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Diffstat (limited to 'src/CgShaderTest/simple_vp.cg')
| -rw-r--r-- | src/CgShaderTest/simple_vp.cg | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/src/CgShaderTest/simple_vp.cg b/src/CgShaderTest/simple_vp.cg deleted file mode 100644 index d030818..0000000 --- a/src/CgShaderTest/simple_vp.cg +++ /dev/null @@ -1,167 +0,0 @@ -/* - * $RCSfile$ - * - * Copyright (c) 2006 Sun Microsystems, Inc. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * - Redistribution of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * - Redistribution in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * Neither the name of Sun Microsystems, Inc. or the names of - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * This software is provided "AS IS," without a warranty of any - * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND - * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY - * EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL - * NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF - * USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS - * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR - * ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, - * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND - * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR - * INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - * - * You acknowledge that this software is not designed, licensed or - * intended for use in the design, construction, operation or - * maintenance of any nuclear facility. - * - * $Revision$ - * $Date$ - * $State$ - */ - -/*********************************************************************NVMH3**** -Path: NVSDK\Common\media\programs -File: simple.cg - -Copyright NVIDIA Corporation 2002 -TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THIS SOFTWARE IS PROVIDED -*AS IS* AND NVIDIA AND ITS SUPPLIERS DISCLAIM ALL WARRANTIES, EITHER EXPRESS -OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY -AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL NVIDIA OR ITS SUPPLIERS -BE LIABLE FOR ANY SPECIAL, INCIDENTAL, INDIRECT, OR CONSEQUENTIAL DAMAGES -WHATSOEVER (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, -BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR ANY OTHER PECUNIARY LOSS) -ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF NVIDIA HAS -BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. - - -Comments: - -******************************************************************************/ - -// Simple vertex shader, derived from NVIDIA's simple.cg sample -// shader, that modulates the lit color with a noise pattern based on -// vertex position. - -// define inputs from application -struct appin -{ - float4 Position : POSITION; - float4 Normal : NORMAL; -}; - -// define outputs from vertex shader -struct vertout -{ - float4 HPosition : POSITION; - float4 FragPos : TEXCOORD0; - float4 Color0 : COLOR0; -}; - -vertout main(appin IN, - uniform float4x4 ModelViewProj, - uniform float4x4 ModelViewIT, - uniform float4 LightVec, - uniform float4 LightColor, - uniform float4 DiffuseMaterial, - uniform float4 SpecularMaterial) -{ - vertout OUT; - -// Assume that the profile is PROFILE_ARBVP1... -// #ifdef PROFILE_ARBVP1 - ModelViewProj = glstate.matrix.mvp; - ModelViewIT = glstate.matrix.invtrans.modelview[0]; - LightVec = glstate.light[0].position; - LightColor = glstate.light[0].diffuse; - DiffuseMaterial = glstate.material.front.diffuse; - SpecularMaterial = glstate.material.front.specular; -// #endif - - // transform vertex position into homogenous clip-space - OUT.HPosition = mul(ModelViewProj, IN.Position); - - // Output the post-perspective-divide position as FragPos - float invW = 1.0f / OUT.HPosition.w; - OUT.FragPos = OUT.HPosition * invW; - - // transform normal from model-space to view-space - float3 normalVec = normalize(mul(ModelViewIT, IN.Normal).xyz); - - // store normalized light vector - float3 lightVec = normalize(LightVec.xyz); - - // calculate half angle vector - float3 eyeVec = float3(0.0, 0.0, 1.0); - float3 halfVec = normalize(lightVec + eyeVec); - - // calculate diffuse component - float diffuse = dot(normalVec, lightVec); - - // calculate specular component - float specular = dot(normalVec, halfVec); - - // The lit() function is a handy function in the standard library that - // can be used to accelerate your lighting calculations. - // - // This function return a vector containing these values: - // result.x = 1.0; - // result.y = max(diffuse, 0); - // result.z = if (result.y > 0.0) then pow(specular, 32) else 0.0 - // result.w = 1.0; - - // Use the lit function to compute lighting vector from diffuse and - // specular values - float4 lighting = lit(diffuse, specular, 32); - - // combine diffuse and specular contributions - float3 color0 = (lighting.y * DiffuseMaterial.xyz * LightColor.xyz) + - (lighting.z * SpecularMaterial.xyz); - - // Generate a pseudo-random noise pattern -// float3 xyz = clamp((normalVec.xyz + 1.0) * 0.5, 0.0, 1.0); - float3 xyz = clamp((OUT.HPosition.xyz + 1.0) * 0.5, 0.0, 1.0); - - xyz = frac(xyz * 262144.0); - float randSeed = frac(3.0 * xyz.x + 5.0 * xyz.y + 7.0 * xyz.z); - - float3 altColor; - - randSeed = frac(37.0 * randSeed); - altColor.x = randSeed * 0.5 + 0.5; - randSeed = frac(37.0 * randSeed); - altColor.y = randSeed * 0.5 + 0.5; - randSeed = frac(37.0 * randSeed); - altColor.z = randSeed * 0.5 + 0.5; - randSeed = frac(37.0 * randSeed); - float altAlpha = randSeed * 0.5; - - // Apply noise and output final vertex color - OUT.Color0.rgb = lerp(color0, altColor, altAlpha); - OUT.Color0.a = 1.0; - - return OUT; -} |