memset(&m_Light, 0, sizeof(D3DLIGHT9));
m_Light.Type = D3DLIGHT_POINT;
m_Light.Diffuse.a = 0.0f;
m_Light.Diffuse.r = 1.0f;
m_Light.Diffuse.g = 1.0f;
m_Light.Diffuse.b = 1.0f;
m_Light.Ambient = m_Light.Diffuse;
m_Light.Specular.r = 1.0f;
m_Light.Specular.g = 1.0f;
m_Light.Specular.b = 1.0f;
m_Light.Position.x = 0.0f;
m_Light.Position.y = 0.0f;
m_Light.Position.z = -50.0f;
m_Light.Range = 1000.0f;
m_Light.Attenuation1 = 1.0f;
hr = D3D9DEVICE()->SetLight(0, &m_Light);
hr = D3D9DEVICE()->LightEnable( 0, true);
hr = D3D9DEVICE()->SetRenderState(D3DRS_LIGHTING, true);
hr = D3D9DEVICE()->SetRenderState(D3DRS_AMBIENT, D3DCOLOR_XRGB(128, 128, 128));
hr = D3D9DEVICE()->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_MODULATE);
hr = D3D9DEVICE()->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_DIFFUSE);
hr = D3D9DEVICE()->SetTextureStageState(0, D3DTSS_COLORARG2, D3DTA_CURRENT);
How to the light a mesh properly
Author
I created a simple mesh using the D3DXLoadMeshFromXInMemory() function. The mesh .x file contains normals data.
I set up the lighting as follows :
The mesh has no texture, only a single material has been applied to it.
The object is rendered with the right color but it seems to be affected only by the ambient light setup. When I rotate the object (placed at the origin) the color doesn't change as it should have.
I loaded the same file with DX mesh viewer and there the light had the desired effects.
What am I doing wrong here ?
thx.
P.S
when I change m_Light.Attenuation1 = 1.0f; to m_Light.Attenuation0 = 1.0f; the mesh is rendered with the white color, why is that ???
Author
I set the mesh's material , exactly as shown in SDK examples.
The mesh has only one material and no texture applied.
The mesh has only one material and no texture applied.
This topic is closed to new replies.
Advertisement
Popular Topics
Advertisement
