Mesh* CircleShape::createMesh(const G3MRenderContext* rc) {
const IMathUtils* mu = IMathUtils::instance();
FloatBufferBuilderFromCartesian3D* vertices = FloatBufferBuilderFromCartesian3D::builderWithoutCenter();
// first is the center
vertices->add(0.0, 0.0, 0.0);
const double twicePi = PI * 2;
for (int i = 0; i <= _steps; i++) {
const double angleInRadians = i * twicePi / _steps;
const double x = _radius * mu->cos(angleInRadians);
const double y = _radius * mu->sin(angleInRadians);
vertices->add(x, y, 0);
}
Color* color = (_color == NULL) ? NULL : new Color(*_color);
if (_useNormals) {
FloatBufferBuilderFromCartesian3D* normals = FloatBufferBuilderFromCartesian3D::builderWithoutCenter();
for (int i = 0; i <= _steps+1; i++) {
normals->add(0.0, 0.0, 1.0);
}
Mesh* result = new DirectMesh(GLPrimitive::triangleFan(),
true,
Vector3D::zero,
vertices->create(),
1,
1,
color,
NULL,
1,
true,
normals->create());
delete normals;
delete vertices;
return result;
}
Mesh* result = new DirectMesh(GLPrimitive::triangleFan(),
true,
Vector3D::zero,
vertices->create(),
1,
1,
color);
delete vertices;
return result;
}
void CameraFocusSceneLighting::modifyGLState(GLState* glState, const G3MRenderContext* rc) {
const Camera* cam = rc->getCurrentCamera();
const Vector3D camDir = cam->getViewDirection();
const Vector3D up = cam->getUp();
if (_cameraDirX == camDir._x && _cameraDirY == camDir._y && _cameraDirZ == camDir._z &&
_upX == up._x && _upY == up._y && _upZ == up._z) {
return;
}
const Vector3D cameraVector = camDir.times(-1);
//Light slightly different of camera position
const Vector3D rotationLightDirAxis = up.cross(cameraVector);
const Vector3D lightDir = cameraVector.rotateAroundAxis(rotationLightDirAxis, Angle::fromDegrees(45.0));
DirectionLightGLFeature* f = (DirectionLightGLFeature*) glState->getGLFeature(GLF_DIRECTION_LIGTH);
if (f == NULL) {
glState->clearGLFeatureGroup(LIGHTING_GROUP);
glState->addGLFeature(new DirectionLightGLFeature(lightDir,
_diffuseColor,
_ambientColor),
false);
}
else{
f->setLightDirection(lightDir);
}
//ADD MESH
if (_meshRenderer != NULL) {
Vector3D lastCamDir(_cameraDirX, _cameraDirY, _cameraDirZ);
if (lastCamDir.angleBetween(lightDir)._degrees > 10) {
FloatBufferBuilderFromCartesian3D* vertices = FloatBufferBuilderFromCartesian3D::builderWithFirstVertexAsCenter();
vertices->add(cam->getCartesianPosition());
vertices->add(cam->getCartesianPosition().add(lightDir.times(1000)) );
DirectMesh* mesh = new DirectMesh(GLPrimitive::lines(),
true,
vertices->getCenter(),
vertices->create(),
(float)3.0,
(float)1.0,
new Color(Color::red()));
_meshRenderer->addMesh(mesh);
}
}
//SAVING STATE
_cameraDirX = camDir._x;
_cameraDirY = camDir._y;
_cameraDirZ = camDir._z;
_upX = up._x;
_upY = up._y;
_upZ = up._z;
}
Mesh* HUDImageRenderer::createMesh(const G3MRenderContext* rc) {
_creatingMesh = false;
if (_mesh != NULL) {
delete _mesh;
_mesh = NULL;
}
const IStringUtils* su = IStringUtils::instance();
const std::string textureName = "HUDImageRenderer" + su->toString(_instanceID) + "/" + su->toString(_changeCounter++);
const TextureIDReference* texId = rc->getTexturesHandler()->getTextureIDReference(_image,
GLFormat::rgba(),
textureName,
false);
delete _image;
_image = NULL;
if (texId == NULL) {
rc->getLogger()->logError("Can't upload texture to GPU");
return NULL;
}
const Camera* camera = rc->getCurrentCamera();
const double halfWidth = camera->getWidth() / 2.0;
const double halfHeight = camera->getHeight() / 2.0;
FloatBufferBuilderFromCartesian3D vertices = FloatBufferBuilderFromCartesian3D::builderWithoutCenter();
vertices.add(-halfWidth, halfHeight, 0);
vertices.add(-halfWidth, -halfHeight, 0);
vertices.add( halfWidth, halfHeight, 0);
vertices.add( halfWidth, -halfHeight, 0);
DirectMesh* mesh = new DirectMesh(GLPrimitive::triangleStrip(),
true,
vertices.getCenter(),
vertices.create(),
1,
1);
FloatBufferBuilderFromCartesian2D texCoords;
texCoords.add(0, 0);
texCoords.add(0, 1);
texCoords.add(1, 0);
texCoords.add(1, 1);
TextureMapping* textureMapping = new SimpleTextureMapping(texId,
texCoords.create(),
true,
true);
return new TexturedMesh(mesh, true,
textureMapping, true,
true);
}
Mesh* HUDRenderer::ShownImage::createMesh(const G3MRenderContext* rc) const {
//TEXTURED
#ifdef C_CODE
const TextureIDReference* texId = NULL;
#endif
#ifdef JAVA_CODE
TextureIDReference texId = null;
#endif
_factory = rc->getFactory();
texId = rc->getTexturesHandler()->getTextureIDReference(_image,
GLFormat::rgba(),
_name,
false);
if (texId == NULL) {
rc->getLogger()->logError("Can't upload texture to GPU");
return NULL;
}
const int viewportWidth = rc->getCurrentCamera()->getWidth();
const int viewportHeight = rc->getCurrentCamera()->getHeight();
const Vector3D halfViewportAndPosition(viewportWidth / 2 - _position._x,
viewportHeight / 2 - _position._y,
0);
const double w = _size._x;
const double h = _size._y;
FloatBufferBuilderFromCartesian3D vertices = FloatBufferBuilderFromCartesian3D::builderWithoutCenter();
vertices.add(Vector3D(0, h, 0).sub(halfViewportAndPosition));
vertices.add(Vector3D(0, 0, 0).sub(halfViewportAndPosition));
vertices.add(Vector3D(w, h, 0).sub(halfViewportAndPosition));
vertices.add(Vector3D(w, 0, 0).sub(halfViewportAndPosition));
FloatBufferBuilderFromCartesian2D texCoords;
texCoords.add(0, 0);
texCoords.add(0, 1);
texCoords.add(1, 0);
texCoords.add(1, 1);
DirectMesh *im = new DirectMesh(GLPrimitive::triangleStrip(),
true,
vertices.getCenter(),
vertices.create(),
1,
1);
TextureMapping* texMap = new SimpleTextureMapping(texId,
texCoords.create(),
true,
false);
return new TexturedMesh(im, true, texMap, true, true);
}
void Sphere::createWireframeMesh(Color* color,
short resolution) const {
IMathUtils* mu = IMathUtils::instance();
const double delta = PI / (resolution-1);
// create vertices
// FloatBufferBuilderFromCartesian3D vertices(CenterStrategy::firstVertex(), Vector3D::zero);
FloatBufferBuilderFromCartesian3D vertices = FloatBufferBuilderFromCartesian3D::builderWithFirstVertexAsCenter();
for (int i=0; i<2*resolution-2; i++) {
const double longitude = -PI + i*delta;
for (int j=0; j<resolution; j++) {
const double latitude = -PI/2 + j*delta;
const double h = mu->cos(latitude);
const double x = h * mu->cos(longitude);
const double y = h * mu->sin(longitude);
const double z = mu->sin(latitude);
vertices.add(Vector3D(x,y,z).times(_radius).add(_center));
}
}
// create border indices for vertical lines
ShortBufferBuilder indices;
for (short i=0; i<2*resolution-2; i++) {
for (short j=0; j<resolution-1; j++) {
indices.add((short) (j+i*resolution));
indices.add((short) (j+1+i*resolution));
}
}
// create border indices for horizontal lines
for (short j=1; j<resolution-1; j++) {
for (short i=0; i<2*resolution-3; i++) {
indices.add((short) (j+i*resolution));
indices.add((short) (j+(i+1)*resolution));
}
}
for (short j=1; j<resolution-1; j++) {
const short i = (short) (2*resolution-3);
indices.add((short) (j+i*resolution));
indices.add((short) (j));
}
_mesh = new IndexedMesh(GLPrimitive::lines(),
true,
vertices.getCenter(),
vertices.create(),
indices.create(),
1,
1,
color);
}
Mesh* BusyMeshRenderer::createMesh(const G3MRenderContext* rc) {
const int numStrides = 5;
FloatBufferBuilderFromCartesian3D* vertices = FloatBufferBuilderFromCartesian3D::builderWithoutCenter();
FloatBufferBuilderFromColor colors;
ShortBufferBuilder indices;
int indicesCounter = 0;
const float innerRadius = 0;
// const float r2=50;
const Camera* camera = rc->getCurrentCamera();
const int width = camera->getWidth();
const int height = camera->getHeight();
const int minSize = (width < height) ? width : height;
const float outerRadius = minSize / 15.0f;
const IMathUtils* mu = IMathUtils::instance();
for (int step = 0; step <= numStrides; step++) {
const double angle = (double) step * 2 * PI / numStrides;
const double c = mu->cos(angle);
const double s = mu->sin(angle);
vertices->add( (innerRadius * c), (innerRadius * s), 0);
vertices->add( (outerRadius * c), (outerRadius * s), 0);
indices.add((short) (indicesCounter++));
indices.add((short) (indicesCounter++));
// float col = (float) (1.0 * step / numStrides);
// if (col>1) {
// colors.add(1, 1, 1, 0);
// colors.add(1, 1, 1, 0);
// }
// else {
// colors.add(1, 1, 1, 1 - col);
// colors.add(1, 1, 1, 1 - col);
// }
// colors.add(Color::red().wheelStep(numStrides, step));
// colors.add(Color::red().wheelStep(numStrides, step));
colors.add(1, 1, 1, 1);
colors.add(1, 1, 1, 0);
}
// the two last indices
indices.add((short) 0);
indices.add((short) 1);
Mesh* result = new IndexedMesh(GLPrimitive::triangleStrip(),
true,
vertices->getCenter(),
vertices->create(),
indices.create(),
1,
1,
NULL,
colors.create());
delete vertices;
return result;
}