const SUCCESS colorChange(const SDL_Keysym &key)
{
switch(key.scancode)
{
default:
return SUCCEEDED;
case SDL_SCANCODE_Q:
col.R()++;
break;
case SDL_SCANCODE_W:
col.G()++;
break;
case SDL_SCANCODE_E:
col.B()++;
break;
case SDL_SCANCODE_R:
col.A()++;
break;
case SDL_SCANCODE_A:
col.R()--;
break;
case SDL_SCANCODE_S:
col.G()--;
break;
case SDL_SCANCODE_D:
col.B()--;
break;
case SDL_SCANCODE_F:
col.A()--;
break;
}
ren.setColor(col);
return SUCCEEDED;
}
inline static Color RandColor( Color c0, Color c1 )
{
// We might want to find min and max of each channel rather than assuming c0 <= c1
return Color(
s_RNG.NextFloat( c0.R(), c1.R()),
s_RNG.NextFloat( c0.G(), c1.G()),
s_RNG.NextFloat( c0.B(), c1.B()),
s_RNG.NextFloat( c0.A(), c1.A())
);
}
inline Color ColorClamp(const Color &col) {
Color ret;
ret = col;
if ( col.R() > 1.0f )
ret.R(1.0f);
if ( col.G() > 1.0f )
ret.G(1.0f);
if ( col.B() > 1.0f )
ret.B(1.0f);
return ret;
}
void operator-=(const Color &rhs)
{
m_col.c.r -= rhs.R();
m_col.c.g -= rhs.G();
m_col.c.b -= rhs.B();
m_col.c.a -= rhs.A();
}
void operator*=(const Color &rhs)
{
m_col.c.r *= rhs.R();
m_col.c.g *= rhs.G();
m_col.c.b *= rhs.B();
m_col.c.a *= rhs.A();
}
void Context :: GetBooleanv(GLenum pname, GLboolean *params) {
switch (pname) {
case GL_LIGHT_MODEL_TWO_SIDE:
params[0] = m_TwoSidedLightning;
break;
case GL_COLOR_WRITEMASK:
{
Color mask = m_RasterizerState.GetColorMask();
params[0] = mask.R() != 0;
params[1] = mask.G() != 0;
params[2] = mask.B() != 0;
params[3] = mask.A() != 0;
}
break;
case GL_DEPTH_WRITEMASK:
params[0] = m_RasterizerState.GetDepthMask();
break;
case GL_SAMPLE_COVERAGE_INVERT:
params[0] = m_RasterizerState.GetSampleCoverageInvert();
break;
default:
RecordError(GL_INVALID_ENUM);
return;
}
}
void operator+=(const Color &rhs)
{
m_col.c.r += rhs.R();
m_col.c.g += rhs.G();
m_col.c.b += rhs.B();
m_col.c.a += rhs.A();
}
////////////////////////////////////////////////////////////////////////////////////////////////////
// GenerateFillVertices()
//
////////////////////////////////////////////////////////////////////////////////////////////////////
void CVertexGenerator::GenerateFillVertices( const WinRect & rectToFill, const bool bSetStream, Color fillColour )
{
D3DCOLOR d3dColor = D3DCOLOR_RGBA( (DWORD) (fillColour.R() * 255),
(DWORD) (fillColour.G() * 255),
(DWORD) (fillColour.B() * 255),
255 );
GenerateFillVerticesD3DColor( rectToFill, bSetStream, d3dColor );
}
void PhotonMap::ScalePhotons(const float scaleFactor)
{
for(int index = 0; index < (int) m_photons.size(); index++)
{
Color power = m_photons[index].Power();
power.R() *= scaleFactor;
power.G() *= scaleFactor;
power.B() *= scaleFactor;
m_photons[index].Power(power);
}
}
Color PhotonMap::GetRadianceEstimate(const int N, const float maxDistance, Point3 location, Vector3 normal)
{
float R = 0;
float G = 0;
float B = 0;
vector<PhotonDistPair> nearest = GetNearestNPhotons(N, maxDistance, location, normal);
if(nearest.size() == 0)
{
return Color(0.0, 0.0, 0.0);
}
// get the radius of the furthest photon
double r = nearest.front().m_Distance;
for(int index = 0; index < nearest.size(); ++index)
{
const Photon* p = nearest[index].m_pPhoton;
Color power = p->Power();
Vector3 photonDir = p->Direction();
double radius = nearest[index].m_Distance;
double weight = (m_CausticsMap) ? (r - radius)/radius : 1;//smoothstep(0,1,1-radius/r);
R += power.R() * weight;
G += power.G() * weight;
B += power.B() * weight;
//std::cout << weight << std::endl;
}
// filter?
float densityEstimate = (m_CausticsMap) ? N/(PI*r*r) : 1;
R *= densityEstimate;
G *= densityEstimate;
B *= densityEstimate;
return Color(R,G,B);
}
sf::Color SfmlConverter::GetSFColor(const Color& color)
{
return sf::Color(color.R(),color.G(),color.B(),color.Alpha());
}
void Raytracer::RenderPart(int _x, int _y, int _width, int _height)
{
for (int i = 0; i < 200; i++)
{
for (int x = _x; x < _x + _width; x++)
{
for (int y = _y; y < _y + _height; y++)
{
int pixelIndex = (x + m_Width * y) * 4;
Ray current = GetRay(x, y);
Color col = ReadColorAt(x, y);
float factor = 1.0f - 1.0f / i;
col = col * factor + m_pScene->Intersect(current, 3) * (1.0f - factor);
sf::Color newCol((sf::Uint8)(col.R() * 255), (sf::Uint8)(col.G() * 255), (sf::Uint8)(col.B() * 255), 255);
m_Pixels[pixelIndex + 0] = newCol.r;
m_Pixels[pixelIndex + 1] = newCol.g;
m_Pixels[pixelIndex + 2] = newCol.b;
m_Pixels[pixelIndex + 3] = newCol.a;
}
}
}
}
inline sf::Color RedToSFMLColor(const Color &pColor){
return sf::Color(static_cast<u8>(pColor.R() * 255),
static_cast<u8>(pColor.G() * 255),
static_cast<u8>(pColor.B() * 255),
static_cast<u8>(pColor.A() * 255));
}
void QTRenderer::DrawRectangle(const Pointf& point, const Sizef& size, const Color& outlineColor, float thickness) {
QPen p(QColor(outlineColor.R(),outlineColor.G(),outlineColor.B(),outlineColor.A()));
p.setWidth((int)thickness);
painter->setPen(p);
painter->drawRect(point.X(),point.Y(),size.W(),size.H());
}
void QTRenderer::DrawFilledRectangle(const Pointf& point, const Sizef& size, const Color& fillColor)
{
painter->fillRect(point.X(),point.Y(),size.W(),size.H(),QBrush(QColor(fillColor.R(),fillColor.G(),fillColor.B(),fillColor.A())));
}
int* OilFilter::procImage() {
int *originPixels = new int[width * height];
memcpy(originPixels, pixels, width * height * sizeof(int));
int rHis[OIL_FILTER_LEVEL], gHis[OIL_FILTER_LEVEL], bHis[OIL_FILTER_LEVEL];
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
memset(rHis, 0, OIL_FILTER_LEVEL * sizeof(int));
memset(gHis, 0, OIL_FILTER_LEVEL * sizeof(int));
memset(bHis, 0, OIL_FILTER_LEVEL * sizeof(int));
int rowOffset, colOffset;
for (int row = -this->oilRange; row < this->oilRange; row++) {
rowOffset = y + row;
if (rowOffset >= 0 && rowOffset < height) {
for (int col = -this->oilRange; col < this->oilRange; col++) {
colOffset = x + col;
if (colOffset >= 0 && colOffset < width) {
Color color = originPixels[rowOffset * width + colOffset];
int r = color.R();
int g = color.G();
int b = color.B();
rHis[r]++;
gHis[g]++;
bHis[b]++;
}
}
}
}
int maxR = 0, maxG = 0, maxB = 0;
for (int i = 1; i < OIL_FILTER_LEVEL; i++) {
if (rHis[i] > rHis[maxR]) {
maxR = i;
}
if (gHis[i] > gHis[maxG]) {
maxG = i;
}
if (bHis[i] > bHis[maxB]) {
maxB = i;
}
}
if (rHis[maxR] != 0 && gHis[maxG] != 0 && bHis[maxB] != 0) {
int finalR = maxR;
int finalG = maxG;
int finalB = maxB;
finalR = min(255, max(0, finalR));
finalG = min(255, max(0, finalG));
finalB = min(255, max(0, finalB));
pixels[y * width + x] = RGB2Color(finalR, finalG, finalB);
}
}
}
delete [] originPixels;
return pixels;
}
// ===================
// Point lights
// ===================
void World::DoLightingPass(const PointLight& l)
{
gbuffer.StartLightingPass();
// Disable depth test.
glDisable(GL_DEPTH_TEST);
// Setup for lighting pass.
glStencilFunc(GL_NOTEQUAL, 0, 0xFF);
glEnable(GL_BLEND);
glEnable(GL_CULL_FACE);
glCullFace(GL_FRONT);
// Bind pass 2 shader.
Shader* lpassShader = &pointLightShader;
Shader::Bind(lpassShader);
// Activate gbuffer textures.
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, gbuffer.GetColorID());
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, gbuffer.GetNormalID());
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, gbuffer.GetPositionID());
// Matrices
Matrix pmat = cam.GetProjectionMatrix();
Matrix vmat = cam.GetViewMatrix();
lpassShader->SetParameter("projectionMatrix", &pmat[0][0]);
lpassShader->SetParameter("viewMatrix", &vmat[0][0]);
lpassShader->SetParameter("screenSize", WINDOW_WIDTH, WINDOW_HEIGHT);
// Set the eye position to the camera position.
Vector3 cpos = cam.GetPosition();
lpassShader->SetParameter("eyePosition", cpos.x, cpos.y, cpos.z);
lpassShader->SetParameter("farClipDistance", cam.GetFarClippingPlane());
// Texture locations
lpassShader->SetParameter("difftex", 0);
lpassShader->SetParameter("normtex", 1);
lpassShader->SetParameter("postex", 2);
// Draw point lights.
Matrix lmat = l.GetMatrix();
lpassShader->SetParameter("modelMatrix", &lmat[0][0]);
const Vector3& pos = l.GetPosition();
lpassShader->SetParameter("lightPos", pos.x, pos.y, pos.z);
// Itensity.
lpassShader->SetParameter("ambientIntensity", l.GetAmbientIntensity());
lpassShader->SetParameter("diffuseIntensity", l.GetDiffuseIntensity());
// Attenuation.
lpassShader->SetParameter("attenuationConstant", l.GetAttenuationConstant());
lpassShader->SetParameter("attenuationLinear", l.GetAttenuationLinear());
lpassShader->SetParameter("attenuationExponential", l.GetAttenuationExponential());
Color diffuseColor = l.GetColor();
lpassShader->SetParameter("lightColor", diffuseColor.R(), diffuseColor.G(), diffuseColor.B());
pointLightMesh.Draw();
glCullFace(GL_BACK);
glDisable(GL_BLEND);
}