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Use the MATLAB Jet colormap for displaying depth data.

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This commit is contained in:
Paul Chote
2016-08-27 23:08:41 +01:00
parent 84d58f78d2
commit d1b7d0e0fb
3 changed files with 60 additions and 6 deletions
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22
glsl/color.frag
View File

@@ -1,6 +1,21 @@
varying vec4 vColor;
uniform bool EnableDepthPreview;
float jet_r(float x)
{
return x < 0.7 ? 4.0 * x - 1.5 : -4.0 * x + 4.5;
}
float jet_g(float x)
{
return x < 0.5 ? 4.0 * x - 0.5 : -4.0 * x + 3.5;
}
float jet_b(float x)
{
return x < 0.3 ? 4.0 * x + 0.5 : -4.0 * x + 2.5;
}
void main()
{
float depth = gl_FragCoord.z;
@@ -10,8 +25,11 @@ void main()
if (EnableDepthPreview)
{
// Front of the depth buffer is at 0, but we want to render it as bright
gl_FragColor = vec4(vec3(1.0 - gl_FragDepth), 1.0);
float x = 1.0 - gl_FragDepth;
float r = clamp(jet_r(x), 0.0, 1.0);
float g = clamp(jet_g(x), 0.0, 1.0);
float b = clamp(jet_b(x), 0.0, 1.0);
gl_FragColor = vec4(r, g, b, 1.0);
}
else
gl_FragColor = vColor;

22
glsl/rgba.frag
View File

@@ -3,6 +3,21 @@ uniform bool EnableDepthPreview;
varying vec4 vTexCoord;
float jet_r(float x)
{
return x < 0.7 ? 4.0 * x - 1.5 : -4.0 * x + 4.5;
}
float jet_g(float x)
{
return x < 0.5 ? 4.0 * x - 0.5 : -4.0 * x + 3.5;
}
float jet_b(float x)
{
return x < 0.3 ? 4.0 * x + 0.5 : -4.0 * x + 2.5;
}
void main()
{
vec4 c = texture2D(DiffuseTexture, vTexCoord.st);
@@ -17,8 +32,11 @@ void main()
if (EnableDepthPreview)
{
// Front of the depth buffer is at 0, but we want to render it as bright
gl_FragColor = vec4(vec3(1.0 - gl_FragDepth), 1.0);
float x = 1.0 - gl_FragDepth;
float r = clamp(jet_r(x), 0.0, 1.0);
float g = clamp(jet_g(x), 0.0, 1.0);
float b = clamp(jet_b(x), 0.0, 1.0);
gl_FragColor = vec4(r, g, b, 1.0);
}
else
gl_FragColor = c;

22
glsl/shp.frag
View File

@@ -8,6 +8,21 @@ varying vec2 vTexMetadata;
varying vec4 vChannelMask;
varying vec4 vDepthMask;
float jet_r(float x)
{
return x < 0.7 ? 4.0 * x - 1.5 : -4.0 * x + 4.5;
}
float jet_g(float x)
{
return x < 0.5 ? 4.0 * x - 0.5 : -4.0 * x + 3.5;
}
float jet_b(float x)
{
return x < 0.3 ? 4.0 * x + 0.5 : -4.0 * x + 2.5;
}
void main()
{
vec4 x = texture2D(DiffuseTexture, vTexCoord.st);
@@ -30,8 +45,11 @@ void main()
if (EnableDepthPreview)
{
// Front of the depth buffer is at 0, but we want to render it as bright
gl_FragColor = vec4(vec3(1.0 - gl_FragDepth), 1.0);
float x = 1.0 - gl_FragDepth;
float r = clamp(jet_r(x), 0.0, 1.0);
float g = clamp(jet_g(x), 0.0, 1.0);
float b = clamp(jet_b(x), 0.0, 1.0);
gl_FragColor = vec4(r, g, b, 1.0);
}
else
gl_FragColor = c;