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separate edge, face, and cell frame. face frame not implemented.

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This commit is contained in:
David Allemang
2018-12-21 09:17:33 -05:00
parent d77e347bf4
commit 5866c190ca
2 changed files with 27 additions and 10 deletions
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33
simplex/include/solids.h
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@@ -47,18 +47,18 @@ Mesh<4> tesseract() {
rot_zw(T) * pair;
}
Mesh<4> tesseract_frame(float width) {
Mesh<4> tesseract_edge_frame(float width) {
Mesh<4> edge = tesseract() * glm::vec4(width, width, width, 1);
auto o = glm::vec3(1 - width);
Mesh<4> set = (edge + glm::vec4(+o.x, +o.y, +o.z, 0)) +
(edge + glm::vec4(+o.x, +o.y, -o.z, 0)) +
(edge + glm::vec4(+o.x, -o.y, +o.z, 0)) +
(edge + glm::vec4(+o.x, -o.y, -o.z, 0)) +
(edge + glm::vec4(-o.x, +o.y, +o.z, 0)) +
(edge + glm::vec4(-o.x, +o.y, -o.z, 0)) +
(edge + glm::vec4(-o.x, -o.y, +o.z, 0)) +
(edge + glm::vec4(-o.x, -o.y, -o.z, 0));
(edge + glm::vec4(+o.x, +o.y, -o.z, 0)) +
(edge + glm::vec4(+o.x, -o.y, +o.z, 0)) +
(edge + glm::vec4(+o.x, -o.y, -o.z, 0)) +
(edge + glm::vec4(-o.x, +o.y, +o.z, 0)) +
(edge + glm::vec4(-o.x, +o.y, -o.z, 0)) +
(edge + glm::vec4(-o.x, -o.y, +o.z, 0)) +
(edge + glm::vec4(-o.x, -o.y, -o.z, 0));
return set +
rot_xw(T) * set +
@@ -66,4 +66,21 @@ Mesh<4> tesseract_frame(float width) {
rot_zw(T) * set;
}
Mesh<4> tesseract_face_frame(float width) {
//todo - not even sure what this would mean, but it should be possible.
return Mesh<4>({}, {});
}
Mesh<4> tesseract_cell_frame(float width) {
glm::vec4 off = glm::vec4(0, 0, 0, 1);
Mesh<4> cell = join(cube() * (1 - width), cube());
cell = cell + (cell - glm::vec4(0, 0, 0, width));
Mesh<4> pair = (cell + off) + (cell + off) * -1.f;
return pair +
rot_xw(T) * pair +
rot_yw(T) * pair +
rot_zw(T) * pair;
}
#endif //SIMPLEX_SOLIDS_H

4
simplex/src/main.cpp
View File

@@ -39,7 +39,7 @@ class GLApp : public App {
bool DRAW_WIRE = true;
void init() override {
mesh = tesseract_frame(.125f);
mesh = tesseract_cell_frame(.125f);
//region Uniforms
matrices = {
@@ -114,7 +114,7 @@ class GLApp : public App {
rotor(glm::vec4(1, 0, 0, 0), glm::vec4(0, 0, 1, 0), getTime() / 3) *
1.f;
// matrices.offset = glm::vec4(0,0,0,sin(getTime() / 2));
matrices.offset = glm::vec4(0,0,0,sin(getTime() / 2) * 0.9f);
matrices.view = glm::lookAt(glm::vec3(0, 0, -4), glm::vec3(0, 0, 0), glm::vec3(0, 1, 0));
matrices.proj = glm::perspective(1.f, ratio, 0.1f, 20.0f);