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optimize Skybox

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This commit is contained in:
MihailRis 2024-11-04 15:25:55 +03:00
parent 1717b74042
commit 22cb3acd11
2 changed files with 37 additions and 17 deletions
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47
src/graphics/render/Skybox.cpp
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@ -138,6 +138,7 @@ void Skybox::draw(
}
void Skybox::refresh(const DrawContext& pctx, float t, float mie, uint quality) {
frameid++;
float dayTime = t;
DrawContext ctx = pctx.sub();
ctx.setDepthMask(false);
@ -152,7 +153,31 @@ void Skybox::refresh(const DrawContext& pctx, float t, float mie, uint quality)
glActiveTexture(GL_TEXTURE1);
cubemap->bind();
shader->use();
t *= M_PI*2.0f;
lightDir = glm::normalize(glm::vec3(sin(t), -cos(t), 0.0f));
shader->uniform1i("u_quality", quality);
shader->uniform1f("u_mie", mie);
shader->uniform1f("u_fog", mie - 1.0f);
shader->uniform3f("u_lightDir", lightDir);
shader->uniform1f("u_dayTime", dayTime);
if (glm::abs(mie-prevMie) + glm::abs(t-prevT) >= 0.01) {
for (uint face = 0; face < 6; face++) {
refreshFace(face, cubemap);
}
} else {
uint face = frameid % 6;
refreshFace(face, cubemap);
}
prevMie = mie;
prevT = t;
cubemap->unbind();
glActiveTexture(GL_TEXTURE0);
}
void Skybox::refreshFace(uint face, Cubemap* cubemap) {
const glm::vec3 xaxs[] = {
{0.0f, 0.0f, -1.0f},
{0.0f, 0.0f, 1.0f},
@ -181,23 +206,11 @@ void Skybox::refresh(const DrawContext& pctx, float t, float mie, uint quality)
{0.0f, 0.0f, -1.0f},
{0.0f, 0.0f, 1.0f},
};
t *= M_PI*2.0f;
lightDir = glm::normalize(glm::vec3(sin(t), -cos(t), 0.0f));
shader->uniform1i("u_quality", quality);
shader->uniform1f("u_mie", mie);
shader->uniform1f("u_fog", mie - 1.0f);
shader->uniform3f("u_lightDir", lightDir);
shader->uniform1f("u_dayTime", dayTime);
for (uint face = 0; face < 6; face++) {
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, cubemap->getId(), 0);
shader->uniform3f("u_xaxis", xaxs[face]);
shader->uniform3f("u_yaxis", yaxs[face]);
shader->uniform3f("u_zaxis", zaxs[face]);
mesh->draw();
}
cubemap->unbind();
glActiveTexture(GL_TEXTURE0);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, cubemap->getId(), 0);
shader->uniform3f("u_xaxis", xaxs[face]);
shader->uniform3f("u_yaxis", yaxs[face]);
shader->uniform3f("u_zaxis", zaxs[face]);
mesh->draw();
}
void Skybox::bind() const {