西风逍遥游andCursor Agent
59b2ebabf1
Add height-map driven POM on the default mesh3d / mesh3d_clustered PBR path so brick/stone materials get fake depth without tessellation. - GLSL: parallax_map.glsl (adaptive steep march + linear refinement) - API: Renderable3D::setHeightTexture / setParallax; scale=0 keeps old UVs - Descriptor binding for height sampler; UBO parallax vec4 appended - Docs + CPU math tests + GPU pixel-diff coverage Co-authored-by: Cursor Agent <cursoragent@cursor.com>
47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
#include "zeroerr/assert.h"
|
|
#include "zeroerr/unittest.h"
|
|
|
|
#include <cmath>
|
|
|
|
#include "graphics/ParallaxMap.h"
|
|
|
|
using eve::graphics::ParallaxParams;
|
|
using eve::graphics::clampParallaxParams;
|
|
using eve::graphics::parallaxOffsetUV;
|
|
|
|
TEST_CASE("ParallaxMap.scaleZeroIsIdentity") {
|
|
float ou = -1.f, ov = -1.f;
|
|
parallaxOffsetUV(0.4f, 0.6f, 0.2f, 0.5f, -0.3f, 0.8f, 0.f, ou, ov);
|
|
CHECK(std::fabs(ou - 0.4f) < 1e-6f);
|
|
CHECK(std::fabs(ov - 0.6f) < 1e-6f);
|
|
}
|
|
|
|
TEST_CASE("ParallaxMap.heightDisplacesTowardViewXY") {
|
|
// Low height → deep → larger displacement along -viewXY.
|
|
float ouLo = 0.f, ovLo = 0.f;
|
|
float ouHi = 0.f, ovHi = 0.f;
|
|
parallaxOffsetUV(0.5f, 0.5f, 0.0f, 0.4f, 0.0f, 0.9f, 0.1f, ouLo, ovLo);
|
|
parallaxOffsetUV(0.5f, 0.5f, 1.0f, 0.4f, 0.0f, 0.9f, 0.1f, ouHi, ovHi);
|
|
CHECK(ouLo < ouHi); // deeper surface shifts UV more opposite +viewX
|
|
CHECK(std::fabs(ovLo - 0.5f) < 1e-5f);
|
|
CHECK(std::fabs(ovHi - 0.5f) < 1e-5f);
|
|
}
|
|
|
|
TEST_CASE("ParallaxMap.clampParams") {
|
|
ParallaxParams p;
|
|
p.scale = 1.f;
|
|
p.minLayers = 0.f;
|
|
p.maxLayers = 100.f;
|
|
clampParallaxParams(p);
|
|
CHECK(p.scale == 0.25f);
|
|
CHECK(p.minLayers == 1.f);
|
|
CHECK(p.maxLayers == 64.f);
|
|
|
|
p.scale = -1.f;
|
|
p.minLayers = 16.f;
|
|
p.maxLayers = 8.f;
|
|
clampParallaxParams(p);
|
|
CHECK(p.scale == 0.f);
|
|
CHECK(p.maxLayers == 16.f);
|
|
}
|