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Last change
on this file since 3589 was
2964,
checked in by ldelgass, 12 years ago
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Convert arrow glyph shaders to new NvShader? API. Fix velocity arrow glpyh and
line implementation, add arrow head to line arrows. Alpha channel of arrow
texture atlas still needs cleanup -- should probably just create a utility to
generate the texture to allow changes in lighting, FOV, etc. Note that volumes
and flows are currently not scaled properly -- the aspect ratios of the number
of samples is used rather than the physical lengths of the volumes/flows. This will be fixed for volumes, flows and the grid in a future commit. Also, client doesn't currently enable arrows, this will also be enabled in another commit.
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File size:
818 bytes
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| 1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
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| 2 | |
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| 3 | #include "particle_common.cg" |
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| 4 | |
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| 5 | float4 fpmain(float2 texCoord : TEXCOORD0, |
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| 6 | float4 color : COLOR0, |
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| 7 | float2 center : TEXCOORD2, |
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| 8 | float4 rotation : TEXCOORD3, |
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| 9 | uniform sampler2D arrows : TEXUNIT0) : COLOR |
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| 10 | { |
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| 11 | float2 newTexCoord = float2((texCoord.x - 0.5) / NUM_SUBIMAGE_X, (texCoord.y - 0.5) / NUM_SUBIMAGE_Y); |
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| 12 | float2 rotTexCoord; |
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| 13 | rotTexCoord.x = rotation.x * newTexCoord.x + rotation.y * newTexCoord.y; |
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| 14 | rotTexCoord.y = rotation.z * newTexCoord.x + rotation.w * newTexCoord.y; |
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| 15 | rotTexCoord.x = rotTexCoord.x + 0.5 / NUM_SUBIMAGE_X; |
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| 16 | rotTexCoord.y = rotTexCoord.y + 0.5 / NUM_SUBIMAGE_Y; |
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| 17 | rotTexCoord = rotTexCoord + center; |
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| 18 | |
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| 19 | return tex2D(arrows, rotTexCoord.xy) * color; |
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| 20 | } |
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