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Fix globe

This commit is contained in:
Essem 2022-05-23 09:47:59 -05:00
parent bae6342d80
commit 3301fcebb8
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GPG Key ID: 7D497397CC3A2A8C
2 changed files with 15 additions and 8 deletions
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assets/images/spheremap.png
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23
natives/globe.cc
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@ -26,22 +26,29 @@ Napi::Value Globe(const Napi::CallbackInfo &info) {
int width = in.width();
int page_height = vips_image_get_page_height(in.get_image());
int n_pages = type == "gif" ? vips_image_get_n_pages(in.get_image()) : 29;
int n_pages = type == "gif" ? vips_image_get_n_pages(in.get_image()) : 30;
double size = min(width, page_height);
string diffPath = basePath + "assets/images/globediffuse.png";
VImage diffuse =
VImage::new_from_file(diffPath.c_str()).resize(size / 500.0) / 255;
VImage::new_from_file(diffPath.c_str())
.resize(size / 500.0,
VImage::option()->set("kernel", VIPS_KERNEL_CUBIC)) /
255;
string specPath = basePath + "assets/images/globespec.png";
VImage specular =
VImage::new_from_file(specPath.c_str()).resize(size / 500.0);
VImage::new_from_file(specPath.c_str())
.resize(size / 500.0,
VImage::option()->set("kernel", VIPS_KERNEL_CUBIC));
string distortPath = basePath + "assets/images/spheremap.png";
VImage distort =
(VImage::new_from_file(distortPath.c_str()).resize(size / 500.0) /
255) *
(VImage::new_from_file(distortPath.c_str())
.resize(size / 500.0,
VImage::option()->set("kernel", VIPS_KERNEL_CUBIC)) /
65535) *
size;
vector<VImage> img;
@ -51,8 +58,8 @@ Napi::Value Globe(const Napi::CallbackInfo &info) {
VImage resized = img_frame.resize(
size / (double)width,
VImage::option()->set("vscale", size / (double)page_height));
VImage rolled = resized.wrap(
VImage::option()->set("x", page_height * i / n_pages)->set("y", 0));
VImage rolled = img_frame.wrap(
VImage::option()->set("x", width * i / n_pages)->set("y", 0));
VImage extracted = rolled.extract_band(0, VImage::option()->set("n", 3));
VImage mapped = extracted.mapim(distort);
VImage composited = mapped * diffuse + specular;
@ -60,7 +67,7 @@ Napi::Value Globe(const Napi::CallbackInfo &info) {
img.push_back(frame);
}
VImage final = VImage::arrayjoin(img, VImage::option()->set("across", 1));
final.set(VIPS_META_PAGE_HEIGHT, page_height);
final.set(VIPS_META_PAGE_HEIGHT, size);
if (type != "gif") {
vector<int> delay(30, 50);
final.set("delay", delay);