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- 新增Math库: Vector2/3/4, Matrix3/4, Quaternion, Transform, Color等 - 新增测试框架: Google Test (gtest) - 新增140个单元测试，覆盖Vector, Matrix, Quaternion, Geometry - VolumeRenderer支持vcpkg的NanoVDB - 添加TESTING.md测试文档
50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
#include "Math/Color.h"
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namespace XCEngine {
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namespace Math {
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Color Color::Lerp(const Color& a, const Color& b, float t) {
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t = std::clamp(t, 0.0f, 1.0f);
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return Color(
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a.r + (b.r - a.r) * t,
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a.g + (b.g - a.g) * t,
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a.b + (b.b - a.b) * t,
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a.a + (b.a - a.a) * t
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);
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}
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uint32_t Color::ToRGBA() const {
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uint32_t r = static_cast<uint32_t>(std::clamp(r * 255.0f, 0.0f, 255.0f));
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uint32_t g = static_cast<uint32_t>(std::clamp(g * 255.0f, 0.0f, 255.0f));
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uint32_t b = static_cast<uint32_t>(std::clamp(b * 255.0f, 0.0f, 255.0f));
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uint32_t a = static_cast<uint32_t>(std::clamp(a * 255.0f, 0.0f, 255.0f));
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return (r << 24) | (g << 16) | (b << 8) | a;
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}
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Vector3 Color::ToVector3() const {
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return Vector3(r, g, b);
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}
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Vector4 Color::ToVector4() const {
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return Vector4(r, g, b, a);
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}
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Color Color::operator+(const Color& other) const {
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return Color(r + other.r, g + other.g, b + other.b, a + other.a);
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}
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Color Color::operator-(const Color& other) const {
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return Color(r - other.r, g - other.g, b - other.b, a - other.a);
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}
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Color Color::operator*(float scalar) const {
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return Color(r * scalar, g * scalar, b * scalar, a * scalar);
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}
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Color Color::operator/(float scalar) const {
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return Color(r / scalar, g / scalar, b / scalar, a / scalar);
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}
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} // namespace Math
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} // namespace XCEngine
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