void RenderablePolyLineEntityItem::createPipeline() {
static const int NORMAL_OFFSET = 12;
static const int COLOR_OFFSET = 24;
static const int TEXTURE_OFFSET = 28;
auto textureCache = DependencyManager::get<TextureCache>();
QString path = PathUtils::resourcesPath() + "images/paintStroke.png";
_texture = textureCache->getImageTexture(path);
_format.reset(new gpu::Stream::Format());
_format->setAttribute(gpu::Stream::POSITION, 0, gpu::Element(gpu::VEC3, gpu::FLOAT, gpu::XYZ), 0);
_format->setAttribute(gpu::Stream::NORMAL, 0, gpu::Element(gpu::VEC3, gpu::FLOAT, gpu::XYZ), NORMAL_OFFSET);
_format->setAttribute(gpu::Stream::COLOR, 0, gpu::Element::COLOR_RGBA_32, COLOR_OFFSET);
_format->setAttribute(gpu::Stream::TEXCOORD, 0, gpu::Element(gpu::VEC2, gpu::FLOAT, gpu::UV), TEXTURE_OFFSET);
auto VS = gpu::ShaderPointer(gpu::Shader::createVertex(std::string(paintStroke_vert)));
auto PS = gpu::ShaderPointer(gpu::Shader::createPixel(std::string(paintStroke_frag)));
gpu::ShaderPointer program = gpu::ShaderPointer(gpu::Shader::createProgram(VS, PS));
gpu::Shader::BindingSet slotBindings;
PAINTSTROKE_GPU_SLOT = 0;
slotBindings.insert(gpu::Shader::Binding(std::string("paintStrokeTextureBinding"), PAINTSTROKE_GPU_SLOT));
gpu::Shader::makeProgram(*program, slotBindings);
gpu::StatePointer state = gpu::StatePointer(new gpu::State());
state->setDepthTest(true, true, gpu::LESS_EQUAL);
state->setBlendFunction(true,
gpu::State::SRC_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::INV_SRC_ALPHA,
gpu::State::FACTOR_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::ONE);
_pipeline = gpu::PipelinePointer(gpu::Pipeline::create(program, state));
}
const gpu::TexturePointer& TextureCache::getNormalFittingTexture() {
if (!_normalFittingTexture) {
_normalFittingTexture = getImageTexture(PathUtils::resourcesPath() + "images/normalFittingScale.dds");
}
return _normalFittingTexture;
}
const gpu::TexturePointer& TextureCache::getPermutationNormalTexture() {
if (!_permutationNormalTexture) {
// the first line consists of random permutation offsets
unsigned char data[256 * 2 * 3];
#if (USE_CHRIS_NOISE==1)
for (int i = 0; i < 256; i++) {
data[3*i+0] = permutation[i];
data[3*i+1] = permutation[i];
data[3*i+2] = permutation[i];
#else
for (int i = 0; i < 256 * 3; i++) {
data[i] = rand() % 256;
#endif
}
for (int i = 256 * 3; i < 256 * 3 * 2; i += 3) {
glm::vec3 randvec = glm::sphericalRand(1.0f);
data[i] = ((randvec.x + 1.0f) / 2.0f) * 255.0f;
data[i + 1] = ((randvec.y + 1.0f) / 2.0f) * 255.0f;
data[i + 2] = ((randvec.z + 1.0f) / 2.0f) * 255.0f;
}
_permutationNormalTexture = gpu::TexturePointer(gpu::Texture::create2D(gpu::Element(gpu::VEC3, gpu::NUINT8, gpu::RGB), 256, 2));
_permutationNormalTexture->assignStoredMip(0, _blueTexture->getTexelFormat(), sizeof(data), data);
}
return _permutationNormalTexture;
}
const unsigned char OPAQUE_WHITE[] = { 0xFF, 0xFF, 0xFF, 0xFF };
const unsigned char OPAQUE_GRAY[] = { 0x80, 0x80, 0x80, 0xFF };
const unsigned char OPAQUE_BLUE[] = { 0x80, 0x80, 0xFF, 0xFF };
const unsigned char OPAQUE_BLACK[] = { 0x00, 0x00, 0x00, 0xFF };
const gpu::TexturePointer& TextureCache::getWhiteTexture() {
if (!_whiteTexture) {
_whiteTexture = gpu::TexturePointer(gpu::Texture::create2D(gpu::Element::COLOR_RGBA_32, 1, 1));
_whiteTexture->assignStoredMip(0, _whiteTexture->getTexelFormat(), sizeof(OPAQUE_WHITE), OPAQUE_WHITE);
}
return _whiteTexture;
}
const gpu::TexturePointer& TextureCache::getGrayTexture() {
if (!_grayTexture) {
_grayTexture = gpu::TexturePointer(gpu::Texture::create2D(gpu::Element::COLOR_RGBA_32, 1, 1));
_grayTexture->assignStoredMip(0, _whiteTexture->getTexelFormat(), sizeof(OPAQUE_WHITE), OPAQUE_GRAY);
}
return _grayTexture;
}
const gpu::TexturePointer& TextureCache::getBlueTexture() {
if (!_blueTexture) {
_blueTexture = gpu::TexturePointer(gpu::Texture::create2D(gpu::Element::COLOR_RGBA_32, 1, 1));
_blueTexture->assignStoredMip(0, _blueTexture->getTexelFormat(), sizeof(OPAQUE_BLUE), OPAQUE_BLUE);
}
return _blueTexture;
}
const gpu::TexturePointer& TextureCache::getBlackTexture() {
if (!_blackTexture) {
_blackTexture = gpu::TexturePointer(gpu::Texture::create2D(gpu::Element::COLOR_RGBA_32, 1, 1));
_blackTexture->assignStoredMip(0, _whiteTexture->getTexelFormat(), sizeof(OPAQUE_BLACK), OPAQUE_BLACK);
}
return _blackTexture;
}
const gpu::TexturePointer& TextureCache::getNormalFittingTexture() {
if (!_normalFittingTexture) {
_normalFittingTexture = getImageTexture(PathUtils::resourcesPath() + "images/normalFittingScale.dds");
}
return _normalFittingTexture;
}
/// Extra data for creating textures.
class TextureExtra {
public:
TextureType type;
const QByteArray& content;
};
NetworkTexturePointer TextureCache::getTexture(const QUrl& url, TextureType type, const QByteArray& content) {
TextureExtra extra = { type, content };
return ResourceCache::getResource(url, QUrl(), false, &extra).staticCast<NetworkTexture>();
}
