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Last change
on this file since 4022 was
3939,
checked in by bensch, 18 years ago
|
|
data/trunk: merged the data from the atmos branche back
|
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File size:
540 bytes
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| Line | |
|---|
| 1 | varying float intensity_sq, intensity; |
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| 2 | |
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| 3 | uniform vec4 bbox; |
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| 4 | uniform float time; |
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| 5 | |
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| 6 | void main() |
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| 7 | { |
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| 8 | gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex; |
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| 9 | |
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| 10 | gl_TexCoord[0] = vec4(gl_Vertex.x / 2.0 + time, gl_Vertex.z / 2.0, 0.0, 0.0); |
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| 11 | gl_TexCoord[1] = vec4(gl_Vertex.x + time / 2.0, gl_Vertex.z, 0.0, 0.0); |
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| 12 | |
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| 13 | // Get the vertex height and scale it to 0 - 1 range. |
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| 14 | intensity = gl_Vertex.y / bbox.y; |
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| 15 | intensity = exp(clamp(intensity, 0.0, 1.0)) / 1.8; |
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| 16 | intensity_sq = intensity * intensity; |
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| 17 | } |
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