//--
CgShaderCel::CgShaderCel(CGcontext cgContext) :
CgShader(cgContext, CgShader::VertexFragment)
{
// [rad] This is vertex and fragment shader
// [rad] Setup vertex shader:
// [rad] Setup vertex shader entry point
SetEntry(CgShader::Vertex, "main");
static const std::string sProgramVertex = " \
\
void main( float4 inPosition : POSITION, \
float4 inNormal : NORMAL, \
\
out float4 outOPosition : POSITION, \
out float4 outVPosition : TEXCOORD0, \
out float4 outNormal : TEXCOORD1, \
\
uniform float4x4 uniModelViewProjMat, \
uniform float4x4 uniModelViewITMat, \
uniform float4x4 uniModelViewMat) \
{ \
outOPosition = mul(uniModelViewProjMat, inPosition); \
outVPosition = mul(uniModelViewMat, inPosition); \
\
outNormal = mul(uniModelViewITMat, inNormal); \
outNormal.xyz = normalize(outNormal.xyz); \
} ";
// [rad] Setup vertex shader program
SetProgram(CgShader::Vertex, sProgramVertex);
// [rad] Setup fragment shader:
// [rad] Setup fragment shader entry point
SetEntry(CgShader::Fragment, "main");
static const std::string sProgramFragment = " \
\
void main( \
float4 inPosition : TEXCOORD0, \
float4 inNormal : TEXCOORD1, \
\
out float4 outColor : COLOR, \
\
uniform sampler1D uniTexDiffuse, \
uniform sampler1D uniTexSpecular, \
uniform sampler1D uniTexOutline, \
\
uniform float3 uniMatDiffuse, \
uniform float3 uniMatSpecular, \
uniform float3 uniLightColor, \
uniform float3 uniLightPosition, \
uniform float3 uniEyePosition, \
uniform float uniShininess, \
\
uniform int uniComputeOutline) \
{ \
\
float3 p = inPosition.xyz; \
float3 n = normalize(inNormal.xyz); \
\
float3 l = normalize(uniLightPosition - p); \
float diffuseL = max(dot(n, l), 0); \
diffuseL = tex1D(uniTexDiffuse, diffuseL).x; \
float3 diffuse = uniLightColor * diffuseL * uniMatDiffuse; \
\
float3 v = normalize(uniEyePosition - p); \
float3 h = normalize(l + v); \
float specularL = pow(max(dot(n, h), 0), uniShininess); \
if(diffuseL <= 0) specularL = 0; \
specularL = tex1D(uniTexSpecular, specularL).x; \
float3 specular = uniLightColor * specularL * uniMatSpecular; \
\
float edgeL = 1; \
\
if(uniComputeOutline) \
{ \
edgeL = max(dot(n, v), 0); \
edgeL = tex1D(uniTexOutline, edgeL).x; \
} \
\
outColor.x = edgeL * (diffuse + specular); \
outColor.y = edgeL * (diffuse + specular); \
outColor.z = edgeL * (diffuse + specular); \
outColor.w = 1; \
} ";
// float3 diffuse = diffuseL * uniMatDiffuse;
// float3 specular = specularL * uniMatSpecular;
// [rad] Setup fragment shader program
SetProgram(CgShader::Fragment, sProgramFragment);
// [rad] Create shaders (both fragment and vertex)
Create();
// [rad] Set params - vertex shader
m_cgParamModelViewProjMatrix = cgGetNamedParameter(m_cgShaderVertex, "uniModelViewProjMat");
m_cgParamModelViewMatrix = cgGetNamedParameter(m_cgShaderVertex, "uniModelViewMat");
m_cgParamModelViewITMatrix = cgGetNamedParameter(m_cgShaderVertex, "uniModelViewITMat");
// [rad] Set params - fragment shader
m_cgParamLightColorVector = cgGetNamedParameter(m_cgShaderFragment, "uniLightColor");
m_cgParamLightPositionVector = cgGetNamedParameter(m_cgShaderFragment, "uniLightPosition");
m_cgParamEyePositionVector = cgGetNamedParameter(m_cgShaderFragment, "uniEyePosition");
m_cgParamShininess = cgGetNamedParameter(m_cgShaderFragment, "uniShininess");
m_cgParamMatDiffuseVector = cgGetNamedParameter(m_cgShaderFragment, "uniMatDiffuse");
m_cgParamMatSpecularVector = cgGetNamedParameter(m_cgShaderFragment, "uniMatSpecular");
m_cgParamSamplerDiffuse = cgGetNamedParameter(m_cgShaderFragment, "uniTexDiffuse");
m_cgParamSamplerSpecular = cgGetNamedParameter(m_cgShaderFragment, "uniTexSpecular");
m_cgParamSamplerOutline = cgGetNamedParameter(m_cgShaderFragment, "uniTexOutline");
m_cgParamComputeOutline = cgGetNamedParameter(m_cgShaderFragment, "uniComputeOutline");
// [rad] Manually assign other (material) related params
cgSetParameter1f(m_cgParamShininess, 128.0f);
static const float af3ColorDiffuse[3] = {0.8f, 0.8f, 0.8f};
cgSetParameter3fv(m_cgParamMatDiffuseVector, af3ColorDiffuse);
static const float af3ColorSpecular[3] = {1.0f, 1.0f, 1.0f};
cgSetParameter3fv(m_cgParamMatSpecularVector, af3ColorSpecular);
static const float af3Color[3] = {1.0f, 1.0f, 1.0f};
cgSetParameter3fv(m_cgParamLightColorVector, af3Color);
// [rad] Set texture params
GenerateTextures();
cgGLSetTextureParameter(m_cgParamSamplerDiffuse, m_glIDTextureDiffuse);
cgGLSetTextureParameter(m_cgParamSamplerSpecular, m_glIDTextureSpecular);
cgGLSetTextureParameter(m_cgParamSamplerOutline, m_glIDTextureOutline);
}
//--
void
CgShaderCel::SetParamLightColor(const float* pVec)
{
cgSetParameter3fv(m_cgParamLightColorVector, pVec);
}
void ShaderParameterCg::Set(glm::detail::tvec3<float> const& vector)
{
cgSetParameter3fv(this->_param, (float*)&vector);
}
//--
void
CgShaderCel::SetParamEyePosition(const float* pVec)
{
cgSetParameter3fv(m_cgParamEyePositionVector, pVec);
}
//
// SetFloatVec3
//
void CCgUniform::SetFloatVec3(
const Vec3<GLfloat>& v
)
{
cgSetParameter3fv( m_Parameter, &v[ 0 ] );
}
