D3DRENDERSTATETYPE

Render states define set-up states for all kinds of vertex and pixel processing. Some render states set up vertex processing, and some set up pixel processing (see Render States). Render states can be saved and restored using stateblocks (see State Blocks Save and Restore State).

typedef enum D3DRENDERSTATETYPE
{
    D3DRS_ZENABLE = 7,
    D3DRS_FILLMODE = 8,
    D3DRS_SHADEMODE = 9,
    D3DRS_ZWRITEENABLE = 14,
    D3DRS_ALPHATESTENABLE = 15,
    D3DRS_LASTPIXEL = 16,
    D3DRS_SRCBLEND = 19,
    D3DRS_DESTBLEND = 20,
    D3DRS_CULLMODE = 22,
    D3DRS_ZFUNC = 23,
    D3DRS_ALPHAREF = 24,
    D3DRS_ALPHAFUNC = 25,
    D3DRS_DITHERENABLE = 26,
    D3DRS_ALPHABLENDENABLE = 27,
    D3DRS_FOGENABLE = 28,
    D3DRS_SPECULARENABLE = 29,
    D3DRS_FOGCOLOR = 34,
    D3DRS_FOGTABLEMODE = 35,
    D3DRS_FOGSTART = 36,
    D3DRS_FOGEND = 37,
    D3DRS_FOGDENSITY = 38,
    D3DRS_RANGEFOGENABLE = 48,
    D3DRS_STENCILENABLE = 52,
    D3DRS_STENCILFAIL = 53,
    D3DRS_STENCILZFAIL = 54,
    D3DRS_STENCILPASS = 55,
    D3DRS_STENCILFUNC = 56,
    D3DRS_STENCILREF = 57,
    D3DRS_STENCILMASK = 58,
    D3DRS_STENCILWRITEMASK = 59,
    D3DRS_TEXTUREFACTOR = 60,
    D3DRS_WRAP0 = 128,
    D3DRS_WRAP1 = 129,
    D3DRS_WRAP2 = 130,
    D3DRS_WRAP3 = 131,
    D3DRS_WRAP4 = 132,
    D3DRS_WRAP5 = 133,
    D3DRS_WRAP6 = 134,
    D3DRS_WRAP7 = 135,
    D3DRS_CLIPPING = 136,
    D3DRS_LIGHTING = 137,
    D3DRS_AMBIENT = 139,
    D3DRS_FOGVERTEXMODE = 140,
    D3DRS_COLORVERTEX = 141,
    D3DRS_LOCALVIEWER = 142,
    D3DRS_NORMALIZENORMALS = 143,
    D3DRS_DIFFUSEMATERIALSOURCE = 145,
    D3DRS_SPECULARMATERIALSOURCE = 146,
    D3DRS_AMBIENTMATERIALSOURCE = 147,
    D3DRS_EMISSIVEMATERIALSOURCE = 148,
    D3DRS_VERTEXBLEND = 151,
    D3DRS_CLIPPLANEENABLE = 152,
    D3DRS_POINTSIZE = 154,
    D3DRS_POINTSIZE_MIN = 155,
    D3DRS_POINTSPRITEENABLE = 156,
    D3DRS_POINTSCALEENABLE = 157,
    D3DRS_POINTSCALE_A = 158,
    D3DRS_POINTSCALE_B = 159,
    D3DRS_POINTSCALE_C = 160,
    D3DRS_MULTISAMPLEANTIALIAS = 161,
    D3DRS_MULTISAMPLEMASK = 162,
    D3DRS_PATCHEDGESTYLE = 163,
    D3DRS_DEBUGMONITORTOKEN = 165,
    D3DRS_POINTSIZE_MAX = 166,
    D3DRS_INDEXEDVERTEXBLENDENABLE = 167,
    D3DRS_COLORWRITEENABLE = 168,
    D3DRS_TWEENFACTOR = 170,
    D3DRS_BLENDOP = 171,
    D3DRS_POSITIONDEGREE = 172,
    D3DRS_NORMALDEGREE = 173,
    D3DRS_SCISSORTESTENABLE = 174,
    D3DRS_SLOPESCALEDEPTHBIAS = 175,
    D3DRS_ANTIALIASEDLINEENABLE = 176,
    D3DRS_MINTESSELLATIONLEVEL = 178,
    D3DRS_MAXTESSELLATIONLEVEL = 179,
    D3DRS_ADAPTIVETESS_X = 180,
    D3DRS_ADAPTIVETESS_Y = 181,
    D3DRS_ADAPTIVETESS_Z = 182,
    D3DRS_ADAPTIVETESS_W = 183,
    D3DRS_ENABLEADAPTIVETESSELLATION = 184,
    D3DRS_TWOSIDEDSTENCILMODE = 185,
    D3DRS_CCW_STENCILFAIL = 186,
    D3DRS_CCW_STENCILZFAIL = 187,
    D3DRS_CCW_STENCILPASS = 188,
    D3DRS_CCW_STENCILFUNC = 189,
    D3DRS_COLORWRITEENABLE1 = 190,
    D3DRS_COLORWRITEENABLE2 = 191,
    D3DRS_COLORWRITEENABLE3 = 192,
    D3DRS_BLENDFACTOR = 193,
    D3DRS_SRGBWRITEENABLE = 194,
    D3DRS_DEPTHBIAS = 195,
    D3DRS_WRAP8 = 198,
    D3DRS_WRAP9 = 199,
    D3DRS_WRAP10 = 200,
    D3DRS_WRAP11 = 201,
    D3DRS_WRAP12 = 202,
    D3DRS_WRAP13 = 203,
    D3DRS_WRAP14 = 204,
    D3DRS_WRAP15 = 205,
    D3DRS_SEPARATEALPHABLENDENABLE = 206,
    D3DRS_SRCBLENDALPHA = 207,
    D3DRS_DESTBLENDALPHA = 208,
    D3DRS_BLENDOPALPHA = 209,
    D3DRS_FORCE_DWORD = 0x7fffffff,
} D3DRENDERSTATETYPE, *LPD3DRENDERSTATETYPE;

Constants

D3DRS_ZENABLE

Depth-buffering state as one member of the D3DZBUFFERTYPE enumerated type. Set this state to D3DZB_TRUE to enable z-buffering, D3DZB_USEW to enable w-buffering, or D3DZB_FALSE to disable depth buffering.

The default value for this render state is D3DZB_TRUE if a depth stencil was created along with the swap chain by setting the EnableAutoDepthStencil member of the D3DPRESENT_PARAMETERS structure to TRUE, and D3DZB_FALSE otherwise.

D3DRS_FILLMODE

One or more members of the D3DFILLMODE enumerated type. The default value is D3DFILL_SOLID.

D3DRS_SHADEMODE

One or more members of the D3DSHADEMODE enumerated type. The default value is D3DSHADE_GOURAUD.

D3DRS_ZWRITEENABLE

TRUE to enable the application to write to the depth buffer. The default value is TRUE. This member enables an application to prevent the system from updating the depth buffer with new depth values. If FALSE, depth comparisons are still made according to the render state D3DRS_ZFUNC, assuming that depth buffering is taking place, but depth values are not written to the buffer.

D3DRS_ALPHATESTENABLE

TRUE to enable per pixel alpha testing. If the test passes, the pixel is processed by the frame buffer. Otherwise, all frame-buffer processing is skipped for the pixel.

The test is done by comparing the incoming alpha value with the reference alpha value, using the comparison function provided by the D3DRS_ALPHAFUNC render state. The reference alpha value is determined by the value set for D3DRS_ALPHAREF. For more information, see Alpha Testing State.

The default value of this parameter is FALSE.

D3DRS_LASTPIXEL

The default value is TRUE, which enables drawing of the last pixel in a line. To prevent drawing of the last pixel, set this value to FALSE. For more information, see Outline and Fill State.

D3DRS_SRCBLEND

One member of the D3DBLEND enumerated type. The default value is D3DBLEND_ONE.

D3DRS_DESTBLEND

One member of the D3DBLEND enumerated type. The default value is D3DBLEND_ZERO.

D3DRS_CULLMODE

Specifies how back-facing triangles are culled, if at all. This can be set to one member of the D3DCULL enumerated type. The default value is D3DCULL_CCW.

D3DRS_ZFUNC

One member of the D3DCMPFUNC enumerated type. The default value is D3DCMP_LESSEQUAL. This member enables an application to accept or reject a pixel, based on its distance from the camera.

The depth value of the pixel is compared with the depth-buffer value. If the depth value of the pixel passes the comparison function, the pixel is written.

The depth value is written to the depth buffer only if the render state is TRUE.

Software rasterizers and many hardware accelerators work faster if the depth test fails, because there is no need to filter and modulate the texture if the pixel is not going to be rendered.

D3DRS_ALPHAREF

Value that specifies a reference alpha value against which pixels are tested when alpha testing is enabled. This is an 8-bit value placed in the low 8 bits of the DWORD render-state value. Values can range from 0x00000000 through 0x000000FF. The default value is 0.

D3DRS_ALPHAFUNC

One member of the D3DCMPFUNC enumerated type. The default value is D3DCMP_ALWAYS. This member enables an application to accept or reject a pixel, based on its alpha value.

D3DRS_DITHERENABLE

TRUE to enable dithering. The default value is FALSE.

D3DRS_ALPHABLENDENABLE

TRUE to enable alpha-blended transparency. The default value is FALSE.

The type of alpha blending is determined by the D3DRS_SRCBLEND and D3DRS_DESTBLEND render states.

D3DRS_FOGENABLE

TRUE to enable fog blending. The default value is FALSE. For more information about using fog blending, see Fog.

D3DRS_SPECULARENABLE

TRUE to enable specular highlights. The default value is FALSE.

Specular highlights are calculated as though every vertex in the object being lit is at the object's origin. This gives the expected results as long as the object is modeled around the origin and the distance from the light to the object is relatively large. In other cases, the results as undefined.

When this member is set to TRUE, the specular color is added to the base color after the texture cascade but before alpha blending.

D3DRS_FOGCOLOR

Value whose type is D3DCOLOR. The default value is 0. For more information about fog color, see Fog Color.

D3DRS_FOGTABLEMODE

The fog formula to be used for pixel fog. Set to one of the members of the D3DFOGMODE enumerated type. The default value is D3DFOG_NONE. For more information about pixel fog, see Pixel Fog.

D3DRS_FOGSTART

Depth at which pixel or vertex fog effects begin for linear fog mode. The default value is 0.0f. Depth is specified in world space for vertex fog and either device space [0.0, 1.0] or world space for pixel fog. For pixel fog, these values are in device space when the system uses z for fog calculations and world-world space when the system is using eye-relative fog (w-fog). For more information, see Fog Parameters and Eye-Relative vs. Z-based Depth.

Values for the this render state are floating-point values. Because the IDirect3DDevice9::SetRenderState method accepts DWORD values, your application must cast a variable that contains the value, as shown in the following code example.

pDevice9->SetRenderState(D3DRS_FOGSTART, 
                         *((DWORD*) (&fFogStart)));

D3DRS_FOGEND

Depth at which pixel or vertex fog effects end for linear fog mode. The default value is 1.0f. Depth is specified in world space for vertex fog and either device space [0.0, 1.0] or world space for pixel fog. For pixel fog, these values are in device space when the system uses z for fog calculations and in world space when the system is using eye-relative fog (w-fog). For more information, see Fog Parameters and Eye-Relative vs. Z-based Depth.

Values for this render state are floating-point values. Because the IDirect3DDevice9::SetRenderState method accepts DWORD values, your application must cast a variable that contains the value, as shown in the following code example.

m_pDevice9->SetRenderState(D3DRS_FOGEND, *((DWORD*) (&fFogEnd)));

D3DRS_FOGDENSITY

Fog density for pixel or vertex fog used in the exponential fog modes (D3DFOG_EXP and D3DFOG_EXP2). Valid density values range from 0.0 through 1.0. The default value is 1.0. For more information, see Fog Parameters.

    m_pDevice9->SetRenderState(D3DRS_FOGDENSITY, *((DWORD*) (&fFogDensity)));

D3DRS_RANGEFOGENABLE

TRUE to enable range-based vertex fog. The default value is FALSE, in which case the system uses depth-based fog. In range-based fog, the distance of an object from the viewer is used to compute fog effects, not the depth of the object (that is, the z-coordinate) in the scene. In range-based fog, all fog methods work as usual, except that they use range instead of depth in the computations.

Range is the correct factor to use for fog computations, but depth is commonly used instead because range is time-consuming to compute and depth is generally already available. Using depth to calculate fog has the undesirable effect of having the fogginess of peripheral objects change as the viewer's eye moves - in this case, the depth changes and the range remains constant.

Because no hardware currently supports per-pixel range-based fog, range correction is offered only for vertex fog.

For more information, see Vertex Fog.

D3DRS_STENCILENABLE

TRUE to enable stenciling, or FALSE to disable stenciling. The default value is FALSE. For more information, see Stencil Buffer Techniques.

D3DRS_STENCILFAIL

Stencil operation to perform if the stencil test fails. Values are from the D3DSTENCILOP enumerated type. The default value is D3DSTENCILOP_KEEP.

D3DRS_STENCILZFAIL

Stencil operation to perform if the stencil test passes and the depth test (z-test) fails. Values are from the D3DSTENCILOP enumerated type. The default value is D3DSTENCILOP_KEEP.

D3DRS_STENCILPASS

Stencil operation to perform if both the stencil and the depth (z) tests pass. Values are from the D3DSTENCILOP enumerated type. The default value is D3DSTENCILOP_KEEP.

D3DRS_STENCILFUNC

Comparison function for the stencil test. Values are from the D3DCMPFUNC enumerated type. The default value is D3DCMP_ALWAYS.

The comparison function is used to compare the reference value to a stencil buffer entry. This comparison applies only to the bits in the reference value and stencil buffer entry that are set in the stencil mask (set by the D3DRS_STENCILMASK render state). If TRUE, the stencil test passes.

D3DRS_STENCILREF

An int reference value for the stencil test. The default value is 0.

D3DRS_STENCILMASK

Mask applied to the reference value and each stencil buffer entry to determine the significant bits for the stencil test. The default mask is 0xFFFFFFFF.

D3DRS_STENCILWRITEMASK

Write mask applied to values written into the stencil buffer. The default mask is 0xFFFFFFFF.

D3DRS_TEXTUREFACTOR

Color used for multiple-texture blending with the D3DTA_TFACTOR texture-blending argument or the D3DTOP_BLENDFACTORALPHA texture-blending operation. The associated value is a D3DCOLOR variable. The default value is opaque white (0xFFFFFFFF).

D3DRS_WRAP0

Texture-wrapping behavior for multiple sets of texture coordinates. Valid values for this render state can be any combination of the D3DWRAPCOORD_0 (or D3DWRAP_U), D3DWRAPCOORD_1 (or D3DWRAP_V), D3DWRAPCOORD_2 (or D3DWRAP_W), and D3DWRAPCOORD_3 flags. These cause the system to wrap in the direction of the first, second, third, and fourth dimensions, sometimes referred to as the s, t, r, and q directions, for a given texture. The default value for this render state is 0 (wrapping disabled in all directions).

D3DRS_WRAP1

See D3DRS_WRAP0.

D3DRS_WRAP2

See D3DRS_WRAP0.

D3DRS_WRAP3

See D3DRS_WRAP0.

D3DRS_WRAP4

See D3DRS_WRAP0.

D3DRS_WRAP5

See D3DRS_WRAP0.

D3DRS_WRAP6

See D3DRS_WRAP0.

D3DRS_WRAP7

See D3DRS_WRAP0.

D3DRS_CLIPPING

TRUE to enable primitive clipping by Direct3D, or FALSE to disable it. The default value is TRUE.

D3DRS_LIGHTING

TRUE to enable Direct3D lighting, or FALSE to disable it. The default value is TRUE. Only vertices that include a vertex normal are properly lit; vertices that do not contain a normal employ a dot product of 0 in all lighting calculations.

D3DRS_AMBIENT

Ambient light color. This value is of type D3DCOLOR. The default value is 0.

D3DRS_FOGVERTEXMODE

Fog formula to be used for vertex fog. Set to one member of the D3DFOGMODE enumerated type. The default value is D3DFOG_NONE.

D3DRS_COLORVERTEX

TRUE to enable per-vertex color or FALSE to disable it. The default value is TRUE. Enabling per-vertex color allows the system to include the color defined for individual vertices in its lighting calculations.

For more information, see the following render states:

D3DRS_DIFFUSEMATERIALSOURCE
D3DRS_SPECULARMATERIALSOURCE
D3DRS_AMBIENTMATERIALSOURCE
D3DRS_EMISSIVEMATERIALSOURCE

D3DRS_LOCALVIEWER

TRUE to enable camera-relative specular highlights, or FALSE to use orthogonal specular highlights. The default value is TRUE. Applications that use orthogonal projection should specify false.

D3DRS_NORMALIZENORMALS

TRUE to enable automatic normalization of vertex normals, or FALSE to disable it. The default value is FALSE. Enabling this feature causes the system to normalize the vertex normals for vertices after transforming them to camera space, which can be computationally time-consuming.

D3DRS_DIFFUSEMATERIALSOURCE

Diffuse color source for lighting calculations. Valid values are members of the D3DMATERIALCOLORSOURCE enumerated type. The default value is D3DMCS_COLOR1. The value for this render state is used only if the D3DRS_COLORVERTEX render state is set to TRUE.

D3DRS_SPECULARMATERIALSOURCE

Specular color source for lighting calculations. Valid values are members of the D3DMATERIALCOLORSOURCE enumerated type. The default value is D3DMCS_COLOR2.

D3DRS_AMBIENTMATERIALSOURCE

Ambient color source for lighting calculations. Valid values are members of the D3DMATERIALCOLORSOURCE enumerated type. The default value is D3DMCS_MATERIAL.

D3DRS_EMISSIVEMATERIALSOURCE

Emissive color source for lighting calculations. Valid values are members of the D3DMATERIALCOLORSOURCE enumerated type. The default value is D3DMCS_MATERIAL.

D3DRS_VERTEXBLEND

Number of matrices to use to perform geometry blending, if any. Valid values are members of the D3DVERTEXBLENDFLAGS enumerated type. The default value is D3DVBF_DISABLE.

D3DRS_CLIPPLANEENABLE

Enables or disables user-defined clipping planes. Valid values are any DWORD in which the status of each bit (set or not set) toggles the activation state of a corresponding user-defined clipping plane. The least significant bit (bit 0) controls the first clipping plane at index 0, and subsequent bits control the activation of clipping planes at higher indexes. If a bit is set, the system applies the appropriate clipping plane during scene rendering. The default value is 0.

The D3DCLIPPLANEn macros are defined to provide a convenient way to enable clipping planes.

D3DRS_POINTSIZE

A float value that specifies the size to use for point size computation in cases where point size is not specified for each vertex. This value is not used when the vertex contains point size. This value is in screen space units if D3DRS_POINTSCALEENABLE is FALSE; otherwise this value is in world space units. The default value is the value a driver returns. If a driver returns 0 or 1, the default value is 64, which allows software point size emulation. Because the IDirect3DDevice9::SetRenderState method accepts DWORD values, your application must cast a variable that contains the value, as shown in the following code example.

m_pDevice9->SetRenderState(D3DRS_POINTSIZE, *((DWORD*)&pointSize));

D3DRS_POINTSIZE_MIN

A float value that specifies the minimum size of point primitives. Point primitives are clamped to this size during rendering. Setting this to values smaller than 1.0 results in points dropping out when the point does not cover a pixel center and antialiasing is disabled or being rendered with reduced intensity when antialiasing is enabled. The default value is 1.0f. The range for this value is greater than or equal to 0.0f. Because the IDirect3DDevice9::SetRenderState method accepts DWORD values, your application must cast a variable that contains the value, as shown in the following code example.

m_pDevice9->SetRenderState(D3DRS_POINTSIZE_MIN, *((DWORD*)&pointSizeMin));

D3DRS_POINTSPRITEENABLE

bool value. When TRUE, texture coordinates of point primitives are set so that full textures are mapped on each point. When FALSE, the vertex texture coordinates are used for the entire point. The default value is FALSE. You can achieve DirectX 7 style single-pixel points by setting D3DRS_POINTSCALEENABLE to FALSE and D3DRS_POINTSIZE to 1.0, which are the default values.

D3DRS_POINTSCALEENABLE

bool value that controls computation of size for point primitives. When TRUE, the point size is interpreted as a camera space value and is scaled by the distance function and the frustum to viewport y-axis scaling to compute the final screen-space point size. When FALSE, the point size is interpreted as screen space and used directly. The default value is FALSE.

D3DRS_POINTSCALE_A

A float value that controls for distance-based size attenuation for point primitives. Active only when D3DRS_POINTSCALEENABLE is TRUE. The default value is 1.0f. The range for this value is greater than or equal to 0.0f. Because the IDirect3DDevice9::SetRenderState method accepts DWORD values, your application must cast a variable that contains the value, as shown in the following code example.

m_pDevice9->SetRenderState(D3DRS_POINTSCALE_A, *((DWORD*)&pointScaleA));

D3DRS_POINTSCALE_B

A float value that controls for distance-based size attenuation for point primitives. Active only when D3DRS_POINTSCALEENABLE is TRUE. The default value is 0.0f. The range for this value is greater than or equal to 0.0f. Because the IDirect3DDevice9::SetRenderState method accepts DWORD values, your application must cast a variable that contains the value, as shown in the following code example.

m_pDevice9->SetRenderState(D3DRS_POINTSCALE_B, *((DWORD*)&pointScaleB));

D3DRS_POINTSCALE_C

m_pDevice9->SetRenderState(D3DRS_POINTSCALE_C, *((DWORD*)&pointScaleC));

D3DRS_MULTISAMPLEANTIALIAS

bool value that determines how individual samples are computed when using a multisample render-target buffer. When set to TRUE, the multiple samples are computed so that full-scene antialiasing is performed by sampling at different sample positions for each multiple sample. When set to FALSE, the multiple samples are all written with the same sample value, sampled at the pixel center, which allows non-antialiased rendering to a multisample buffer. This render state has no effect when rendering to a single sample buffer. The default value is TRUE.

D3DRS_MULTISAMPLEMASK

Each bit in this mask, starting at the least significant bit (LSB), controls modification of one of the samples in a multisample render target. Thus, for an 8-sample render target, the low byte contains the eight write enables for each of the eight samples. This render state has no effect when rendering to a single sample buffer. The default value is 0xFFFFFFFF.

This render state enables use of a multisample buffer as an accumulation buffer, doing multipass rendering of geometry where each pass updates a subset of samples.

If there are n multisamples and k enabled samples, the resulting intensity of the rendered image should be k/n. Each component RGB of every pixel is factored by k/n.

D3DRS_PATCHEDGESTYLE

Sets whether patch edges will use float style tessellation. Possible values are defined by the D3DPATCHEDGESTYLE enumerated type. The default value is D3DPATCHEDGE_DISCRETE.

D3DRS_DEBUGMONITORTOKEN

Set only for debugging the monitor. Possible values are defined by the D3DDEBUGMONITORTOKENS enumerated type. Note that if D3DRS_DEBUGMONITORTOKEN is set, the call is treated as passing a token to the debug monitor. For example, if - after passing D3DDMT_ENABLE or D3DDMT_DISABLE to D3DRS_DEBUGMONITORTOKEN - other token values are passed in, the state (enabled or disabled) of the debug monitor will still persist.

This state is only useful for debug builds. The debug monitor defaults to D3DDMT_ENABLE.

D3DRS_POINTSIZE_MAX

A float value that specifies the maximum size to which point sprites will be clamped. The value must be less than or equal to the MaxPointSize member of D3DCAPS9 and greater than or equal to D3DRS_POINTSIZE_MIN. The default value is 64.0. Because the IDirect3DDevice9::SetRenderState method accepts DWORD values, your application must cast a variable that contains the value, as shown in the following code example.

m_pDevice9->SetRenderState(D3DRS_PONTSIZE_MAX, *((DWORD*)&pointSizeMax));

D3DRS_INDEXEDVERTEXBLENDENABLE

bool value that enables or disables indexed vertex blending. The default value is FALSE. When set to TRUE, indexed vertex blending is enabled. When set to FALSE, indexed vertex blending is disabled. If this render state is enabled, the user must pass matrix indices as a packed DWORDwith every vertex. When the render state is disabled and vertex blending is enabled through the D3DRS_VERTEXBLEND state, it is equivalent to having matrix indices 0, 1, 2, 3 in every vertex.

D3DRS_COLORWRITEENABLE

UINT value that enables a per-channel write for the render-target color buffer. A set bit results in the color channel being updated during 3D rendering. A clear bit results in the color channel being unaffected. This functionality is available if the D3DPMISCCAPS_COLORWRITEENABLE capabilities bit is set in the PrimitiveMiscCaps member of the D3DCAPS9 structure for the device. This render state does not affect the clear operation. The default value is 0x0000000F.

Valid values for this render state can be any combination of the D3DCOLORWRITEENABLE_ALPHA, D3DCOLORWRITEENABLE_BLUE, D3DCOLORWRITEENABLE_GREEN, or D3DCOLORWRITEENABLE_RED flags.

D3DRS_TWEENFACTOR

A float value that controls the tween factor. The default value is 0.0f. Because the IDirect3DDevice9::SetRenderState method accepts DWORD values, your application must cast a variable that contains the value, as shown in the following code example.

m_pDevice9->SetRenderState(D3DRS_TWEENFACTOR, *((DWORD*)&TweenFactor));

D3DRS_BLENDOP

Value used to select the arithmetic operation applied when the alpha blending render state, D3DRS_ALPHABLENDENABLE, is set to TRUE. Valid values are defined by the D3DBLENDOP enumerated type. The default value is D3DBLENDOP_ADD.

If the D3DPMISCCAPS_BLENDOP device capability is not supported, then D3DBLENDOP_ADD is performed.

D3DRS_POSITIONDEGREE

N-patch position interpolation degree. The values can be D3DDEGREE_CUBIC (default) or D3DDEGREE_LINEAR. For more information, see D3DDEGREETYPE.

D3DRS_NORMALDEGREE

N-patch normal interpolation degree. The values can be D3DDEGREE_LINEAR (default) or D3DDEGREE_QUADRATIC. For more information, see D3DDEGREETYPE.

D3DRS_SCISSORTESTENABLE

TRUE to enable scissor testing and FALSE to disable it. The default value is FALSE.

D3DRS_SLOPESCALEDEPTHBIAS

Used to determine how much bias can be applied to co-planar primitives to reduce z-fighting. The default value is 0.

bias = (max * D3DRS_SLOPESCALEDEPTHBIAS) + D3DRS_DEPTHBIAS.

where max is the maximum depth slope of the triangle being rendered.

D3DRS_ANTIALIASEDLINEENABLE

TRUE to enable line antialiasing, FALSE to disable line antialiasing. The default value is FALSE.

When rendering to a multisample render target, D3DRS_ANTIALIASEDLINEENABLE is ignored and all lines are rendered aliased. Use ID3DXLine for antialiased line rendering in a multisample render target.

D3DRS_MINTESSELLATIONLEVEL

Minimum tessellation level. The default value is 1.0f. See Tessellation.

D3DRS_MAXTESSELLATIONLEVEL

Maximum tessellation level. The default value is 1.0f. See Tessellation.

D3DRS_ADAPTIVETESS_X

Amount to adaptively tessellate, in the x direction. Default value is 0.0f. See Adaptive Tessellation.

D3DRS_ADAPTIVETESS_Y

Amount to adaptively tessellate, in the y direction. Default value is 0.0f. See Adaptive_Tessellation.

D3DRS_ADAPTIVETESS_Z

Amount to adaptively tessellate, in the z direction. Default value is 1.0f. See Adaptive_Tessellation.

D3DRS_ADAPTIVETESS_W

Amount to adaptively tessellate, in the w direction. Default value is 0.0f. See Adaptive_Tessellation.

D3DRS_ENABLEADAPTIVETESSELLATION

TRUE to enable adaptive tessellation, FALSE to disable it. The default value is FALSE. See Adaptive_Tessellation.

D3DRS_TWOSIDEDSTENCILMODE

TRUE enables two-sided stenciling, FALSE disables it. The default value is FALSE. The application should set D3DRS_CULLMODE to D3DCULL_NONE to enable two-sided stencil mode. If the triangle winding order is clockwise, the D3DRS_STENCIL* operations will be used. If the winding order is counterclockwise, the D3DRS_CCW_STENCIL* operations will be used.

To see if two-sided stencil is supported, check the StencilCaps member of D3DCAPS9 for D3DSTENCILCAPS_TWOSIDED. See also D3DSTENCILCAPS.

D3DRS_CCW_STENCILFAIL

Stencil operation to perform if CCW stencil test fails. Values are from the D3DSTENCILOP enumerated type. The default value is D3DSTENCILOP_KEEP.

D3DRS_CCW_STENCILZFAIL

Stencil operation to perform if CCW stencil test passes and z-test fails. Values are from the D3DSTENCILOP enumerated type. The default value is D3DSTENCILOP_KEEP.

D3DRS_CCW_STENCILPASS

Stencil operation to perform if both CCW stencil and z-tests pass. Values are from the D3DSTENCILOP enumerated type. The default value is D3DSTENCILOP_KEEP.

D3DRS_CCW_STENCILFUNC

The comparison function. CCW stencil test passes if ((ref & mask) stencil function (stencil & mask)) is true. Values are from the D3DCMPFUNC enumerated type. The default value is D3DCMP_ALWAYS.

D3DRS_COLORWRITEENABLE1

Additional ColorWriteEnable values for the devices. See D3DRS_COLORWRITEENABLE. This functionality is available if the D3DPMISCCAPS_INDEPENDENTWRITEMASKS capabilities bit is set in the PrimitiveMiscCaps member of the D3DCAPS9 structure for the device. The default value is 0x0000000f.

D3DRS_COLORWRITEENABLE2

D3DRS_COLORWRITEENABLE3

D3DRS_BLENDFACTOR

D3DCOLOR used for a constant blend-factor during alpha blending. This functionality is available if the D3DPBLENDCAPS_BLENDFACTOR capabilities bit is set in the SrcBlendCaps member of D3DCAPS9 or the DestBlendCaps member of D3DCAPS9. See D3DRENDERSTATETYPE. The default value is 0xffffffff.

D3DRS_SRGBWRITEENABLE

Enable render-target writes to be gamma corrected to sRGB. The format must expose D3DUSAGE_SRGBWRITE. The default value is 0.

D3DRS_DEPTHBIAS

A floating-point value that is used for comparison of depth values. See Depth Bias. The default value is 0.

D3DRS_WRAP8

See D3DRS_WRAP0.

D3DRS_WRAP9

See D3DRS_WRAP0.

D3DRS_WRAP10

See D3DRS_WRAP0.

D3DRS_WRAP11

See D3DRS_WRAP0.

D3DRS_WRAP12

See D3DRS_WRAP0.

D3DRS_WRAP13

See D3DRS_WRAP0.

D3DRS_WRAP14

See D3DRS_WRAP0.

D3DRS_WRAP15

See D3DRS_WRAP0.

D3DRS_SEPARATEALPHABLENDENABLE

TRUE enables the separate blend mode for the alpha channel. The default value is FALSE.

When set to false, the render-target blending factors and operations applied to alpha are forced to be the same as those defined for color. This mode is effectively hardwired to false on implementations that don't set the cap D3DPMISCCAPS_SEPARATEALPHABLEND. See D3DPMISCCAPS.

The type of separate alpha blending is determined by the D3DRS_SRCBLENDALPHA and D3DRS_DESTBLENDALPHA render states.

D3DRS_SRCBLENDALPHA

One member of the D3DBLEND enumerated type. This value is ignored unless D3DRS_SEPARATEALPHAENABLE is true. The default value is D3DBLEND_ONE.

D3DRS_DESTBLENDALPHA

One member of the D3DBLEND enumerated type. This value is ignored unless D3DRS_SEPARATEALPHAENABLE is true. The default value is D3DBLEND_ZERO.

D3DRS_BLENDOPALPHA

Value used to select the arithmetic operation applied to separate alpha blending when the render state, D3DRS_SEPARATEALPHABLENDENABLE, is set to TRUE.

Valid values are defined by the D3DBLENDOP enumerated type. The default value is D3DBLENDOP_ADD.

If the D3DPMISCCAPS_BLENDOP device capability is not supported, then D3DBLENDOP_ADD is performed. See D3DPMISCCAPS.

D3DRS_FORCE_DWORD

Forces this enumeration to compile to 32 bits in size. Without this value, some compilers would allow this enumeration to compile to a size other than 32 bits. This value is not used.

Remarks

Render States
ps_1_1 to ps_1_3	4 texture samplers

Direct3D defines the D3DRENDERSTATE_WRAPBIAS constant as a convenience for applications to enable or disable texture wrapping, based on the zero-based integer of a texture coordinate set (rather than explicitly using one of the D3DRS_WRAP n state values). Add the D3DRENDERSTATE_WRAPBIAS value to the zero-based index of a texture coordinate set to calculate the D3DRS_WRAP n value that corresponds to that index, as shown in the following example.

// Enable U/V wrapping for textures that use the texture 
// coordinate set at the index within the dwIndex variable
    
HRESULT hr = pd3dDevice->SetRenderState(
dwIndex + D3DRENDERSTATE_WRAPBIAS,  
D3DWRAPCOORD_0 | D3DWRAPCOORD_1);
     
// If dwIndex is 3, the value that results from 
// the addition equals D3DRS_WRAP3 (131)

D3DRENDERSTATETYPE

Constants

Remarks

See Also