ZFX + Developia

Code: Alles auswählen

#version 120

uniform mat4 worldViewProj;
uniform mat3 normalMatrix;
uniform vec3 lightDir;

attribute vec4 vertex;

varying float gras; 
varying float sand;
varying vec3 normal,lightVec;

void main()
{  
   // Text Cord
   gl_TexCoord[0] = gl_MultiTexCoord0;

   // Set the position of the current vertex  
   gl_Position = worldViewProj * vertex;  

   // Calc normal
   normal   = normalMatrix * gl_Normal;
   lightVec = lightDir;

   gras = 1.0f;
   sand = 1.0f;

} 

Code: Alles auswählen

#version 120

uniform sampler2D grasMap;
uniform sampler2D sandMap; 

varying float gras; 
varying float sand;
varying vec3 normal,lightVec;

void main()
{   
    // Blend the Textures
    float sum = gras+sand;
    vec4 color  = (sand/sum)*texture2D(sandMap, gl_TexCoord[0].st)+(gras/sum)*texture2D(grasMap, gl_TexCoord[0].st);
    
    // Create lighting
    vec3 n = normalize(normal);
    float diffuse = max(dot(n, normalize(lightVec)), 0.0);
 
    // Set Fragment color 
    gl_FragColor = diffuse*color;
} 

Code: Alles auswählen

vertex_program TerrainVert glsl
{
    param_named_auto worldViewProj WORLDVIEWPROJ_MATRIX
    param_named_auto normalMatrix NORMAL_MATRIX
    param_named_auto lightDir LIGHT_DIRECTION 0

    source terrain.vert
}

fragment_program TerrainFrag glsl
{
    source terrain.frag
}

material Terrain
{
	technique
	{
		pass
		{
			lighting off

			vertex_program_ref TerrainVert

    			fragment_program_ref TerrainFrag
			{
        			param_named grasMap int 0
        			param_named sandMap int 1
			}

			texture_unit
       			{
        			texture gras.jpg
        		}

			texture_unit
       			{
        			texture sand.jpg
        		}
		}
	}
}