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fix extended blocks culling and lighting at chunk boundaries

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This commit is contained in:
eliotbyte 2025-10-24 21:57:50 +03:00
parent 1eeb59de26
commit 27ce16db27
3 changed files with 19 additions and 6 deletions
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14
src/graphics/render/BlocksRenderer.cpp
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@ -104,11 +104,14 @@ void BlocksRenderer::vertexAO(
const glm::vec3& coord,
float u, float v,
const glm::vec4& tint,
float normalHalfLen,
const glm::vec3& axisX,
const glm::vec3& axisY,
const glm::vec3& axisZ
) {
auto pos = coord+axisZ*0.5f+(axisX+axisY)*0.5f;
// Sample AO in world-voxel grid with a slightly longer reach along the normal
// to avoid sampling the same chunk voxel when faces reside over neighbor chunk.
auto pos = coord + axisZ * normalHalfLen + (axisX + axisY) * 0.5f;
auto light = pickSoftLight(
glm::ivec3(std::round(pos.x), std::round(pos.y), std::round(pos.z)),
axisX,
@ -140,10 +143,11 @@ void BlocksRenderer::faceAO(
auto axisZ = glm::normalize(Z);
glm::vec4 tint(d);
vertexAO(coord + (-X - Y + Z) * s, region.u1, region.v1, tint, axisX, axisY, axisZ);
vertexAO(coord + ( X - Y + Z) * s, region.u2, region.v1, tint, axisX, axisY, axisZ);
vertexAO(coord + ( X + Y + Z) * s, region.u2, region.v2, tint, axisX, axisY, axisZ);
vertexAO(coord + (-X + Y + Z) * s, region.u1, region.v2, tint, axisX, axisY, axisZ);
const float nh = 0.75f; // push AO sample a bit farther along normal
vertexAO(coord + (-X - Y + Z) * s, region.u1, region.v1, tint, nh, axisX, axisY, axisZ);
vertexAO(coord + ( X - Y + Z) * s, region.u2, region.v1, tint, nh, axisX, axisY, axisZ);
vertexAO(coord + ( X + Y + Z) * s, region.u2, region.v2, tint, nh, axisX, axisY, axisZ);
vertexAO(coord + (-X + Y + Z) * s, region.u1, region.v2, tint, nh, axisX, axisY, axisZ);
} else {
auto axisZ = glm::normalize(Z);
glm::vec4 tint(1.0f);