allemang.d/toddcox-visualize
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vao pointer helper

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This commit is contained in:
David
2020-03-10 13:49:38 -04:00
parent 54ea5dbd53
commit b504e5b7c3
2 changed files with 43 additions and 18 deletions
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28
vis/src/main.cpp
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@@ -29,17 +29,17 @@ struct Matrices {
};
template<unsigned N, class V>
struct BufferMesh {
struct Drawable {
GLenum mode{};
cgl::vertexarray vao{};
cgl::buffer<Primitive<N>> ibo{};
cgl::buffer<V> vbo{};
BufferMesh(GLenum mode) : mode(mode), vao(), ibo(), vbo() {}
Drawable(GLenum mode) : mode(mode), vao(), ibo(), vbo() {}
BufferMesh(BufferMesh &) = delete;
Drawable(Drawable &) = delete;
BufferMesh(BufferMesh &&) = delete;
Drawable(Drawable &&) = delete;
void draw_deferred() {
vao.bound([&]() {
@@ -152,9 +152,6 @@ void run(GLFWwindow *window) {
auto group = tc::group::F4();
auto wire_data = merge(poly_parts<2>(group));
auto wires = BufferMesh<2, float>(GL_LINES);
wires.ibo.put(wire_data.prims);
const auto slice_dark = glm::vec3(.5, .3, .7);
const auto slice_light = glm::vec3(.9, .9, .95);
@@ -171,19 +168,14 @@ void run(GLFWwindow *window) {
}
}
BufferMesh<4, glm::vec3> slices(GL_POINTS);
Drawable<2, float> wires(GL_LINES);
wires.ibo.put(wire_data.prims);
Drawable<4, glm::vec3> slices(GL_POINTS);
slices.ibo.put(slice_data.prims);
slices.vbo.put(slice_colors);
slices.vao.bound([&]() {
slices.ibo.bound(GL_ARRAY_BUFFER, [&]() {
glEnableVertexAttribArray(0);
glVertexAttribIPointer(0, 4, GL_UNSIGNED_INT, 0, nullptr);
slices.vbo.bound(GL_ARRAY_BUFFER, [&]() {
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 0, nullptr);
});
});
});
slices.vao.ipointer(0, slices.ibo, 4, GL_UNSIGNED_INT);
slices.vao.pointer(1, slices.vbo, 3, GL_FLOAT);
auto vbo = cgl::buffer<glm::vec4>(points(group));
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 1, vbo);