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#include "shaders.hh"
static int u_mode = 0;
static int u_steps = 8;
static float u_sigma = 4.0f;
static void ui()
{
const char* modes[] = { "basic", "vfade", "waves" };
if (ImGui::BeginCombo("mode", modes[u_mode])) {
for (int i = 0; i < (int)COUNTOF(modes); ++i) {
if (ImGui::Selectable(modes[i], i == u_mode)) {
u_mode = i;
}
}
ImGui::EndCombo();
}
ImGui::SliderInt("steps", &u_steps, 1, 8);
ImGui::InputFloat("sigma", &u_sigma);
}
static void uniforms(Shader* shader)
{
GL(glUniform1i(shader->get_required_uniform("u_mode"), u_mode));
GL(glUniform1i(shader->get_required_uniform("u_steps"), u_steps));
GL(glUniform1f(shader->get_required_uniform("u_sigma"), u_sigma));
}
static Shader vfog = {
.path = "vfog.glsl",
.model = MODEL_CUBE,
.ui_fn = ui,
.uf_fn = uniforms,
};
ENABLE_SHADER(vfog);
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