Hi,
ich benutze den untenstehenden Shader für mein Terrain. Jetzt versuche ich schon seit mehreren Tagen verzweifelt, ein Shadowmap einzufügen. Das heißt, eine TGA-file mit Alphakanal als oberste Ebene, die nicht gekachelt wird, sondern nur einmal über das ganze Terrain gelegt wird, um statische Schatten von, zB. Bäumen und Gebäuden darzustellen. Ich wär sehr froh, wenn mir jemand helfen könnte.

Stefan

Code:

---

 

bmap alphamap = <blendmap3.tga>;

material mat_terrain_multitexture
 {

Skin1 = alphamap;


	effect=
	"
		
		texture entSkin1;//grass
		texture entSkin2;//dreck
		texture entSkin3;//stein
		texture mtlSkin1;//alphamap

		matrix matWorldViewProj;
		matrix matWorld;
		matrix matWorldView;

		vector vecSunDir;
		vector vecDiffuse;
		vector vecAmbient;
		vector vecLight;
		vector vecFog;
		vector vecSkill41;

		



technique multitextureps11
		{
	 		pass p0
			{
				texture[0]=<entSkin1>;
				texture[1]=<entSkin2>;
				texture[2]=<entSkin3>;
				texture[3]=<mtlSkin1>;
				

				magFilter[0]=linear;
				minFilter[0]=linear;
				mipFilter[0]=linear;

				magFilter[1]=linear;
				minFilter[1]=linear;
				mipFilter[1]=linear;

				magFilter[2]=linear;
				minFilter[2]=linear;
				mipFilter[2]=linear;

				magFilter[3]=linear;
				minFilter[3]=linear;
				mipFilter[3]=linear;

				

				zWriteEnable=true;

				vertexShaderConstant[0]=<matWorldViewProj>;
				vertexShaderConstant[4]=<matWorld>;
				vertexShaderConstant[8]=<matWorldView>;

				vertexShaderConstant[16]=<vecSunDir>;
				vertexShaderConstant[17]=<vecDiffuse>;
				vertexShaderConstant[18]=<vecAmbient>;
				vertexShaderConstant[19]=<vecLight>;
				vertexShaderConstant[20]=<vecFog>;

				vertexShaderConstant[64]=<vecSkill41>; //(u_scale1, v_scale1, u_scale2, v_scale2)
				vertexShaderConstant[65]=(20.0f,15.0f,0.0f,0.0f); // !NEW! -> (u_scale3, v_scale3, 0, 0)
								
				vertexShaderConstant[95]=(0.0f,0.0f,0.0f,0.0f);

				vertexShader=
				decl
				{
					stream 0;
					float v0[3]; //position
					float v3[3]; //normal
					float v7[2]; //uv
				}
				asm
				{
					vs.1.0
					m4x4 oPos,v0,c0			// transform position to clip space

					mul oT0.xy,v7.xy,c64.xy		// output scaled uvs - stage 0
					mul oT1.xy,v7.xy,c64.zw	
					mul oT2.xy,v7.xy,c65.xy	// output scaled uvs - stage 1
					mov oT3.xy,v7.xy		// output uvs - stage 2
					
					m3x3 r0,v3,c4			// transform normal to world space
					dp3 r0.w,r0,r0			// renormalize it
					rsq r0.w,r0.w
					mul r0,r0,r0.w

					dp3 r0,r0,-c16			// normal.light -> lighting constant
					mul r0.xyz,r0,c17		// modulate against material diffuse color
					add oD0.xyz,r0,c19		// add environment light

					mov r1.w,c20.w			// r1.w=1
					dp4 r0,v0,c10			// distance to camera position
					add r0,r0,-c20.x		// distance-fog_start
					mad r0.x,-r0.x,c20.z,r1.w	// 1-(distance-fog_start)*(1/(fog_end-fog_start))
					max oFog.x,r0.x,c95.w		// clamp with custom max value
				};
				
				pixelShader=
				asm
				{
					ps.1.1
					def c0,1,1,1,1
					tex t0			// grass
					tex t1			// sand
					tex t2			// cracked ground
					tex t3			// blending map
					
					mov r1,t0
					lrp r0.rgb,t3.a,r1,t1	// blend t0 with t1 depending on t3 alpha
					+mov r0.a,c0

					mov r1.a,t3.b
					lrp r0.rgb,r1.a,r0,t2	// blend the result with t2 depending on t3 blue
					+mov r0.a,c0
														
					mul r0.rgb,r0,v0	// modulate with diffuse vertex lighting
				
				};
			}




}

action Shader_Terrain
{
	my.skill41=float(40);   //set the U tiling size of Tex 0
	my.skill42=float(40);	//set the V tiling size of Tex 0
	my.skill43=float(10);	//Set the U tiling size of Tex 1
	my.skill44=float(10); 	//Set the V tiling size of Tex 1

	my.flare = off;
	my.transparent = off;
	my.albedo = 0;
	my.material = mat_terrain_multitexture;
}

 

---

If someone could give a brief translation, if needed:

I have had little luck with doing that in a pixelshader v1.1. However, I could give you code to do it in the fixed-function pipe.
The code has multi-pass, using 3 textures, 2 blending maps, and 1 shadowmap.

Here's a bad example:

It would be really nice if you could send me the code stefan-elitz@web.de.

I sent you the WDL that is in this thread:
web page

Thanks, you really helped me!!!

Stefan