.95, 0.95))));
// draw title safe
guide_alpha += vec3(max(drawLine(vec2(0.1, 0.1), vec2(0.1, 0.9)), drawLine (vec2(0.9, 0.1), vec2(0.9, 0.9))));
guide_alpha += vec3(max(drawLine(vec2(0.1, 0.1), vec2(0.9, 0.1)), drawLine (vec2(0.1, 0.9), vec2(0.9, 0.9))));
}
// frame counter
if ( counter )
{
vec2 vFontSize = vec2(8.0 * size, 15.0 * size);
float fValue2 = adsk_time;
float fDigits = 7.0;
float fDecimalPlaces = 0.0;
float fIsDigit2 = PrintValue(position*resolution, vFontSize, fValue2, fDigits, fDecimalPlaces);
c_col = mix( c_col, vec3(1.0, 1.0, 1.0), fIsDigit2);
}
// clamp before composite
guide_alpha = clamp(guide_alpha, 0.0, 1.0);
center_alpha = clamp(center_alpha, 0.0, 1.0);
fin_col.rgb = mix(fin_col.rgb, tint_action, guide_alpha * guide_blend);
fin_col.rgb = mix(fin_col.rgb, tint_center, center_alpha * center_blend);
fin_col.rgb = mix(fin_col.rgb, c_col, c_col);
gl_FragColor = vec4(fin_col);
}
Raw
frameguides.xml
<ShaderNodePreset SupportsAdaptiveDegradation="0" Description="" Name="frameguides">
<Shader OutputBitDepth="Output" Index="1">
<Uniform Index="0" NoInput="Error" Tooltip="" DisplayName="Source" Mipmaps="False" GL_TEXTURE_WRAP_T="GL_REPEAT" GL_TEXTURE_WRAP_S="GL_REPEAT" GL_TEXTURE_MAG_FILTER="GL_NEAREST" GL_TEXTURE_MIN_FILTER="GL_NEAREST" Type="sampler2D" Name="Source">
</Uniform>
<Uniform Row="0" Col="0" Page="0" Default="True" Tooltip="" DisplayName="Enable" Type="bool" Name="letterbox">
</Uniform>
<Uniform ResDependent="None" Max="10.0" Min="1.0" Default="2.39" Inc="0.01" Tooltip="" Row="1" Col="0" Page="0" DisplayName="Aspect Ratio" Type="float" Name="ratio">
</Uniform>
<Uniform ResDependent="None" Max="1.0" Min="0.0" Default="1.0" Inc="0.01" Tooltip="" Row="2" Col="0" Page="0" DisplayName="Blend" Type="float" Name="let_blend">
</Uniform>
<Uniform Row="0" Col="1" Page="0" Default="True" Tooltip="" DisplayName="Enable" Type="bool" Name="guides">
</Uniform>
<Uniform Inc="0.01" Tooltip="" Row="1" Col="1" Page="0" DisplayName="Colour" ValueType="Colour" Type="vec3" Name="tint_action">
<SubUniform ResDependent="None" Max="1000000.0" Min="-1000000.0" Default="0.0">
</SubUniform>
<SubUniform ResDependent="None" Max="1000000.0" Min="-1000000.0" Default="1.0">
</SubUniform>
<SubUniform ResDependent="None" Max="1000000.0" Min="-1000000.0" Default="0.0">
</SubUniform>
</Uniform>
<Uniform ResDependent="None" Max="1.0" Min="0.0" Default="1.0" Inc="0.01" Tooltip="" Row="2" Col="1" Page="0" DisplayName="Blend" Type="float" Name="guide_blend">
</Uniform>
<Uniform Row="0" Col="2" Page="0" Default="True" Tooltip="" DisplayName="Center" Type="bool" Name="center">
</Uniform>
<Uniform Inc="0.01" Tooltip="" Row="1" Col="2" Page="0" DisplayName="Colour" ValueType="Colour" Type="vec3" Name="tint_center">
<SubUniform ResDependent="None" Max="1000000.0" Min="-1000000.0" Default="1.0">
</SubUniform>
<SubUniform ResDependent="None" Max="1000000.0" Min="-1000000.0" Default="0.0">
</SubUniform>
<SubUniform ResDependent="None" Max="1000000.0" Min="-1000000.0" Default="0.0">
</SubUniform>
</Uniform>
<Uniform ResDependent="None" Max="1000000.0" Min="-1000000.0" Default="1.0" Inc="0.01" Tooltip="" Row="2" Col="2" Page="0" DisplayName="Blend" Type="float" Name="center_blend">
</Uniform>
<Uniform Row="0" Col="3" Page="0" Default="True" Tooltip="" DisplayName="Frame Counter" Type="bool" Name="counter">
</Uniform>
<Uniform Inc="0.010" Tooltip="" Row="1" Col="3" Page="0" DisplayName="Position" Type="vec2" Name="position">
<SubUniform ResDependent="None" Max="1000000.0" Min="-1000000.0" Default="0.78">
</SubUniform>
<SubUniform ResDependent="None" Max="1000000.0" Min="-1000000.0" Default="0.13">
</SubUniform>
</Uniform>
<Uniform ResDependent="Width" Max="10.0" Min="1.0" Default="3.0" Inc="0.01" Tooltip="" Row="3" Col="3" Page="0" DisplayName="Size" Type="float" Name="size">
</Uniform>
</Shader>
<Page Name="" Page="0">
<Col Name="Letterbox" Col="0" Page="0">
</Col>
<Col Name="Guides" Col="1" Page="0">
</Col>
<Col Name="Center" Col="2" Page="0">
</Col>
<Col Name="Counter" Col="3" Page="0">
</Col>
</Page>
</ShaderNodePreset>
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