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Proof of concept - real time tile fetching

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This commit is contained in:
Erik Broberg
2016-04-25 12:25:11 -04:00
parent 3d1db76c16
commit f253edad53
14 changed files with 121 additions and 49 deletions
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27
modules/globebrowsing/rendering/patchrenderer.cpp
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@@ -98,17 +98,16 @@ namespace openspace {
renderPatch(patch, data, radius, ti);
}
void LatLonPatchRenderer::renderPatch(
const LatLonPatch& patch,
const RenderData& data,
double radius,
const TileIndex& tileIndex)
void LatLonPatchRenderer::renderPatch(const LatLonPatch& patch,const RenderData& data,
double radius, const TileIndex& tileIndex)
{
using namespace glm;
// TODO : Model transform should be fetched as a matrix directly.
mat4 modelTransform = translate(mat4(1), data.position.vec3());
mat4 viewTransform = data.camera.combinedViewMatrix();
@@ -120,16 +119,26 @@ namespace openspace {
_programObject->activate();
// Get the textures that should be used for rendering
LatLonPatch tilePatch = _tileSet.getTilePositionAndScale(tileIndex);
std::shared_ptr<ghoul::opengl::Texture> tile00 = _tileSet.getTile(tileIndex);
glm::mat3 uvTransform = _tileSet.getUvTransformationPatchToTile(patch, tileIndex);
std::shared_ptr<ghoul::opengl::Texture> tile00;
bool usingTile = true;
TileIndex ti;
ti.level =tileIndex.level;
ti.x = tileIndex.y;
ti.y = tileIndex.x;
tile00 = tileProvider.getTile(ti);
if (tile00 == nullptr) {
tile00 = _tileSet.getTile(tileIndex);
usingTile = false;
}
glm::mat3 uvTransform = usingTile ? glm::mat3(1) : _tileSet.getUvTransformationPatchToTile(patch, tileIndex);
// Bind and use the texture
ghoul::opengl::TextureUnit texUnit;
texUnit.activate();
tile00->bind();
_programObject->setUniform("textureSampler", texUnit);
_programObject->setUniform("uvTransformPatchToTile", uvTransform);
LatLon swCorner = patch.southWestCorner();