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Added licensing information from the GPU Gems site, fixed spacing.

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This commit is contained in:
Andrzej Kapolka 2013-05-08 09:55:46 -07:00
parent 80cdd597f4
commit 4567c31a26
2 changed files with 50 additions and 2 deletions
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24
interface/resources/shaders/SkyFromAtmosphere.frag
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@ -1,3 +1,27 @@
//
// For licensing information, see http://http.developer.nvidia.com/GPUGems/gpugems_app01.html:
//
// NVIDIA Statement on the Software
//
// The source code provided is freely distributable, so long as the NVIDIA header remains unaltered and user modifications are
// detailed.
//
// No Warranty
//
// THE SOFTWARE AND ANY OTHER MATERIALS PROVIDED BY NVIDIA ON THE ENCLOSED CD-ROM ARE PROVIDED "AS IS." NVIDIA DISCLAIMS ALL
// WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF TITLE, MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
//
// Limitation of Liability
//
// NVIDIA SHALL NOT BE LIABLE TO ANY USER, DEVELOPER, DEVELOPER'S CUSTOMERS, OR ANY OTHER PERSON OR ENTITY CLAIMING THROUGH OR
// UNDER DEVELOPER FOR ANY LOSS OF PROFITS, INCOME, SAVINGS, OR ANY OTHER CONSEQUENTIAL, INCIDENTAL, SPECIAL, PUNITIVE, DIRECT
// OR INDIRECT DAMAGES (WHETHER IN AN ACTION IN CONTRACT, TORT OR BASED ON A WARRANTY), EVEN IF NVIDIA HAS BEEN ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS SHALL APPLY NOTWITHSTANDING ANY FAILURE OF THE ESSENTIAL PURPOSE OF ANY
// LIMITED REMEDY. IN NO EVENT SHALL NVIDIA'S AGGREGATE LIABILITY TO DEVELOPER OR ANY OTHER PERSON OR ENTITY CLAIMING THROUGH
// OR UNDER DEVELOPER EXCEED THE AMOUNT OF MONEY ACTUALLY PAID BY DEVELOPER TO NVIDIA FOR THE SOFTWARE OR ANY OTHER MATERIALS.
//
//
// Atmospheric scattering fragment shader
//

28
interface/resources/shaders/SkyFromAtmosphere.vert
View file

@ -1,3 +1,27 @@
//
// For licensing information, see http://http.developer.nvidia.com/GPUGems/gpugems_app01.html:
//
// NVIDIA Statement on the Software
//
// The source code provided is freely distributable, so long as the NVIDIA header remains unaltered and user modifications are
// detailed.
//
// No Warranty
//
// THE SOFTWARE AND ANY OTHER MATERIALS PROVIDED BY NVIDIA ON THE ENCLOSED CD-ROM ARE PROVIDED "AS IS." NVIDIA DISCLAIMS ALL
// WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF TITLE, MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
//
// Limitation of Liability
//
// NVIDIA SHALL NOT BE LIABLE TO ANY USER, DEVELOPER, DEVELOPER'S CUSTOMERS, OR ANY OTHER PERSON OR ENTITY CLAIMING THROUGH OR
// UNDER DEVELOPER FOR ANY LOSS OF PROFITS, INCOME, SAVINGS, OR ANY OTHER CONSEQUENTIAL, INCIDENTAL, SPECIAL, PUNITIVE, DIRECT
// OR INDIRECT DAMAGES (WHETHER IN AN ACTION IN CONTRACT, TORT OR BASED ON A WARRANTY), EVEN IF NVIDIA HAS BEEN ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS SHALL APPLY NOTWITHSTANDING ANY FAILURE OF THE ESSENTIAL PURPOSE OF ANY
// LIMITED REMEDY. IN NO EVENT SHALL NVIDIA'S AGGREGATE LIABILITY TO DEVELOPER OR ANY OTHER PERSON OR ENTITY CLAIMING THROUGH
// OR UNDER DEVELOPER EXCEED THE AMOUNT OF MONEY ACTUALLY PAID BY DEVELOPER TO NVIDIA FOR THE SOFTWARE OR ANY OTHER MATERIALS.
//
//
// Atmospheric scattering vertex shader
//
@ -45,7 +69,7 @@ void main(void)
float fHeight = length(v3Start);
float fDepth = exp(fScaleOverScaleDepth * (fInnerRadius - fHeight));
float fStartAngle = dot(v3Ray, v3Start) / fHeight;
float fStartOffset = fDepth*scale(fStartAngle);
float fStartOffset = fDepth * scale(fStartAngle);
// Initialize the scattering loop variables
//gl_FrontColor = vec4(0.0, 0.0, 0.0, 0.0);
@ -62,7 +86,7 @@ void main(void)
float fDepth = exp(fScaleOverScaleDepth * (fInnerRadius - fHeight));
float fLightAngle = dot(v3LightPos, v3SamplePoint) / fHeight;
float fCameraAngle = dot(v3Ray, v3SamplePoint) / fHeight;
float fScatter = (fStartOffset + fDepth*(scale(fLightAngle) - scale(fCameraAngle)));
float fScatter = (fStartOffset + fDepth * (scale(fLightAngle) - scale(fCameraAngle)));
vec3 v3Attenuate = exp(-fScatter * (v3InvWavelength * fKr4PI + fKm4PI));
v3FrontColor += v3Attenuate * (fDepth * fScaledLength);
v3SamplePoint += v3SampleRay;