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Graphics/SkyboxBackground: Add movement scaler 

Former-commit-id: 02682210b2b3d4b0cf27c6dd8cf171a025a92701
This commit is contained in:
Lynix 2015-12-10 14:08:09 +01:00
parent 11abcc7da4
commit 91f778dd89
3 changed files with 51 additions and 4 deletions
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8
include/Nazara/Graphics/SkyboxBackground.hpp
View File

@ -32,11 +32,15 @@ namespace Nz
void Draw(const AbstractViewer* viewer) const;
BackgroundType GetBackgroundType() const;
BackgroundType GetBackgroundType() const override;
inline const Vector3f& GetMovementOffset() const;
inline float GetMovementScale() const;
inline const TextureRef& GetTexture() const;
inline TextureSampler& GetTextureSampler();
inline const TextureSampler& GetTextureSampler() const;
inline void SetMovementOffset(const Vector3f& offset);
inline void SetMovementScale(float scale);
inline void SetTexture(TextureRef cubemapTexture);
inline void SetTextureSampler(const TextureSampler& sampler);
@ -48,6 +52,8 @@ namespace Nz
TextureRef m_texture;
TextureSampler m_sampler;
Vector3f m_movementOffset;
float m_movementScale;
};
}

24
include/Nazara/Graphics/SkyboxBackground.inl
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@ -7,6 +7,16 @@
namespace Nz
{
inline const Vector3f& Nz::SkyboxBackground::GetMovementOffset() const
{
return m_movementOffset;
}
inline float SkyboxBackground::GetMovementScale() const
{
return m_movementScale;
}
inline const TextureRef& SkyboxBackground::GetTexture() const
{
return m_texture;
@ -22,6 +32,20 @@ namespace Nz
return m_sampler;
}
inline void SkyboxBackground::SetMovementOffset(const Vector3f& offset)
{
NazaraAssert(std::isfinite(offset.x) && std::isfinite(offset.y) && std::isfinite(offset.z), "Offset must be a finite vector");
m_movementOffset = offset;
}
inline void SkyboxBackground::SetMovementScale(float scale)
{
NazaraAssert(std::isfinite(scale), "Scale must be a finite value");
m_movementScale = scale;
}
inline void SkyboxBackground::SetTexture(TextureRef cubemapTexture)
{
NazaraAssert(!cubemapTexture || cubemapTexture->IsValid(), "Invalid texture");

23
src/Nazara/Graphics/SkyboxBackground.cpp
View File

@ -22,9 +22,11 @@ namespace Nz
static VertexBufferRef s_vertexBuffer;
}
SkyboxBackground::SkyboxBackground(TextureRef cubemapTexture)
SkyboxBackground::SkyboxBackground(TextureRef cubemapTexture) :
m_movementOffset(Vector3f::Zero()),
m_movementScale(0.f)
{
m_sampler.SetWrapMode(SamplerWrap_Clamp); // Nécessaire pour ne pas voir les côtés
m_sampler.SetWrapMode(SamplerWrap_Clamp); // We don't want to see any beam
SetTexture(std::move(cubemapTexture));
}
@ -34,9 +36,24 @@ namespace Nz
Matrix4f skyboxMatrix(viewer->GetViewMatrix());
skyboxMatrix.SetTranslation(Vector3f::Zero());
float zNear = viewer->GetZNear();
constexpr float movementLimit = 0.05f;
Vector3f offset = (viewer->GetEyePosition() - m_movementOffset) * -m_movementScale;
offset.x = Clamp(offset.x, -movementLimit, movementLimit);
offset.y = Clamp(offset.y, -movementLimit, movementLimit);
offset.z = Clamp(offset.z, -movementLimit, movementLimit);
offset *= zNear;
Matrix4f world;
world.MakeIdentity();
world.SetScale(Vector3f(zNear));
world.SetTranslation(offset);
Renderer::SetIndexBuffer(s_indexBuffer);
Renderer::SetMatrix(MatrixType_View, skyboxMatrix);
Renderer::SetMatrix(MatrixType_World, Matrix4f::Scale(Vector3f(viewer->GetZNear())));
Renderer::SetMatrix(MatrixType_World, world);
Renderer::SetRenderStates(s_renderStates);
Renderer::SetShader(s_shader);
Renderer::SetTexture(0, m_texture);